Category : Printer + Display Graphics
Archive   : AVRIL11.ZIP
Filename : AVRILDOC.PS

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(/*)_S 80 _t
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(main\(\))_S 1800 3316 _m
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(FILE)_S 80 _t
(*infile;)_S 1800 3050 _m
(vrl_Light)_S 80 _t
(*light;)_S 1800 2917 _m
(vrl_Camera)_S 80 _t
(*camera;)_S 1800 2784 _m
(vrl_Shape)_S 80 _t
(*asteroidshape)_S 80 _t
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(NULL;)_S 1800 2651 _m
(int)_S 80 _t
(i;)_S 1800 2385 _m
(vrl_SystemStartup\(\);)_S 1800 2119 _m
(vrl_WorldSetHorizon\(0\);)_S 320 _t
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1800 11909 _m
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(=)_S 80 _t
(vrl_SurfacemapGetSurface\(\(vrl_Surfacemap)_S 80 _t
(*\))_S 80 _t
(vrl_TaskGetData\(\),)_S 80 _t
(0\);)_S 1800 2452 _m
(unsigned)_S 80 _t
(long)_S 80 _t
(off;)_S 1800 2319 _m
(int)_S 80 _t
(brightness;)_S 1800 2186 _m
(off)_S 80 _t
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(\(360)_S 80 _t
(*)_S 80 _t
(\(vrl_TaskGetTimeNow\(\))_S 80 _t
(%)_S 80 _t
(pulse_period\)\))_S 80 _t
(/)_S 80 _t
(pulse_period;)_S 1800 2053 _m
(brightness)_S 80 _t
(=)_S 80 _t
(abs\(vrl_FactorMultiply\(vrl_Sine\(float2angle\(off\)\),)_S 80 _t
(255\)\);)_S 1800 1920 _m
(vrl_SurfaceSetBrightness\(surf,)_S 80 _t
(brightness\);)_S 1800 1787 _m
(vrl_SystemRequestRefresh\(\);)_S 8900 1255 _m
/Times-RomanR 600 _ff
(6)_S /CourierR 400 _ff
_ep
_bp /CourierR 400 _ff
0 13200 10200 _ornt
/_r { sflg {/_t {0 rmoveto}bdef /ron false def}
{ /_S /show load def /_t {0 rmoveto}bdef /ron false def}ifelse
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1800 11909 _m
(})_S 1200 11643 _m
(void)_S 80 _t
(main\(\))_S 1800 11510 _m
({)_S 1800 11377 _m
(vrl_Light)_S 80 _t
(*light;)_S 1800 11244 _m
(vrl_Camera)_S 80 _t
(*camera;)_S 1800 11111 _m
(vrl_Shape)_S 80 _t
(*cube,)_S 80 _t
(*sphere,)_S 80 _t
(*cylinder;)_S 1800 10978 _m
(vrl_Surfacemap)_S 80 _t
(*cubemap,)_S 80 _t
(*pulsemap;)_S 1800 10845 _m
(int)_S 80 _t
(i;)_S 1800 10579 _m
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(cube)_S 80 _t
(=)_S 80 _t
(vrl_PrimitiveBox\(100,)_S 80 _t
(100,)_S 80 _t
(100,)_S 80 _t
(NULL\);)_S 1800 10180 _m
(sphere)_S 80 _t
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(vrl_PrimitiveSphere\(100,)_S 80 _t
(6,)_S 80 _t
(6,)_S 80 _t
(NULL\);)_S 1800 10047 _m
(cylinder)_S 80 _t
(=)_S 80 _t
(vrl_PrimitiveCylinder\(100,)_S 80 _t
(50,)_S 80 _t
(100,)_S 80 _t
(8,)_S 80 _t
(NULL\);)_S 1800 9781 _m
(cubemap)_S 80 _t
(=)_S 80 _t
(vrl_SurfacemapCreate\(1\);)_S 1800 9648 _m
(vrl_SurfacemapSetSurface\(cubemap,)_S 80 _t
(0,)_S 80 _t
(vrl_SurfaceCreate\(5\)\);)_S 1800 9515 _m
(pulsemap)_S 80 _t
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(vrl_SurfacemapCreate\(1\);)_S 1800 9382 _m
(vrl_SurfacemapSetSurface\(pulsemap,)_S 80 _t
(0,)_S 80 _t
(vrl_SurfaceCreate\(14\)\);)_S 1800 9116 _m
(spinrate)_S 80 _t
(=)_S 80 _t
(float2angle\(72.0)_S 80 _t
(/)_S 80 _t
(vrl_TimerGetTickRate\(\)\);)_S 160 _t
(/*)_S 80 _t
(deg)_S 80 _t
(per)_S 80 _t
(tick)_S 80 _t
(*/)_S 1800 8983 _m
(bounce_period)_S 80 _t
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(4)_S 80 _t
(*)_S 80 _t
(vrl_TimerGetTickRate\(\);)_S 160 _t
(/*)_S 80 _t
(four-second)_S 80 _t
(period)_S 80 _t
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(maxheight)_S 80 _t
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(float2scalar\(400\);)_S 320 _t
(/*)_S 80 _t
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(units)_S 80 _t
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(pulse_period)_S 80 _t
(=)_S 160 _t
(2)_S 80 _t
(*)_S 80 _t
(vrl_TimerGetTickRate\(\);)_S 160 _t
(/*)_S 80 _t
(two-second)_S 80 _t
(period)_S 80 _t
(*/)_S 1800 8451 _m
(light)_S 80 _t
(=)_S 80 _t
(vrl_LightCreate\(\);)_S 1800 8318 _m
(vrl_LightRotY\(light,)_S 80 _t
(float2angle\(45\)\);)_S 1800 8185 _m
(vrl_LightRotX\(light,)_S 80 _t
(float2angle\(45\)\);)_S 1800 7919 _m
(camera)_S 80 _t
(=)_S 80 _t
(vrl_CameraCreate\(\);)_S 1800 7786 _m
(vrl_CameraRotY\(camera,)_S 80 _t
(float2angle\(5\)\);)_S 1800 7653 _m
(vrl_CameraMove\(camera,)_S 80 _t
(0,)_S 80 _t
(200,)_S 80 _t
(-4400\);)_S 1800 7387 _m
(for)_S 80 _t
(\(i)_S 80 _t
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(0;)_S 80 _t
(i)_S 80 _t
(<)_S 80 _t
(10;)_S 80 _t
(++i\))_S 2400 7254 _m
({)_S 2400 7121 _m
(vrl_Object)_S 80 _t
(*obj)_S 80 _t
(=)_S 80 _t
(vrl_ObjectCreate\(NULL\);)_S 2400 6988 _m
(vrl_ObjectMove\(obj,)_S 80 _t
(rand\(\))_S 80 _t
(%)_S 80 _t
(1000,)_S 80 _t
(rand\(\))_S 80 _t
(%)_S 80 _t
(1000,)_S 80 _t
(rand\(\))_S 80 _t
(%)_S 80 _t
(1000\);)_S 2400 6855 _m
(switch)_S 80 _t
(\(i)_S 80 _t
(&)_S 80 _t
(3\))_S 3000 6722 _m
({)_S 3000 6589 _m
(case)_S 80 _t
(0:)_S 3600 6456 _m
(vrl_ObjectSetShape\(obj,)_S 80 _t
(cube\);)_S 3600 6323 _m
(break;)_S 3000 6190 _m
(case)_S 80 _t
(1:)_S 3600 6057 _m
(vrl_ObjectSetShape\(obj,)_S 80 _t
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(vrl_ObjectSetSurfacemap\(obj,)_S 80 _t
(cubemap\);)_S 3600 5791 _m
(vrl_TaskCreate\(spin,)_S 80 _t
(obj,)_S 80 _t
(10\);)_S 3600 5658 _m
(break;)_S 3000 5525 _m
(case)_S 80 _t
(2:)_S 3600 5392 _m
(vrl_ObjectSetShape\(obj,)_S 80 _t
(sphere\);)_S 3600 5259 _m
(vrl_TaskCreate\(bounce,)_S 80 _t
(obj,)_S 80 _t
(10\);)_S 3600 5126 _m
(break;)_S 3000 4993 _m
(case)_S 80 _t
(3:)_S 3600 4860 _m
(vrl_ObjectSetShape\(obj,)_S 80 _t
(cylinder\);)_S 3600 4727 _m
(vrl_ObjectSetSurfacemap\(obj,)_S 80 _t
(pulsemap\);)_S 3600 4594 _m
(break;)_S 3000 4461 _m
(})_S 2400 4328 _m
(vrl_TaskCreate\(pulsate,)_S 80 _t
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(10\);)_S 2400 4195 _m
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/Times-RomanR 600 _ff
(Three)_S 67 _t
(primitive)_S 67 _t

(shapes)_S 67 _t
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(a)_S 67 _t
(box)_S 67 _t
(\(100)_S 67 _t
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(a)_S 67 _t
(sphere)_S 67 _t
(\(100)_S 67 _t
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(6)_S 67 _t
(facets)_S 67 _t
(around)_S 67 _t
(its)_S 67 _t
("latitude")_S 67 _t
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(6)_S 67 _t
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(its)_S 67 _t
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(cylinder)_S 67 _t
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(100,)_S 67 _t
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(radius)_S 67 _t
(50,)_S 67 _t
(height)_S 67 _t
(100)_S 67 _t
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(8)_S 67 _t
(sides\).)_S 134 _t
(Two)_S 67 _t
(surface)_S 67 _t
(maps)_S 1200 2775 _m
(are)_S 67 _t
(created,)_S 67 _t
(each)_S 67 _t
(with)_S 67 _t
(a)_S 67 _t
(single)_S 67 _t
(surface;)_S 67 _t
(one)_S 67 _t
(called)_S 67 _t
5363 2775 _m
/Times-ItalicR 600 _ff
(cubemap)_S 6085 2775 _m
/Times-RomanR 600 _ff
67 _t
(using)_S 67 _t
(hue)_S 67 _t
(5)_S 67 _t
(and)_S 67 _t
(one)_S 67 _t
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/Times-ItalicR 600 _ff
(pulsemap)_S 1967 2540 _m
/Times-RomanR 600 _ff
67 _t
(using)_S 67 _t
(hue)_S 67 _t
(14.)_S 1800 2072 _m
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(variables)_S 67 _t
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4746 2072 _m
/Times-ItalicR 600 _ff
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/Times-RomanR 600 _ff
67 _t
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(the)_S 67 _t
(cubes)_S 67 _t
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(spin,)_S 67 _t
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(degrees)_S 67 _t
(per)_S 67 _t
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(A)_S 67 _t
(tick)_S 67 _t
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(a)_S 67 _t
(small)_S 67 _t
(unit)_S 67 _t
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(time;)_S 67 _t
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(1000)_S 67 _t
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(7)_S _ep
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0 13200 10200 _ornt
/_r { sflg {/_t {0 rmoveto}bdef /ron false def}
{ /_S /show load def /_t {0 rmoveto}bdef /ron false def}ifelse
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1200 11855 _m
(each)_S 67 _t
(tick)_S 67 _t
(is)_S 67 _t
(one)_S 67 _t
(millisecond.)_S 134 _t
(In)_S 67 _t
(case)_S 67 _t
(this)_S 67 _t
(changes,)_S 67 _t
(you)_S 67 _t
(should)_S 67 _t
(use)_S 67 _t
(the)_S 67 _t
(routine)_S 1200 11622 _m
(vrl_TimerGetTickRate\(\))_S 67 _t
(to)_S 67 _t
(found)_S 67 _t
(out)_S 67 _t
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(many)_S 67 _t
(ticks)_S 67 _t
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(the)_S 67 _t
(float2angle\(\))_S 67 _t
(conversion)_S 67 _t
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(spin\(\))_S 67 _t
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(the)_S 67 _t
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(value,)_S 67 _t
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(having)_S 67 _t
(to)_S 67 _t
(do)_S 67 _t
(the)_S 67 _t
(conversion)_S 67 _t
(each)_S 67 _t
(time)_S 67 _t
(through)_S 67 _t
(the)_S 67 _t
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(loop.)_S 134 _t
(Also)_S 67 _t
(notice)_S 67 _t
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(the)_S 67 _t
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(system)_S 67 _t
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(72)_S 67 _t
(degrees)_S 67 _t
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(second,)_S 67 _t
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(second)_S 67 _t
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(rate)_S 67 _t
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2178 9756 _m
/Times-ItalicR 600 _ff
(bounce_period)_S 3378 9756 _m
/Times-RomanR 600 _ff
67 _t
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(time)_S 67 _t
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(a)_S 67 _t
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(ball)_S 67 _t
(to)_S 67 _t
(go)_S 67 _t
(through)_S 67 _t
(one)_S 67 _t
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(up-down)_S 67 _t
(cycle.)_S 134 _t
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/Times-ItalicR 600 _ff
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(,)_S 67 _t
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(400)_S 67 _t
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(internal)_S 67 _t
("vrl_Scalar")_S 67 _t
(format.)_S 134 _t
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/Times-ItalicR 600 _ff
(pulse_period)_S 5070 9053 _m
/Times-RomanR 600 _ff
67 _t
(is)_S 67 _t
(set)_S 67 _t
(to)_S 67 _t
(two)_S 67 _t
(seconds.)_S 1800 8587 _m
(Again,)_S 67 _t
(a)_S 67 _t
(light)_S 67 _t
(and)_S 67 _t
(camera)_S 67 _t
(are)_S 67 _t
(set)_S 67 _t
(up)_S 67 _t
(so)_S 67 _t
(we)_S 67 _t
(can)_S 67 _t
(view)_S 67 _t
(the)_S 67 _t
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(and)_S 67 _t
(ten)_S 67 _t
(objects)_S 67 _t
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(randomly)_S 67 _t
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(cubes)_S 67 _t
(\(using)_S 67 _t
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(color)_S 1200 8121 _m
(assigned)_S 67 _t
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(vrl_PrimitiveBox\(\)\).)_S 134 _t
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(cubes,)_S 67 _t
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(surfacemap.)_S 1800 7422 _m
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(make)_S 67 _t
(each)_S 67 _t
(cube)_S 67 _t
(spin.)_S 134 _t
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(function,)_S 67 _t
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(function)_S 67 _t
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(spin\(\),)_S 1200 6956 _m
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(a)_S 67 _t
(pointer)_S 67 _t
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(the)_S 67 _t
(object)_S 67 _t
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(10)_S 67 _t
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(The)_S 67 _t
(period)_S 67 _t
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(affect)_S 67 _t
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(speed)_S 67 _t
(at)_S 67 _t
(which)_S 67 _t
(the)_S 67 _t
(cube)_S 67 _t
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(spin\(\))_S 67 _t
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(the)_S 67 _t
(number,)_S 67 _t
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(the)_S 1200 6257 _m
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(CPU)_S 67 _t
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(as)_S 67 _t
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(cubes.)_S 134 _t
(The)_S 67 _t
(cylinders)_S 1200 5325 _m
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(a)_S 67 _t
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(pulsing)_S 67 _t
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(static)_S 80 _t
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(spin\(void\))_S 1800 3615 _m
({)_S 1800 3482 _m
(vrl_ObjectRotY\(vrl_TaskGetData\(\),)_S 80 _t
(vrl_TaskGetElapsed\(\))_S 80 _t
(*)_S 80 _t
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(})_S /Times-RomanR 600 _ff
1200 2796 _m
(This)_S 67 _t
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(a)_S 67 _t
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(vrl_TaskGetData\(\);)_S 67 _t
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(task.)_S 134 _t
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(task)_S 67 _t
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(\(in)_S 67 _t
(ticks\))_S 67 _t
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(multiplies)_S 67 _t
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3201 2328 _m
/Times-ItalicR 600 _ff
(spinrate)_S 3857 2328 _m
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(,)_S 67 _t
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(the)_S 67 _t
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(\(Y\))_S 1200 2095 _m
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(static)_S 80 _t
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(vrl_TaskGetData\(\);)_S 1800 10811 _m
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(\(vrl_TaskGetTimeNow\(\))_S 80 _t
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(bounce_period\)\))_S 80 _t
(/)_S 80 _t
(bounce_period;)_S 1800 10412 _m
(height)_S 80 _t
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1200 9593 _m
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(circle\))_S 67 _t
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(the)_S 67 _t
(object.)_S 134 _t
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(vrl_ObjectGetX\(\))_S 67 _t
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(surface.)_S 134 _t
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(255.)_S 1200 5369 _m
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1800 4893 _m
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(and)_S 67 _t
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(/*)_S 80 _t
(EXAMPLE5)_S 80 _t
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(a)_S 80 _t
(cube)_S 80 _t
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(Cyberman)_S 80 _t
(*/)_S 1200 3982 _m
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(vrl_Object)_S 80 _t
(*cube)_S 80 _t
(=)_S 80 _t
(NULL;)_S 1200 2785 _m
(static)_S 80 _t
(void)_S 80 _t
(cube_mover\(void\))_S 1800 2652 _m
({)_S 1800 2519 _m
(vrl_Device)_S 80 _t
(*dev)_S 80 _t
(=)_S 80 _t
(vrl_TaskGetData\(\);)_S 1800 2386 _m
(vrl_Object)_S 80 _t
(*viewer)_S 80 _t
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(vrl_CameraGetObject\(vrl_WorldGetCamera\(\)\);)_S 1800 2253 _m
(vrl_Vector)_S 80 _t
(v;)_S 1800 2120 _m
(if)_S 80 _t
(\(dev->buttons\))_S 2400 1987 _m
({)_S 2400 1854 _m
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(vrl_ObjectVectorMove\(cube,)_S 80 _t
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(VRL_COORD_OBJREL,)_S 80 _t
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(vrl_ObjectRotate\(cube,)_S 80 _t
(vrl_DeviceGetValue\(dev,)_S 80 _t
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(X,)_S 80 _t
(VRL_COORD_OBJREL,)_S 80 _t
(viewer\);)_S 1800 11111 _m
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(vrl_DeviceGetValue\(dev,)_S 80 _t
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(Z,)_S 80 _t
(VRL_COORD_OBJREL,)_S 80 _t
(viewer\);)_S 1800 10845 _m
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(vrl_ObjectTranslate\(cube,)_S 80 _t
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(viewer\);)_S 1800 10446 _m
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(void)_S 80 _t
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(vrl_Camera)_S 80 _t
(*camera;)_S 1800 9515 _m
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(cube)_S 80 _t
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(vrl_ObjectCreate\(vrl_PrimitiveBox\(100,)_S 80 _t
(100,)_S 80 _t
(100,)_S 80 _t
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(vrl_ObjectRotY\(cube,)_S 80 _t
(float2angle\(45\)\);)_S 1800 8584 _m
(light)_S 80 _t
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(camera)_S 80 _t
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(0,)_S 80 _t
(500,)_S 80 _t
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(dev)_S 80 _t
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(vrl_DeviceOpen\(vrl_CybermanDevice,)_S 80 _t
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(3,)_S 80 _t
(2000\)\);)_S 1800 7387 _m
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(float2scalar\(50\)\);)_S 2400 6988 _m
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(Z,)_S 80 _t
(float2scalar\(50\)\);)_S 2400 6722 _m
(vrl_TaskCreate\(cube_mover,)_S 80 _t
(dev,)_S 80 _t
(0\);)_S 2400 6589 _m
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1200 5770 _m
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(vrl_DeviceOpen\(\))_S 67 _t
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(port)_S 1200 2508 _m
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1800 11855 _m
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(device.)_S 134 _t
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1200 5370 _m
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(the)_S 1200 3522 _m
(screen)_S 67 _t
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_bp /Times-RomanR 600 _ff
0 13200 10200 _ornt
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1800 11855 _m
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(a)_S 67 _t
(keystroke)_S 67 _t
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1200 11622 _m
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(vrl_ApplicationMouseUp\(\).)_S 1800 11156 _m
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(vrl_ApplicationDrawUnder\(\),)_S 1200 10690 _m
(vrl_ApplicationDrawOver\(\))_S 67 _t
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(anything\).)_S 134 _t
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(vrl_SystemStopRunning\(\))_S 67 _t
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(AVRIL;)_S 1200 9525 _m
(it)_S 67 _t
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(A)_S 80 _t
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/Times-RomanR 600 _ff
1200 8553 _m
(Objects)_S 67 _t
(can)_S 67 _t
(have)_S 67 _t
(functions)_S 67 _t
(and)_S 67 _t
(data)_S 67 _t
(associated)_S 67 _t
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(them.)_S 134 _t
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(the)_S 67 _t
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(data)_S 67 _t
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(the)_S 67 _t
(object.)_S 1800 7621 _m
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(default)_S 67 _t
(vrl_ApplicationInit\(\))_S 67 _t
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(up)_S 67 _t
(an)_S 67 _t
(object)_S 67 _t
(function)_S 67 _t
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(input)_S 1200 7388 _m
(device)_S 67 _t
(\(the)_S 67 _t
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(vrl_Device)_S 80 _t
(*headdev)_S 80 _t
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(vrl_DeviceFind\("head"\);)_S 1800 6610 _m
(if)_S 80 _t
(\(headdev)_S 80 _t
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(NULL\))_S 2400 6477 _m
(headdev)_S 80 _t
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(vrl_DeviceOpen\(vrl_KeypadDevice,)_S 80 _t
(0\);)_S 1800 6344 _m
(head)_S 80 _t
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(vrl_CameraGetObject\(vrl_WorldGetCamera\(\)\);)_S 1800 6211 _m
(vrl_ObjectSetApplicationData\(head,)_S 80 _t
(headdev\);)_S 1800 6078 _m
(vrl_ObjectSetFunction\(head,)_S 80 _t
(object_move_locally\);)_S /Times-RomanR 600 _ff
1200 5658 _m
(If)_S 67 _t
(no)_S 67 _t
(head)_S 67 _t
(device)_S 67 _t
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(configuration)_S 67 _t
(file,)_S 67 _t
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(used.)_S 134 _t
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(head)_S 67 _t
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(\(the)_S 67 _t
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(being)_S 67 _t
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(camera)_S 67 _t
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(attached\),)_S 67 _t
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(head)_S 67 _t
(object's)_S 67 _t
(application-)_S 1200 5192 _m
(specific)_S 67 _t
(data)_S 67 _t
(field)_S 67 _t
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(point)_S 67 _t
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(the)_S 67 _t
(headdev.)_S 134 _t
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(head's)_S 67 _t
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(object_move_locally\(\),)_S 67 _t
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(this:)_S 1200 4547 _m
/CourierR 400 _ff
(static)_S 80 _t
(int)_S 80 _t
(object_move_locally\(vrl_Object)_S 80 _t
(*obj\))_S 1800 4414 _m
({)_S 1800 4281 _m
(return)_S 80 _t
(object_mover\(obj,)_S 80 _t
(vrl_ObjectGetApplicationData\(obj\),)_S 80 _t
(VRL_COORD_LOCAL\);)_S 1800 4148 _m
(})_S /Times-RomanR 600 _ff
1200 3728 _m
(The)_S 67 _t
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(the)_S 1200 3495 _m
(vrl_ObjectUpdate\(\))_S 67 _t
(or)_S 67 _t
(vrl_WorldUpdate\(\))_S 67 _t
(routines.)_S 134 _t
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(object_move_locally\(\))_S 67 _t
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(object's)_S 67 _t
(application)_S 67 _t
(data.)_S 1800 2563 _m
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(object_mover\(\))_S 67 _t
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(general.)_S 8800 1255 _m
(14)_S _ep
_bp /Times-RomanR 600 _ff
0 13200 10200 _ornt
/_r { sflg {/_t {0 rmoveto}bdef /ron false def}
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1200 11825 _m
/Times-BoldR 720 _ff
(Lots)_S 80 _t
(of)_S 80 _t
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/Times-RomanR 600 _ff
1800 11349 _m
(The)_S 67 _t
(file)_S 67 _t
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(vrl_ApplicationDrawOver\(\),)_S 1200 11116 _m
(vrl_ApplicationMouseUp\(\),)_S 67 _t
(vrl_ApplicationKey\(\))_S 67 _t
(and)_S 67 _t
(vrl_ApplicationInit\(\))_S 67 _t
(that)_S 67 _t
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(all)_S 67 _t
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(vrl_ApplicationMouseUp\(\))_S 67 _t
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(this:)_S /CourierR 400 _ff
1200 10338 _m
(vrl_Object)_S 80 _t
(*active_object)_S 80 _t
(=)_S 80 _t
(NULL;)_S 160 _t
(/*)_S 80 _t
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(the)_S 80 _t
(currently-selected)_S 80 _t
(object,)_S 80 _t
(if)_S 80 _t
(any)_S 80 _t
(*/)_S 1200 10072 _m
(void)_S 80 _t
(vrl_ApplicationMouseUp\(int)_S 80 _t
(x,)_S 80 _t
(int)_S 80 _t
(y,)_S 80 _t
(unsigned)_S 80 _t
(int)_S 80 _t
(buttons\))_S 1800 9939 _m
({)_S 1800 9806 _m
(vrl_Object)_S 80 _t
(*old_active)_S 80 _t
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(active_object;)_S 1800 9673 _m
(if)_S 80 _t
(\(\(buttons)_S 80 _t
(&)_S 80 _t
(1\))_S 80 _t
(==)_S 80 _t
(0\))_S 2400 9540 _m
(return;)_S 1800 9407 _m
(vrl_RenderMonitorInit\(x,)_S 80 _t
(y\);)_S 1800 9274 _m
(vrl_SystemRender\(NULL\);)_S 160 _t
(/*)_S 80 _t
(redraw)_S 80 _t
(screen)_S 80 _t
(*/)_S 1800 9141 _m
(if)_S 80 _t
(\(vrl_RenderMonitorRead\(&active_object,)_S 80 _t
(NULL,)_S 80 _t
(NULL\)\))_S 2400 9008 _m
({)_S 2400 8875 _m
(if)_S 80 _t
(\(active_object)_S 80 _t
(==)_S 80 _t
(old_active\))_S 3000 8742 _m
(active_object)_S 80 _t
(=)_S 80 _t
(NULL;)_S 2400 8609 _m
(else)_S 3000 8476 _m
(vrl_ObjectSetHighlight\(active_object,)_S 80 _t
(1\);)_S 2400 8343 _m
(})_S 1800 8210 _m
(if)_S 80 _t
(\(old_active\))_S 2400 8077 _m
(vrl_ObjectSetHighlight\(old_active,)_S 80 _t
(0\);)_S 1800 7944 _m
(vrl_SystemRequestRefresh\(\);)_S 1800 7811 _m
(})_S /Times-RomanR 600 _ff
1200 7391 _m
(This)_S 67 _t
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(select)_S 67 _t
(objects.)_S 134 _t
(The)_S 1200 7158 _m
(mouse)_S 67 _t
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(monitor)_S 1200 6692 _m
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(vrl_RenderMonitorRead\(\).)_S 134 _t
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5803 6457 _m
/Times-ItalicR 600 _ff
(&active_object)_S 7025 6457 _m
/Times-RomanR 600 _ff
67 _t
(to)_S 67 _t
(the)_S 1200 6222 _m
(vrl_RenderMonitorRead\(\))_S 67 _t
(function,)_S 67 _t
4150 6222 _m
/Times-ItalicR 600 _ff
(active_object)_S 5217 6222 _m
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67 _t
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(mouse)_S 1200 5989 _m
(cursor)_S 67 _t
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(of.)_S 134 _t
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(6.)_S 134 _t
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7703 5754 _m
/Times-ItalicR 600 _ff
(active_object)_S 8770 5754 _m
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67 _t
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(on.)_S 134 _t
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(be)_S 1200 5055 _m
(refreshed)_S 67 _t
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(vrl_ApplicationKey\(\))_S 67 _t
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(keystrokes:)_S 1200 3944 _m
/CourierR 400 _ff
(void)_S 80 _t
(vrl_ApplicationKey\(unsigned)_S 80 _t
(int)_S 80 _t
(c\))_S 1800 3811 _m
({)_S 1800 3678 _m
(static)_S 80 _t
(int)_S 80 _t
(lastkey)_S 80 _t
(=)_S 80 _t
(0;)_S 1800 3545 _m
(if)_S 80 _t
(\(c)_S 80 _t
(==)_S 80 _t
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({)_S 2400 3279 _m
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0 13200 10200 _ornt
/_r { sflg {/_t {0 rmoveto}bdef /ron false def}
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1200 11855 _m
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3529 11620 _m
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(void)_S 80 _t
(vrl_ApplicationDrawOver\(vrl_RenderStatus)_S 80 _t
(*stat\))_S 1800 8512 _m
({)_S 1800 8379 _m
(vrl_Camera)_S 80 _t
(*cam)_S 80 _t
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(char)_S 80 _t
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(\(vrl_ConfigGetPositionDisplay\(\)\))_S 2400 7980 _m
({)_S 2400 7847 _m
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(if)_S 80 _t
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(250,)_S 80 _t
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(35\);)_S 1800 6517 _m
(if)_S 80 _t
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({)_S 2400 6251 _m
(sprintf\(buff,)_S 80 _t
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(stat->memory)_S 80 _t
(?)_S 160 _t
('M')_S 80 _t
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(?)_S 80 _t
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(20,)_S 80 _t
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(*dev)_S 80 _t
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(int)_S 80 _t
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(compass)_S 67 _t
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1800 4122 _m
(We've)_S 67 _t
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/CourierR 400 _ff
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(-1;)_S 2400 2546 _m
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(atexit\(vrl_MouseQuit\);)_S 1800 2014 _m
(if)_S 80 _t
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(-2;)_S 1800 1748 _m
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1800 11909 _m
(if)_S 80 _t
(\(vrl_RenderInit\(800,)_S 80 _t
(800,)_S 80 _t
(500,)_S 80 _t
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(return)_S 80 _t
(-3;)_S 1800 11643 _m
(atexit\(vrl_RenderQuit\);)_S 1800 11510 _m
(atexit\(vrl_DeviceCloseAll\);)_S 1800 11377 _m
(atexit\(vrl_SerialCloseAll\);)_S 1800 11244 _m
(/*)_S 80 _t
(make)_S 80 _t
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(that)_S 80 _t
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(therefore)_S 80 _t
(the)_S 80 _t
(atexit\(\))_S 80 _t
(functions])_S 80 _t
(get)_S 1800 11111 _m
80 _t
80 _t
80 _t
(called)_S 80 _t
(if)_S 80 _t
(there)_S 80 _t
(are)_S 80 _t
(any)_S 80 _t
(fatal)_S 80 _t
(errors)_S 80 _t
(*/)_S 1800 10978 _m
(signal\(SIGABRT,)_S 80 _t
(exit\);)_S 1800 10845 _m
(signal\(SIGFPE,)_S 80 _t
(exit\);)_S 1800 10712 _m
(signal\(SIGILL,)_S 80 _t
(exit\);)_S 1800 10579 _m
(signal\(SIGINT,)_S 80 _t
(exit\);)_S 1800 10446 _m
(signal\(SIGSEGV,)_S 80 _t
(exit\);)_S 1800 10313 _m
(signal\(SIGTERM,)_S 80 _t
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1200 9361 _m
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(vrl_SystemStartup\(\))_S 67 _t
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(initialization)_S 67 _t
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(all)_S 67 _t
(the)_S 67 _t
(various)_S 67 _t
(AVRIL)_S 67 _t
(subsystems.)_S 67 _t
1200 9128 _m
(It)_S 67 _t
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(calling)_S 67 _t
(vrl_MathInit\(\),)_S 67 _t
(which)_S 67 _t
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(up)_S 67 _t
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(trig)_S 67 _t
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(AVRIL)_S 67 _t
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(a)_S 67 _t
(table)_S 67 _t
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(sines)_S 67 _t
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(by)_S 67 _t
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(vrl_Sine\(\))_S 67 _t
(function)_S 67 _t
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(earlier\).)_S 134 _t
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(the)_S 1200 8662 _m
(display)_S 67 _t
(is)_S 67 _t
(initialized)_S 67 _t
(into)_S 67 _t
(graphics)_S 67 _t
(mode,)_S 67 _t
(and)_S 67 _t
(the)_S 67 _t
(mouse)_S 67 _t
(and)_S 67 _t
(timer)_S 67 _t
(are)_S 67 _t
(set)_S 67 _t
(up.)_S 1800 8196 _m
(After)_S 67 _t
(that,)_S 67 _t
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(rendering)_S 67 _t
(engine)_S 67 _t
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(initialized;)_S 67 _t
(the)_S 67 _t
(parameters)_S 67 _t
(to)_S 67 _t
(the)_S 1200 7963 _m
(vrl_RenderInit\(\))_S 67 _t
(function)_S 67 _t
(may)_S 67 _t
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(a)_S 67 _t
(future)_S 67 _t
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(the)_S 67 _t
(software,)_S 67 _t
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(use)_S 67 _t
(the)_S 67 _t
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(52000)_S 67 _t
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(a)_S 67 _t
(scene,)_S 67 _t
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("memory")_S 67 _t
(value)_S 67 _t
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(the)_S 67 _t
(status)_S 67 _t
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(earlier)_S 1200 7031 _m
(\(which)_S 67 _t
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(vrl_ApplicationDrawOver\(\)\).)_S 134 _t
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(renderer)_S 67 _t
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(\(for)_S 67 _t
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(is)_S 67 _t
(shut)_S 67 _t
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(program)_S 67 _t
(exits.)_S 134 _t
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(signal\(\))_S 67 _t
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(the)_S 67 _t
(system.)_S 1800 5167 _m
(Finally,)_S 67 _t
(vrl_SystemStartRunning\(\))_S 67 _t
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(an)_S 67 _t
(initial)_S 67 _t
(display)_S 67 _t
(refresh)_S 67 _t
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1200 4934 _m
(The)_S 67 _t
(vrl_SystemStartRunning\(\),)_S 67 _t
(vrl_SystemStopRunning\(\),)_S 67 _t
(and)_S 67 _t
(vrl_SystemIsRunning\(\))_S 67 _t
(routines)_S 1200 4701 _m
(are)_S 67 _t
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(They)_S 67 _t
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(set)_S 67 _t
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(check)_S 1200 4466 _m
(the)_S 67 _t
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(the)_S 67 _t
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3268 4466 _m
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(;)_S 67 _t
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(just)_S 67 _t
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(a)_S 67 _t
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(vrl_SystemRun\(\))_S 67 _t
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(the)_S 67 _t
(main)_S 67 _t
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(application.)_S 134 _t
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/CourierR 400 _ff
(void)_S 80 _t
(vrl_SystemRun\(void\))_S 1800 2756 _m
({)_S 1800 2623 _m
(vrl_ApplicationInit\(\);)_S 1800 2490 _m
(while)_S 80 _t
(\(vrl_SystemIsRunning\(\)\))_S 2400 2357 _m
({)_S 2400 2224 _m
(vrl_Object)_S 80 _t
(*list;)_S 2400 2091 _m
(if)_S 80 _t
(\(vrl_KeyboardCheck\(\)\))_S 3000 1958 _m
(vrl_ApplicationKey\(vrl_KeyboardRead\(\)\);)_S 2400 1825 _m
(check_mouse\(\);)_S 2400 1692 _m
(vrl_TaskRun\(\);)_S 8800 1255 _m
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(18)_S /CourierR 400 _ff
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2400 11909 _m
(vrl_DevicePollAll\(\);)_S 2400 11776 _m
(list)_S 80 _t
(=)_S 80 _t
(vrl_WorldUpdate\(\);)_S 2400 11643 _m
(if)_S 80 _t
(\(vrl_SystemQueryRefresh\(\)\))_S 3000 11510 _m
(vrl_SystemRender\(list\);)_S 2400 11377 _m
(})_S 1800 11244 _m
(})_S /Times-RomanR 600 _ff
1200 10824 _m
(It)_S 67 _t
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(come)_S 67 _t
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(surprise)_S 67 _t
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(an)_S 67 _t
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(a)_S 67 _t
(GUI)_S 67 _t
(application;)_S 67 _t
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(some)_S 67 _t
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(exactly)_S 67 _t
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(vrl_SystemRun\(\))_S 67 _t
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(implemented.)_S 134 _t
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(a)_S 67 _t
(DOS)_S 1200 10358 _m
(platform)_S 67 _t
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(mouse)_S 67 _t
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(keyboard)_S 67 _t
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(If)_S 67 _t
(a)_S 67 _t
(key)_S 67 _t
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(the)_S 67 _t
(key)_S 67 _t
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(vrl_ApplicationKey\(\).)_S 134 _t
(The)_S 67 _t
(function)_S 67 _t
(check_mouse\(\))_S 67 _t
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(static)_S 80 _t
(void)_S 80 _t
(check_mouse\(void\))_S 1800 8881 _m
({)_S 1800 8748 _m
(unsigned)_S 80 _t
(int)_S 80 _t
(mouse_buttons;)_S 1800 8615 _m
(if)_S 80 _t
(\(vrl_MouseGetUsage\(\)\))_S 160 _t
(/*)_S 80 _t
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(as)_S 80 _t
(6D)_S 80 _t
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(device)_S 80 _t
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(return;)_S 1800 8349 _m
(if)_S 80 _t
(\(!vrl_MouseRead\(NULL,)_S 80 _t
(NULL,)_S 80 _t
(NULL\)\))_S 160 _t
(/*)_S 80 _t
(mouse)_S 80 _t
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(changed)_S 80 _t
(*/)_S 2400 8216 _m
(return;)_S 1800 8083 _m
(vrl_MouseRead\(NULL,)_S 80 _t
(NULL,)_S 80 _t
(&mouse_buttons\);)_S 1800 7950 _m
(if)_S 80 _t
(\(mouse_buttons\))_S 160 _t
(/*)_S 80 _t
(button)_S 80 _t
(down)_S 80 _t
(*/)_S 2400 7817 _m
({)_S 2400 7684 _m
(int)_S 80 _t
(mouse_x,)_S 80 _t
(mouse_y;)_S 2400 7551 _m
(int)_S 80 _t
(win_x,)_S 80 _t
(win_y;)_S 2400 7418 _m
(unsigned)_S 80 _t
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(mouse_buttons;)_S 2400 7285 _m
(vrl_DisplayGetWindow\(&win_x,)_S 80 _t
(&win_y,)_S 80 _t
(NULL,)_S 80 _t
(NULL\);)_S 2400 7152 _m
(while)_S 80 _t
(\(mouse_buttons\))_S 160 _t
(/*)_S 80 _t
(wait)_S 80 _t
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(button)_S 80 _t
(release)_S 80 _t
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(vrl_MouseRead\(&mouse_x,)_S 80 _t
(&mouse_y,)_S 80 _t
(&mouse_buttons\);)_S 2400 6886 _m
(if)_S 80 _t
(\(down_buttons)_S 80 _t
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(vrl_ApplicationMouseUp\(mouse_x)_S 80 _t
(-)_S 80 _t
(win_x,)_S 80 _t
(mouse_y)_S 80 _t
(-)_S 80 _t
(win_y,)_S 80 _t
(down_buttons\);)_S 2400 6620 _m
(})_S 1800 6487 _m
(})_S /Times-RomanR 600 _ff
1200 6067 _m
(The)_S 67 _t
(vrl_MouseGetUsage\(\))_S 67 _t
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(because)_S 67 _t
(the)_S 67 _t
(mouse)_S 67 _t
(can)_S 67 _t
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(two)_S 1200 5834 _m
(completely)_S 67 _t
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(a)_S 67 _t
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(selecting)_S 67 _t
(objects)_S 67 _t
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(screen,)_S 67 _t
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(a)_S 67 _t
(6)_S 1200 5601 _m
(Degree-Of-Freedom)_S 67 _t
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(input)_S 1200 5368 _m
(devices.)_S 134 _t
(If)_S 67 _t
(vrl_MouseGetUsage\(\))_S 67 _t
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(a)_S 1200 5135 _m
(6D)_S 67 _t
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(mouse)_S 67 _t
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(vrl_MouseRead\(\))_S 67 _t
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(mouse)_S 67 _t
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1911 3968 _m
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(,)_S 67 _t
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(the)_S 67 _t
(mouse)_S 67 _t
(cursor)_S 67 _t
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(current)_S 67 _t
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(vrl_SystemRun\(\),)_S 67 _t
(the)_S 67 _t
(vrl_TaskRun\(\))_S 67 _t
(function)_S 67 _t
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(all)_S 67 _t
(the)_S 67 _t
(tasks)_S 67 _t
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(have)_S 67 _t
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(created)_S 67 _t
(\(like)_S 67 _t
(the)_S 67 _t
(spin\(\),)_S 67 _t
(bounce\(\))_S 67 _t
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(pulsate\(\))_S 67 _t
(tasks)_S 67 _t
(we)_S 67 _t
(used)_S 67 _t
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(example)_S 67 _t
(4\).)_S 134 _t
(Next,)_S 1200 2803 _m
(vrl_WorldUpdate\(\))_S 67 _t
(is)_S 67 _t
(called;)_S 67 _t
(it)_S 67 _t
(walks)_S 67 _t
(the)_S 67 _t
(hierarchical)_S 67 _t
(tree)_S 67 _t
(of)_S 67 _t
(objects)_S 67 _t
(in)_S 67 _t
(the)_S 67 _t
(world,)_S 67 _t
(updating)_S 1200 2570 _m
(their)_S 67 _t
(location)_S 67 _t
(and)_S 67 _t
(orientation)_S 67 _t
(information)_S 67 _t
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(threading)_S 67 _t
(them)_S 67 _t
(onto)_S 67 _t
(a)_S 67 _t
(linked)_S 67 _t
(list)_S 67 _t
(which)_S 67 _t
(is)_S 1200 2337 _m
(returned)_S 67 _t
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(the)_S 67 _t
(value)_S 67 _t
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(the)_S 67 _t
(vrl_WorldUpdate\(\))_S 67 _t
(function.)_S 134 _t
(Walking)_S 67 _t
(the)_S 67 _t
(tree)_S 67 _t
(also)_S 67 _t
(causes)_S 67 _t
(the)_S 1200 2104 _m
(function)_S 67 _t
(associated)_S 67 _t
(with)_S 67 _t
(each)_S 67 _t
(object)_S 67 _t
(to)_S 67 _t
(be)_S 67 _t
(called.)_S 8800 1255 _m
(19)_S _ep
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/_r { sflg {/_t {0 rmoveto}bdef /ron false def}
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1800 11855 _m
(If)_S 67 _t
(the)_S 67 _t
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(vrl_SystemRender\(\))_S 67 _t
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(render.)_S 1800 10923 _m
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(vrl_SystemRender\(\))_S 67 _t
(routine)_S 67 _t
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(updating)_S 67 _t
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(screen.)_S 134 _t
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(though)_S 1200 10690 _m
(source)_S 67 _t
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(AVRIL,)_S 67 _t
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(features)_S 67 _t
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(added.)_S 134 _t
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(this:)_S 1200 10045 _m
/CourierR 400 _ff
(vrl_RenderStatus)_S 80 _t
(*vrl_SystemRender\(vrl_Object)_S 80 _t
(*list\))_S 1800 9912 _m
({)_S 1800 9779 _m
(static)_S 80 _t
(vrl_Object)_S 80 _t
(*lastlist)_S 80 _t
(=)_S 80 _t
(NULL;)_S 1800 9646 _m
(int)_S 80 _t
(pagenum;)_S 1800 9513 _m
(vrl_RenderStatus)_S 80 _t
(*stat;)_S 1800 9380 _m
(vrl_Time)_S 80 _t
(render_start;)_S 1800 9247 _m
(if)_S 80 _t
(\(list)_S 80 _t
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(NULL\))_S 2400 9114 _m
({)_S 2400 8981 _m
(list)_S 80 _t
(=)_S 80 _t
(lastlist;)_S 2400 8848 _m
(if)_S 80 _t
(\(list)_S 80 _t
(==)_S 80 _t
(NULL\))_S 3000 8715 _m
(return)_S 80 _t
(NULL;)_S 2400 8582 _m
(})_S 1800 8449 _m
(else)_S 2400 8316 _m
(lastlist)_S 80 _t
(=)_S 80 _t
(list;)_S 1800 8183 _m
(pagenum)_S 80 _t
(=)_S 80 _t
(vrl_DisplayGetDrawPage\(\);)_S 1800 8050 _m
(if)_S 80 _t
(\(++pagenum)_S 80 _t
(>=)_S 80 _t
(vrl_DisplayGetNpages\(\)\))_S 2400 7917 _m
(pagenum)_S 80 _t
(=)_S 80 _t
(0;)_S 1800 7784 _m
(vrl_DisplaySetDrawPage\(pagenum\);)_S 1800 7651 _m
(render_start)_S 80 _t
(=)_S 80 _t
(vrl_TimerRead\(\);)_S 1800 7518 _m
(vrl_RenderBegin\(vrl_WorldGetCamera\(\),)_S 80 _t
(vrl_WorldGetLights\(\)\);)_S 1800 7385 _m
(vrl_RenderSetAmbient\(vrl_WorldGetAmbient\(\)\);)_S 1800 7252 _m
(if)_S 80 _t
(\(vrl_WorldGetScreenClear\(\)\))_S 2400 7119 _m
({)_S 2400 6986 _m
(if)_S 80 _t
(\(vrl_WorldGetHorizon\(\))_S 80 _t
(&&)_S 80 _t
(!vrl_DisplayGetDrawMode\(\)\))_S 3000 6853 _m
(vrl_RenderHorizon\(\);)_S 2400 6720 _m
(else)_S 3000 6587 _m
(vrl_DisplayClear\(vrl_WorldGetSkyColor\(\)\);)_S 2400 6454 _m
(})_S 1800 6321 _m
(vrl_ApplicationDrawUnder\(\);)_S 1800 6188 _m
(stat)_S 80 _t
(=)_S 80 _t
(vrl_RenderObjlist\(list\);)_S 1800 6055 _m
(last_render_ticks)_S 80 _t
(=)_S 80 _t
(vrl_TimerRead\(\))_S 80 _t
(-)_S 80 _t
(render_start;)_S 1800 5922 _m
(vrl_ApplicationDrawOver\(stat\);)_S 1800 5789 _m
(vrl_MouseCursorHide\(\);)_S 1800 5656 _m
(vrl_DisplayUpdate\(\);)_S 1800 5523 _m
(vrl_DisplaySetViewPage\(pagenum\);)_S 1800 5390 _m
(vrl_MouseCursorShow\(\);)_S 1800 5257 _m
(need_to_redraw)_S 80 _t
(=)_S 80 _t
(0;)_S 1800 5124 _m
(return)_S 80 _t
(stat;)_S 1800 4991 _m
(})_S /Times-RomanR 600 _ff
1200 4571 _m
(If)_S 67 _t
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(list)_S 67 _t
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(vrl_SystemRender\(\))_S 67 _t
(routine)_S 67 _t
(is)_S 67 _t
(given)_S 67 _t
(is)_S 67 _t
(NULL)_S 67 _t
(\(as)_S 67 _t
(was)_S 67 _t
(the)_S 67 _t
(case)_S 67 _t
(in)_S 67 _t
(our)_S 1200 4338 _m
(example)_S 67 _t
(vrl_ApplicationMouseUp\(\))_S 67 _t
(routine)_S 67 _t
(in)_S 67 _t
(input.c\))_S 67 _t
(then)_S 67 _t
(the)_S 67 _t
(last)_S 67 _t
(list)_S 67 _t
(of)_S 67 _t
(objects)_S 67 _t
(rendered)_S 67 _t
(is)_S 1200 4105 _m
(used.)_S 1800 3639 _m
(The)_S 67 _t
(system)_S 67 _t
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(and)_S 67 _t
(a)_S 1200 3406 _m
("view")_S 67 _t
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(the)_S 67 _t
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(viewing\).)_S 134 _t
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(vrl_SystemRender\(\))_S 67 _t
(routine)_S 1200 3173 _m
(gets)_S 67 _t
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(page\).)_S 134 _t
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1511 2705 _m
/Times-ItalicR 600 _ff
(render_start)_S 2511 2705 _m
/Times-RomanR 600 _ff
67 _t
(variable)_S 67 _t
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(the)_S 67 _t
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(time)_S 67 _t
(\(to)_S 67 _t
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(track)_S 67 _t
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(how)_S 67 _t
(long)_S 67 _t
(it)_S 67 _t
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(this)_S 1200 2472 _m
(screen\),)_S 67 _t
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(vrl_RenderBegin\(\))_S 67 _t
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(camera)_S 67 _t
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(list)_S 67 _t
(of)_S 67 _t
(light)_S 67 _t
(sources.)_S 134 _t
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(sets)_S 67 _t
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(ambient)_S 67 _t
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(level)_S 67 _t
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(the)_S 67 _t
(current)_S 67 _t
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(screen,)_S 67 _t
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(a)_S 67 _t
(horizon.)_S 134 _t
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(vrl_ApplicationDrawUnder\(\))_S 67 _t
(routine)_S 67 _t
(we)_S 1200 1773 _m
(looked)_S 67 _t
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(vrl_RenderObjectlist\(\))_S 67 _t
(routine)_S 67 _t
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(do)_S 67 _t
(the)_S 8800 1255 _m
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0 13200 10200 _ornt
/_r { sflg {/_t {0 rmoveto}bdef /ron false def}
{ /_S /show load def /_t {0 rmoveto}bdef /ron false def}ifelse
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1200 11853 _m
(actual)_S 67 _t
(rendering.)_S 134 _t
(The)_S 67 _t
3073 11853 _m
/Times-ItalicR 600 _ff
(last_render_ticks)_S 4462 11853 _m
/Times-RomanR 600 _ff
67 _t
(variable)_S 67 _t
(is)_S 67 _t
(set;)_S 67 _t
(this)_S 67 _t
(is)_S 67 _t
(the)_S 67 _t
(value)_S 67 _t
(returned)_S 67 _t
(by)_S 1200 11620 _m
(vrl_SystemGetRenderTime\(\),)_S 67 _t
(and)_S 67 _t
(is)_S 67 _t
(also)_S 67 _t
(used)_S 67 _t
(to)_S 67 _t
(compute)_S 67 _t
(the)_S 67 _t
(frame)_S 67 _t
(rate)_S 67 _t
(returned)_S 67 _t
(by)_S 1200 11387 _m
(vrl_SystemGetFrameRate\(\).)_S 1800 10921 _m
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(vrl_ApplicationDrawOver\(\))_S 67 _t
(routine)_S 67 _t
(is)_S 67 _t
(then)_S 67 _t
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(to)_S 67 _t
(put)_S 67 _t
(any)_S 67 _t
(additional)_S 1200 10688 _m
(information)_S 67 _t
(on)_S 67 _t
(the)_S 67 _t
(display.)_S 134 _t
(The)_S 67 _t
(cursor)_S 67 _t
(is)_S 67 _t
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(vrl_DisplayUpdate\(\))_S 67 _t
(is)_S 67 _t
(called;)_S 67 _t
(this)_S 67 _t
(is)_S 1200 10455 _m
(necessary,)_S 67 _t
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(some)_S 67 _t
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(systems)_S 67 _t
(don't)_S 67 _t
(have)_S 67 _t
(multiple)_S 67 _t
(pages)_S 67 _t
(and)_S 67 _t
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(an)_S 67 _t
(off-)_S 1200 10222 _m
(screen)_S 67 _t
(buffer)_S 67 _t
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(vrl_DisplayUpdate\(\))_S 67 _t
(routine)_S 67 _t
(copies)_S 67 _t
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(the)_S 67 _t
(screen.)_S 134 _t
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(systems)_S 67 _t
(that)_S 1200 9989 _m
(have)_S 67 _t
(multiple-page)_S 67 _t
(displays,)_S 67 _t
(the)_S 67 _t
(current)_S 67 _t
(view)_S 67 _t
(page)_S 67 _t
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(\(now)_S 67 _t
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(page.)_S 67 _t
1200 9756 _m
(The)_S 67 _t
(mouse)_S 67 _t
(cursor)_S 67 _t
(is)_S 67 _t
(then)_S 67 _t
(revealed)_S 67 _t
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(the)_S 67 _t
(need_to_redraw)_S 67 _t
(variable)_S 67 _t
(\(which)_S 67 _t
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(by)_S 1200 9523 _m
(vrl_SystemRequestRefresh\(\)\))_S 67 _t
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(cleared.)_S 1800 9057 _m
(The)_S 67 _t
(final)_S 67 _t
(vrl_System)_S 67 _t
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(vrl_SystemCommandLine\(\).)_S 134 _t
(It)_S 67 _t
(just)_S 67 _t
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(the)_S 1200 8824 _m
(command-line)_S 67 _t
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(and)_S 67 _t
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(appropriate)_S 67 _t
(routines)_S 67 _t
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(read)_S 67 _t
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(files:)_S 1200 8412 _m
/CourierR 400 _ff
(void)_S 80 _t
(vrl_SystemCommandLine\(int)_S 80 _t
(argc,)_S 80 _t
(char)_S 80 _t
(*argv[]\))_S 1800 8279 _m
({)_S 1800 8146 _m
(int)_S 80 _t
(i;)_S 1800 8013 _m
(vrl_Camera)_S 80 _t
(*cam;)_S 1800 7880 _m
(for)_S 80 _t
(\(i)_S 80 _t
(=)_S 80 _t
(1;)_S 80 _t
(i)_S 80 _t
(<)_S 80 _t
(argc;)_S 80 _t
(++i\))_S 160 _t
(/*)_S 80 _t
(i)_S 80 _t
(=)_S 80 _t
(1)_S 80 _t
(to)_S 80 _t
(skip)_S 80 _t
(argv[0])_S 80 _t
(*/)_S 2400 7747 _m
({)_S 2400 7614 _m
(FILE)_S 80 _t
(*in)_S 80 _t
(=)_S 80 _t
(fopen\(argv[i],)_S 80 _t
("r"\);)_S 2400 7481 _m
(if)_S 80 _t
(\(in)_S 80 _t
(==)_S 80 _t
(NULL\))_S 80 _t
(continue;)_S 2400 7348 _m
(if)_S 80 _t
(\(strstr\(argv[i],)_S 80 _t
(".wld"\)\))_S 3000 7215 _m
(vrl_ReadWLD\(in\);)_S 2400 7082 _m
(else)_S 80 _t
(if)_S 80 _t
(\(strstr\(argv[i],)_S 80 _t
(".fig"\)\))_S 3000 6949 _m
(vrl_ReadFIG\(in,)_S 80 _t
(NULL,)_S 80 _t
(NULL\);)_S 2400 6816 _m
(else)_S 80 _t
(if)_S 80 _t
(\(strstr\(argv[i],)_S 80 _t
(".plg"\)\))_S 3000 6683 _m
(vrl_ReadObjectPLG\(in\);)_S 2400 6550 _m
(/*)_S 80 _t
(ignore)_S 80 _t
(anything)_S 80 _t
(else)_S 80 _t
(*/)_S 2400 6417 _m
(fclose\(in\);)_S 2400 6284 _m
(})_S 1800 6151 _m
(if)_S 80 _t
(\(!vrl_WorldGetCamera\(\)\))_S 240 _t
(/*)_S 80 _t
(need)_S 80 _t
(to)_S 80 _t
(have)_S 80 _t
(a)_S 80 _t
(camera)_S 80 _t
(*/)_S 2400 6018 _m
(vrl_CameraCreate\(\);)_S 1800 5885 _m
(vrl_WorldUpdate\(\);)_S 1800 5752 _m
(})_S /Times-RomanR 600 _ff
1200 5332 _m
(After)_S 67 _t
(all)_S 67 _t
(the)_S 67 _t
(files)_S 67 _t
(on)_S 67 _t
(the)_S 67 _t
(command)_S 67 _t
(line)_S 67 _t
(have)_S 67 _t
(been)_S 67 _t
(processed,)_S 67 _t
(the)_S 67 _t
(vrl_SystemCommandLine\(\))_S 1200 5099 _m
(routine)_S 67 _t
(checks)_S 67 _t
(to)_S 67 _t
(see)_S 67 _t
(if)_S 67 _t
(a)_S 67 _t
(current)_S 67 _t
(camera)_S 67 _t
(has)_S 67 _t
(been)_S 67 _t
(set.)_S 134 _t
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(not,)_S 67 _t
(a)_S 67 _t
(new)_S 67 _t
(camera)_S 67 _t
(is)_S 67 _t
(created.)_S 1200 4603 _m
/Times-BoldR 720 _ff
(Configuration)_S 80 _t
(Files)_S 3213 4603 _m
/Times-RomanR 600 _ff
1200 4127 _m
(AVRIL)_S 67 _t
(supports)_S 67 _t
(the)_S 67 _t
(loading)_S 67 _t
(of)_S 67 _t
(configuration)_S 67 _t
(files;)_S 67 _t
(the)_S 67 _t
(format)_S 67 _t
(of)_S 67 _t
(these)_S 67 _t
(files)_S 67 _t
(is)_S 67 _t
(given)_S 67 _t
(in)_S 1200 3894 _m
(Appendix)_S 67 _t
(B.)_S 134 _t
(The)_S 67 _t
(functions)_S 67 _t
(that)_S 67 _t
(support)_S 67 _t
(loading)_S 67 _t
(configuration)_S 67 _t
(information)_S 67 _t
(are)_S 1800 3482 _m
/CourierR 400 _ff
(int)_S 80 _t
(vrl_ReadCFG\(FILE)_S 80 _t
(*in\);)_S 1800 3349 _m
(int)_S 80 _t
(vrl_ReadCFGfile\(char)_S 80 _t
(*filename\);)_S /Times-RomanR 600 _ff
1200 2929 _m
(The)_S 67 _t
(vrl_ReadCFG\(\))_S 67 _t
(function)_S 67 _t
(reads)_S 67 _t
(a)_S 67 _t
(configuration)_S 67 _t
(file)_S 67 _t
(and)_S 67 _t
(stores)_S 67 _t
(the)_S 67 _t
(information)_S 67 _t
(from)_S 67 _t
(it)_S 67 _t
(in)_S 1200 2696 _m
(an)_S 67 _t
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(of)_S 67 _t
(data)_S 67 _t
(structures.)_S 134 _t
(Any)_S 67 _t
(devices)_S 67 _t
(specified)_S 67 _t
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(the)_S 67 _t
(file)_S 67 _t
(are)_S 67 _t
(opened,)_S 67 _t
(and)_S 67 _t
(the)_S 67 _t
(serial)_S 1200 2463 _m
(ports)_S 67 _t
(they)_S 67 _t
(use)_S 67 _t
(are)_S 67 _t
(opened)_S 67 _t
(as)_S 67 _t
(well.)_S 134 _t
(If)_S 67 _t
(a)_S 67 _t
(display)_S 67 _t
(driver)_S 67 _t
(is)_S 67 _t
(specified,)_S 67 _t
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(display)_S 67 _t
(is)_S 67 _t
(initialized)_S 1200 2230 _m
(using)_S 67 _t
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(vrl_ReadCFGfile\(\))_S 67 _t
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(of)_S 67 _t
(a)_S 1200 1997 _m
(file)_S 67 _t
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(file.)_S 134 _t
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(the)_S 8800 1255 _m
(21)_S _ep
_bp /Times-RomanR 600 _ff
0 13200 10200 _ornt
/_r { sflg {/_t {0 rmoveto}bdef /ron false def}
{ /_S /show load def /_t {0 rmoveto}bdef /ron false def}ifelse
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1200 11855 _m
(current)_S 67 _t
(loadpath)_S 67 _t
(\(unless)_S 67 _t
(the)_S 67 _t
(filename)_S 67 _t
(begins)_S 67 _t
(with)_S 67 _t
(a)_S 67 _t
(slash\).)_S 134 _t
(If)_S 67 _t
(the)_S 67 _t
(filename)_S 67 _t
(is)_S 67 _t
(NULL,)_S 67 _t
(then)_S 1200 11622 _m
("avril.cfg")_S 67 _t
(is)_S 67 _t
(used.)_S 1800 11156 _m
(There)_S 67 _t
(are)_S 67 _t
(routines)_S 67 _t
(for)_S 67 _t
(reading,)_S 67 _t
(setting)_S 67 _t
(and)_S 67 _t
(toggling)_S 67 _t
(the)_S 67 _t
(various)_S 67 _t
(flags)_S 67 _t
(that)_S 67 _t
(the)_S 67 _t
(user)_S 67 _t
(can)_S 1200 10923 _m
(specify)_S 67 _t
(in)_S 67 _t
(the)_S 67 _t
(configuration)_S 67 _t
(file:)_S 1800 10511 _m
/CourierR 400 _ff
(void)_S 80 _t
(vrl_ConfigSetCompassDisplay\(vrl_Boolean)_S 80 _t
(flag\);)_S 1800 10378 _m
(vrl_Boolean)_S 80 _t
(vrl_ConfigGetCompassDisplay\(void\);)_S 1800 10245 _m
(void)_S 80 _t
(vrl_ConfigToggleCompassDisplay\(void\);)_S 1800 10112 _m
(void)_S 80 _t
(vrl_ConfigSetPositionDisplay\(vrl_Boolean)_S 80 _t
(flag\);)_S 1800 9979 _m
(vrl_Boolean)_S 80 _t
(vrl_ConfigGetPositionDisplay\(void\);)_S 1800 9846 _m
(void)_S 80 _t
(vrl_ConfigTogglePositionDisplay\(void\);)_S 1800 9713 _m
(void)_S 80 _t
(vrl_ConfigSetFramerateDisplay\(vrl_Boolean)_S 80 _t
(flag\);)_S 1800 9580 _m
(vrl_Boolean)_S 80 _t
(vrl_ConfigGetFramerateDisplay\(void\);)_S 1800 9447 _m
(void)_S 80 _t
(vrl_ConfigToggleFramerateDisplay\(void\);)_S /Times-RomanR 600 _ff
1200 9027 _m
(If)_S 67 _t
(you)_S 67 _t
(wanted)_S 67 _t
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(let)_S 67 _t
(the)_S 67 _t
(user)_S 67 _t
(specify)_S 67 _t
(a)_S 67 _t
(configuration)_S 67 _t
(file)_S 67 _t
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(load)_S 67 _t
(by)_S 67 _t
(setting)_S 67 _t
(the)_S 67 _t
(AVRIL)_S 1200 8794 _m
(environment)_S 67 _t
(variable,)_S 67 _t
(you)_S 67 _t
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(make)_S 67 _t
(the)_S 67 _t
(following)_S 67 _t
(call:)_S 1800 8382 _m
/CourierR 400 _ff
(vrl_ReadCFGfile\(getenv\("AVRIL"\)\);)_S /Times-RomanR 600 _ff
1200 7962 _m
(If)_S 67 _t
(no)_S 67 _t
(AVRIL)_S 67 _t
(environment)_S 67 _t
(variable)_S 67 _t
(is)_S 67 _t
(found,)_S 67 _t
(getenv\(\))_S 67 _t
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/Times-RomanR 900 _ff
(Part)_S 100 _t
(II)_S 100 _t
(-)_S 100 _t
(Technical)_S 100 _t
(Reference)_S 4782 7190 _m
/Times-RomanR 600 _ff
1800 6697 _m
(This)_S 67 _t
(section)_S 67 _t
(describes)_S 67 _t
(AVRIL)_S 67 _t
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(a)_S 67 _t
(technical)_S 67 _t
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(data)_S 1200 6464 _m
(types)_S 67 _t
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(AVRIL.)_S 134 _t
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(macros,)_S 67 _t
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(change)_S 67 _t
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(particular)_S 67 _t
(routine)_S 67 _t
(is)_S 1200 5532 _m
(either)_S 67 _t
(a)_S 67 _t
(macro)_S 67 _t
(or)_S 67 _t
(a)_S 67 _t
(real)_S 67 _t
(function.)_S 1800 5066 _m
(There)_S 67 _t
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(a)_S 67 _t
(number)_S 67 _t
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(concepts)_S 67 _t
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(how)_S 67 _t
(AVRIL)_S 67 _t
(works.)_S 134 _t
(Let's)_S 67 _t
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(examining)_S 67 _t
(them.)_S 1200 4337 _m
/Times-BoldR 720 _ff
(Basic)_S 80 _t
(Data)_S 80 _t
(Types)_S 3013 4337 _m
/Times-RomanR 600 _ff
1800 3861 _m
(AVRIL)_S 67 _t
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(the)_S 1200 3628 _m
(Y)_S 67 _t
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(If)_S 67 _t
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(origin)_S 67 _t
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(the)_S 1200 3395 _m
(positive)_S 67 _t
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(rotation)_S 67 _t
(angle.)_S 1800 2929 _m
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(rotation)_S 67 _t
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(vrl_Angles.)_S 67 _t
1200 2696 _m
(AVRIL)_S 67 _t
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(the)_S 67 _t
(vrl_Scalar)_S 67 _t
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(vrl_Angle)_S 67 _t
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(portability.)_S 134 _t
(vrl_Scalars)_S 67 _t
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(\(long\))_S 67 _t
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(used.)_S 134 _t
(vrl_Angles)_S 67 _t
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(always)_S 67 _t
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(vrl_Angle)_S 67 _t
(format,)_S 67 _t
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(course\).)_S 134 _t
(A)_S 67 _t
(third)_S 8800 1255 _m
(22)_S _ep
_bp /Times-RomanR 600 _ff
0 13200 10200 _ornt
/_r { sflg {/_t {0 rmoveto}bdef /ron false def}
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1200 11855 _m
(fundamental)_S 67 _t
(data)_S 67 _t
(type)_S 67 _t
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(vrl_Factor,)_S 67 _t
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(trig)_S 1200 11622 _m
(functions;)_S 67 _t
(a)_S 67 _t
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(VRL_UNITY)_S 67 _t
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(#defined)_S 67 _t
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(a)_S 67 _t
(vrl_Factor)_S 67 _t
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(1.)_S 1800 11156 _m
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(a)_S 67 _t
(floating)_S 67 _t
(point)_S 67 _t
(implementation,)_S 67 _t
(all)_S 67 _t
(three)_S 67 _t
(types)_S 67 _t
(\(vrl_Scalars,)_S 67 _t
(vrl_Angles)_S 67 _t
(and)_S 1200 10923 _m
(vrl_Factors\))_S 67 _t
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(floats;)_S 67 _t
(in)_S 67 _t
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(fixed-point)_S 67 _t
(implementation,)_S 67 _t
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(all)_S 67 _t
(32-bit)_S 67 _t
(integers)_S 1200 10690 _m
(\(which)_S 67 _t
(will)_S 67 _t
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("long")_S 67 _t
(on)_S 67 _t
(many)_S 67 _t
(systems\).)_S 134 _t
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(macros)_S 67 _t
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(converting)_S 1200 10457 _m
(between)_S 67 _t
(floating)_S 67 _t
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(\(or)_S 67 _t
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(integers\))_S 67 _t
(and)_S 67 _t
(the)_S 67 _t
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(types:)_S 1800 10045 _m
/CourierR 400 _ff
(float2scalar\(float\);)_S 1800 9912 _m
(scalar2float\(vrl_Scalar\);)_S 1800 9646 _m
(float2angle\(float\);)_S 1800 9513 _m
(angle2float\(vrl_Angle\);)_S 1800 9247 _m
(float2factor\(float\);)_S 1800 9114 _m
(factor2float\(vrl_Factor\);)_S /Times-RomanR 600 _ff
1200 8694 _m
(Several)_S 67 _t
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(portable)_S 67 _t
(multiplication)_S 67 _t
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(types:)_S 1800 8282 _m
/CourierR 400 _ff
(vrl_Factor)_S 80 _t
(vrl_ScalarDivide\(vrl_Scalar)_S 80 _t
(a,)_S 80 _t
(vrl_Scalar)_S 80 _t
(b\);)_S 1800 8149 _m
(vrl_Scalar)_S 80 _t
(vrl_ScalarMultDiv\(vrl_Scalar)_S 80 _t
(a,)_S 80 _t
(vrl_Scalar)_S 80 _t
(b,)_S 80 _t
(vrl_Scalar)_S 80 _t
(c\);)_S 1800 8016 _m
(vrl_Scalar)_S 80 _t
(vrl_FactorMultiply\(vrl_Factor)_S 80 _t
(a,)_S 80 _t
(vrl_Scalar)_S 80 _t
(b\);)_S /Times-RomanR 600 _ff
1200 7596 _m
(The)_S 67 _t
(first)_S 67 _t
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(two)_S 67 _t
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(the)_S 1200 7361 _m
(absolute)_S 67 _t
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2667 7361 _m
/Times-ItalicR 600 _ff
(a)_S 2767 7361 _m
/Times-RomanR 600 _ff
67 _t
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6248 7361 _m
/Times-ItalicR 600 _ff
(b)_S 6348 7361 _m
/Times-RomanR 600 _ff
(.)_S 134 _t
(The)_S 67 _t
(second)_S 67 _t
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(multiplies)_S 1200 7128 _m
(two)_S 67 _t
(vrl_Scalars)_S 67 _t
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(a)_S 67 _t
(third,)_S 67 _t
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(a)_S 67 _t
(64-bit)_S 67 _t
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(it)_S 1200 6893 _m
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2034 6893 _m
/Times-ItalicR 600 _ff
(\(a*b\)/c)_S 2611 6893 _m
/Times-RomanR 600 _ff
(.)_S 134 _t
(The)_S 67 _t
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(vrl_Factor)_S 67 _t
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(a)_S 67 _t
(vrl_Scalar)_S 67 _t
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(a)_S 1200 6660 _m
(vrl_Scalar)_S 67 _t
(result;)_S 67 _t
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(also)_S 67 _t
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(an)_S 67 _t
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(long)_S 1200 6427 _m
(value)_S 67 _t
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(a)_S 67 _t
(vrl_Factor.)_S 134 _t
(The)_S 67 _t
(order)_S 67 _t
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(operands)_S 67 _t
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(C)_S 67 _t
(automatically)_S 1200 6194 _m
(promotes)_S 67 _t
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(longs.)_S 1800 5728 _m
(On)_S 67 _t
(floating-point)_S 67 _t
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(may)_S 67 _t
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(occasions)_S 67 _t
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(the)_S 67 _t
(computed)_S 67 _t
(value)_S 1200 5495 _m
(of)_S 67 _t
(a)_S 67 _t
(vrl_Scalar)_S 67 _t
(has)_S 67 _t
(a)_S 67 _t
(fractional)_S 67 _t
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(cases)_S 67 _t
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(the)_S 67 _t
(following)_S 67 _t
(function:)_S 1800 5029 _m
/CourierR 400 _ff
(vrl_Scalar)_S 80 _t
(vrl_ScalarRound\(vrl_Scalar)_S 80 _t
(value\))_S 5320 5029 _m
/Times-RomanR 600 _ff
(;)_S 1200 4563 _m
(to)_S 67 _t
(round)_S 67 _t
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(the)_S 67 _t
(nearest)_S 67 _t
(valid)_S 67 _t
(vrl_Scalar)_S 67 _t
(value.)_S 1800 4097 _m
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(two)_S 67 _t
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(routines,)_S 67 _t
(vrl_Sine\(\))_S 67 _t
(and)_S 67 _t
(vrl_Cosine\(\);)_S 67 _t
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(take)_S 1200 3864 _m
(vrl_Angles)_S 67 _t
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(return)_S 67 _t
(vrl_Factors:)_S 1800 3452 _m
/CourierR 400 _ff
(vrl_Factor)_S 80 _t
(vrl_Sine\(vrl_Angle)_S 80 _t
(angle\);)_S 1800 3265 _m
(vrl_Factor)_S 80 _t
(vrl_Cosine\(vrl_Angle)_S 80 _t
(angle\))_S 4840 3265 _m
/Times-RomanR 600 _ff
(;)_S 1200 2799 _m
(The)_S 67 _t
(routine)_S 67 _t
(vrl_MathInit\(\))_S 67 _t
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(called)_S 67 _t
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(the)_S 67 _t
(trig)_S 67 _t
(functions;)_S 67 _t
(it)_S 67 _t
(pre-)_S 1200 2566 _m
(computes)_S 67 _t
(the)_S 67 _t
(trig)_S 67 _t
(tables.)_S 134 _t
(This)_S 67 _t
(is)_S 67 _t
(done)_S 67 _t
(in)_S 67 _t
(the)_S 67 _t
(vrl_SystemStartup\(\))_S 67 _t
(routine)_S 67 _t
(\(found)_S 67 _t
(in)_S 67 _t
(system.c\).)_S 1800 2100 _m
(There)_S 67 _t
(are)_S 67 _t
(several)_S 67 _t
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(basic)_S 67 _t
(types)_S 67 _t
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(AVRIL:)_S 67 _t
(vrl_Time)_S 67 _t
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(a)_S 67 _t
(measure)_S 67 _t
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(elapsed)_S 1200 1867 _m
(time)_S 67 _t
(in)_S 67 _t
(ticks,)_S 67 _t
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(vrl_Boolean)_S 67 _t
(is)_S 67 _t
(a)_S 67 _t
(true/false)_S 67 _t
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(value)_S 67 _t
(\(non-zero)_S 67 _t
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(true\).)_S 134 _t
(The)_S 67 _t
(types)_S 8800 1255 _m
(23)_S _ep
_bp /Times-RomanR 600 _ff
0 13200 10200 _ornt
/_r { sflg {/_t {0 rmoveto}bdef /ron false def}
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1200 11855 _m
(vrl_32bit)_S 67 _t
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(vrl_unsigned32bit)_S 67 _t
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(for)_S 67 _t
(signed)_S 67 _t
(and)_S 67 _t
(unsigned)_S 67 _t
(32-bit)_S 67 _t
(numbers,)_S 67 _t
(and)_S 1200 11622 _m
(vrl_16bit)_S 67 _t
(and)_S 67 _t
(vrl_unsigned16bit)_S 67 _t
(are)_S 67 _t
(used)_S 67 _t
(for)_S 67 _t
(signed)_S 67 _t
(and)_S 67 _t
(unsigned)_S 67 _t
(16-bit)_S 67 _t
(numbers.)_S 1200 11126 _m

/Times-BoldR 720 _ff
(Vectors)_S 1986 11126 _m
/Times-RomanR 600 _ff
1800 10650 _m
(A)_S 67 _t
(vrl_Vector)_S 67 _t
(is)_S 67 _t
(a)_S 67 _t
(three-element)_S 67 _t
(array,)_S 67 _t
(which)_S 67 _t
(can)_S 67 _t
(be)_S 67 _t
(indexed)_S 67 _t
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(the)_S 67 _t
(#defined)_S 67 _t
(constants)_S 1200 10415 _m
(X,)_S 67 _t
(Y)_S 67 _t
(and)_S 67 _t
(Z;)_S 67 _t
(for)_S 67 _t
(example,)_S 67 _t
(if)_S 67 _t
3557 10415 _m
/Times-ItalicR 600 _ff
(v)_S 3646 10415 _m
/Times-RomanR 600 _ff
67 _t
(is)_S 67 _t
(a)_S 67 _t
(vector)_S 67 _t
(then)_S 67 _t
5048 10415 _m
/Times-ItalicR 600 _ff
(v)_S 5136 10415 _m
/Times-RomanR 600 _ff
([X])_S 67 _t
(is)_S 67 _t
(the)_S 67 _t
(X-component)_S 67 _t
(of)_S 67 _t
(the)_S 67 _t
(vector.)_S 134 _t
(In)_S 1200 10182 _m
(general,)_S 67 _t
(vrl_Vectors)_S 67 _t
(are)_S 67 _t
(made)_S 67 _t
(up)_S 67 _t
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(three)_S 67 _t
(vrl_Scalars;)_S 67 _t
(however,)_S 67 _t
(a)_S 67 _t
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(vector)_S 67 _t
(\(such)_S 67 _t
(as)_S 1200 9949 _m
(a)_S 67 _t
(facet)_S 67 _t
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(vector,)_S 67 _t
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(a)_S 67 _t
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(that's)_S 67 _t
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(the)_S 1200 9716 _m
(vrl_VectorNormalize\(\))_S 67 _t
(function\))_S 67 _t
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(have)_S 67 _t
(vrl_Factors)_S 67 _t
(as)_S 67 _t
(elements.)_S 134 _t
(The)_S 67 _t
(following)_S 1200 9483 _m
(functions)_S 67 _t
(perform)_S 67 _t
(fundamental)_S 67 _t
(operations)_S 67 _t
(on)_S 67 _t
(vrl_Vectors:)_S 1800 9071 _m
/CourierR 400 _ff
(void)_S 80 _t
(vrl_VectorCreate\(vrl_Vector)_S 80 _t
(result,)_S 80 _t
(vrl_Scalar)_S 80 _t
(x,)_S 80 _t
(vrl_Scalar)_S 80 _t
(y,)_S 80 _t
(vrl_Scalar)_S 80 _t
(z\);)_S 1800 8938 _m
(void)_S 80 _t
(vrl_VectorCopy\(vrl_Vector)_S 80 _t
(destination,)_S 80 _t
(vrl_Vector)_S 80 _t
(source\);)_S 1800 8805 _m
(void)_S 80 _t
(vrl_VectorAdd\(vrl_Vector)_S 80 _t
(result,)_S 80 _t
(vrl_Vector)_S 80 _t
(v1,)_S 80 _t
(vrl_Vector)_S 80 _t
(v2\);)_S 1800 8672 _m
(void)_S 80 _t
(vrl_VectorSub\(vrl_Vector)_S 80 _t
(result,)_S 80 _t
(vrl_Vector)_S 80 _t
(v1,)_S 80 _t
(vrl_Vector)_S 80 _t
(v2\);)_S 1800 8539 _m
(void)_S 80 _t
(vrl_VectorNegate\(vrl_Vector)_S 80 _t
(v\);)_S 1800 8406 _m
(vrl_Factor)_S 80 _t
(vrl_VectorDotproduct\(vrl_Vector)_S 80 _t
(v1,)_S 80 _t
(vrl_Vector)_S 80 _t
(v2\);)_S 1800 8273 _m
(vrl_Scalar)_S 80 _t
(vrl_VectorCrossproduct\(vrl_Vector)_S 80 _t
(result,)_S 80 _t
(vrl_Vector)_S 80 _t
(v1,)_S 80 _t
(vrl_Vector)_S 80 _t
(v2\);)_S 1800 8140 _m
(vrl_Scalar)_S 80 _t
(vrl_VectorMagnitude\(vrl_Vector)_S 80 _t
(v\);)_S 1800 8007 _m
(void)_S 80 _t
(vrl_VectorNormalize\(vrl_Vector)_S 80 _t
(v\);)_S 1800 7874 _m
(vrl_Scalar)_S 80 _t
(vrl_VectorDistance\(vrl_Vector)_S 80 _t
(v1,)_S 80 _t
(vrl_Vector)_S 80 _t
(v2\);)_S 1800 7741 _m
(void)_S 80 _t
(vrl_VectorScale\(vrl_Vector)_S 80 _t
(v,)_S 80 _t
(vrl_Scalar)_S 80 _t
(newmag\);)_S 1800 7608 _m
(void)_S 80 _t
(vrl_VectorRescale\(vrl_Vector)_S 80 _t
(v,)_S 80 _t
(vrl_Scalar)_S 80 _t
(newmag\);)_S 1800 7475 _m
(void)_S 80 _t
(vrl_VectorPrint\(FILE)_S 80 _t
(*out,)_S 80 _t
(char)_S 80 _t
(*str,)_S 80 _t
(vrl_Vector)_S 80 _t
(v\);)_S 1800 7342 _m
(vrl_Boolean)_S 80 _t
(vrl_VectorEqual\(vrl_Vector)_S 80 _t
(v1,)_S 80 _t
(vrl_Vector)_S 80 _t
(v2\);)_S 1800 7209 _m
(void)_S 80 _t
(vrl_VectorZero\(vrl_Vector)_S 80 _t
(v\);)_S 1200 6889 _m
/Times-RomanR 600 _ff
(The)_S 67 _t
(vrl_VectorCreate\(\))_S 67 _t
(function)_S 67 _t
(takes)_S 67 _t
(three)_S 67 _t
(vrl_Scalars)_S 67 _t
(and)_S 67 _t
(assembles)_S 67 _t
(them)_S 67 _t
(into)_S 67 _t
(a)_S 67 _t
(vrl_Vector.)_S 67 _t
1200 6656 _m
(The)_S 67 _t
(vrl_VectorCopy\(\),)_S 67 _t
(vrl_VectorAdd\(\))_S 67 _t
(and)_S 67 _t
(vrl_VectorSub\(\))_S 67 _t
(routines)_S 67 _t
(do)_S 67 _t
(element-by-element)_S 1200 6423 _m
(copies,)_S 67 _t
(additions)_S 67 _t
(and)_S 67 _t
(subtractions)_S 67 _t
(of)_S 67 _t
(vrl_Vectors.)_S 134 _t
(The)_S 67 _t
(vrl_VectorNegate\(\))_S 67 _t
(function)_S 67 _t
(reverses)_S 1200 6190 _m
(the)_S 67 _t
(direction)_S 67 _t
(of)_S 67 _t
(a)_S 67 _t
(vrl_Vector)_S 67 _t
(by)_S 67 _t
(flipping)_S 67 _t
(the)_S 67 _t
(sign)_S 67 _t
(of)_S 67 _t
(each)_S 67 _t
(of)_S 67 _t
(its)_S 67 _t
(components.)_S 134 _t
(The)_S 1200 5957 _m
(vrl_VectorDotproduct\(\))_S 67 _t
(routine)_S 67 _t
(computes)_S 67 _t
(the)_S 67 _t
(dot)_S 67 _t
(product)_S 67 _t
(\(inner)_S 67 _t
(product\))_S 67 _t
(of)_S 67 _t
(two)_S 67 _t
(vectors;)_S 67 _t
(at)_S 1200 5724 _m
(least)_S 67 _t
(one)_S 67 _t
(of)_S 67 _t
(the)_S 67 _t
(vectors)_S 67 _t
(should)_S 67 _t
(be)_S 67 _t
(normalized)_S 67 _t
(for)_S 67 _t
(this)_S 67 _t
(to)_S 67 _t
(work)_S 67 _t
(properly.)_S 1800 5258 _m
(The)_S 67 _t
(vrl_VectorCrossproduct\(\))_S 67 _t
(routine)_S 67 _t
(computes)_S 67 _t
(the)_S 67 _t
(vector)_S 67 _t
(cross)_S 67 _t
(product)_S 67 _t
(\(outer)_S 1200 5025 _m
(product\))_S 67 _t
(of)_S 67 _t
(two)_S 67 _t
(vectors.)_S 134 _t
(This)_S 67 _t
(is)_S 67 _t
(likely)_S 67 _t
(to)_S 67 _t
(be)_S 67 _t
(slow,)_S 67 _t
(since)_S 67 _t
(it)_S 67 _t
(normalizes)_S 67 _t
(the)_S 67 _t
(result)_S 67 _t
(\(which)_S 1200 4792 _m
(involves)_S 67 _t
(doing)_S 67 _t
(a)_S 67 _t
(square)_S 67 _t
(root)_S 67 _t
(operation\).)_S 134 _t
(It)_S 67 _t
(returns)_S 67 _t
(the)_S 67 _t
(magnitude)_S 67 _t
(of)_S 67 _t
(the)_S 67 _t
(vector)_S 67 _t
(prior)_S 67 _t
(to)_S 1200 4559 _m
(normalization.)_S 134 _t
(The)_S 67 _t
(vrl_Magnitude\(\))_S 67 _t
(routine)_S 67 _t
(returns)_S 67 _t
(the)_S 67 _t
(magnitude)_S 67 _t
(of)_S 67 _t
(a)_S 67 _t
(vector,)_S 67 _t
(and)_S 67 _t
(the)_S 1200 4326 _m
(vrl_VectorNormalize\(\))_S 67 _t
(routine)_S 67 _t
(scales)_S 67 _t
(a)_S 67 _t
(vector)_S 67 _t
(so)_S 67 _t
(that)_S 67 _t
(it)_S 67 _t
(has)_S 67 _t
(a)_S 67 _t
(magnitude)_S 67 _t
(of)_S 67 _t
(1.)_S 1800 3860 _m
(The)_S 67 _t
(vrl_VectorDistance\(\))_S 67 _t
(takes)_S 67 _t
(two)_S 67 _t
(vrl_Vectors)_S 67 _t
(\(each)_S 67 _t
(representing)_S 67 _t
(a)_S 67 _t
(point)_S 67 _t
(in)_S 67 _t
(space\))_S 1200 3627 _m
(and)_S 67 _t
(computes)_S 67 _t
(the)_S 67 _t
(distance)_S 67 _t
(between)_S 67 _t
(those)_S 67 _t
(two)_S 67 _t
(points.)_S 134 _t
(The)_S 67 _t
(vrl_Scale\(\))_S 67 _t
(function)_S 67 _t
(takes)_S 67 _t
(a)_S 1200 3394 _m
(normalized)_S 67 _t
(vrl_Vector)_S 67 _t
(and)_S 67 _t
(scales)_S 67 _t
(all)_S 67 _t
(its)_S 67 _t
(components)_S 67 _t
(by)_S 67 _t
(the)_S 67 _t
(given)_S 67 _t
(amount;)_S 67 _t
(the)_S 67 _t
(vrl_Rescale\(\))_S 1200 3161 _m
(function)_S 67 _t
(takes)_S 67 _t
(a)_S 67 _t
(non-normalized)_S 67 _t
(vector)_S 67 _t
(and)_S 67 _t
(re-scales)_S 67 _t
(it)_S 67 _t
(to)_S 67 _t
(have)_S 67 _t
(the)_S 67 _t
(specified)_S 67 _t
(magnitude.)_S 1800 2695 _m
(The)_S 67 _t
(vrl_VectorPrint\(\))_S 67 _t
(routine)_S 67 _t
(prints)_S 67 _t
(out)_S 67 _t
(a)_S 67 _t
(message)_S 67 _t
(followed)_S 67 _t
(by)_S 67 _t
(the)_S 67 _t
(values)_S 67 _t
(of)_S 67 _t
(each)_S 67 _t
(of)_S 1200 2462 _m
(the)_S 67 _t
(components)_S 67 _t
(of)_S 67 _t
(the)_S 67 _t
(vrl_Vector,)_S 67 _t
(enclosed)_S 67 _t
(in)_S 67 _t
(square)_S 67 _t
(brackets.)_S 134 _t
(Do)_S 67 _t
(not)_S 67 _t
(attempt)_S 67 _t
(to)_S 67 _t
(write)_S 67 _t
(to)_S 67 _t
(the)_S 1200 2229 _m
(screen)_S 67 _t
(with)_S 67 _t
(this)_S 67 _t
(routine,)_S 67 _t
(since)_S 67 _t
(it)_S 67 _t
(will)_S 67 _t
(not)_S 67 _t
(work)_S 67 _t
(well)_S 67 _t
(in)_S 67 _t
(graphics)_S 67 _t
(mode.)_S 8800 1255 _m
(24)_S _ep
_bp /Times-RomanR 600 _ff
0 13200 10200 _ornt
/_r { sflg {/_t {0 rmoveto}bdef /ron false def}
{ /_S /show load def /_t {0 rmoveto}bdef /ron false def}ifelse
}bdef
1800 11855 _m
(The)_S 67 _t
(vrl_VectorEqual\(\))_S 67 _t
(routine)_S 67 _t
(returns)_S 67 _t
(a)_S 67 _t
(non-zero)_S 67 _t
(value)_S 67 _t
(if)_S 67 _t
(the)_S 67 _t
(two)_S 67 _t
(vrl_Vectors)_S 67 _t
(are)_S 1200 11622 _m
(identical;)_S 67 _t
(vrl_VectorZero\(\))_S 67 _t
(sets)_S 67 _t
(the)_S 67 _t
(components)_S 67 _t
(of)_S 67 _t
(a)_S 67 _t
(vrl_Vector)_S 67 _t
(to)_S 67 _t
(zero.)_S 134 _t
(The)_S 67 _t
([0,0,0])_S 67 _t
(vector)_S 67 _t
(is)_S 1200 11389 _m
(sometimes)_S 67 _t
(needed,)_S 67 _t
(so)_S 67 _t
(a)_S 67 _t
(global)_S 67 _t
(vrl_Vector)_S 67 _t
(variable)_S 67 _t
(called)_S 67 _t
(vrl_VectorNULL)_S 67 _t
(is)_S 67 _t
(defined.)_S 1200 10893 _m
/Times-BoldR 720 _ff
(Matrices)_S 2106 10893 _m
/Times-RomanR 600 _ff
1800 10417 _m
(A)_S 67 _t
(vrl_Matrix)_S 67 _t
(is)_S 67 _t
(a)_S 67 _t
(4)_S 67 _t
(by)_S 67 _t
(3)_S 67 _t
(array)_S 67 _t
(that)_S 67 _t
(stores)_S 67 _t
(location)_S 67 _t
(and)_S 67 _t
(orientation)_S 67 _t
(information.)_S 134 _t
(All)_S 1200 10184 _m
(AVRIL)_S 67 _t
(matrices)_S 67 _t
(are)_S 67 _t
(homogenous;)_S 67 _t
(the)_S 67 _t
(upper)_S 67 _t
(3)_S 67 _t
(by)_S 67 _t
(3)_S 67 _t
(submatrix)_S 67 _t
(stores)_S 67 _t
(rotation)_S 67 _t
(information)_S 67 _t
(and)_S 1200 9951 _m
(the)_S 67 _t
(last)_S 67 _t
(3-element)_S 67 _t
(row)_S 67 _t
(stores)_S 67 _t
(a)_S 67 _t
(translation)_S 67 _t
(vector.)_S 134 _t
(You)_S 67 _t
(should)_S 67 _t
(never)_S 67 _t
(have)_S 67 _t
(to)_S 67 _t
(deal)_S 67 _t
(with)_S 67 _t
(the)_S 1200 9718 _m
(vrl_Matrix)_S 67 _t
(type)_S 67 _t
(directly.)_S 134 _t
(However,)_S 67 _t
(in)_S 67 _t
(case)_S 67 _t
(you)_S 67 _t
(do)_S 67 _t
(have)_S 67 _t
(a)_S 67 _t
(need)_S 67 _t
(to)_S 67 _t
(deal)_S 67 _t
(with)_S 67 _t
(actual)_S 67 _t
(matrices,)_S 1200 9485 _m
(the)_S 67 _t
(following)_S 67 _t
(routines)_S 67 _t
(are)_S 67 _t
(provided:)_S 1800 9073 _m
/CourierR 400 _ff
(void)_S 80 _t
(vrl_MatrixIdentity\(vrl_Matrix)_S 80 _t
(m\);)_S 1800 8940 _m
(void)_S 80 _t
(vrl_MatrixCopy\(vrl_Matrix)_S 80 _t
(result,)_S 80 _t
(vrl_Matrix)_S 80 _t
(m\);)_S 1800 8807 _m
(void)_S 80 _t
(vrl_MatrixMultiply\(vrl_Matrix)_S 80 _t
(result,)_S 80 _t
(vrl_Matrix)_S 80 _t
(m1,)_S 80 _t
(vrl_Matrix)_S 80 _t
(m2\);)_S 1800 8674 _m
(void)_S 80 _t
(vrl_MatrixInverse\(vrl_Matrix)_S 80 _t
(result,)_S 80 _t
(vrl_Matrix)_S 80 _t
(m\);)_S 1800 8541 _m
(void)_S 80 _t
(vrl_MatrixRotX\(vrl_Matrix)_S 80 _t
(m,)_S 80 _t
(vrl_Angle)_S 80 _t
(angle,)_S 80 _t
(vrl_Boolean)_S 80 _t
(leftside\);)_S 1800 8408 _m
(void)_S 80 _t
(vrl_MatrixRotY\(vrl_Matrix)_S 80 _t
(m,)_S 80 _t
(vrl_Angle)_S 80 _t
(angle,)_S 80 _t
(vrl_Boolean)_S 80 _t
(leftside\);)_S 1800 8275 _m
(void)_S 80 _t
(vrl_MatrixRotZ\(vrl_Matrix)_S 80 _t
(m,)_S 80 _t
(vrl_Angle)_S 80 _t
(angle,)_S 80 _t
(vrl_Boolean)_S 80 _t
(leftside\);)_S 1800 8142 _m
(void)_S 80 _t
(vrl_MatrixRotVector\(vrl_Matrix)_S 80 _t
(m,)_S 80 _t
(vrl_Angle)_S 80 _t
(angle,)_S 80 _t
(vrl_Vector)_S 80 _t
(vector,)_S 2400 8009 _m
(vrl_Boolean)_S 80 _t
(leftside\);)_S 1800 7876 _m
(void)_S 80 _t
(vrl_MatrixResetRotations\(vrl_Matrix)_S 80 _t
(m\);)_S 1800 7743 _m
(void)_S 80 _t
(vrl_MatrixGetBasis\(vrl_Vector)_S 80 _t
(v,)_S 80 _t
(vrl_Matrix)_S 80 _t
(m,)_S 80 _t
(int)_S 80 _t
(axis\);)_S 1800 7610 _m
(void)_S 80 _t
(vrl_MatrixTranslate\(vrl_Matrix)_S 80 _t
(result,)_S 80 _t
(vrl_Scalar)_S 80 _t
(x,)_S 80 _t
(vrl_Scalar)_S 80 _t
(y,)_S 80 _t
(vrl_Scalar)_S 80 _t
(z\);)_S 1800 7477 _m
(void)_S 80 _t
(vrl_MatrixSetTranslation\(vrl_Matrix)_S 80 _t
(result,)_S 2400 7344 _m
(vrl_Scalar)_S 80 _t
(x,)_S 80 _t
(vrl_Scalar)_S 80 _t
(y,)_S 80 _t
(vrl_Scalar)_S 80 _t
(z\);)_S 1800 7211 _m
(void)_S 80 _t
(vrl_MatrixGetTranslation\(vrl_Vector)_S 80 _t
(v,)_S 80 _t
(vrl_Matrix)_S 80 _t
(m\);)_S /Times-RomanR 600 _ff
1200 6791 _m
(The)_S 67 _t
(vrl_MatrixIdentity\(\))_S 67 _t
(function)_S 67 _t
(sets)_S 67 _t
(the)_S 67 _t
(matrix)_S 67 _t
(to)_S 67 _t
(zeroes,)_S 67 _t
(except)_S 67 _t
(for)_S 67 _t
(the)_S 67 _t
(diagonal)_S 67 _t
(elements)_S 1200 6558 _m
(which)_S 67 _t
(are)_S 67 _t
(set)_S 67 _t
(to)_S 67 _t
(VRL_UNITY.)_S 134 _t
(The)_S 67 _t
(vrl_MatrixCopy\(\))_S 67 _t
(and)_S 67 _t
(vrl_MatrixMultiply\(\))_S 67 _t
(routines)_S 67 _t
(are)_S 1200 6325 _m
(used)_S 67 _t
(to)_S 67 _t
(copy)_S 67 _t
(and)_S 67 _t
(multiply)_S 67 _t
(matrices,)_S 67 _t
(and)_S 67 _t
(the)_S 67 _t
(vrl_MatrixInverse\(\))_S 67 _t
(routine)_S 67 _t
(computes)_S 67 _t
(the)_S 67 _t
(matrix)_S 1200 6092 _m
(inverse.)_S 134 _t
(The)_S 67 _t
(various)_S 67 _t
(rotation)_S 67 _t
(functions)_S 67 _t
(apply)_S 67 _t
(a)_S 67 _t
(rotation)_S 67 _t
(around)_S 67 _t
(X,)_S 67 _t
(Y,)_S 67 _t
(Z)_S 67 _t
(or)_S 67 _t
(a)_S 67 _t
(specified)_S 67 _t
(vector)_S 1200 5859 _m
(by)_S 67 _t
(a)_S 67 _t
(given)_S 67 _t
(angle;)_S 67 _t
(the)_S 67 _t
(vrl_MatrixResetRotations\(\))_S 67 _t
(routine)_S 67 _t
(sets)_S 67 _t
(all)_S 67 _t
(the)_S 67 _t
(rotations)_S 67 _t
(to)_S 67 _t
(zero.)_S 134 _t
(Several)_S 1200 5624 _m
(of)_S 67 _t
(the)_S 67 _t
(vrl_Matrix)_S 67 _t
(routines)_S 67 _t
(use)_S 67 _t
(a)_S 67 _t
3879 5624 _m
/Times-ItalicR 600 _ff
(leftside)_S 4457 5624 _m
/Times-RomanR 600 _ff
67 _t
(parameter;)_S 67 _t
(if)_S 67 _t
(non-zero,)_S 67 _t
(this)_S 67 _t
(parameter)_S 67 _t
(specifies)_S 67 _t
(that)_S 1200 5391 _m
(the)_S 67 _t
(transformation)_S 67 _t
(should)_S 67 _t
(be)_S 67 _t
(applied)_S 67 _t
(as)_S 67 _t
(a)_S 67 _t
(pre-multiplication)_S 67 _t
(instead)_S 67 _t
(of)_S 67 _t
(a)_S 67 _t
(post-multiplication.)_S 1800 4925 _m
(The)_S 67 _t
(function)_S 67 _t
(vrl_MatrixGetBasis\(\))_S 67 _t
(gets)_S 67 _t
(one)_S 67 _t
(of)_S 67 _t
(the)_S 67 _t
(basis)_S 67 _t
(vectors)_S 67 _t
(of)_S 67 _t
(the)_S 67 _t
(rotation)_S 67 _t
(part)_S 67 _t
(of)_S 1200 4692 _m
(the)_S 67 _t
(matrix;)_S 67 _t
(this)_S 67 _t
(is)_S 67 _t
(equivalent)_S 67 _t
(to)_S 67 _t
(\(but)_S 67 _t
(faster)_S 67 _t
(than\))_S 67 _t
(transforming)_S 67 _t
(an)_S 67 _t
(axis-aligned)_S 67 _t
(unit)_S 67 _t
(vector)_S 67 _t
(by)_S 1200 4459 _m
(the)_S 67 _t
(matrix.)_S 134 _t
(In)_S 67 _t
(other)_S 67 _t

(words,)_S 67 _t
(vrl_MatrixGetBasis\(v,)_S 67 _t
(m,)_S 67 _t
(X\))_S 67 _t
(is)_S 67 _t
(equivalent)_S 67 _t
(to)_S 67 _t
(transforming)_S 67 _t
(the)_S 1200 4224 _m
(vector)_S 67 _t
([1,0,0])_S 67 _t
(by)_S 67 _t
(the)_S 67 _t
(rotation)_S 67 _t
(part)_S 67 _t
(of)_S 67 _t
(the)_S 67 _t
(matrix)_S 67 _t
(and)_S 67 _t
(storing)_S 67 _t
(the)_S 67 _t
(result)_S 67 _t
(in)_S 67 _t
(the)_S 67 _t
(vector)_S 67 _t
8049 4224 _m
/Times-ItalicR 600 _ff
(v)_S 8138 4224 _m
/Times-RomanR 600 _ff
(.)_S 1800 3758 _m
(The)_S 67 _t
(vrl_MatrixTranslate\(\))_S 67 _t
(routine)_S 67 _t
(applies)_S 67 _t
(a)_S 67 _t
(translation)_S 67 _t
(to)_S 67 _t
(the)_S 67 _t
(matrix,)_S 67 _t
(and)_S 1200 3525 _m
(vrl_MatrixSetTranslation\(\))_S 67 _t
(sets)_S 67 _t
(the)_S 67 _t
(actual)_S 67 _t
(translation)_S 67 _t
(part)_S 67 _t
(of)_S 67 _t
(the)_S 67 _t
(matrix.)_S 134 _t
(The)_S 1200 3292 _m
(vrl_MatrixGetTranslation\(\))_S 67 _t
(routine)_S 67 _t
(fills)_S 67 _t
(the)_S 67 _t
(given)_S 67 _t
(vector)_S 67 _t
(with)_S 67 _t
(the)_S 67 _t
(current)_S 67 _t
(translation)_S 67 _t
(part)_S 67 _t
(of)_S 1200 3059 _m
(the)_S 67 _t
(matrix.)_S 8800 1255 _m
(25)_S _ep
_bp /Times-RomanR 600 _ff
0 13200 10200 _ornt
/_r { sflg {/_t {0 rmoveto}bdef /ron false def}
{ /_S /show load def /_t {0 rmoveto}bdef /ron false def}ifelse
}bdef
1200 11825 _m
/Times-BoldR 720 _ff
(Transforms)_S 2413 11825 _m
/Times-RomanR 600 _ff
1800 11349 _m
(You)_S 67 _t
(should)_S 67 _t
(never)_S 67 _t
(have)_S 67 _t
(to)_S 67 _t
(use)_S 67 _t
(any)_S 67 _t
(of)_S 67 _t
(the)_S 67 _t
(transform)_S 67 _t
(functions)_S 67 _t
(directly;)_S 67 _t
(this)_S 67 _t
(is)_S 67 _t
(all)_S 1200 11116 _m
(handled)_S 67 _t
(for)_S 67 _t
(you)_S 67 _t
(by)_S 67 _t
(AVRIL.)_S 134 _t
(A)_S 67 _t
(vector)_S 67 _t
(can)_S 67 _t
(be)_S 67 _t
(transformed)_S 67 _t
(by)_S 67 _t
(a)_S 67 _t
(matrix,)_S 67 _t
(or)_S 67 _t
(each)_S 67 _t
(component)_S 67 _t
(of)_S 1200 10883 _m
(the)_S 67 _t
(transform)_S 67 _t
(\(X,)_S 67 _t
(Y)_S 67 _t
(or)_S 67 _t
(Z\))_S 67 _t
(can)_S 67 _t
(be)_S 67 _t
(computed)_S 67 _t
(separately:)_S 1800 10471 _m
/CourierR 400 _ff
(void)_S 80 _t
(vrl_Transform\(vrl_Vector)_S 80 _t
(result,)_S 80 _t
(vrl_Matrix)_S 80 _t
(m,)_S 80 _t
(vrl_Vector)_S 80 _t
(v\);)_S 1800 10338 _m
(vrl_Scalar)_S 80 _t
(vrl_TransformX\(vrl_Matrix)_S 80 _t
(m,)_S 80 _t
(vrl_Vector)_S 80 _t
(v\);)_S 1800 10205 _m
(vrl_Scalar)_S 80 _t
(vrl_TransformY\(vrl_Matrix)_S 80 _t
(m,)_S 80 _t
(vrl_Vector)_S 80 _t
(v\);)_S 1800 10072 _m
(vrl_Scalar)_S 80 _t
(vrl_TransformZ\(vrl_Matrix)_S 80 _t
(m,)_S 80 _t
(vrl_Vector)_S 80 _t
(v\);)_S /Times-RomanR 600 _ff
1200 9622 _m
/Times-BoldR 720 _ff
(Coordinate)_S 80 _t
(Systems)_S 3267 9622 _m
/Times-RomanR 600 _ff
1800 9146 _m
(AVRIL)_S 67 _t
(allows)_S 67 _t
(objects)_S 67 _t
(to)_S 67 _t
(be)_S 67 _t
(translated)_S 67 _t
(or)_S 67 _t
(rotated)_S 67 _t
(in)_S 67 _t
(five)_S 67 _t
(different)_S 67 _t
(coordinate)_S 67 _t
(systems.)_S 67 _t
1200 8913 _m
(This)_S 67 _t
(may)_S 67 _t
(seem)_S 67 _t
(like)_S 67 _t
(a)_S 67 _t
(lot,)_S 67 _t
(but)_S 67 _t
(they're)_S 67 _t
(easy)_S 67 _t
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(train.)_S 134 _t
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(ground.)_S 134 _t
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(various)_S 67 _t
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(constants)_S 1200 5185 _m
(VRL_COORD_LOCAL,)_S 67 _t
(VRL_COORD_PARENT,)_S 67 _t
(VRL_COORD_WORLD,)_S 67 _t
(and)_S 1200 4952 _m
(VRL_COORD_OBJREL.)_S 134 _t
(The)_S 67 _t
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(coordinate)_S 67 _t
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(of)_S 67 _t
(the)_S 1200 4719 _m
(VRL_COORD_OBJREL)_S 67 _t
(coordinate)_S 67 _t
(frame,)_S 67 _t
(with)_S 67 _t
(the)_S 67 _t
(viewer)_S 67 _t
(as)_S 67 _t
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(the)_S 67 _t
(movement)_S 1200 4486 _m
(should)_S 67 _t
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(relative)_S 67 _t
(to.)_S 1200 3990 _m
/Times-BoldR 720 _ff
(Worlds)_S 1960 3990 _m
/Times-RomanR 600 _ff
1800 3514 _m
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(AVRIL,)_S 67 _t
(a)_S 67 _t
(virtual)_S 67 _t
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(collection)_S 67 _t
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(objects,)_S 67 _t
(light)_S 67 _t
(sources,)_S 67 _t
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(cameras)_S 67 _t
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(You)_S 67 _t
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(AVRIL)_S 1200 3048 _m
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(you)_S 1200 2815 _m
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(anything)_S 1200 1883 _m
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(variables)_S 67 _t
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(type)_S 8800 1255 _m
(26)_S _ep
_bp /Times-RomanR 600 _ff
0 13200 10200 _ornt
/_r { sflg {/_t {0 rmoveto}bdef /ron false def}
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1200 11855 _m
(vrl_World)_S 67 _t
(and)_S 67 _t
(initialize)_S 67 _t
(them)_S 67 _t
(by)_S 67 _t
(calling)_S 67 _t
(vrl_WorldInit\(&yourworld\);)_S 67 _t
(however,)_S 67 _t
(it's)_S 67 _t
(probably)_S 1200 11622 _m
(better)_S 67 _t
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(dynamically)_S 67 _t
(allocate)_S 67 _t
(them)_S 67 _t
(using)_S 67 _t
(malloc\(\).)_S 134 _t
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(fact,)_S 67 _t
(the)_S 67 _t
(simplest)_S 67 _t
(way)_S 67 _t
(to)_S 67 _t
(create)_S 67 _t
(a)_S 1200 11389 _m
(world)_S 67 _t
(is)_S 67 _t
(with)_S 67 _t
(the)_S 67 _t
(vrl_WorldCreate\(\))_S 67 _t
(function,)_S 67 _t
(which)_S 67 _t
(allocates)_S 67 _t
(the)_S 67 _t
(space)_S 67 _t
(and)_S 67 _t
(initializes)_S 67 _t
(the)_S 1200 11156 _m
(world)_S 67 _t
(for)_S 67 _t
(you.)_S 134 _t
(To)_S 67 _t
(make)_S 67 _t
(a)_S 67 _t
(given)_S 67 _t
(world)_S 67 _t
(current,)_S 67 _t
(use)_S 67 _t
(the)_S 67 _t
(vrl_WorldSetCurrent\(\))_S 67 _t
(function;)_S 67 _t
(the)_S 1200 10923 _m
(vrl_WorldGetCurrent\(\))_S 67 _t
(function)_S 67 _t
(can)_S 67 _t
(be)_S 67 _t
(used)_S 67 _t
(to)_S 67 _t
(get)_S 67 _t
(a)_S 67 _t
(pointer)_S 67 _t
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(the)_S 67 _t
(current)_S 67 _t
(world.)_S 1800 10511 _m
/CourierR 400 _ff
(vrl_World)_S 80 _t
(*vrl_WorldInit\(vrl_World)_S 80 _t
(*world\);)_S 1800 10378 _m
(vrl_World)_S 80 _t
(*vrl_WorldCreate\(void\);)_S 1800 10245 _m
(void)_S 80 _t
(vrl_WorldSetCurrent\(vrl_World)_S 80 _t
(*world\);)_S 1800 10112 _m
(vrl_World)_S 80 _t
(*vrl_WorldGetCurrent\(void\);)_S 1200 9792 _m
/Times-RomanR 600 _ff
(You)_S 67 _t
(can)_S 67 _t
(easily)_S 67 _t
(add)_S 67 _t
(objects,)_S 67 _t
(light)_S 67 _t
(sources)_S 67 _t
(and)_S 67 _t
(cameras)_S 67 _t
(to)_S 67 _t
(the)_S 67 _t
(current)_S 67 _t
(world,)_S 67 _t
(and)_S 67 _t
(remove)_S 67 _t
(them;)_S 1200 9559 _m
(you)_S 67 _t
(can)_S 67 _t
(also)_S 67 _t
(count)_S 67 _t
(how)_S 67 _t
(many)_S 67 _t
(of)_S 67 _t
(each)_S 67 _t
(the)_S 67 _t
(current)_S 67 _t
(world)_S 67 _t
(contains,)_S 67 _t
(and)_S 67 _t
(get)_S 67 _t
(pointers)_S 67 _t
(to)_S 67 _t
(the)_S 1200 9326 _m
(linked)_S 67 _t
(list)_S 67 _t
(of)_S 67 _t
(lights,)_S 67 _t
(linked)_S 67 _t
(list)_S 67 _t
(of)_S 67 _t
(cameras)_S 67 _t
(and)_S 67 _t
(the)_S 67 _t
(hierarchical)_S 67 _t
(tree)_S 67 _t
(of)_S 67 _t
(objects)_S 134 _t
(You)_S 67 _t
(can)_S 67 _t
(also)_S 1200 9093 _m
(find)_S 67 _t
(lights,)_S 67 _t
(cameras)_S 67 _t
(and)_S 67 _t
(objects)_S 67 _t
(by)_S 67 _t
(name.)_S 1800 8681 _m
/CourierR 400 _ff
(void)_S 80 _t
(vrl_WorldAddLight\(vrl_Light)_S 80 _t
(*light\);)_S 1800 8548 _m
(void)_S 80 _t
(vrl_WorldRemoveLight\(vrl_Light)_S 80 _t
(*light\);)_S 1800 8415 _m
(vrl_Light)_S 80 _t
(*vrl_WorldFindLight\(char)_S 80 _t
(*name\);)_S 1800 8149 _m
(void)_S 80 _t
(vrl_WorldAddCamera\(vrl_Camera)_S 80 _t
(*camera\);)_S 1800 8016 _m
(void)_S 80 _t
(vrl_WorldRemoveCamera\(vrl_Camera)_S 80 _t
(*camera\);)_S 1800 7883 _m
(vrl_Camera)_S 80 _t
(*vrl_WorldFindCamera\(char)_S 80 _t
(*name\);)_S 1800 7617 _m
(void)_S 80 _t
(vrl_WorldAddObject\(vrl_Object)_S 80 _t
(*obj\);)_S 1800 7484 _m
(void)_S 80 _t
(vrl_WorldRemoveObject\(vrl_Object)_S 80 _t
(*obj\);)_S 1800 7351 _m
(vrl_Object)_S 80 _t
(*vrl_WorldFindObject\(char)_S 80 _t
(*name\);)_S 1800 7085 _m
(int)_S 80 _t
(vrl_WorldCountObjects\(void\);)_S 1800 6952 _m
(int)_S 80 _t
(vrl_WorldCountLights\(void\);)_S 1800 6819 _m
(int)_S 80 _t
(vrl_WorldCountCameras\(void\);)_S 1800 6553 _m
(vrl_Light)_S 80 _t
(*vrl_WorldGetLights\(void\);)_S 1800 6420 _m
(vrl_Light)_S 80 _t
(*vrl_WorldGetCameras\(void\);)_S 1800 6287 _m
(vrl_Object)_S 80 _t
(*vrl_WorldGetObjectTree\(void\);)_S /Times-RomanR 600 _ff
1200 5867 _m
(If)_S 67 _t
(you)_S 67 _t
(need)_S 67 _t
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(iterate)_S 67 _t
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(the)_S 67 _t
(linked)_S 67 _t
(list)_S 67 _t
(of)_S 67 _t
(lights)_S 67 _t
(or)_S 67 _t
(cameras,)_S 67 _t
(you)_S 67 _t
(can)_S 67 _t
(use)_S 67 _t
(the)_S 67 _t
(functions)_S 1800 5455 _m
/CourierR 400 _ff
(vrl_Light)_S 80 _t
(*vrl_LightGetNext\(vrl_Light)_S 80 _t
(*light\);)_S 1800 5322 _m
(vrl_Camera)_S 80 _t
(*vrl_CameraGetNext\(vrl_Camera)_S 80 _t
(*camera\);)_S /Times-RomanR 600 _ff
1200 4902 _m
(You)_S 67 _t
(can)_S 67 _t
(also)_S 67 _t
(obtain)_S 67 _t
(information)_S 67 _t
(about)_S 67 _t
(the)_S 67 _t
(total)_S 67 _t
(number)_S 67 _t
(of)_S 67 _t
(facets)_S 67 _t
(in)_S 67 _t
(the)_S 67 _t
(world,)_S 67 _t
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(minimum)_S 1200 4669 _m
(and)_S 67 _t
(maximum)_S 67 _t
(bounds)_S 67 _t
(of)_S 67 _t
(the)_S 67 _t
(world,)_S 67 _t
(the)_S 67 _t
(center)_S 67 _t
(of)_S 67 _t
(the)_S 67 _t
(world)_S 67 _t
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(the)_S 67 _t
(radius)_S 67 _t
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(the)_S 67 _t
(world's)_S 1200 4436 _m
(bounding)_S 67 _t
(sphere)_S 67 _t
(using)_S 67 _t
(these)_S 67 _t
(functions:)_S 1800 4024 _m
/CourierR 400 _ff
(int)_S 80 _t
(vrl_WorldCountFacets\(void\);)_S 1800 3891 _m
(void)_S 80 _t
(vrl_WorldGetBounds\(vrl_Vector)_S 80 _t
(v1,)_S 80 _t
(vrl_Vector)_S 80 _t
(v2\);)_S 1800 3758 _m
(void)_S 80 _t
(vrl_WorldGetCenter\(vrl_Vector)_S 80 _t
(v\);)_S 1800 3625 _m
(vrl_Scalar)_S 80 _t
(vrl_WorldGetSize\(void\);)_S /Times-RomanR 600 _ff
1200 3205 _m
(Each)_S 67 _t
(world)_S 67 _t
(has)_S 67 _t
(a)_S 67 _t
("current)_S 67 _t
(camera")_S 67 _t
(through)_S 67 _t
(which)_S 67 _t
(the)_S 67 _t
(world)_S 67 _t
(is)_S 67 _t
(seen;)_S 67 _t
(you)_S 67 _t
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(set)_S 67 _t
(the)_S 67 _t
(current)_S 1200 2972 _m
(camera,)_S 67 _t
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(get)_S 67 _t
(a)_S 67 _t
(pointer)_S 67 _t
(to)_S 67 _t
(it)_S 67 _t
(using)_S 67 _t
(these)_S 67 _t
(routines:)_S 1800 2560 _m
/CourierR 400 _ff
(void)_S 80 _t
(vrl_WorldSetCamera\(vrl_Camera)_S 80 _t
(*cam\);)_S 1800 2427 _m
(vrl_Camera)_S 80 _t
(*vrl_WorldGetCamera\(void\);)_S /Times-RomanR 600 _ff
1200 2007 _m
(The)_S 67 _t
(clearing)_S 67 _t
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(the)_S 67 _t
(screen)_S 67 _t
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(each)_S 67 _t
(frame,)_S 67 _t
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(the)_S 67 _t
(use)_S 67 _t
(\(and)_S 67 _t
(colors\))_S 67 _t
(of)_S 67 _t
(the)_S 67 _t
(horizon,)_S 67 _t
(are)_S 1200 1774 _m
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(the)_S 67 _t
(following)_S 67 _t
(functions:)_S 8800 1255 _m
(27)_S _ep
_bp /CourierR 400 _ff
0 13200 10200 _ornt
/_r { sflg {/_t {0 rmoveto}bdef /ron false def}
{ /_S /show load def /_t {0 rmoveto}bdef /ron false def}ifelse
}bdef
1800 11909 _m
(void)_S 80 _t
(vrl_WorldSetScreenClear\(int)_S 80 _t
(n\);)_S 1800 11776 _m
(int)_S 80 _t
(vrl_WorldGetScreenClear\(void\);)_S 1800 11643 _m
(void)_S 80 _t
(vrl_WorldToggleScreenClear\(void\);)_S 1800 11377 _m
(void)_S 80 _t
(vrl_WorldSetHorizon\(int)_S 80 _t
(n\);)_S 1800 11244 _m
(int)_S 80 _t
(vrl_WorldGetHorizon\(void\);)_S 1800 11111 _m
(void)_S 80 _t
(vrl_WorldToggleHorizon\(void\);)_S 1800 10845 _m
(void)_S 80 _t
(vrl_WorldSetGroundColor\(int)_S 80 _t
(color\);)_S 1800 10712 _m
(int)_S 80 _t
(vrl_WorldGetGroundColor\(void\);)_S 1800 10446 _m
(void)_S 80 _t
(vrl_WorldSetSkyColor\(int)_S 80 _t
(color\);)_S 1800 10313 _m
(int)_S 80 _t
(vrl_WorldGetSkyColor\(void\);)_S /Times-RomanR 600 _ff
1200 9893 _m
(The)_S 67 _t
(rate)_S 67 _t
(at)_S 67 _t
(which)_S 67 _t
(the)_S 67 _t
(user)_S 67 _t
(moves)_S 67 _t
(and)_S 67 _t
(turns)_S 67 _t
(is)_S 67 _t
(controlled)_S 67 _t
(by)_S 67 _t
(the)_S 67 _t
("turn")_S 67 _t
(step)_S 67 _t
(and)_S 67 _t
(the)_S 67 _t
("move")_S 1200 9660 _m
(step.)_S 134 _t
(In)_S 67 _t
(addition,)_S 67 _t
(the)_S 67 _t
(movement)_S 67 _t
("mode")_S 67 _t
(can)_S 67 _t
(be)_S 67 _t
(set)_S 67 _t
(to)_S 67 _t
(0)_S 67 _t
(or)_S 67 _t
(1;)_S 67 _t
(if)_S 67 _t
(it's)_S 67 _t
(1)_S 67 _t
(\(the)_S 67 _t
(default\))_S 67 _t
(then)_S 1200 9427 _m
(simple)_S 67 _t
(movement)_S 67 _t
(can)_S 67 _t
(move)_S 67 _t
(the)_S 67 _t
(user)_S 67 _t
(vertically,)_S 67 _t
(otherwise)_S 67 _t
(they)_S 67 _t
(stay)_S 67 _t
(on)_S 67 _t
(the)_S 67 _t
(ground.)_S 134 _t
(Note)_S 67 _t
(that)_S 1200 9194 _m
(these)_S 67 _t
(are)_S 67 _t
(really)_S 67 _t
(only)_S 67 _t
(suggestions,)_S 67 _t
(and)_S 67 _t
(it's)_S 67 _t
(up)_S 67 _t
(to)_S 67 _t
(the)_S 67 _t
(application)_S 67 _t
(to)_S 67 _t
(make)_S 67 _t
(use)_S 67 _t
(of)_S 67 _t
(them.)_S 1800 8782 _m
/CourierR 400 _ff
(void)_S 80 _t
(vrl_WorldSetMovementMode\(int)_S 80 _t
(n\);)_S 1800 8649 _m
(int)_S 80 _t
(vrl_WorldGetMovementMode\(void\);)_S 1800 8516 _m
(void)_S 80 _t
(vrl_WorldToggleMovementMode\(void\);)_S 1800 8250 _m
(void)_S 80 _t
(vrl_WorldSetMovestep\(vrl_Scalar)_S 80 _t
(distance\);)_S 1800 8117 _m
(vrl_Scalar)_S 80 _t
(vrl_WorldGetMovestep\(void\);)_S 1800 7851 _m
(void)_S 80 _t
(vrl_WorldSetTurnstep\(vrl_Angle)_S 80 _t
(angle\);)_S 1800 7718 _m
(vrl_Angle)_S 80 _t
(vrl_WorldGetTurnstep\(void\);)_S /Times-RomanR 600 _ff
1200 7298 _m
(Finally,)_S 67 _t
(additional)_S 67 _t
(aspects)_S 67 _t
(of)_S 67 _t
(the)_S 67 _t
(virtual)_S 67 _t
(world)_S 67 _t
(such)_S 67 _t
(as)_S 67 _t
(the)_S 67 _t
(ambient)_S 67 _t
(light)_S 67 _t
(level)_S 67 _t
(and)_S 67 _t
(the)_S 67 _t
("scale)_S 1200 7065 _m
(factor")_S 67 _t
(\(the)_S 67 _t
(number)_S 67 _t
(of)_S 67 _t
(real-world)_S 67 _t
(millimeters)_S 67 _t
(per)_S 67 _t
(unit)_S 67 _t
(of)_S 67 _t
(distance)_S 67 _t
(in)_S 67 _t
(the)_S 67 _t
(virtual)_S 67 _t
(world\))_S 67 _t
(can)_S 67 _t
(be)_S 1200 6832 _m
(set)_S 67 _t
(and)_S 67 _t
(queried)_S 67 _t
(using)_S 67 _t
(the)_S 67 _t
(following)_S 67 _t
(functions:)_S 1800 6420 _m
/CourierR 400 _ff
(void)_S 80 _t
(vrl_WorldSetAmbient\(vrl_Factor)_S 80 _t
(ambient\);)_S 1800 6287 _m
(vrl_Factor)_S 80 _t
(vrl_WorldGetAmbient\(void\);)_S 1800 6021 _m
(void)_S 80 _t
(vrl_WorldSetScale\(vrl_Scalar)_S 80 _t
(scale\);)_S 1800 5888 _m
(vrl_Scalar)_S 80 _t
(vrl_WorldGetScale\(void\);)_S /Times-RomanR 600 _ff
1200 5438 _m
/Times-BoldR 720 _ff
(Objects)_S 1987 5438 _m
/Times-RomanR 600 _ff
1800 4962 _m
(Objects)_S 67 _t
(are)_S 67 _t
(the)_S 67 _t
(most)_S 67 _t
(important)_S 67 _t
(entities)_S 67 _t
(in)_S 67 _t
(a)_S 67 _t
(virtual)_S 67 _t
(world.)_S 134 _t
(All)_S 67 _t
(objects)_S 67 _t
(have)_S 67 _t
(a)_S 67 _t
(location)_S 1200 4729 _m
(and)_S 67 _t
(orientation,)_S 67 _t
(and)_S 67 _t
(they)_S 67 _t
(can)_S 67 _t
(be)_S 67 _t
(attached)_S 67 _t
(to)_S 67 _t
(each)_S 67 _t
(other)_S 67 _t
(in)_S 67 _t
(a)_S 67 _t
(tree-structured)_S 67 _t
(hierarchy.)_S 134 _t
(Each)_S 1200 4496 _m
(object)_S 67 _t
(can)_S 67 _t
(have)_S 67 _t
(a)_S 67 _t
(shape)_S 67 _t
(\(i.e.)_S 67 _t
(geometric)_S 67 _t
(description\))_S 67 _t
(and)_S 67 _t
(a)_S 67 _t
(surface)_S 67 _t
(map.)_S 134 _t
(You)_S 67 _t
(can)_S 67 _t
(create)_S 67 _t
(an)_S 1200 4263 _m
(object)_S 67 _t
(statically)_S 67 _t
(\(by)_S 67 _t
(declaring)_S 67 _t
(a)_S 67 _t
(variable)_S 67 _t
(of)_S 67 _t
(type)_S 67 _t
(vrl_Object\))_S 67 _t
(or)_S 67 _t
(dynamically)_S 67 _t
(\(either)_S 67 _t
(by)_S 67 _t
(using)_S 1200 4030 _m
(malloc\(\))_S 67 _t
(to)_S 67 _t
(allocate)_S 67 _t
(the)_S 67 _t
(space)_S 67 _t
(and)_S 67 _t
(vrl_ObjectInit\(\))_S 67 _t
(to)_S 67 _t
(initialize)_S 67 _t
(it,)_S 67 _t
(or)_S 67 _t
(by)_S 67 _t
(simply)_S 67 _t
(calling)_S 1200 3797 _m
(vrl_ObjectCreate\(\)\).)_S 134 _t
(If)_S 67 _t
(you)_S 67 _t
(use)_S 67 _t
(vrl_ObjectCreate\(\),)_S 67 _t
(you)_S 67 _t
(can)_S 67 _t
(optionally)_S 67 _t
(specify)_S 67 _t
(a)_S 67 _t
(shape)_S 67 _t
(for)_S 67 _t
(the)_S 1200 3564 _m
(object)_S 67 _t
(to)_S 67 _t
(use;)_S 67 _t
(if)_S 67 _t
(you)_S 67 _t
(don't)_S 67 _t
(want)_S 67 _t
(to)_S 67 _t
(assign)_S 67 _t
(a)_S 67 _t
(shape,)_S 67 _t
(use)_S 67 _t
(NULL.)_S 134 _t
(You)_S 67 _t
(can)_S 67 _t
(also)_S 67 _t
(destroy)_S 67 _t
(objects)_S 1200 3331 _m
(using)_S 67 _t
(vrl_ObjectDestroy.)_S 1800 2919 _m
/CourierR 400 _ff
(vrl_Object)_S 80 _t
(*vrl_ObjectInit\(vrl_Object)_S 80 _t
(*obj\);)_S 1800 2786 _m
(vrl_Object)_S 80 _t
(*vrl_ObjectCreate\(vrl_Shape)_S 80 _t
(*shape\);)_S 1800 2653 _m
(void)_S 80 _t
(vrl_ObjectDestroy\(vrl_Object)_S 80 _t
(*object\);)_S /Times-RomanR 600 _ff
1200 2100 _m
(You)_S 67 _t
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(create)_S 67 _t
(an)_S 67 _t
(exact)_S 67 _t
(copy)_S 67 _t
(of)_S 67 _t
(an)_S 67 _t
(object)_S 67 _t
(using)_S 67 _t
(the)_S 67 _t
(function)_S 8800 1255 _m
(28)_S _ep
_bp /CourierR 400 _ff
0 13200 10200 _ornt
/_r { sflg {/_t {0 rmoveto}bdef /ron false def}
{ /_S /show load def /_t {0 rmoveto}bdef /ron false def}ifelse
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1800 11909 _m
(vrl_Object)_S 80 _t
(*vrl_ObjectCopy\(vrl_Object)_S 80 _t
(*obj\);)_S /Times-RomanR 600 _ff
1200 11489 _m
(Note)_S 67 _t
(that)_S 67 _t
(the)_S 67 _t
(newly-created)_S 67 _t
(object)_S 67 _t
(will)_S 67 _t
(share)_S 67 _t
(all)_S 67 _t
(the)_S 67 _t
(same)_S 67 _t
(properties)_S 67 _t
(\(including)_S 67 _t
(the)_S 67 _t
(shape)_S 67 _t
(and)_S 1200 11256 _m
(surface)_S 67 _t
(map\))_S 67 _t
(as)_S 67 _t
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(the)_S 67 _t
(exact)_S 67 _t
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(location)_S 67 _t
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(the)_S 67 _t
(original;)_S 67 _t
(you)_S 67 _t
(should)_S 1200 11023 _m
(probably)_S 67 _t
(move)_S 67 _t
(it.)_S 134 _t
(The)_S 67 _t
(copy)_S 67 _t
(will)_S 67 _t
(have)_S 67 _t
(nothing)_S 67 _t
(attached)_S 67 _t
(to)_S 67 _t
(it)_S 67 _t
(\(it)_S 67 _t
(doesn't)_S 67 _t
(inherit)_S 67 _t
(children)_S 67 _t
(from)_S 1200 10790 _m
(the)_S 67 _t
(original\),)_S 67 _t
(and)_S 67 _t
(will)_S 67 _t
(be)_S 67 _t
(a)_S 67 _t
(sibling)_S 67 _t
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(the)_S 67 _t
(original)_S 67 _t
(\(sharing)_S 67 _t
(the)_S 67 _t
(same)_S 67 _t
(parent,)_S 67 _t
(if)_S 67 _t
(any\).)_S 1200 10324 _m
(Objects)_S 67 _t
(can)_S 67 _t
(be)_S 67 _t
(rotated)_S 67 _t
(around)_S 67 _t
(any)_S 67 _t
(of)_S 67 _t
(the)_S 67 _t
(axes,)_S 67 _t
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(any)_S 67 _t
(coordinate)_S 67 _t
(frame,)_S 67 _t
(using)_S 67 _t
(the)_S 67 _t
(following)_S 1200 10091 _m
(function:)_S 1800 9679 _m
/CourierR 400 _ff
(void)_S 80 _t
(vrl_ObjectRotate\(vrl_Object)_S 80 _t
(*obj,)_S 80 _t
(vrl_Angle)_S 80 _t
(angle,)_S 80 _t
(int)_S 80 _t
(axis,)_S 2400 9546 _m
(vrl_CoordFrame)_S 80 _t
(frame,)_S 80 _t
(vrl_Object)_S 80 _t
(*relative_to\);)_S /Times-RomanR 600 _ff
1200 9124 _m
(The)_S 67 _t
1578 9124 _m
/Times-ItalicR 600 _ff
(axis)_S 1900 9124 _m
/Times-RomanR 600 _ff
67 _t
(is)_S 67 _t
(one)_S 67 _t
(of)_S 67 _t
(the)_S 67 _t
(defined)_S 67 _t
(constants)_S 67 _t
(X,)_S 67 _t
(Y)_S 67 _t
(or)_S 67 _t
(Z.)_S 134 _t
(The)_S 67 _t
5937 9124 _m
/Times-ItalicR 600 _ff
(frame)_S 6404 9124 _m
/Times-RomanR 600 _ff
67 _t
(is)_S 67 _t
(one)_S 67 _t
(of)_S 67 _t
(the)_S 67 _t
(coordinate)_S 1200 8889 _m
(frames)_S 67 _t
(discussed)_S 67 _t
(earlier.)_S 134 _t
(If)_S 67 _t
(the)_S 67 _t
3851 8889 _m
/Times-ItalicR 600 _ff
(frame)_S 4318 8889 _m
/Times-RomanR 600 _ff
67 _t
(is)_S 67 _t
(VRL_COORD_OBJREL,)_S 67 _t
(then)_S 67 _t
(the)_S 67 _t
7458 8889 _m
/Times-ItalicR 600 _ff
(relative_to)_S /Times-RomanR 600 _ff
1200 8656 _m
(parameter)_S 67 _t
(points)_S 67 _t
(to)_S 67 _t
(the)_S 67 _t
(object)_S 67 _t
(that)_S 67 _t
(motion)_S 67 _t
(should)_S 67 _t
(be)_S 67 _t
(relative)_S 67 _t
(to.)_S 134 _t
(For)_S 67 _t
(example,)_S 67 _t
(to)_S 67 _t
(rotate)_S 67 _t
(an)_S 1200 8423 _m
(object)_S 67 _t
(45)_S 67 _t
(degrees)_S 67 _t
(around)_S 67 _t
(the)_S 67 _t
(viewer's)_S 67 _t
(Z)_S 67 _t
(axis,)_S 67 _t
(you)_S 67 _t
(would)_S 67 _t
(make)_S 67 _t
(the)_S 67 _t
(following)_S 67 _t
(call:)_S 1800 8011 _m
/CourierR 400 _ff
(vrl_ObjectRotate\(obj,)_S 80 _t
(float2angle\(45\),)_S 80 _t
(Z,)_S 2400 7878 _m
(VRL_COORD_OBJREL,)_S 80 _t
(vrl_CameraGetObject\(vrl_WorldGetCamera\(\)\)\);)_S /Times-RomanR 600 _ff
1200 7458 _m
(You)_S 67 _t
(can)_S 67 _t
(also)_S 67 _t
(orient)_S 67 _t
(an)_S 67 _t
(object)_S 67 _t
(to)_S 67 _t
("look")_S 67 _t
(in)_S 67 _t
(a)_S 67 _t
(particular)_S 67 _t
(direction)_S 67 _t
(using)_S 67 _t
(the)_S 67 _t
(function)_S 1800 7046 _m
/CourierR 400 _ff
(void)_S 80 _t
(vrl_ObjectLookAt\(vrl_Object)_S 80 _t
(*obj,)_S 80 _t
(vrl_Vector)_S 80 _t
(forward,)_S 80 _t
(vrl_Vector)_S 80 _t
(up\);)_S /Times-RomanR 600 _ff
1200 6624 _m
(The)_S 67 _t
(object)_S 67 _t
(will)_S 67 _t
(be)_S 67 _t
(rotated)_S 67 _t
(so)_S 67 _t
(that)_S 67 _t
(it's)_S 67 _t
(Z)_S 67 _t
(axis)_S 67 _t
(points)_S 67 _t
(along)_S 67 _t
(the)_S 67 _t
6282 6624 _m
/Times-ItalicR 600 _ff
(forward)_S 6926 6624 _m
/Times-RomanR 600 _ff
67 _t
(vector,)_S 67 _t
(and)_S 67 _t
(its)_S 67 _t
(Y)_S 67 _t
(axis)_S 1200 6389 _m
(points)_S 67 _t
(in)_S 67 _t
(the)_S 67 _t
(general)_S 67 _t
(direction)_S 67 _t
(of)_S 67 _t
(the)_S 67 _t
4269 6389 _m
/Times-ItalicR 600 _ff
(up)_S 4469 6389 _m
/Times-RomanR 600 _ff
67 _t
(vector.)_S 134 _t
(Note)_S 67 _t
(that)_S 67 _t
(the)_S 67 _t
(actual)_S 67 _t
(Y)_S 67 _t
(orientation)_S 67 _t
(may)_S 67 _t
(be)_S 1200 6154 _m
(different,)_S 67 _t
(unless)_S 67 _t
(you)_S 67 _t
(make)_S 67 _t
(sure)_S 67 _t
(that)_S 67 _t
4207 6154 _m
/Times-ItalicR 600 _ff
(up)_S 4407 6154 _m
/Times-RomanR 600 _ff
67 _t
(is)_S 67 _t
(perpendicular)_S 67 _t
(to)_S 67 _t
6064 6154 _m
/Times-ItalicR 600 _ff
(forward)_S 6708 6154 _m
/Times-RomanR 600 _ff
(.)_S 134 _t
(The)_S 67 _t
7270 6154 _m
/Times-ItalicR 600 _ff
(up)_S 7470 6154 _m
/Times-RomanR 600 _ff
67 _t
(and)_S 67 _t
7893 6154 _m
/Times-ItalicR 600 _ff
(forward)_S /Times-RomanR 600 _ff
1200 5921 _m
(vectors)_S 67 _t
(are)_S 67 _t
(specified)_S 67 _t
(in)_S 67 _t
(world)_S 67 _t
(coordinates,)_S 67 _t
(and)_S 67 _t
(should)_S 67 _t
(both)_S 67 _t
(be)_S 67 _t
(unit)_S 67 _t
(vectors;)_S 67 _t
(you)_S 67 _t
(may)_S 67 _t
(find)_S 67 _t
(the)_S 1200 5688 _m
(vrl_VectorNormalize\(\))_S 67 _t
(function)_S 67 _t
(handy)_S 67 _t
(for)_S 67 _t
(this.)_S 1200 5222 _m
(Translations)_S 67 _t
(of)_S 67 _t
(an)_S 67 _t
(object)_S 67 _t
(are)_S 67 _t
(done)_S 67 _t
(with)_S 67 _t
(the)_S 67 _t
(following)_S 67 _t
(function:)_S 1800 4810 _m
/CourierR 400 _ff
(void)_S 80 _t
(vrl_ObjectTranslate\(vrl_Object)_S 80 _t
(*obj,)_S 80 _t
(vrl_Vector)_S 80 _t
(v,)_S 2400 4677 _m
(vrl_CoordFrame)_S 80 _t
(frame,)_S 80 _t
(vrl_Object)_S 80 _t
(*relative_to\);)_S /Times-RomanR 600 _ff
1200 4255 _m
(The)_S 67 _t
(object)_S 67 _t
(is)_S 67 _t
(moved)_S 67 _t
(along)_S 67 _t
(the)_S 67 _t
(vrl_Vector)_S 67 _t
4702 4255 _m
/Times-ItalicR 600 _ff
(v)_S 4791 4255 _m
/Times-RomanR 600 _ff
67 _t
(in)_S 67 _t
(the)_S 67 _t
(specified)_S 67 _t
6181 4255 _m
/Times-ItalicR 600 _ff
(frame)_S 6647 4255 _m
/Times-RomanR 600 _ff
(.)_S 134 _t
(The)_S 67 _t
(meaning)_S 67 _t
(of)_S 67 _t
(the)_S 1200 4020 _m
/Times-ItalicR 600 _ff
(relative_to)_S 2067 4020 _m
/Times-RomanR 600 _ff
67 _t
(parameter)_S 67 _t
(is)_S 67 _t
(the)_S 67 _t
(same)_S 67 _t
(as)_S 67 _t
(it)_S 67 _t
(was)_S 67 _t
(for)_S 67 _t
(vrl_ObjectRotate\(\).)_S 1200 3554 _m
(The)_S 67 _t
(vrl_ObjectRotate\(\))_S 67 _t
(and)_S 67 _t
(vrl_ObjectTranslate\(\))_S 67 _t
(routines)_S 67 _t
(both)_S 67 _t
(apply)_S 67 _t
(a)_S 67 _t
(rotation)_S 67 _t
(to)_S 67 _t
(the)_S 67 _t
(current)_S 1200 3321 _m
(state)_S 67 _t
(of)_S 67 _t
(the)_S 67 _t
(object.)_S 134 _t
(If)_S 67 _t
(you)_S 67 _t
(wish)_S 67 _t
(to)_S 67 _t
(make)_S 67 _t
(the)_S 67 _t
(rotations)_S 67 _t
(absolute,)_S 67 _t
(call)_S 67 _t
(vrl_ObjectRotReset\(obj\).)_S 67 _t
1200 3088 _m
(If)_S 67 _t
(you)_S 67 _t
(wish)_S 67 _t
(to)_S 67 _t
(make)_S 67 _t
(translations)_S 67 _t
(absolute,)_S 67 _t
(call)_S 67 _t
(vrl_ObjectVectorMove\(obj,)_S 67 _t
(vrl_VectorNULL\).)_S 67 _t
1200 2855 _m
(These)_S 67 _t
(should)_S 67 _t
(both)_S 67 _t
(be)_S 67 _t
(done)_S 67 _t
(before)_S 67 _t
(applying)_S 67 _t
(the)_S 67 _t
(vrl_ObjectRotate\(\))_S 67 _t
(and)_S 67 _t
(vrl_ObjectTranslate\(\))_S 1200 2622 _m
(functions.)_S 1200 2156 _m
(to)_S 67 _t
(set)_S 67 _t
(the)_S 67 _t
(translations)_S 67 _t
(to)_S 67 _t
(zero.)_S 8800 1255 _m
(29)_S _ep
_bp /Times-RomanR 600 _ff
0 13200 10200 _ornt
/_r { sflg {/_t {0 rmoveto}bdef /ron false def}
{ /_S /show load def /_t {0 rmoveto}bdef /ron false def}ifelse
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1200 11855 _m
(The)_S 67 _t
(vrl_ObjectRotate\(\))_S 67 _t
(and)_S 67 _t
(vrl_ObjectTranslate\(\))_S 67 _t
(functions)_S 67 _t
(should)_S 67 _t
(be)_S 67 _t
(used)_S 67 _t
(for)_S 67 _t
(all)_S 67 _t
(object)_S 1200 11622 _m
(rotation)_S 67 _t
(and)_S 67 _t
(translation.)_S 134 _t
(Some)_S 67 _t
(older)_S 67 _t
(functions)_S 67 _t
(are)_S 67 _t
(also)_S 67 _t
(provided)_S 67 _t
(for)_S 67 _t
(rotating)_S 67 _t
(and)_S 67 _t
(moving)_S 1200 11389 _m
(objects)_S 67 _t
(relative)_S 67 _t
(to)_S 67 _t
(their)_S 67 _t
(parent)_S 67 _t
(\(one)_S 67 _t
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(the)_S 67 _t
(more)_S 67 _t
(common)_S 67 _t
(cases\);)_S 67 _t
(they)_S 67 _t
(are)_S 67 _t
(as)_S 67 _t
(follows:)_S 1800 10977 _m
/CourierR 400 _ff
(void)_S 80 _t
(vrl_ObjectMove\(vrl_Object)_S 80 _t
(*obj,)_S 80 _t
(vrl_Scalar)_S 80 _t
(x,)_S 80 _t
(vrl_Scalar)_S 80 _t
(y,)_S 80 _t
(vrl_Scalar)_S 80 _t
(z\);)_S 1800 10844 _m
(void)_S 80 _t
(vrl_ObjectRelMove\(vrl_Object)_S 80 _t
(*obj,)_S 80 _t
(vrl_Scalar)_S 80 _t
(x,)_S 80 _t
(vrl_Scalar)_S 80 _t
(y,)_S 80 _t
(vrl_Scalar)_S 80 _t
(z\);)_S 1800 10711 _m
(void)_S 80 _t
(vrl_ObjectRotX\(vrl_Object)_S 80 _t
(*obj,)_S 80 _t
(vrl_Angle)_S 80 _t
(angle\);)_S 1800 10578 _m
(void)_S 80 _t
(vrl_ObjectRotY\(vrl_Object)_S 80 _t
(*obj,)_S 80 _t
(vrl_Angle)_S 80 _t
(angle\);)_S 1800 10445 _m
(void)_S 80 _t
(vrl_ObjectRotZ\(vrl_Object)_S 80 _t
(*obj,)_S 80 _t
(vrl_Angle)_S 80 _t
(angle\);)_S 1800 10312 _m
(void)_S 80 _t
(vrl_ObjectRotVector\(vrl_Object)_S 80 _t
(*obj,)_S 80 _t
(vrl_Angle)_S 80 _t
(angle,)_S 80 _t
(vrl_Vector)_S 80 _t
(vector\);)_S 1800 10179 _m
(void)_S 80 _t
(vrl_ObjectVectorMove\(vrl_Object)_S 80 _t
(*obj,)_S 80 _t
(vrl_Vector)_S 80 _t
(v\);)_S 1800 10046 _m
(void)_S 80 _t
(vrl_ObjectVectorRelMove\(vrl_Object)_S 80 _t
(*obj,)_S 80 _t
(vrl_Vector)_S 80 _t
(v\);)_S /Times-RomanR 600 _ff
1200 9626 _m
(An)_S 67 _t
(object's)_S 67 _t
(current)_S 67 _t
(location)_S 67 _t
(in)_S 67 _t
(the)_S 67 _t
(world)_S 67 _t
(coordinate)_S 67 _t
(frame)_S 67 _t
(can)_S 67 _t
(be)_S 67 _t
(obtained)_S 67 _t
(in)_S 67 _t
(two)_S 67 _t
(ways,)_S 1200 9393 _m
(either)_S 67 _t
(component-by-component)_S 67 _t
(for)_S 67 _t
(each)_S 67 _t
(of)_S 67 _t
(X,)_S 67 _t
(Y)_S 67 _t
(and)_S 67 _t
(Z,)_S 67 _t
(or)_S 67 _t
(copied)_S 67 _t
(into)_S 67 _t
(a)_S 67 _t
(vector:)_S 1800 8981 _m
/CourierR 400 _ff
(vrl_Scalar)_S 80 _t
(vrl_ObjectGetX\(vrl_Object)_S 80 _t
(*object\);)_S 1800 8848 _m
(vrl_Scalar)_S 80 _t
(vrl_ObjectGetY\(vrl_Object)_S 80 _t
(*object\);)_S 1800 8715 _m
(vrl_Scalar)_S 80 _t
(vrl_ObjectGetZ\(vrl_Object)_S 80 _t
(*object\);)_S 1800 8582 _m
(void)_S 80 _t
(vrl_ObjectGetLocation\(vrl_Object)_S 80 _t
(*object,)_S 80 _t
(vrl_Vector)_S 80 _t
(v\);)_S 1200 8262 _m
/Times-RomanR 600 _ff
(The)_S 67 _t
(current)_S 67 _t
(world-space)_S 67 _t
(orientation)_S 67 _t
(of)_S 67 _t
(an)_S 67 _t
(object's)_S 67 _t
("forward",)_S 67 _t
("up")_S 67 _t
(and)_S 67 _t
("right")_S 67 _t
(vectors)_S 67 _t
(can)_S 67 _t
(be)_S 1200 8029 _m
(obtained)_S 67 _t
(using)_S 67 _t
(the)_S 67 _t
(following)_S 67 _t
(routines:)_S 1800 7617 _m
/CourierR 400 _ff
(void)_S 80 _t
(vrl_ObjectGetForwardVector\(vrl_Object)_S 80 _t
(*object,)_S 80 _t
(vrl_Vector)_S 80 _t
(v\);)_S 1800 7484 _m
(void)_S 80 _t
(vrl_ObjectGetRightVector\(vrl_Object)_S 80 _t
(*object,)_S 80 _t
(vrl_Vector)_S 80 _t
(v\);)_S 1800 7351 _m
(void)_S 80 _t
(vrl_ObjectGetUpVector\(vrl_Object)_S 80 _t
(*object,)_S 80 _t
(vrl_Vector)_S 80 _t
(v\);)_S /Times-RomanR 600 _ff
1200 6931 _m
(The)_S 67 _t
(vectors)_S 67 _t
(filled)_S 67 _t
(in)_S 67 _t
(by)_S 67 _t
(these)_S 67 _t
(routines)_S 67 _t
(will)_S 67 _t
(all)_S 67 _t
(be)_S 67 _t
(normalized.)_S 1200 6465 _m
(An)_S 67 _t
(object)_S 67 _t
(can)_S 67 _t
(be)_S 67 _t
(attached)_S 67 _t
(to)_S 67 _t
(another)_S 67 _t
(object,)_S 67 _t
(or)_S 67 _t
(detached)_S 67 _t
(from)_S 67 _t
(whatever)_S 67 _t
(object)_S 67 _t
(it)_S 67 _t
(is)_S 67 _t
(currently)_S 1200 6232 _m
(attached)_S 67 _t
(to:)_S 1800 5820 _m
/CourierR 400 _ff
(vrl_Object)_S 80 _t
(*vrl_ObjectAttach\(vrl_Object)_S 80 _t
(*obj,)_S 80 _t
(vrl_Object)_S 80 _t
(*newparent\);)_S 1800 5687 _m
(vrl_Object)_S 80 _t
(*vrl_ObjectDetach\(vrl_Object)_S 80 _t
(*obj\);)_S /Times-RomanR 600 _ff
1200 5267 _m
(Note)_S 67 _t
(that)_S 67 _t
(movement)_S 67 _t
(and)_S 67 _t
(rotation)_S 67 _t
(in)_S 67 _t
(the)_S 67 _t
(VRL_COORD_PARENT)_S 67 _t
(system)_S 67 _t
(\(including)_S 67 _t
(that)_S 1200 5034 _m
(performed)_S 67 _t
(using)_S 67 _t
(vrl_ObjectRotX\(\))_S 67 _t
(and)_S 67 _t
(other)_S 67 _t
(similar)_S 67 _t
(functions\))_S 67 _t
(is)_S 67 _t
(carried)_S 67 _t
(out)_S 67 _t
(relative)_S 67 _t
(to)_S 67 _t
(the)_S 1200 4801 _m
(object's)_S 67 _t
(parent.)_S 134 _t
(In)_S 67 _t
(other)_S 67 _t
(words,)_S 67 _t
(if)_S 67 _t
(the)_S 67 _t
(object)_S 67 _t
(is)_S 67 _t
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(another)_S 67 _t
(object,)_S 67 _t
(its)_S 67 _t
(location)_S 67 _t
(and)_S 1200 4568 _m
(orientation)_S 67 _t
(will)_S 67 _t
(depend)_S 67 _t
(on)_S 67 _t
(that)_S 67 _t
(of)_S 67 _t
(its)_S 67 _t
(parent;)_S 67 _t
(if)_S 67 _t
(the)_S 67 _t
(parent)_S 67 _t
(moves,)_S 67 _t
(the)_S 67 _t
(child)_S 67 _t
(will)_S 67 _t
(move)_S 67 _t
(with)_S 67 _t
(it.)_S 67 _t
1200 4335 _m
(However,)_S 67 _t
(if)_S 67 _t
(the)_S 67 _t
(child)_S 67 _t
(moves)_S 67 _t
(the)_S 67 _t
(parent)_S 67 _t
(will)_S 67 _t
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(where)_S 67 _t
(it)_S 67 _t
(is.)_S 1200 3869 _m
(You)_S 67 _t
(can)_S 67 _t
(find)_S 67 _t
(the)_S 67 _t
("root")_S 67 _t
(of)_S 67 _t
(an)_S 67 _t
(object)_S 67 _t
(tree)_S 67 _t
(using)_S 67 _t
(the)_S 67 _t
(following)_S 67 _t
(function:)_S 1800 3457 _m
/CourierR 400 _ff
(vrl_Object)_S 80 _t
(*vrl_ObjectFindRoot\(vrl_Object)_S 80 _t
(*obj\);)_S /Times-RomanR 600 _ff
1200 3037 _m
(You)_S 67 _t
(can)_S 67 _t
(walk)_S 67 _t
(an)_S 67 _t
(entire)_S 67 _t
(object)_S 67 _t
(tree,)_S 67 _t
(executing)_S 67 _t
(a)_S 67 _t
(function)_S 67 _t
(on)_S 67 _t
(each)_S 67 _t
(node)_S 67 _t
(of)_S 67 _t
(the)_S 67 _t
(tree,)_S 67 _t
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(the)_S 1200 2804 _m
(following)_S 67 _t
(routine:)_S 1800 2392 _m
/CourierR 400 _ff
(void)_S 80 _t
(vrl_ObjectTraverse\(vrl_Object)_S 80 _t
(*object,)_S 80 _t
(int)_S 80 _t
(\(*function\)\(vrl_Object)_S 80 _t
(*obj\)\);)_S /Times-RomanR 600 _ff
8800 1255 _m
(30)_S _ep
_bp /Times-RomanR 600 _ff
0 13200 10200 _ornt
/_r { sflg {/_t {0 rmoveto}bdef /ron false def}
{ /_S /show load def /_t {0 rmoveto}bdef /ron false def}ifelse
}bdef
1200 11855 _m
(The)_S 67 _t
(function)_S 67 _t
(is)_S 67 _t
(called)_S 67 _t
(once)_S 67 _t
(for)_S 67 _t
(each)_S 67 _t
(object)_S 67 _t
(in)_S 67 _t
(the)_S 67 _t
(hierarchy,)_S 67 _t
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(is)_S 67 _t
(given)_S 67 _t
(a)_S 67 _t
(pointer)_S 67 _t
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(the)_S 1200 11622 _m
(object)_S 67 _t
(it's)_S 67 _t
(being)_S 67 _t
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(function)_S 67 _t
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(a)_S 67 _t
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(at)_S 67 _t
(any)_S 67 _t
(point,)_S 67 _t
(the)_S 67 _t
(tree)_S 67 _t
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(not)_S 1200 11389 _m
(processed)_S 67 _t
(any)_S 67 _t
(further.)_S 134 _t
(All)_S 67 _t
(parent)_S 67 _t
(objects)_S 67 _t
(are)_S 67 _t
(processed)_S 67 _t
(before)_S 67 _t
(their)_S 67 _t
(descendants.)_S 1200 10923 _m
(The)_S 67 _t
(distance)_S 67 _t
(between)_S 67 _t
(two)_S 67 _t
(objects)_S 67 _t
(can)_S 67 _t
(be)_S 67 _t
(found)_S 67 _t
(using)_S 1800 10511 _m
/CourierR 400 _ff
(vrl_Scalar)_S 80 _t
(vrl_ObjectComputeDistance\(vrl_Object)_S 80 _t
(*obj1,)_S 80 _t
(vrl_Object)_S 80 _t
(*obj2\);)_S /Times-RomanR 600 _ff
1200 10091 _m
(The)_S 67 _t
(shape)_S 67 _t
(and)_S 67 _t
(surface)_S 67 _t
(map)_S 67 _t
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(an)_S 67 _t
(object)_S 67 _t
(can)_S 67 _t
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(altered)_S 67 _t
(at)_S 67 _t
(any)_S 67 _t
(time,)_S 67 _t
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(often)_S 67 _t
(as)_S 67 _t
(needed,)_S 1200 9858 _m
(using)_S 67 _t
(the)_S 67 _t
(following)_S 67 _t
(routines:)_S 1800 9446 _m
/CourierR 400 _ff
(void)_S 80 _t
(vrl_ObjectSetShape\(vrl_Object)_S 80 _t
(*object,)_S 80 _t
(vrl_Shape)_S 80 _t
(*shape\);)_S 1800 9313 _m
(vrl_Shape)_S 80 _t
(*vrl_ObjectGetShape\(vrl_Object)_S 80 _t
(*object\);)_S 1800 9047 _m
(void)_S 80 _t
(vrl_ObjectSetSurfacemap\(vrl_Object)_S 80 _t
(*object,)_S 80 _t
(vrl_Surfacemap)_S 80 _t
(*map\);)_S 1800 8914 _m
(vrl_Surfacemap)_S 80 _t
(*vrl_ObjectGetSurfacemap\(vrl_Object)_S 80 _t
(*object\);)_S /Times-RomanR 600 _ff
1200 8494 _m
(Objects)_S 67 _t
(can)_S 67 _t
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(flagged)_S 67 _t
(as)_S 67 _t
(invisible)_S 67 _t
(\(in)_S 67 _t
(which)_S 67 _t
(case)_S 67 _t
(they're)_S 67 _t
(not)_S 67 _t
(drawn\))_S 67 _t
(or)_S 67 _t
(highlighted)_S 67 _t
(\(in)_S 67 _t
(which)_S 1200 8261 _m
(case)_S 67 _t
(they're)_S 67 _t
(drawn)_S 67 _t
(with)_S 67 _t
(a)_S 67 _t
(bright)_S 67 _t
(outline\).)_S 134 _t
(They)_S 67 _t
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(also)_S 67 _t
(have)_S 67 _t
(a)_S 67 _t
("layer")_S 67 _t
(property,)_S 67 _t
(and)_S 1200 8028 _m
(individual)_S 67 _t
(layers)_S 67 _t
(can)_S 67 _t
(be)_S 67 _t
(made)_S 67 _t
(visible)_S 67 _t
(or)_S 67 _t
(invisible,)_S 67 _t
(as)_S 67 _t
(described)_S 67 _t
(later)_S 67 _t
(in)_S 67 _t
(the)_S 67 _t
(section)_S 67 _t
(on)_S 67 _t
(Layers.)_S 67 _t
1200 7795 _m
(Note)_S 67 _t
(that)_S 67 _t
(layer)_S 67 _t
(zero)_S 67 _t
(is)_S 67 _t
(always)_S 67 _t
(visible;)_S 67 _t
(in)_S 67 _t
(effect,)_S 67 _t
(an)_S 67 _t
(object)_S 67 _t
(whose)_S 67 _t
(layer)_S 67 _t
(is)_S 67 _t
(zero)_S 67 _t
(will)_S 67 _t
(appear)_S 67 _t
(on)_S 1200 7562 _m
(all)_S 67 _t
(layers.)_S 134 _t
(The)_S 67 _t
(following)_S 67 _t
(routines)_S 67 _t
(are)_S 67 _t
(used)_S 67 _t
(to)_S 67 _t
(set,)_S 67 _t
(query)_S 67 _t
(and)_S 67 _t
(toggle)_S 67 _t
(those)_S 67 _t
(values:)_S 1800 7150 _m
/CourierR 400 _ff
(void)_S 80 _t
(vrl_ObjectSetVisibility\(vrl_Object)_S 80 _t
(*object,)_S 80 _t
(int)_S 80 _t
(vis\);)_S 1800 7017 _m
(int)_S 80 _t
(vrl_ObjectGetVisibility\(vrl_Object)_S 80 _t
(*object\);)_S 1800 6884 _m
(void)_S 80 _t
(vrl_ObjectToggleVisibility\(vrl_Object)_S 80 _t
(*object\);)_S 1800 6618 _m
(void)_S 80 _t
(vrl_ObjectSetHighlight\(vrl_Object)_S 80 _t
(*object,)_S 80 _t
(highlight\);)_S 1800 6485 _m
(int)_S 80 _t
(vrl_ObjectGetHighlight\(vrl_Object)_S 80 _t
(*object\);)_S 1800 6352 _m
(void)_S 80 _t
(vrl_ObjectToggleHighlight\(vrl_Object)_S 80 _t
(*object\);)_S 1800 6086 _m
(void)_S 80 _t
(vrl_ObjectSetLayer\(vrl_Object)_S 80 _t
(*object,)_S 80 _t
(int)_S 80 _t
(layer\);)_S 1800 5953 _m
(int)_S 80 _t
(vrl_ObjectGetLayer\(vrl_Object)_S 80 _t
(*object\);)_S /Times-RomanR 600 _ff
1200 5533 _m
(AVRIL)_S 67 _t
(will)_S 67 _t
(normally)_S 67 _t
(select)_S 67 _t
(a)_S 67 _t
(level)_S 67 _t
(of)_S 67 _t
(detail)_S 67 _t
(for)_S 67 _t
(an)_S 67 _t
(object)_S 67 _t
(automatically;)_S 67 _t
(however,)_S 67 _t
(you)_S 67 _t
(can)_S 1200 5300 _m
(override)_S 67 _t
(this)_S 67 _t
(mechanism)_S 67 _t
(on)_S 67 _t
(an)_S 67 _t
(object-by-object)_S 67 _t
(basis)_S 67 _t
(using)_S 67 _t
(two)_S 67 _t
(routines)_S 67 _t
(to)_S 67 _t
(set)_S 67 _t
(and)_S 67 _t
(get)_S 67 _t
(the)_S 1200 5067 _m
(current)_S 67 _t
("forced")_S 67 _t
(rep)_S 67 _t
(for)_S 67 _t
(an)_S 67 _t
(object:)_S 1800 4655 _m
/CourierR 400 _ff
(void)_S 80 _t
(vrl_ObjectSetRep\(vrl_Object)_S 80 _t
(*object,)_S 80 _t
(vrl_Rep)_S 80 _t
(*rep\);)_S 1800 4522 _m
(vrl_Rep)_S 80 _t
(*vrl_ObjectGetRep\(vrl_Object)_S 80 _t
(*object\);)_S /Times-RomanR 600 _ff
1200 4102 _m
(If)_S 67 _t
(you)_S 67 _t
(want)_S 67 _t
(automatic)_S 67 _t
(representation)_S 67 _t
(selection)_S 67 _t
(to)_S 67 _t
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(re-enabled)_S 67 _t
(for)_S 67 _t
(the)_S 67 _t
(object,)_S 67 _t
(just)_S 67 _t
(use)_S 1200 3869 _m
(vrl_ObjectSetRep\(obj,)_S 67 _t
(NULL\).)_S 1200 3403 _m
(Whenever)_S 67 _t
(an)_S 67 _t
(object)_S 67 _t
(moves,)_S 67 _t
(all)_S 67 _t
(the)_S 67 _t
(objects)_S 67 _t
("descended")_S 67 _t
(from)_S 67 _t
(that)_S 67 _t
(object)_S 67 _t
(must)_S 67 _t
(be)_S 67 _t
(updated.)_S 67 _t
1200 3170 _m
(The)_S 67 _t
(following)_S 67 _t
(function)_S 67 _t
(will)_S 67 _t
(update)_S 67 _t
(the)_S 67 _t
(object)_S 67 _t
(and)_S 67 _t
(all)_S 67 _t
(its)_S 67 _t
(descendants;)_S 67 _t
(you)_S 67 _t
(should)_S 67 _t
(generally)_S 1200 2937 _m
(only)_S 67 _t
(call)_S 67 _t
(this)_S 67 _t
(once)_S 67 _t
(per)_S 67 _t
(frame,)_S 67 _t
(on)_S 67 _t
(the)_S 67 _t
(object)_S 67 _t
(tree)_S 67 _t
(for)_S 67 _t
(the)_S 67 _t
(current)_S 67 _t
(world:)_S 1800 2525 _m
/CourierR 400 _ff
(vrl_Object)_S 80 _t
(*vrl_ObjectUpdate\(vrl_Object)_S 80 _t
(*object\);)_S /Times-RomanR 600 _ff
1200 2105 _m
(The)_S 67 _t
(macro)_S 67 _t
(vrl_WorldUpdate\(\))_S 67 _t
(can)_S 67 _t
(be)_S 67 _t
(used)_S 67 _t
(to)_S 67 _t
(do)_S 67 _t
(this)_S 67 _t
(more)_S 67 _t
(concisely.)_S 8800 1255 _m
(31)_S _ep
_bp /Times-RomanR 600 _ff
0 13200 10200 _ornt
/_r { sflg {/_t {0 rmoveto}bdef /ron false def}
{ /_S /show load def /_t {0 rmoveto}bdef /ron false def}ifelse
}bdef
1800 11855 _m
(A)_S 67 _t
(vrl_Object)_S 67 _t
(can)_S 67 _t
(have)_S 67 _t
(several)_S 67 _t
(other)_S 67 _t
(properties)_S 67 _t
(associated)_S 67 _t
(with)_S 67 _t
(it.)_S 134 _t
(These)_S 67 _t
(include)_S 67 _t
(a)_S 1200 11622 _m
(name,)_S 67 _t
(a)_S 67 _t
(function,)_S 67 _t
(and)_S 67 _t
(some)_S 67 _t
(application-specific)_S 67 _t
(data.)_S 134 _t
(The)_S 67 _t
(function)_S 67 _t
(associated)_S 67 _t
(with)_S 67 _t
(an)_S 67 _t
(object)_S 1200 11389 _m
(gets)_S 67 _t
(called)_S 67 _t
(whenever)_S 67 _t
(the)_S 67 _t
(object)_S 67 _t
(is)_S 67 _t
(processed)_S 67 _t
(during)_S 67 _t
(the)_S 67 _t
(tree-walking)_S 67 _t
(that)_S 67 _t
(vrl_ObjectUpdate\(\))_S 1200 11156 _m
(performs.)_S 134 _t
(The)_S 67 _t
(following)_S 67 _t
(routines)_S 67 _t
(allow)_S 67 _t
(you)_S 67 _t
(to)_S 67 _t
(get)_S 67 _t
(and)_S 67 _t
(set)_S 67 _t
(these)_S 67 _t
(additional)_S 67 _t
(properties:)_S 1800 10744 _m
/CourierR 400 _ff
(void)_S 80 _t
(vrl_ObjectSetName\(vrl_Object)_S 80 _t
(*obj,)_S 80 _t
(char)_S 80 _t
(*str\);)_S 1800 10611 _m
(char)_S 80 _t
(*vrl_ObjectGetName\(vrl_Object)_S 80 _t
(*obj\);)_S 1800 10478 _m
(void)_S 80 _t
(vrl_ObjectSetFunction\(vrl_Object)_S 80 _t
(*obj,)_S 80 _t
(int)_S 80 _t
(\(*fn\)\(vrl_Object)_S 80 _t
(*\)\);)_S 1800 10345 _m
(void)_S 80 _t
(*vrl_ObjectGetFunction\(vrl_Object)_S 80 _t
(*obj\);)_S 1800 10212 _m
(void)_S 80 _t
(vrl_ObjectSetApplicationData\(vrl_Object)_S 80 _t
(*obj,)_S 80 _t
(void)_S 80 _t
(*data\);)_S 1800 10079 _m
(void)_S 80 _t
(*vrl_ObjectGetApplicationData\(vrl_Object)_S 80 _t
(*obj\);)_S /Times-RomanR 600 _ff
1200 9629 _m
/Times-BoldR 720 _ff
(Shapes)_S 1920 9629 _m
/Times-RomanR 600 _ff
1800 9153 _m
(As)_S 67 _t
(described)_S 67 _t
(earlier,)_S 67 _t
(AVRIL)_S 67 _t
(keeps)_S 67 _t
(shape)_S 67 _t
(information)_S 67 _t
(separate)_S 67 _t
(from)_S 67 _t
(object)_S 1200 8920 _m
(descriptions,)_S 67 _t
(so)_S 67 _t
(that)_S 67 _t
(shapes)_S 67 _t
(can)_S 67 _t
(be)_S 67 _t
(re-used)_S 67 _t
(by)_S 67 _t
(multiple)_S 67 _t
(objects.)_S 134 _t
(Shapes)_S 67 _t
(\(entities)_S 67 _t
(of)_S 67 _t
(type)_S 1200 8687 _m
(vrl_Shape\))_S 67 _t
(are)_S 67 _t
(generally)_S 67 _t
(read)_S 67 _t
(from)_S 67 _t
(PLG)_S 67 _t
(files)_S 67 _t
(using)_S 67 _t
(the)_S 67 _t
(vrl_ReadPLG\(\))_S 67 _t
(function,)_S 67 _t
(described)_S 1200 8454 _m
(later.)_S 134 _t
(You)_S 67 _t
(can)_S 67 _t
(also)_S 67 _t
(create)_S 67 _t
(them)_S 67 _t
(using)_S 67 _t
(the)_S 67 _t
(vrl_Primitive)_S 67 _t
(family)_S 67 _t
(of)_S 67 _t
(functions,)_S 67 _t
(also)_S 67 _t
(described)_S 1200 8221 _m
(later)_S 67 _t
(in)_S 67 _t
(this)_S 67 _t
(document.)_S 1800 7755 _m
(You)_S 67 _t
(can)_S 67 _t
(modify)_S 67 _t
(a)_S 67 _t
(shape)_S 67 _t
(after)_S 67 _t
(it's)_S 67 _t
(been)_S 67 _t
(loaded;)_S 67 _t
(bear)_S 67 _t
(in)_S 67 _t
(mind)_S 67 _t
(that)_S 67 _t
(any)_S 67 _t
(changes)_S 67 _t
(you)_S 1200 7522 _m
(make)_S 67 _t
(to)_S 67 _t
(a)_S 67 _t
(shape)_S 67 _t
(will)_S 67 _t
(affect)_S 67 _t
(all)_S 67 _t
(objects)_S 67 _t
(using)_S 67 _t
(that)_S 67 _t
(shape!)_S 134 _t
(To)_S 67 _t
(re-scale)_S 67 _t
(a)_S 67 _t
(shape,)_S 67 _t
(or)_S 67 _t
(shift)_S 67 _t
(all)_S 67 _t
(the)_S 1200 7289 _m
(vertices)_S 67 _t
(in)_S 67 _t
(the)_S 67 _t
(shape)_S 67 _t
(relative)_S 67 _t
(to)_S 67 _t
(the)_S 67 _t
(shape's)_S 67 _t
(origin)_S 67 _t
(point,)_S 67 _t
(use)_S 67 _t
(the)_S 67 _t
(following)_S 67 _t
(functions:)_S 1800 6877 _m
/CourierR 400 _ff
(void)_S 80 _t
(vrl_ShapeRescale\(vrl_Shape)_S 80 _t
(*shape,)_S 80 _t
(float)_S 80 _t
(sx,)_S 80 _t
(float)_S 80 _t
(sy,)_S 80 _t
(float)_S 80 _t
(sz\);)_S 1800 6744 _m
(void)_S 80 _t
(vrl_ShapeOffset\(vrl_Shape)_S 80 _t
(*shape,)_S 80 _t
(vrl_Scalar)_S 80 _t
(tx,)_S 80 _t
(vrl_Scalar)_S 80 _t
(ty,)_S 80 _t
(vrl_Scalar)_S 80 _t
(tz\);)_S 1200 6424 _m
/Times-RomanR 600 _ff
(After)_S 67 _t
(making)_S 67 _t
(changes)_S 67 _t
(to)_S 67 _t
(a)_S 67 _t
(shape)_S 67 _t
(\(or)_S 67 _t
(any)_S 67 _t
(representation)_S 67 _t
(within)_S 67 _t
(a)_S 67 _t
(shape\),)_S 67 _t
(you)_S 67 _t
(should)_S 67 _t
(call)_S 1200 6191 _m
(vrl_ShapeUpdate\(\))_S 67 _t
(to)_S 67 _t
(recompute)_S 67 _t
(the)_S 67 _t
(shape's)_S 67 _t
(bounds.)_S 1800 5779 _m
/CourierR 400 _ff
(void)_S 80 _t
(vrl_ShapeUpdate\(vrl_Shape)_S 80 _t
(*shape\);)_S /Times-RomanR 600 _ff
1200 5359 _m
(Shapes)_S 67 _t
(can)_S 67 _t
(have)_S 67 _t
(a)_S 67 _t
(default)_S 67 _t
(surface)_S 67 _t
(map,)_S 67 _t
(which)_S 67 _t
(is)_S 67 _t
(used)_S 67 _t
(for)_S 67 _t
(objects)_S 67 _t
(that)_S 67 _t
(don't)_S 67 _t
(set)_S 67 _t
(one)_S 67 _t
(of)_S 67 _t
(their)_S 1200 5126 _m
(own.)_S 134 _t
(A)_S 67 _t
(pointer)_S 67 _t
(to)_S 67 _t
(a)_S 67 _t
(shape's)_S 67 _t
(default)_S 67 _t
(surface)_S 67 _t
(map)_S 67 _t
(can)_S 67 _t
(be)_S 67 _t
(obtained,)_S 67 _t
(or)_S 67 _t
(a)_S 67 _t
(pointer)_S 67 _t
(to)_S 67 _t
(a)_S 67 _t
(new)_S 1200 4893 _m
(surfacemap)_S 67 _t
(for)_S 67 _t
(a)_S 67 _t
(shape)_S 67 _t
(set,)_S 67 _t
(by)_S 67 _t
(calling)_S 67 _t
(the)_S 67 _t
(functions)_S 1800 4481 _m
/CourierR 400 _ff
(vrl_Surfacemap)_S 80 _t
(*vrl_ShapeGetSurfacemap\(vrl_Shape)_S 80 _t
(*shape\);)_S 1800 4348 _m
(void)_S 80 _t
(vrl_ShapeSetSurfacemap\(vrl_Shape)_S 80 _t
(*shape,)_S 80 _t
(vrl_Surfacemap)_S 80 _t
(*map\);)_S /Times-RomanR 600 _ff
1200 3928 _m
(To)_S 67 _t
(get)_S 67 _t
(a)_S 67 _t
(pointer)_S 67 _t
(to)_S 67 _t
(the)_S 67 _t
(representation)_S 67 _t
(of)_S 67 _t
(a)_S 67 _t
(shape)_S 67 _t
(that)_S 67 _t
(will)_S 67 _t
(be)_S 67 _t
(used)_S 67 _t
(at)_S 67 _t
(a)_S 67 _t
(given)_S 67 _t
(on-screen)_S 67 _t
(size,)_S 1200 3695 _m
(use)_S 67 _t
(following)_S 67 _t
(function:)_S /CourierR 400 _ff
1800 3383 _m
(vrl_Rep)_S 80 _t
(*vrl_ShapeGetRep\(vrl_Shape)_S 80 _t
(*shape,)_S 80 _t
(vrl_Scalar)_S 80 _t
(size\);)_S /Times-RomanR 600 _ff
1200 2963 _m
(To)_S 67 _t
(add)_S 67 _t
(an)_S 67 _t
(additional)_S 67 _t
(representation)_S 67 _t
(to)_S 67 _t
(an)_S 67 _t
(existing)_S 67 _t
(shape,)_S 67 _t
(use)_S 67 _t
(the)_S 67 _t
(function)_S /CourierR 400 _ff
1800 2651 _m
(void)_S 80 _t
(vrl_ShapeAddRep\(vrl_Shape)_S 80 _t
(*shape,)_S 80 _t
(vrl_Rep)_S 80 _t
(*rep,)_S 80 _t
(vrl_Scalar)_S 80 _t
(size\);)_S /Times-RomanR 600 _ff
1200 2229 _m
(The)_S 67 _t
1578 2229 _m
/Times-ItalicR 600 _ff
(size)_S 1878 2229 _m
/Times-RomanR 600 _ff
67 _t
(parameter)_S 67 _t
(gives)_S 67 _t
(the)_S 67 _t
(apparent)_S 67 _t
(on-screen)_S 67 _t
(size)_S 67 _t
(in)_S 67 _t
(pixels)_S 67 _t
(at)_S 67 _t
(which)_S 67 _t
(the)_S 67 _t
(shape)_S 67 _t
(should)_S 67 _t
(be)_S 1200 1996 _m
(used.)_S 134 _t
(You)_S 67 _t
(can)_S 67 _t
(find)_S 67 _t
(out)_S 67 _t
(how)_S 67 _t
(many)_S 67 _t
(representations)_S 67 _t
(a)_S 67 _t
(shape)_S 67 _t
(has)_S 67 _t
(using)_S 67 _t
(the)_S 67 _t
(function)_S 8800 1255 _m
(32)_S _ep
_bp /CourierR 400 _ff
0 13200 10200 _ornt
/_r { sflg {/_t {0 rmoveto}bdef /ron false def}
{ /_S /show load def /_t {0 rmoveto}bdef /ron false def}ifelse
}bdef
1800 11909 _m
(int)_S 80 _t
(vrl_ShapeCountReps\(vrl_Shape)_S 80 _t
(*shape\);)_S /Times-RomanR 600 _ff
1200 11489 _m
(A)_S 67 _t
(shape's)_S 67 _t
(name)_S 67 _t
(can)_S 67 _t
(be)_S 67 _t
(set)_S 67 _t
(or)_S 67 _t
(obtained)_S 67 _t
(using)_S 67 _t
(the)_S 67 _t
(functions)_S 1800 11077 _m
/CourierR 400 _ff
(void)_S 80 _t
(vrl_ShapeSetName\(vrl_Shape)_S 80 _t
(*shape,)_S 80 _t
(char)_S 80 _t
(*str\);)_S 1800 10944 _m
(char)_S 80 _t
(*vrl_ShapeGetNext\(vrl_Shape)_S 80 _t
(*shape\);)_S /Times-RomanR 600 _ff
1200 10524 _m
(Shapes)_S 67 _t
(are)_S 67 _t
(kept)_S 67 _t
(internally)_S 67 _t
(in)_S 67 _t
(a)_S 67 _t
(singly-linked)_S 67 _t
(list;)_S 67 _t
(if)_S 67 _t
(you)_S 67 _t
(need)_S 67 _t
(to)_S 67 _t
(iterate)_S 67 _t
(through)_S 67 _t
(the)_S 67 _t
(list,)_S 67 _t
(the)_S 1200 10291 _m
(following)_S 67 _t
(two)_S 67 _t
(functions)_S 67 _t
(can)_S 67 _t
(be)_S 67 _t
(used)_S /CourierR 400 _ff
1800 9979 _m
(vrl_Shape)_S 80 _t
(*vrl_ShapeGetList\(void\);)_S 1800 9846 _m
(vrl_Shape)_S 80 _t
(*vrl_ShapeGetNext\(vrl_Shape)_S 80 _t
(*shape\))_S /Times-RomanR 600 _ff
1200 9426 _m
(You)_S 67 _t
(can)_S 67 _t
(also)_S 67 _t
(locate)_S 67 _t
(a)_S 67 _t
(shape)_S 67 _t
(by)_S 67 _t
(name)_S 67 _t
(using)_S /CourierR 400 _ff
1800 9114 _m
(vrl_Shape)_S 80 _t
(*vrl_ShapeFind\(char)_S 80 _t
(*name\);)_S /Times-RomanR 600 _ff
1200 8664 _m
/Times-BoldR 720 _ff
(Representations)_S 2853 8664 _m
/Times-RomanR 600 _ff
1800 8188 _m
(A)_S 67 _t
(shape)_S 67 _t
(can)_S 67 _t
(have)_S 67 _t
(any)_S 67 _t
(number)_S 67 _t
(of)_S 67 _t
(representations,)_S 67 _t
(at)_S 67 _t
(various)_S 67 _t
(levels)_S 67 _t
(of)_S 67 _t
(detail.)_S 134 _t
(Each)_S 1200 7955 _m
(representation)_S 67 _t
(\(vrl_Rep\))_S 67 _t
(has)_S 67 _t
(a)_S 67 _t
(set)_S 67 _t
(of)_S 67 _t
(vertices)_S 67 _t
(\(each)_S 67 _t
(of)_S 67 _t
(type)_S 67 _t
(vrl_Vector\))_S 67 _t
(and)_S 67 _t
(a)_S 67 _t
(set)_S 67 _t
(of)_S 67 _t
(facets)_S 1200 7722 _m
(\(each)_S 67 _t
(of)_S 67 _t
(type)_S 67 _t
(vrl_Facet\).)_S 134 _t
(A)_S 67 _t
(representation)_S 67 _t
(can)_S 67 _t
(also)_S 67 _t
(have)_S 67 _t
(a)_S 67 _t
("sorting)_S 67 _t
(type")_S 67 _t
(field;)_S 67 _t
(this)_S 67 _t
(will)_S 67 _t
(be)_S 1200 7489 _m
(explained)_S 67 _t
(in)_S 67 _t
(more)_S 67 _t
(detail)_S 67 _t
(in)_S 67 _t
(future)_S 67 _t
(releases)_S 67 _t
(of)_S 67 _t
(this)_S 67 _t
(documentation.)_S 1800 7023 _m
(You)_S 67 _t
(can)_S 67 _t
(traverse)_S 67 _t
(the)_S 67 _t
(list)_S 67 _t
(of)_S 67 _t
(representations)_S 67 _t
(for)_S 67 _t
(a)_S 67 _t
(shape,)_S 67 _t
(calling)_S 67 _t
(a)_S 67 _t
(function)_S 67 _t
(on)_S 67 _t
(each)_S 1200 6790 _m
(representation,)_S 67 _t
(by)_S 67 _t
(using)_S 67 _t
(the)_S 67 _t
(following)_S 67 _t
(routine:)_S 1800 6378 _m
/CourierR 400 _ff
(void)_S 80 _t
(vrl_ShapeTraverseReps\(vrl_Shape)_S 80 _t
(*shape,)_S 80 _t
(int)_S 80 _t
(\(*function\(vrl_Rep)_S 80 _t
(*rep\)\)\);)_S /Times-RomanR 600 _ff
1200 5958 _m
(The)_S 67 _t
(function)_S 67 _t
(is)_S 67 _t
(once)_S 67 _t
(called)_S 67 _t
(for)_S 67 _t
(every)_S 67 _t
(representation,)_S 67 _t
(and)_S 67 _t
(is)_S 67 _t
(given)_S 67 _t

(the)_S 67 _t
(representation)_S 67 _t
(as)_S 67 _t
(a)_S 1200 5725 _m
(parameter.)_S 134 _t
(If)_S 67 _t
(the)_S 67 _t
(function)_S 67 _t
(returns)_S 67 _t
(a)_S 67 _t
(non-zero)_S 67 _t
(value,)_S 67 _t
(the)_S 67 _t
(processing)_S 67 _t
(of)_S 67 _t
(the)_S 67 _t
(representation)_S 67 _t
(list)_S 1200 5492 _m
(stops)_S 67 _t
(at)_S 67 _t
(that)_S 67 _t
(rep.)_S 1800 5026 _m
(The)_S 67 _t
(other)_S 67 _t
(approach)_S 67 _t
(is)_S 67 _t
(to)_S 67 _t
(iterate)_S 67 _t
(through)_S 67 _t
(the)_S 67 _t
(linked)_S 67 _t
(list)_S 67 _t
(of)_S 67 _t
(representations)_S 67 _t
(using)_S 67 _t
(the)_S 1200 4793 _m
(functions)_S 1800 4381 _m
/CourierR 400 _ff
(vrl_Rep)_S 80 _t
(*vrl_ShapeGetFirstRep\(vrl_Shape)_S 80 _t
(*shape\);)_S 1800 4248 _m
(vrl_Rep)_S 80 _t
(*vrl_RepGetNext\(vrl_Rep)_S 80 _t
(*rep\);)_S /Times-RomanR 600 _ff
1200 3828 _m
(You)_S 67 _t
(can)_S 67 _t
(set)_S 67 _t
(and)_S 67 _t
(get)_S 67 _t
(a)_S 67 _t
(vrl_Rep's)_S 67 _t
(sorting)_S 67 _t
(type,)_S 67 _t
(find)_S 67 _t
(out)_S 67 _t
(the)_S 67 _t
(approximate)_S 67 _t
(size)_S 67 _t
(\(in)_S 67 _t
(pixels\))_S 67 _t
(at)_S 1200 3595 _m
(which)_S 67 _t
(a)_S 67 _t
(rep)_S 67 _t
(becomes)_S 67 _t
(effective,)_S 67 _t
(as)_S 67 _t
(well)_S 67 _t
(as)_S 67 _t
(count)_S 67 _t
(the)_S 67 _t
(number)_S 67 _t
(of)_S 67 _t
(vertices)_S 67 _t
(and)_S 67 _t
(facets)_S 67 _t
(in)_S 67 _t
(a)_S 67 _t
(rep)_S 1200 3362 _m
(using)_S 67 _t
(the)_S 67 _t
(following)_S 67 _t
(functions:)_S 1800 2950 _m
/CourierR 400 _ff
(void)_S 80 _t
(vrl_RepSetSorting\(vrl_Rep)_S 80 _t
(*rep,)_S 80 _t
(int)_S 80 _t
(type\);)_S 1800 2817 _m
(int)_S 80 _t
(vrl_RepGetSorting\(vrl_Rep)_S 80 _t
(*rep\);)_S 1800 2551 _m
(int)_S 80 _t
(vrl_RepGetSize\(vrl_Rep)_S 80 _t
(*rep\);)_S 1800 2285 _m
(int)_S 80 _t
(vrl_RepCountVertices\(vrl_Rep)_S 80 _t
(*rep\);)_S 1800 2152 _m
(int)_S 80 _t
(vrl_RepCountFacets\(vrl_Rep)_S 80 _t
(*rep\);)_S 1200 1832 _m
/Times-RomanR 600 _ff
(There)_S 67 _t
(are)_S 67 _t
(also)_S 67 _t
("traversal")_S 67 _t
(functions)_S 67 _t
(for)_S 67 _t
(vertices)_S 67 _t
(and)_S 67 _t
(facets:)_S 8800 1255 _m
(33)_S _ep
_bp /CourierR 400 _ff
0 13200 10200 _ornt
/_r { sflg {/_t {0 rmoveto}bdef /ron false def}
{ /_S /show load def /_t {0 rmoveto}bdef /ron false def}ifelse
}bdef
1800 11909 _m
(void)_S 80 _t
(vrl_RepTraverseVertices\(vrl_Rep)_S 80 _t
(*rep,)_S 80 _t
(int)_S 80 _t
(\(*function\)\(vrl_Vector)_S 80 _t
(*vertex\)\);)_S 1800 11776 _m
(void)_S 80 _t
(vrl_RepTraverseFacets\(vrl_Rep)_S 80 _t
(*rep,)_S 80 _t
(int)_S 80 _t
(\(*function\)\(vrl_Facet)_S 80 _t
(*facet\)\);)_S /Times-RomanR 600 _ff
1200 11356 _m
(If)_S 67 _t
(you)_S 67 _t
(need)_S 67 _t
(to)_S 67 _t
(get)_S 67 _t
(or)_S 67 _t
(set)_S 67 _t
(the)_S 67 _t
(values)_S 67 _t
(of)_S 67 _t
(a)_S 67 _t
(vertex's)_S 67 _t
(coordinates,)_S 67 _t
(you)_S 67 _t
(can)_S 67 _t
(use)_S 67 _t
(the)_S 67 _t
(functions)_S 1800 10944 _m
/CourierR 400 _ff
(void)_S 80 _t
(vrl_RepGetVertex\(vrl_Rep)_S 80 _t
(*rep,)_S 80 _t
(int)_S 80 _t
(n,)_S 80 _t
(vrl_Vector)_S 80 _t
(v\);)_S 1800 10811 _m
(void)_S 80 _t
(vrl_RepSetVertex\(vrl_Rep)_S 80 _t
(*rep,)_S 80 _t
(int)_S 80 _t
(n,)_S 80 _t
(vrl_Vector)_S 80 _t
(v\);)_S /Times-RomanR 600 _ff
1200 10391 _m
(Be)_S 67 _t
(careful)_S 67 _t
(when)_S 67 _t
(using)_S 67 _t
(vrl_RepSetVertex\(\);)_S 67 _t
(it's)_S 67 _t
(easy)_S 67 _t
(to)_S 67 _t
(move)_S 67 _t
(a)_S 67 _t
(vertex)_S 67 _t
(and)_S 67 _t
(create)_S 67 _t
(non-planar)_S 1200 10158 _m
(or)_S 67 _t
(non-convex)_S 67 _t
(facets,)_S 67 _t
(which)_S 67 _t
(confuse)_S 67 _t
(the)_S 67 _t
(renderer.)_S 134 _t
(You)_S 67 _t
(can)_S 67 _t
(only)_S 67 _t
(move)_S 67 _t
(vertices)_S 67 _t
(safely)_S 67 _t
(if)_S 67 _t
(you)_S 1200 9925 _m
(know)_S 67 _t
(the)_S 67 _t
(vrl_Rep)_S 67 _t
(is)_S 67 _t
(composed)_S 67 _t
(entirely)_S 67 _t
(of)_S 67 _t
(triangles,)_S 67 _t
(since)_S 67 _t
(by)_S 67 _t
(their)_S 67 _t
(nature)_S 67 _t
(triangles)_S 67 _t
(are)_S 67 _t
(always)_S 1200 9692 _m
(planar)_S 67 _t
(and)_S 67 _t
(convex.)_S 134 _t
(In)_S 67 _t
(any)_S 67 _t
(case,)_S 67 _t
(be)_S 67 _t
(sure)_S 67 _t
(to)_S 67 _t
(call)_S 67 _t
(vrl_ShapeUpdate\(\))_S 67 _t
(after)_S 67 _t
(moving)_S 67 _t
(any)_S 67 _t
(vertices.)_S 1200 9196 _m
/Times-BoldR 720 _ff
(Facets)_S 1853 9196 _m
/Times-RomanR 600 _ff
1800 8720 _m
(AVRIL's)_S 67 _t
(terminology)_S 67 _t
(is)_S 67 _t
(slightly)_S 67 _t
(different)_S 67 _t
(from)_S 67 _t
(some)_S 67 _t
(other)_S 67 _t
(VR)_S 67 _t
(systems;)_S 67 _t
(a)_S 67 _t
("facet")_S 67 _t
(is)_S 67 _t
(a)_S 1200 8487 _m
(flat)_S 67 _t
(three-dimensional)_S 67 _t
(entity,)_S 67 _t
(whereas)_S 67 _t
(a)_S 67 _t
("polygon")_S 67 _t
(is)_S 67 _t
(a)_S 67 _t
(two)_S 67 _t
(dimensional)_S 67 _t
(area)_S 67 _t
(on)_S 67 _t
(the)_S 67 _t
(screen.)_S 67 _t
1200 8254 _m
(The)_S 67 _t
(job)_S 67 _t
(of)_S 67 _t
(the)_S 67 _t
(graphics)_S 67 _t
(pipeline)_S 67 _t
(is)_S 67 _t
(to)_S 67 _t
(turn)_S 67 _t
(facets)_S 67 _t
(into)_S 67 _t
(polygons.)_S 1800 7788 _m
(Facets)_S 67 _t
(in)_S 67 _t
(AVRIL)_S 67 _t
(have)_S 67 _t
(an)_S 67 _t
(array)_S 67 _t
(of)_S 67 _t
(integers)_S 67 _t
(that)_S 67 _t
(specify)_S 67 _t
(which)_S 67 _t
(vertices)_S 67 _t
(in)_S 67 _t
(the)_S 1200 7555 _m
(representation)_S 67 _t
(should)_S 67 _t
(be)_S 67 _t
(connected)_S 67 _t
(\(and)_S 67 _t
(in)_S 67 _t
(what)_S 67 _t
(sequence\))_S 67 _t
(to)_S 67 _t
(form)_S 67 _t
(the)_S 67 _t
(outline)_S 67 _t
(of)_S 67 _t
(the)_S 67 _t
(facet.)_S 67 _t
1200 7322 _m
(Facets)_S 67 _t
(also)_S 67 _t
(have)_S 67 _t
(an)_S 67 _t
(index)_S 67 _t
(into)_S 67 _t
(the)_S 67 _t
(surface)_S 67 _t
(map)_S 67 _t
(for)_S 67 _t
(an)_S 67 _t
(object,)_S 67 _t
(to)_S 67 _t
(determine)_S 67 _t
(what)_S 67 _t
(the)_S 67 _t
(surface)_S 1200 7089 _m
(properties)_S 67 _t
(of)_S 67 _t
(the)_S 67 _t
(facet)_S 67 _t
(should)_S 67 _t
(be.)_S 134 _t
(They)_S 67 _t
(also)_S 67 _t
(have)_S 67 _t
(a)_S 67 _t
(bit)_S 67 _t
(that)_S 67 _t
(indicates)_S 67 _t
(whether)_S 67 _t
(or)_S 67 _t
(not)_S 67 _t
(the)_S 67 _t
(facet)_S 1200 6856 _m
(should)_S 67 _t
(be)_S 67 _t
(highlighted.)_S 1800 6390 _m
(The)_S 67 _t
(surface)_S 67 _t
(index)_S 67 _t
(of)_S 67 _t
(any)_S 67 _t
(facet)_S 67 _t
(can)_S 67 _t
(be)_S 67 _t
(set)_S 67 _t
(or)_S 67 _t
(queried)_S 67 _t
(at)_S 67 _t
(any)_S 67 _t
(time)_S 67 _t
(using)_S 67 _t
(the)_S 67 _t
(following)_S 1200 6157 _m
(two)_S 67 _t
(routines:)_S 1800 5745 _m
/CourierR 400 _ff
(void)_S 80 _t
(vrl_FacetSetSurfnum\(vrl_Facet)_S 80 _t
(*facet,)_S 80 _t
(int)_S 80 _t
(n\);)_S 1800 5612 _m
(int)_S 80 _t
(void)_S 80 _t
(vrl_FacetGetSurfnum\(vrl_Facet)_S 80 _t
(*facet\);)_S /Times-RomanR 600 _ff
1200 5192 _m
(The)_S 67 _t
(highlighting)_S 67 _t
(of)_S 67 _t
(the)_S 67 _t
(facet)_S 67 _t
(can)_S 67 _t
(be)_S 67 _t
(set,)_S 67 _t
(queried)_S 67 _t
(or)_S 67 _t
(toggled)_S 67 _t
(using)_S 67 _t
(the)_S 67 _t
(following)_S 67 _t
(routines:)_S 1800 4780 _m
/CourierR 400 _ff
(void)_S 80 _t
(vrl_FacetSetHighlight\(vrl_Facet)_S 80 _t
(*facet,)_S 80 _t
(int)_S 80 _t
(high\);)_S 1800 4647 _m
(int)_S 80 _t
(vrl_FacetGetHighlight\(vrl_Facet)_S 80 _t
(*facet\);)_S 1800 4514 _m
(void)_S 80 _t
(vrl_FacetToggleHighlight\(vrl_Facet)_S 80 _t
(*facet\);)_S /Times-RomanR 600 _ff
1200 4094 _m
(The)_S 67 _t
(number)_S 67 _t
(of)_S 67 _t
(points)_S 67 _t
(in)_S 67 _t
(the)_S 67 _t
(facet,)_S 67 _t
(the)_S 67 _t
(index)_S 67 _t
(of)_S 67 _t
(any)_S 67 _t
(particular)_S 67 _t
(point,)_S 67 _t
(or)_S 67 _t
(a)_S 67 _t
(pointer)_S 67 _t
(to)_S 67 _t
(the)_S 67 _t
(vertex)_S 1200 3861 _m
(for)_S 67 _t
(a)_S 67 _t
(particular)_S 67 _t
(point,)_S 67 _t
(can)_S 67 _t
(all)_S 67 _t
(be)_S 67 _t
(obtained)_S 67 _t
(using)_S 67 _t
(these)_S 67 _t
(routines:)_S 1800 3449 _m
/CourierR 400 _ff
(int)_S 80 _t
(vrl_FacetCountPoints\(vrl_Facet)_S 80 _t
(*facet\);)_S 1800 3316 _m
(int)_S 80 _t
(vrl_FacetGetPoint\(vrl_Facet)_S 80 _t
(*facet,)_S 80 _t
(int)_S 80 _t
(n\);)_S 1800 3183 _m
(vrl_Vector)_S 80 _t
(*vrl_FacetGetVertex\(vrl_Rep)_S 80 _t
(*rep,)_S 80 _t
(vrl_Facet)_S 80 _t
(*facet,)_S 80 _t
(int)_S 80 _t
(n\);)_S 80 _t
/Times-RomanR 600 _ff
1200 2763 _m
(vrl_Facets)_S 67 _t
(can)_S 67 _t
(be)_S 67 _t
(identified)_S 67 _t
(by)_S 67 _t
(an)_S 67 _t
(ID)_S 67 _t
(number.)_S 134 _t
(The)_S 67 _t
(ID)_S 67 _t
(number)_S 67 _t
(for)_S 67 _t
(a)_S 67 _t
(vrl_Facet)_S 67 _t
(can)_S 67 _t
(be)_S 67 _t
(set)_S 67 _t
(and)_S 1200 2530 _m
(read,)_S 67 _t
(and)_S 67 _t
(a)_S 67 _t
(vrl_Facet)_S 67 _t
(with)_S 67 _t
(a)_S 67 _t
(particular)_S 67 _t
(ID)_S 67 _t
(can)_S 67 _t
(be)_S 67 _t
(found,)_S 67 _t
(using)_S 67 _t
(the)_S 67 _t
(following)_S 67 _t
(functions:)_S 1800 2118 _m
/CourierR 400 _ff
(void)_S 80 _t
(vrl_FacetSetId\(vrl_Facet)_S 80 _t
(*facet,)_S 80 _t
(unsigned)_S 80 _t
(int)_S 80 _t
(n\);)_S 1800 1985 _m
(unsigned)_S 80 _t
(int)_S 80 _t
(vrl_FacetGetId\(vrl_Facet)_S 80 _t
(*facet\);)_S 1800 1852 _m
(vrl_Facet)_S 80 _t
(*vrl_RepFindFacet\(vrl_Rep)_S 80 _t
(*rep,)_S 80 _t
(unsigned)_S 80 _t
(int)_S 80 _t
(id\);)_S /Times-RomanR 600 _ff
8800 1255 _m
(34)_S _ep
_bp /Times-RomanR 600 _ff
0 13200 10200 _ornt
/_r { sflg {/_t {0 rmoveto}bdef /ron false def}
{ /_S /show load def /_t {0 rmoveto}bdef /ron false def}ifelse
}bdef
1200 11825 _m
/Times-BoldR 720 _ff
(Surfaces)_S 2080 11825 _m
/Times-RomanR 600 _ff
1800 11349 _m
(AVRIL)_S 67 _t
(surfaces)_S 67 _t
(are)_S 67 _t
(designed)_S 67 _t
(for)_S 67 _t
(expandability.)_S 134 _t
(At)_S 67 _t
(the)_S 67 _t
(moment,)_S 67 _t
(each)_S 67 _t
(vrl_Surface)_S 1200 11116 _m
(consists)_S 67 _t
(of)_S 67 _t
(a)_S 67 _t
(type,)_S 67 _t
(a)_S 67 _t
(hue)_S 67 _t
(and)_S 67 _t
(a)_S 67 _t
(brightness.)_S 134 _t
(The)_S 67 _t
(types)_S 67 _t
(are)_S 67 _t
(SURF_SIMPLE)_S 67 _t
(\(no)_S 67 _t
(lighting,)_S 67 _t
(just)_S 67 _t
(a)_S 1200 10883 _m
(fixed)_S 67 _t
(color\),)_S 67 _t
(SURF_FLAT)_S 67 _t
(\(for)_S 67 _t
(flat)_S 67 _t
(shading\),)_S 67 _t
(SURF_METAL)_S 67 _t
(\(for)_S 67 _t
(a)_S 67 _t
(pseudo-metallic)_S 67 _t
(effect\))_S 1200 10650 _m
(and)_S 67 _t
(SURF_GLASS)_S 67 _t
(\(for)_S 67 _t
(a)_S 67 _t
(partially)_S 67 _t
(transparent)_S 67 _t
(effect\).)_S 134 _t
(Surfaces)_S 67 _t
(are)_S 67 _t
(initialized)_S 67 _t
(and)_S 67 _t
(modified)_S 1200 10417 _m
(using)_S 67 _t
(the)_S 67 _t
(following)_S 67 _t
(routines:)_S 1800 10005 _m
/CourierR 400 _ff
(vrl_Surface)_S 80 _t
(*vrl_SurfaceInit\(vrl_Surface)_S 80 _t
(*surf,)_S 80 _t
(unsigned)_S 80 _t
(char)_S 80 _t
(hue\);)_S 1800 9872 _m
(vrl_Surface)_S 80 _t
(*vrl_SurfaceCreate\(unsigned)_S 80 _t
(char)_S 80 _t
(hue\);)_S 1800 9606 _m
(void)_S 80 _t
(vrl_SurfaceSetType\(vrl_Surface)_S 80 _t
(*surf,)_S 80 _t
(vrl_LightingType)_S 80 _t
(type\);)_S 1800 9473 _m
(vrl_LightingType)_S 80 _t
(vrl_SurfaceGetType\(vrl_Surface)_S 80 _t
(*surf\);)_S 1800 9207 _m
(void)_S 80 _t
(vrl_SurfaceSetHue\(vrl_Surface)_S 80 _t
(*surf,)_S 80 _t
(unsigned)_S 80 _t
(char)_S 80 _t
(h\);)_S 1800 9074 _m
(unsigned)_S 80 _t
(char)_S 80 _t
(vrl_SurfaceGetHue\(vrl_Surface)_S 80 _t
(*surf\);)_S 1800 8808 _m
(void)_S 80 _t
(vrl_SurfaceSetBrightness\(vrl_Surface)_S 80 _t
(*surf,)_S 80 _t
(unsigned)_S 80 _t
(char)_S 80 _t
(b\);)_S 1800 8675 _m
(unsigned)_S 80 _t
(char)_S 80 _t
(vrl_SurfaceGetBrightness\(vrl_Surface)_S 80 _t
(*surf\);)_S /Times-RomanR 600 _ff
1200 8255 _m
(The)_S 67 _t
(hue)_S 67 _t
(and)_S 67 _t
(brightness)_S 67 _t
(values)_S 67 _t
(are)_S 67 _t
(8-bit)_S 67 _t
(unsigned)_S 67 _t
(quantities;)_S 67 _t
(the)_S 67 _t
(maximum)_S 67 _t
(brightness)_S 67 _t
(value)_S 67 _t
(is)_S 1200 8022 _m
(therefore)_S 67 _t
(255.)_S 1800 7556 _m
(For)_S 67 _t
(backwards)_S 67 _t
(compatibility)_S 67 _t
(with)_S 67 _t
(REND386,)_S 67 _t
(AVRIL)_S 67 _t
(includes)_S 67 _t
(functions)_S 67 _t
(to)_S 67 _t
(convert)_S 67 _t
(a)_S 1200 7323 _m
(16-bit)_S 67 _t
(REND386)_S 67 _t
(surface)_S 67 _t
(descriptor)_S 67 _t
(into)_S 67 _t
(a)_S 67 _t
(vrl_Surface,)_S 67 _t
(and)_S 67 _t
(vice-versa:)_S 1800 6911 _m
/CourierR 400 _ff
(vrl_Surface)_S 80 _t
(*vrl_SurfaceFromDesc\(unsigned)_S 80 _t
(int)_S 80 _t
(desc,)_S 80 _t
(vrl_Surface)_S 80 _t
(*surf\);)_S 1800 6778 _m
(unsigned)_S 80 _t
(int)_S 80 _t
(vrl_SurfaceToDesc\(vrl_Surface)_S 80 _t
(*surf\);)_S /Times-RomanR 600 _ff
1200 6328 _m
/Times-BoldR 720 _ff
(Surface)_S 80 _t
(Maps)_S 2640 6328 _m
/Times-RomanR 600 _ff
1800 5852 _m
(Surface)_S 67 _t
(maps)_S 67 _t
(contain)_S 67 _t
(an)_S 67 _t
(array)_S 67 _t
(of)_S 67 _t
(pointers)_S 67 _t
(to)_S 67 _t
(surfaces;)_S 67 _t
(you)_S 67 _t
(can)_S 67 _t
(create)_S 67 _t
(a)_S 67 _t
(surface)_S 67 _t
(map)_S 1200 5619 _m
(with)_S 67 _t
(room)_S 67 _t
(for)_S 67 _t
(a)_S 67 _t
(particular)_S 67 _t
(number)_S 67 _t
(of)_S 67 _t
(entries,)_S 67 _t
(and)_S 67 _t
(access)_S 67 _t
(entries)_S 67 _t
(within)_S 67 _t
(a)_S 67 _t
(map,)_S 67 _t
(using)_S 67 _t
(the)_S 1200 5386 _m
(following)_S 67 _t
(routines:)_S 1800 4974 _m
/CourierR 400 _ff
(vrl_Surfacemap)_S 80 _t
(*vrl_SurfacemapCreate\(int)_S 80 _t
(n\);)_S 1800 4841 _m
(vrl_Surface)_S 80 _t
(*vrl_SurfacemapGetSurface\(vrl_Surfacemap)_S 80 _t
(*map,)_S 80 _t
(int)_S 80 _t
(surfnum\);)_S 1800 4708 _m
(vrl_Surface)_S 80 _t
(*vrl_SurfacemapSetSurface\(vrl_Surfacemap)_S 80 _t
(*map,)_S 80 _t
(int)_S 80 _t
(surfnum,)_S 2400 4575 _m
(vrl_Surface)_S 80 _t
(*surface\);)_S /Times-RomanR 600 _ff
1200 4125 _m
/Times-BoldR 720 _ff
(Lights)_S 1854 4125 _m
/Times-RomanR 600 _ff
1800 3649 _m
(Lights)_S 67 _t
(in)_S 67 _t
(AVRIL)_S 67 _t
(have)_S 67 _t
(a)_S 67 _t
(number)_S 67 _t
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(properties;)_S 67 _t
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(an)_S 1200 3416 _m
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(they)_S 67 _t
(can)_S 67 _t
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(associated)_S 67 _t
(with)_S 67 _t
(an)_S 67 _t
(object.)_S 134 _t
(The)_S 67 _t
(on/off)_S 67 _t
(and)_S 67 _t
(intensity)_S 67 _t
(properties)_S 67 _t
(are)_S 1200 3183 _m
(similar)_S 67 _t
(to)_S 67 _t
(a)_S 67 _t
(household)_S 67 _t
(dimmer;)_S 67 _t
(rotating)_S 67 _t
(the)_S 67 _t
(knob)_S 67 _t
(on)_S 67 _t
(a)_S 67 _t
(dimmer)_S 67 _t
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(the)_S 67 _t
(intensity,)_S 67 _t
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(pushing)_S 67 _t
(it)_S 67 _t
(in)_S 67 _t
(toggles)_S 67 _t
(the)_S 67 _t
(light)_S 67 _t
(on)_S 67 _t
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(off.)_S 1800 2484 _m
(The)_S 67 _t
(current)_S 67 _t
(version)_S 67 _t
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(AVRIL)_S 67 _t
(only)_S 67 _t
(supports)_S 67 _t
(ambient)_S 67 _t
(lights)_S 67 _t
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(directional)_S 67 _t
(lights;)_S 1200 2251 _m
(point)_S 67 _t
(sources)_S 67 _t
(will)_S 67 _t
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(soon.)_S 134 _t
(Any)_S 67 _t
(light)_S 67 _t
(that)_S 67 _t
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(not)_S 67 _t
(associated)_S 67 _t
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(an)_S 67 _t
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(is)_S 1200 2018 _m
(considered)_S 67 _t
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(this)_S 67 _t
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(addition)_S 67 _t
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(the)_S 67 _t
(overall)_S 67 _t
(ambient)_S 67 _t
(light)_S 67 _t
(level)_S 67 _t
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(the)_S 67 _t
(world.)_S 134 _t
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(directional)_S 67 _t
(light)_S 67 _t
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(the)_S 67 _t
(orientation)_S 67 _t
(of)_S 67 _t
(the)_S 67 _t
(object)_S 67 _t
(it's)_S 67 _t
(associated)_S 67 _t
(with)_S 67 _t
(to)_S 67 _t
(determine)_S 67 _t
(which)_S 8800 1255 _m
(35)_S _ep
_bp /Times-RomanR 600 _ff
0 13200 10200 _ornt
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1200 11855 _m
(direction)_S 67 _t
(the)_S 67 _t
(light)_S 67 _t
(should)_S 67 _t
(come)_S 67 _t
(from.)_S 134 _t
(A)_S 67 _t
(point)_S 67 _t
(source)_S 67 _t
(light)_S 67 _t
(\(once)_S 67 _t
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(the)_S 1200 11622 _m
(location)_S 67 _t
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(the)_S 67 _t
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(determine)_S 67 _t
(where)_S 67 _t
(the)_S 67 _t
(light)_S 67 _t
(comes)_S 67 _t
(from.)_S 1800 11156 _m
(As)_S 67 _t
(with)_S 67 _t
(worlds)_S 67 _t
(and)_S 67 _t
(objects,)_S 67 _t
(lights)_S 67 _t
(can)_S 67 _t
(be)_S 67 _t
(statically)_S 67 _t
(or)_S 67 _t
(dynamically)_S 67 _t
(created)_S 67 _t
(and)_S 1200 10923 _m
(destroyed)_S 67 _t
(using)_S 67 _t
(the)_S 67 _t
(following)_S 67 _t
(functions:)_S 1800 10511 _m
/CourierR 400 _ff
(vrl_Light)_S 80 _t
(*vrl_LightInit\(vrl_Light)_S 80 _t
(*light\);)_S 1800 10378 _m
(vrl_Light)_S 80 _t
(*vrl_LightCreate\(void\);)_S 1800 10245 _m
(void)_S 80 _t
(vrl_LightDestroy\(vrl_Light)_S 80 _t
(*light\);)_S /Times-RomanR 600 _ff
1200 9823 _m
(The)_S 67 _t
(light's)_S 67 _t
2156 9823 _m
/Times-ItalicR 600 _ff
(type)_S 2489 9823 _m
/Times-RomanR 600 _ff
67 _t
(value)_S 67 _t
(can)_S 67 _t
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(one)_S 67 _t
(of)_S 67 _t
(LIGHT_AMBIENT,)_S 67 _t
(LIGHT_DIRECTIONAL)_S 67 _t
(or)_S 1200 9590 _m
(LIGHT_POINTSOURCE,)_S 67 _t
(and)_S 67 _t
(is)_S 67 _t
(set)_S 67 _t
(and)_S 67 _t
(queried)_S 67 _t
(using)_S 67 _t
(the)_S 67 _t
(following)_S 67 _t
(two)_S 67 _t
(functions:)_S 1800 9178 _m
/CourierR 400 _ff
(void)_S 80 _t
(vrl_LightSetType\(vrl_Light)_S 80 _t
(*light,)_S 80 _t
(int)_S 80 _t
(type\);)_S 1800 9045 _m
(int)_S 80 _t
(vrl_LightGetType\(vrl_Light)_S 80 _t
(*light\);)_S /Times-RomanR 600 _ff
1200 8625 _m
(The)_S 67 _t
(light's)_S 67 _t
(on/off)_S 67 _t
(status)_S 67 _t
(can)_S 67 _t
(be)_S 67 _t
(checked)_S 67 _t
(and)_S 67 _t
(altered,)_S 67 _t
(and)_S 67 _t
(the)_S 67 _t
(intensity)_S 67 _t
(set)_S 67 _t
(and)_S 67 _t
(queried,)_S 67 _t
(using)_S 1200 8392 _m
(these)_S 67 _t
(functions:)_S 1800 7980 _m
/CourierR 400 _ff
(void)_S 80 _t
(vrl_LightOn\(vrl_Light)_S 80 _t
(*light\);)_S 1800 7847 _m
(void)_S 80 _t
(vrl_LightOff\(vrl_Light)_S 80 _t
(*light\);)_S 1800 7714 _m
(void)_S 80 _t
(vrl_LightToggle\(vrl_Light)_S 80 _t
(*light\);)_S 1800 7581 _m
(vrl_Boolean)_S 80 _t
(vrl_LightIsOn\(vrl_Light)_S 80 _t
(*light\);)_S 1800 7315 _m
(void)_S 80 _t
(vrl_LightSetIntensity\(vrl_Light)_S 80 _t
(*light,)_S 80 _t
(vrl_Factor)_S 80 _t
(inten\);)_S 1800 7182 _m
(vrl_Factor)_S 80 _t
(vrl_LightGetIntensity\(vrl_Light)_S 80 _t
(*light\);)_S /Times-RomanR 600 _ff
1200 6762 _m
(Notice)_S 67 _t
(that)_S 67 _t
(the)_S 67 _t
(intensity)_S 67 _t
(values)_S 67 _t
(are)_S 67 _t
(vrl_Factors;)_S 67 _t
(they)_S 67 _t
(should)_S 67 _t
(never)_S 67 _t
(be)_S 67 _t
(less)_S 67 _t
(than)_S 67 _t
(zero)_S 67 _t
(or)_S 67 _t
(greater)_S 1200 6529 _m
(than)_S 67 _t
(VRL_UNITY.)_S 1800 6063 _m
(You)_S 67 _t
(can)_S 67 _t
(make)_S 67 _t
(and)_S 67 _t
(break)_S 67 _t
(associations)_S 67 _t
(between)_S 67 _t
(a)_S 67 _t
(light)_S 67 _t
(source)_S 67 _t
(and)_S 67 _t
(an)_S 67 _t
(object,)_S 67 _t
(and)_S 1200 5830 _m
(determine)_S 67 _t
(what)_S 67 _t
(object)_S 67 _t
(a)_S 67 _t
(light)_S 67 _t
(source)_S 67 _t
(is)_S 67 _t
(currently)_S 67 _t
(associated)_S 67 _t
(with,)_S 67 _t
(using)_S 67 _t
(the)_S 67 _t
(following)_S 67 _t
(routines:)_S 1800 5418 _m
/CourierR 400 _ff
(void)_S 80 _t
(vrl_LightAssociate\(vrl_Light)_S 80 _t
(*light,)_S 80 _t
(vrl_Object)_S 80 _t
(*object\);)_S 1800 5285 _m
(void)_S 80 _t
(vrl_LightDisAssociate\(vrl_Light)_S 80 _t
(*light\);)_S 1800 5152 _m
(vrl_Object)_S 80 _t
(*vrl_LightGetObject\(vrl_Light)_S 80 _t
(*light\);)_S /Times-RomanR 600 _ff
1200 4732 _m
(Many)_S 67 _t
(of)_S 67 _t
(the)_S 67 _t
(routines)_S 67 _t
(that)_S 67 _t
(were)_S 67 _t
(used)_S 67 _t
(for)_S 67 _t
(objects)_S 67 _t
(earlier)_S 67 _t
(have)_S 67 _t
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(are)_S 67 _t
(used)_S 67 _t
(for)_S 1200 4499 _m
(light)_S 67 _t
(sources;)_S 67 _t
(they're)_S 67 _t
(implemented)_S 67 _t
(as)_S 67 _t
(macros)_S 67 _t
(that)_S 67 _t
(just)_S 67 _t
(perform)_S 67 _t
(the)_S 67 _t
(operations)_S 67 _t
(on)_S 67 _t
(the)_S 67 _t
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(the)_S 67 _t
(light)_S 67 _t
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(associated.)_S 1800 3854 _m
/CourierR 400 _ff
(vrl_LightMove\(light,)_S 80 _t
(x,)_S 80 _t
(y,)_S 80 _t
(z\);)_S 1800 3721 _m
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(x,)_S 80 _t
(y,)_S 80 _t
(z\);)_S 1800 3588 _m
(vrl_LightVectorMove\(light,)_S 80 _t
(v\);)_S 1800 3455 _m
(vrl_LightVectorRelMove\(light,)_S 80 _t
(v\);)_S 1800 3322 _m
(vrl_LightRotX\(light,)_S 80 _t
(angle\);)_S 1800 3189 _m
(vrl_LightRotY\(light,)_S 80 _t
(angle\);)_S 1800 3056 _m
(vrl_LightRotZ\(light,)_S 80 _t
(angle\);)_S 1800 2923 _m
(vrl_LightRotVector\(light,)_S 80 _t
(angle,)_S 80 _t
(vector\);)_S 1800 2790 _m
(vrl_LightRotReset\(light\);)_S 1800 2657 _m
(vrl_LightRotate\(light,)_S 80 _t
(angle,)_S 80 _t
(axis,)_S 80 _t
(frame,)_S 80 _t
(relative_to\);)_S 1800 2524 _m
(vrl_LightLookAt\(light,)_S 80 _t
(forward,)_S 80 _t
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(vrl_LightAttach\(obj,)_S 80 _t
(newparent\);)_S 1800 2258 _m
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(v\);)_S 1800 1992 _m
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(vrl_LightGetZ\(light\);)_S 8800 1255 _m
/Times-RomanR 600 _ff
(36)_S /CourierR 400 _ff
_ep
_bp /Times-RomanR 600 _ff
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1200 11855 _m
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(note)_S 67 _t
(the)_S 67 _t
(difference)_S 67 _t
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(light)_S 67 _t
(sources.)_S 134 _t
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(light)_S 1200 11622 _m
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(object's)_S 67 _t
(location)_S 67 _t
(and)_S 1200 11389 _m
(orientation)_S 67 _t
(as)_S 67 _t
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(own.)_S 134 _t
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(light)_S 67 _t
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(orientation)_S 67 _t
(information)_S 67 _t
(from)_S 67 _t
(it.)_S 134 _t
(The)_S 1200 10923 _m
(vrl_LightAttach\(\))_S 67 _t
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(vrl_LightDetach\(\))_S 67 _t
(routines)_S 67 _t
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(a)_S 67 _t
(convenience;)_S 67 _t
(what)_S 1200 10690 _m
(you're)_S 67 _t
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(attaching)_S 67 _t
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(those)_S 67 _t
(routines)_S 67 _t
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(the)_S 67 _t
(object)_S 67 _t
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(light)_S 67 _t
(is)_S 1200 10457 _m
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(with.)_S 134 _t
(You)_S 67 _t
(generally)_S 67 _t
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(a)_S 67 _t
(light)_S 67 _t
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(an)_S 67 _t
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(once,)_S 67 _t
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(the)_S 67 _t
(light)_S 67 _t
(however)_S 67 _t
(you)_S 67 _t
(want)_S 67 _t
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(that.)_S 1800 9758 _m
(Lights)_S 67 _t
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(attributes)_S 67 _t
(as)_S 67 _t
(well,)_S 67 _t
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(objects)_S 67 _t
(can;)_S 67 _t
(specifically,)_S 67 _t
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(have)_S 1200 9525 _m
(a)_S 67 _t
(name)_S 67 _t
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(application-specific)_S 67 _t
(data,)_S 67 _t
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(the)_S 67 _t
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(functions:)_S 1800 9113 _m
/CourierR 400 _ff
(void)_S 80 _t
(vrl_LightSetName\(vrl_Light)_S 80 _t
(*light,)_S 80 _t
(char)_S 80 _t
(*str\);)_S 1800 8980 _m
(char)_S 80 _t
(*vrl_LightGetName\(vrl_Light)_S 80 _t
(*light\);)_S 1800 8847 _m
(void)_S 80 _t
(vrl_LightSetApplicationData\(vrl_Light)_S 80 _t
(*light,)_S 80 _t
(void)_S 80 _t
(*data\);)_S 1800 8714 _m
(void)_S 80 _t
(*vrl_LightGetApplicationData\(vrl_Light)_S 80 _t
(*light\);)_S /Times-RomanR 600 _ff
1200 8264 _m
/Times-BoldR 720 _ff
(Cameras)_S 2120 8264 _m
/Times-RomanR 600 _ff
1800 7788 _m
(AVRIL)_S 67 _t
(allows)_S 67 _t
(you)_S 67 _t
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(any)_S 67 _t
(number)_S 67 _t
(of)_S 67 _t
(virtual)_S 67 _t
(cameras.)_S 134 _t
(Each)_S 67 _t
(camera)_S 67 _t
(is)_S 67 _t
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(with)_S 67 _t
(an)_S 67 _t
(object,)_S 67 _t
(much)_S 67 _t
(as)_S 67 _t
(lights)_S 67 _t
(are.)_S 134 _t
(However,)_S 67 _t
(unlike)_S 67 _t
(lights,)_S 67 _t
(cameras)_S 67 _t
6870 7553 _m
/Times-ItalicR 600 _ff
(must)_S 7248 7553 _m
/Times-RomanR 600 _ff
67 _t
(be)_S 67 _t
(associated)_S 67 _t
(with)_S 1200 7320 _m
(an)_S 67 _t
(object;)_S 67 _t
(there's)_S 67 _t
(no)_S 67 _t
(such)_S 67 _t
(thing)_S 67 _t
(as)_S 67 _t
(an)_S 67 _t
("ambient")_S 67 _t
(camera.)_S 134 _t
(Cameras)_S 67 _t
(are)_S 67 _t
(initialized)_S 67 _t
(and)_S 1200 7087 _m
(destroyed)_S 67 _t
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(like)_S 67 _t
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(light)_S 67 _t
(sources:)_S 1800 6675 _m
/CourierR 400 _ff
(vrl_Camera)_S 80 _t
(*vrl_CameraInit\(vrl_Camera)_S 80 _t
(*camera\);)_S 1800 6542 _m
(vrl_Camera)_S 80 _t
(*vrl_CameraCreate\(void\);)_S 1800 6409 _m
(void)_S 80 _t
(vrl_CameraDestroy\(vrl_Camera)_S 80 _t
(*camera\);)_S /Times-RomanR 600 _ff
1200 5989 _m
(Cameras)_S 67 _t
(have)_S 67 _t
(only)_S 67 _t
(a)_S 67 _t
(few)_S 67 _t
(properties)_S 67 _t
(that)_S 67 _t
(are)_S 67 _t
(important;)_S 67 _t
(in)_S 67 _t
(particular,)_S 67 _t
(a)_S 67 _t
(zoom)_S 67 _t
(factor,)_S 67 _t
(an)_S 67 _t
(aspect)_S 1200 5756 _m
(ratio,)_S 67 _t
(and)_S 67 _t
(hither)_S 67 _t
(and)_S 67 _t
(yon)_S 67 _t
(clipping)_S 67 _t
(plane)_S 67 _t
(distances.)_S 134 _t
(These)_S 67 _t
(are)_S 67 _t
(all)_S 67 _t
(set)_S 67 _t
(and)_S 67 _t
(queried)_S 67 _t
(using)_S 67 _t
(the)_S 1200 5523 _m
(following)_S 67 _t
(routines:)_S 1800 5111 _m
/CourierR 400 _ff
(void)_S 80 _t
(vrl_CameraSetZoom\(vrl_Camera)_S 80 _t
(*camera,)_S 80 _t
(float)_S 80 _t
(zoom\);)_S 1800 4978 _m
(float)_S 80 _t
(vrl_CameraGetZoom\(vrl_Camera)_S 80 _t
(*camera\);)_S 1800 4712 _m
(void)_S 80 _t
(vrl_CameraSetAspect\(vrl_Camera)_S 80 _t
(*camera,)_S 80 _t
(float)_S 80 _t
(asp\);)_S 1800 4579 _m
(float)_S 80 _t
(vrl_CameraGetAspect\(vrl_Camera)_S 80 _t
(*camera\);)_S 1800 4313 _m
(void)_S 80 _t
(vrl_CameraSetHither\(vrl_Camera)_S 80 _t
(*camera,)_S 80 _t
(vrl_Scalar)_S 80 _t
(hither\);)_S 1800 4180 _m
(vrl_Scalar)_S 80 _t
(vrl_CameraGetHither\(vrl_Camera)_S 80 _t
(*camera\);)_S 1800 3914 _m
(void)_S 80 _t
(vrl_CameraSetYon\(vrl_Camera)_S 80 _t
(*camera,)_S 80 _t
(vrl_Scalar)_S 80 _t
(yon\);)_S 1800 3781 _m
(vrl_Scalar)_S 80 _t
(vrl_CameraGetYon\(vrl_Camera)_S 80 _t
(*camera\);)_S /Times-RomanR 600 _ff
1200 3361 _m
(Notice)_S 67 _t
(that)_S 67 _t
(the)_S 67 _t
(zoom)_S 67 _t
(factor)_S 67 _t
(and)_S 67 _t
(aspect)_S 67 _t
(ratio)_S 67 _t
(are)_S 67 _t
(floats;)_S 67 _t
(this)_S 67 _t
(may)_S 67 _t
(change)_S 67 _t
(in)_S 67 _t
(a)_S 67 _t
(future)_S 67 _t
(release)_S 67 _t
(of)_S 1200 3128 _m
(AVRIL.)_S 134 _t
(The)_S 67 _t
(zoom)_S 67 _t
(factor)_S 67 _t
(works)_S 67 _t
(like)_S 67 _t
(the)_S 67 _t
(zoom)_S 67 _t
(on)_S 67 _t
(a)_S 67 _t
(camera;)_S 67 _t
(the)_S 67 _t
(higher)_S 67 _t
(the)_S 67 _t
(zoom,)_S 67 _t
(the)_S 67 _t
(more)_S 1200 2895 _m
(the)_S 67 _t
(image)_S 67 _t
(is)_S 67 _t
(magnified.)_S 134 _t
(The)_S 67 _t
(zoom)_S 67 _t
(is)_S 67 _t
(the)_S 67 _t
(tangent)_S 67 _t
(of)_S 67 _t
(half)_S 67 _t
(the)_S 67 _t
(field)_S 67 _t
(of)_S 67 _t
(view)_S 67 _t
(\(viewing)_S 67 _t
(angle\).)_S 67 _t
1200 2662 _m
(The)_S 67 _t
(aspect)_S 67 _t
(ratio)_S 67 _t
(is)_S 67 _t
(the)_S 67 _t
(ratio)_S 67 _t
(between)_S 67 _t
(the)_S 67 _t
(horizontal)_S 67 _t
(and)_S 67 _t
(vertical)_S 67 _t
(zoom)_S 67 _t
(factors.)_S 134 _t
(The)_S 67 _t
(hither)_S 1200 2429 _m
(clipping)_S 67 _t
(distance)_S 67 _t
(is)_S 67 _t
(the)_S 67 _t
(distance)_S 67 _t
(in)_S 67 _t
(virtual)_S 67 _t
(space)_S 67 _t
(from)_S 67 _t
(the)_S 67 _t
(camera)_S 67 _t
(to)_S 67 _t
(the)_S 67 _t
(invisible)_S 67 _t
(plane)_S 67 _t
(at)_S 1200 2196 _m
(which)_S 67 _t
(objects)_S 67 _t
(will)_S 67 _t
(be)_S 67 _t
("clipped".)_S 134 _t
(The)_S 67 _t
("yon")_S 67 _t
(distance)_S 67 _t
(is)_S 67 _t
(like)_S 67 _t
(an)_S 67 _t
(invisible)_S 67 _t
(wall;)_S 67 _t
(any)_S 67 _t
(object)_S 1200 1963 _m
(entirely)_S 67 _t
(on)_S 67 _t
(the)_S 67 _t
(far)_S 67 _t
(side)_S 67 _t
(of)_S 67 _t
(the)_S 67 _t
(wall)_S 67 _t
(will)_S 67 _t
(not)_S 67 _t
(be)_S 67 _t
(seen.)_S 8800 1255 _m
(37)_S _ep
_bp /Times-RomanR 600 _ff
0 13200 10200 _ornt
/_r { sflg {/_t {0 rmoveto}bdef /ron false def}
{ /_S /show load def /_t {0 rmoveto}bdef /ron false def}ifelse
}bdef
1800 11855 _m
(The)_S 67 _t
(routines)_S 67 _t
(for)_S 67 _t
(associating)_S 67 _t
(a)_S 67 _t
(camera)_S 67 _t
(with)_S 67 _t
(an)_S 67 _t
(object)_S 67 _t
(and)_S 67 _t
(for)_S 67 _t
(determining)_S 67 _t
(what)_S 67 _t
(object)_S 67 _t
(a)_S 1200 11622 _m
(camera)_S 67 _t
(is)_S 67 _t
(currently)_S 67 _t
(associated)_S 67 _t
(with)_S 67 _t
(are)_S 67 _t
(as)_S 67 _t
(follows:)_S 1800 11210 _m
/CourierR 400 _ff
(void)_S 80 _t
(vrl_CameraAssociate\(vrl_Camera)_S 80 _t
(*camera,)_S 80 _t
(vrl_Object)_S 80 _t
(*object\);)_S 1800 11077 _m
(vrl_Object)_S 80 _t
(*vrl_CameraGetObject\(vrl_Camera)_S 80 _t
(*camera\);)_S /Times-RomanR 600 _ff
1200 10657 _m
(There's)_S 67 _t
(no)_S 67 _t
(vrl_CameraDisAssociate\(\))_S 67 _t
(function,)_S 67 _t
(as)_S 67 _t
(there)_S 67 _t
(was)_S 67 _t
(for)_S 67 _t
(lights;)_S 67 _t
(cameras)_S 67 _t
(must)_S 67 _t
(be)_S 1200 10424 _m
(associated)_S 67 _t
(with)_S 67 _t
(an)_S 67 _t
(object)_S 67 _t
(in)_S 67 _t
(order)_S 67 _t
(to)_S 67 _t
(have)_S 67 _t
(any)_S 67 _t
(meaning.)_S 1800 9958 _m
(Again,)_S 67 _t
(routines)_S 67 _t
(are)_S 67 _t
(provided)_S 67 _t
(for)_S 67 _t
(manipulating)_S 67 _t
(and)_S 67 _t
(querying)_S 67 _t
(the)_S 67 _t
(location)_S 67 _t
(and)_S 1200 9725 _m
(orientation)_S 67 _t
(of)_S 67 _t
(a)_S 67 _t
(virtual)_S 67 _t
(camera;)_S 67 _t
(these)_S 67 _t
(are)_S 67 _t
(macros,)_S 67 _t
(just)_S 67 _t
(as)_S 67 _t
(they)_S 67 _t
(were)_S 67 _t
(for)_S 67 _t
(lights:)_S 1800 9313 _m
/CourierR 400 _ff
(vrl_CameraMove\(camera,)_S 80 _t
(x,)_S 80 _t
(y,)_S 80 _t
(z\);)_S 1800 9180 _m
(vrl_CameraRelMove\(camera,)_S 80 _t
(x,)_S 80 _t
(y,)_S 80 _t
(z\);)_S 1800 9047 _m
(vrl_CameraVectorMove\(camera,)_S 80 _t
(v\);)_S 1800 8914 _m
(vrl_CameraVectorRelMove\(camera,)_S 80 _t
(v\);)_S 1800 8781 _m
(vrl_CameraRotX\(camera,)_S 80 _t
(angle\);)_S 1800 8648 _m
(vrl_CameraRotY\(camera,)_S 80 _t
(angle\);)_S 1800 8515 _m
(vrl_CameraRotZ\(camera,)_S 80 _t
(angle\);)_S 1800 8382 _m
(vrl_CameraRotVector\(camera,)_S 80 _t
(angle,)_S 80 _t
(vector\);)_S 1800 8249 _m
(vrl_CameraRotReset\(camera\);)_S 1800 8116 _m
(vrl_CameraRotate\(camera,)_S 80 _t
(angle,)_S 80 _t
(axis,)_S 80 _t
(frame,)_S 80 _t
(relative_to\);)_S 1800 7983 _m
(vrl_CameraLookAt\(camera,)_S 80 _t
(forward,)_S 80 _t
(up\);)_S 1800 7850 _m
(vrl_CameraTranslate\(camera,)_S 80 _t
(v,)_S 80 _t
(axis,)_S 80 _t
(frame,)_S 80 _t
(relative_to\);)_S 1800 7717 _m
(vrl_CameraAttach\(obj,)_S 80 _t
(newparent\);)_S 1800 7584 _m
(vrl_CameraDetach\(obj\);)_S 1800 7451 _m
(vrl_CameraGetX\(camera\);)_S 1800 7318 _m
(vrl_CameraGetY\(camera\);)_S 1800 7185 _m
(vrl_CameraGetZ\(camera\);)_S 1800 7052 _m
(vrl_CameraGetLocation\(camera,)_S 80 _t
(v\);)_S /Times-RomanR 600 _ff
1200 6632 _m
(Camera)_S 67 _t
(can)_S 67 _t
(have)_S 67 _t
(other)_S 67 _t
(attributes)_S 67 _t
(as)_S 67 _t
(well,)_S 67 _t
(just)_S 67 _t
(as)_S 67 _t
(objects)_S 67 _t
(and)_S 67 _t
(lights)_S 67 _t
(can;)_S 67 _t
(specifically,)_S 67 _t
(they)_S 67 _t
(can)_S 1200 6399 _m
(have)_S 67 _t
(a)_S 67 _t
(name)_S 67 _t
(and)_S 67 _t
(some)_S 67 _t
(application-specific)_S 67 _t
(data,)_S 67 _t
(which)_S 67 _t
(are)_S 67 _t
(accessed)_S 67 _t
(using)_S 67 _t
(the)_S 67 _t
(following)_S 1200 6166 _m
(functions:)_S 1800 5754 _m
/CourierR 400 _ff
(void)_S 80 _t
(vrl_CameraSetName\(vrl_Camera)_S 80 _t
(*camera,)_S 80 _t
(char)_S 80 _t
(*str\);)_S 1800 5621 _m
(char)_S 80 _t
(*vrl_CameraGetName\(vrl_Camera)_S 80 _t
(*camera\);)_S 1800 5488 _m
(void)_S 80 _t
(vrl_CameraSetApplicationData\(vrl_Camera)_S 80 _t
(*camera,)_S 80 _t
(void)_S 80 _t
(*data\);)_S 1800 5355 _m
(void)_S 80 _t
(*vrl_CameraGetApplicationData\(vrl_Camera)_S 80 _t
(*camera\);)_S /Times-RomanR 600 _ff
1200 4935 _m
(In)_S 67 _t
(addition,)_S 67 _t
(there)_S 67 _t
(are)_S 67 _t
(three)_S 67 _t
(routines)_S 67 _t
(that)_S 67 _t
(obtain)_S 67 _t
(the)_S 67 _t
(current)_S 67 _t
("forward",)_S 67 _t
("right")_S 67 _t
(and)_S 67 _t
("up")_S 67 _t
(vectors)_S 1200 4702 _m
(for)_S 67 _t
(a)_S 67 _t
(camera:)_S 1800 4290 _m
/CourierR 400 _ff
(vrl_CameraGetForwardVector\(camera,)_S 80 _t
(v\))_S 1800 4157 _m
(vrl_CameraGetRightVector\(camera,)_S 80 _t
(v\))_S 1800 4024 _m
(vrl_CameraGetUpVector\(camera,)_S 80 _t
(v\))_S /Times-RomanR 600 _ff
1200 3574 _m
/Times-BoldR 720 _ff
(Layers)_S 1907 3574 _m
/Times-RomanR 600 _ff
1800 3098 _m
(Layers)_S 67 _t
(were)_S 67 _t
(described)_S 67 _t
(earlier,)_S 67 _t
(in)_S 67 _t
(the)_S 67 _t
(section)_S 67 _t
(on)_S 67 _t
(objects.)_S 134 _t
(The)_S 67 _t
(routines)_S 67 _t
(for)_S 67 _t
(dealing)_S 67 _t
(with)_S 1200 2865 _m
(layers)_S 67 _t
(are)_S 67 _t
(as)_S 67 _t
(follows:)_S 1800 2453 _m
/CourierR 400 _ff
(void)_S 80 _t
(vrl_LayerOn\(int)_S 80 _t
(n\);)_S 1800 2320 _m
(void)_S 80 _t
(vrl_LayerOff\(int)_S 80 _t
(n\);)_S 1800 2187 _m
(void)_S 80 _t
(vrl_LayerToggle\(int)_S 80 _t
(n\);)_S 1800 2054 _m
(int)_S 80 _t
(vrl_LayerIsOn\(int)_S 80 _t
(n\);)_S 1800 1921 _m
(void)_S 80 _t
(vrl_LayerAllOn\(void\);)_S /Times-RomanR 600 _ff
8800 1255 _m
(38)_S _ep
_bp /Times-RomanR 600 _ff
0 13200 10200 _ornt
/_r { sflg {/_t {0 rmoveto}bdef /ron false def}
{ /_S /show load def /_t {0 rmoveto}bdef /ron false def}ifelse
}bdef
1200 11855 _m
(The)_S 67 _t
(last)_S 67 _t
(routine,)_S 67 _t
(vrl_LayerAllOn\(\),)_S 67 _t
(turns)_S 67 _t
(all)_S 67 _t
(the)_S 67 _t
(layers)_S 67 _t
(on)_S 67 _t
(at)_S 67 _t
(once;)_S 67 _t
(this)_S 67 _t
(is)_S 67 _t
(the)_S 67 _t
(default)_S 1200 11622 _m
(condition.)_S 1200 11126 _m
/Times-BoldR 720 _ff
(File)_S 80 _t
(I/O)_S 80 _t
(Routines)_S 3000 11126 _m
/Times-RomanR 600 _ff
1800 10650 _m
(AVRIL)_S 67 _t
(supports)_S 67 _t
(the)_S 67 _t
(PLG)_S 67 _t
(file)_S 67 _t
(format,)_S 67 _t
(the)_S 67 _t
(FIG)_S 67 _t
(file)_S 67 _t
(format,)_S 67 _t
(and)_S 67 _t
(most)_S 67 _t
(of)_S 67 _t
(the)_S 67 _t
(WLD)_S 67 _t
(file)_S 1200 10417 _m
(format;)_S 67 _t
(these)_S 67 _t
(formats)_S 67 _t
(are)_S 67 _t
(described)_S 67 _t
(in)_S 67 _t
(the)_S 67 _t
(Appendices.)_S 134 _t
(The)_S 67 _t
(library)_S 67 _t
(contains)_S 67 _t
(routines)_S 67 _t
(for)_S 1200 10184 _m
(reading)_S 67 _t
(each)_S 67 _t
(of)_S 67 _t
(those)_S 67 _t
(formats:)_S 1800 9772 _m
/CourierR 400 _ff
(vrl_Shape)_S 80 _t
(*vrl_ReadPLG\(FILE)_S 80 _t
(*in\);)_S 1800 9639 _m
(vrl_Object)_S 80 _t
(*vrl_ReadObjectPLG\(FILE)_S 80 _t
(*in\);)_S 1800 9506 _m
(int)_S 80 _t
(vrl_ReadWLD\(FILE)_S 80 _t
(*in\);)_S 1800 9373 _m
(vrl_Object)_S 80 _t
(*vrl_ReadFIG\(FILE)_S 80 _t
(*in,)_S 80 _t
(vrl_Object)_S 80 _t
(*parent,)_S 80 _t
(char)_S 80 _t
(*rootname\);)_S /Times-RomanR 600 _ff
1200 8953 _m
(The)_S 67 _t
(vrl_ReadPLG\(\))_S 67 _t
(routine)_S 67 _t
(reads)_S 67 _t
(a)_S 67 _t
(shape)_S 67 _t
(from)_S 67 _t
(the)_S 67 _t
(specified)_S 67 _t
(file)_S 67 _t
(and)_S 67 _t
(returns)_S 67 _t
(a)_S 67 _t
(pointer)_S 67 _t
(to)_S 67 _t
(it.)_S 67 _t
1200 8720 _m
(The)_S 67 _t
(vrl_ReadObjectPLG\(\))_S 67 _t
(routine)_S 67 _t
(is)_S 67 _t
(similar,)_S 67 _t
(but)_S 67 _t
(it)_S 67 _t
(also)_S 67 _t
(allocates)_S 67 _t
(an)_S 67 _t
(object)_S 67 _t
(and)_S 67 _t
(assigns)_S 67 _t
(the)_S 1200 8487 _m
(shape)_S 67 _t
(to)_S 67 _t
(it.)_S 1800 8021 _m
(The)_S 67 _t
(vrl_ReadWLD\(\))_S 67 _t
(function)_S 67 _t
(reads)_S 67 _t
(a)_S 67 _t
(world)_S 67 _t
(description)_S 67 _t
(from)_S 67 _t
(the)_S 67 _t
(file)_S 67 _t
(into)_S 67 _t
(the)_S 67 _t
(current)_S 1200 7788 _m
(world;)_S 67 _t
(you)_S 67 _t
(can)_S 67 _t
(make)_S 67 _t
(as)_S 67 _t
(many)_S 67 _t
(calls)_S 67 _t
(to)_S 67 _t
(this)_S 67 _t
(routine)_S 67 _t
(as)_S 67 _t
(you)_S 67 _t
(like,)_S 67 _t
(combining)_S 67 _t
(a)_S 67 _t
(number)_S 67 _t
(of)_S 67 _t
(WLD)_S 1200 7555 _m
(files.)_S 134 _t
(The)_S 67 _t
(vrl_ReadFIG\(\))_S 67 _t
(routine)_S 67 _t
(lets)_S 67 _t
(you)_S 67 _t
(specify)_S 67 _t
(a)_S 67 _t
("parent")_S 67 _t
(object)_S 67 _t
(to)_S 67 _t
(which)_S 67 _t
(the)_S 67 _t
(newly-read)_S 1200 7322 _m
(object)_S 67 _t
(tree)_S 67 _t
(should)_S 67 _t
(be)_S 67 _t
(attached,)_S 67 _t
(as)_S 67 _t
(well)_S 67 _t
(as)_S 67 _t
(the)_S 67 _t
(name)_S 67 _t
(of)_S 67 _t
(the)_S 67 _t
(root)_S 67 _t
(object.)_S 134 _t
(Any)_S 67 _t
(segnames)_S 67 _t
(that)_S 67 _t
(are)_S 1200 7089 _m
(assigned)_S 67 _t
(in)_S 67 _t
(the)_S 67 _t
(FIG)_S 67 _t
(file)_S 67 _t
(will)_S 67 _t
(be)_S 67 _t
(added)_S 67 _t
(to)_S 67 _t
(the)_S 67 _t
(current)_S 67 _t
(world's)_S 67 _t
(list)_S 67 _t
(of)_S 67 _t
(objects)_S 67 _t
(as)_S 1200 6854 _m
/Times-ItalicR 600 _ff
(rootname.segname)_S 2716 6854 _m
/Times-RomanR 600 _ff
(.)_S 1800 6388 _m
(While)_S 67 _t
(loading)_S 67 _t
(a)_S 67 _t
(PLG)_S 67 _t
(file,)_S 67 _t
(a)_S 67 _t
(scale)_S 67 _t
(factor)_S 67 _t
(and)_S 67 _t
(offset)_S 67 _t
(can)_S 67 _t
(be)_S 67 _t
(applied.)_S 134 _t
(The)_S 67 _t
(vertices)_S 67 _t
(read)_S 1200 6155 _m
(from)_S 67 _t
(the)_S 67 _t
(file)_S 67 _t
(are)_S 67 _t
(multiplied)_S 67 _t
(by)_S 67 _t
(the)_S 67 _t
(scaling)_S 67 _t
(factors,)_S 67 _t
(and)_S 67 _t
(then)_S 67 _t
(the)_S 67 _t
(offsets)_S 67 _t
(are)_S 67 _t
(added)_S 67 _t
(to)_S 67 _t
(them.)_S 67 _t
1200 5922 _m
(The)_S 67 _t
(scale)_S 67 _t
(factors)_S 67 _t
(and)_S 67 _t
(offsets)_S 67 _t
(are)_S 67 _t
(set)_S 67 _t
(using:)_S 1800 5510 _m
/CourierR 400 _ff
(void)_S 80 _t
(vrl_SetReadPLGscale\(float)_S 80 _t
(x,)_S 80 _t
(float)_S 80 _t
(y,)_S 80 _t
(float)_S 80 _t
(z\);)_S 1800 5377 _m
(void)_S 80 _t
(vrl_SetReadPLGoffset\(float)_S 80 _t
(x,)_S 80 _t
(float)_S 80 _t
(y,)_S 80 _t
(float)_S 80 _t
(z\);)_S /Times-RomanR 600 _ff
1200 4957 _m
(FIG)_S 67 _t
(files)_S 67 _t
(can)_S 67 _t
(also)_S 67 _t
(have)_S 67 _t
(a)_S 67 _t
(scale)_S 67 _t
(factor)_S 67 _t
(applied)_S 67 _t
(to)_S 67 _t
(them.)_S 134 _t
(In)_S 67 _t
(addition,)_S 67 _t
(parts)_S 67 _t
(of)_S 67 _t
(a)_S 67 _t
(figure)_S 67 _t
(that)_S 67 _t
(have)_S 1200 4724 _m
(a)_S 67 _t
("segnum")_S 67 _t
(value)_S 67 _t
(set)_S 67 _t
(can)_S 67 _t
(have)_S 67 _t
(pointers)_S 67 _t
(to)_S 67 _t
(their)_S 67 _t
(objects)_S 67 _t
(placed)_S 67 _t
(into)_S 67 _t
(a)_S 67 _t
(parts)_S 67 _t
(array)_S 67 _t
(specified)_S 67 _t
(by)_S 1200 4491 _m
(the)_S 67 _t
(user:)_S 1800 4079 _m
/CourierR 400 _ff
(void)_S 80 _t
(vrl_SetReadFIGscale\(float)_S 80 _t
(x,)_S 80 _t
(float)_S 80 _t
(y,)_S 80 _t
(float)_S 80 _t
(z\);)_S 1800 3946 _m
(void)_S 80 _t
(vrl_SetReadFIGpartArray\(vrl_Object)_S 80 _t
(**ptr,)_S 80 _t
(int)_S 80 _t
(maxparts\);)_S /Times-RomanR 600 _ff
1200 3524 _m
(If)_S 67 _t
(the)_S 67 _t
1712 3524 _m
/Times-ItalicR 600 _ff
(ptr)_S 1945 3524 _m
/Times-RomanR 600 _ff
67 _t
(is)_S 67 _t
(not)_S 67 _t
(NULL,)_S 67 _t
(then)_S 67 _t
(any)_S 67 _t
(parts)_S 67 _t
(in)_S 67 _t
(the)_S 67 _t
(FIG)_S 67 _t
(file)_S 67 _t
(that)_S 67 _t
(have)_S 67 _t
(a)_S 67 _t
(segnum)_S 67 _t
(will)_S 67 _t
(create)_S 67 _t
(an)_S 67 _t
(entry)_S 1200 3289 _m
(in)_S 67 _t
(the)_S 67 _t
(array,)_S 67 _t
(indexed)_S 67 _t
(by)_S 67 _t
(the)_S 67 _t
(segnum)_S 67 _t
(value.)_S 134 _t
(The)_S 67 _t
5225 3289 _m
/Times-ItalicR 600 _ff
(maxparts)_S 5969 3289 _m
/Times-RomanR 600 _ff
67 _t
(value)_S 67 _t
(is)_S 67 _t
(the)_S 67 _t
(number)_S 67 _t
(of)_S 67 _t
(elements)_S 67 _t
(the)_S 1200 3056 _m
(caller)_S 67 _t
(has)_S 67 _t
(provided)_S 67 _t
(space)_S 67 _t
(for)_S 67 _t
(in)_S 67 _t
(the)_S 67 _t
(array.)_S 1800 2590 _m
(There)_S 67 _t
(are)_S 67 _t
(several)_S 67 _t
(other)_S 67 _t
(routines)_S 67 _t
(that)_S 67 _t
(support)_S 67 _t
(file)_S 67 _t
(operations.)_S 134 _t
(Two)_S 67 _t
(routines)_S 67 _t
(maintain)_S 67 _t
(a)_S 1200 2357 _m
(kind)_S 67 _t
(of)_S 67 _t
("current)_S 67 _t
(directory")_S 67 _t
(for)_S 67 _t
(file)_S 67 _t
(loading;)_S 67 _t
(they)_S 67 _t
(are)_S 1800 1945 _m
/CourierR 400 _ff
(void)_S 80 _t
(vrl_FileSetLoadpath\(char)_S 80 _t
(*path\);)_S 1800 1812 _m
(char)_S 80 _t
(*vrl_FileFixupFilename\(char)_S 80 _t
(*fname\);)_S 8800 1255 _m
/Times-RomanR 600 _ff
(39)_S /CourierR 400 _ff
_ep
_bp /Times-RomanR 600 _ff
0 13200 10200 _ornt
/_r { sflg {/_t {0 rmoveto}bdef /ron false def}
{ /_S /show load def /_t {0 rmoveto}bdef /ron false def}ifelse
}bdef
1200 11622 _m
(The)_S 67 _t
(first)_S 67 _t
(sets)_S 67 _t
(the)_S 67 _t
(given)_S 67 _t
(path)_S 67 _t
(\(if)_S 67 _t
(not)_S 67 _t
(NULL\))_S 67 _t
(to)_S 67 _t
(be)_S 67 _t
(the)_S 67 _t
(directory)_S 67 _t
(that)_S 67 _t
(subsequent)_S 67 _t
(filename)_S 67 _t
(fixups)_S 1200 11389 _m
(should)_S 67 _t
(use.)_S 134 _t
(The)_S 67 _t
(second)_S 67 _t
(routine)_S 67 _t
(is)_S 67 _t
(used)_S 67 _t
(to)_S 67 _t
(generate)_S 67 _t
(a)_S 67 _t
(full)_S 67 _t
(filename,)_S 67 _t
(with)_S 67 _t
(the)_S 67 _t
(current)_S 67 _t
(loadpath)_S 1200 11156 _m
(prepended.)_S 134 _t
(Note)_S 67 _t
(that)_S 67 _t
(filenames)_S 67 _t
(beginning)_S 67 _t
(with)_S 67 _t
('/')_S 67 _t
(or)_S 67 _t
('\\')_S 67 _t
(are)_S 67 _t
(not)_S 67 _t
(modified.)_S 134 _t
(Also)_S 67 _t
(note)_S 67 _t
(that)_S 1200 10923 _m
(vrl_FileFixupFilename\(\))_S 67 _t
(returns)_S 67 _t
(a)_S 67 _t
(pointer)_S 67 _t
(to)_S 67 _t
(an)_S 67 _t
(internal)_S 67 _t
(buffer,)_S 67 _t
(which)_S 67 _t
(will)_S 67 _t
(be)_S 67 _t
(rewritten)_S 67 _t
(on)_S 67 _t
(the)_S 1200 10690 _m
(next)_S 67 _t
(call)_S 67 _t
(to)_S 67 _t
(vrl_FileFixupFilename\(\).)_S 134 _t
(If)_S 67 _t
(you)_S 67 _t
(really)_S 67 _t
(need)_S 67 _t
(to)_S 67 _t
(keep)_S 67 _t
(the)_S 67 _t
(fixed-up)_S 67 _t
(filename)_S 67 _t
(around,)_S 1200 10457 _m
(you)_S 67 _t
(should)_S 67 _t
(strcpy\(\))_S 67 _t
(it)_S 67 _t
(to)_S 67 _t
(another)_S 67 _t
(buffer)_S 67 _t
(or)_S 67 _t
(strdup\(\))_S 67 _t
(it.)_S 1200 9961 _m
/Times-BoldR 720 _ff
(System)_S 80 _t
(and)_S 80 _t
(Application)_S 80 _t
(routines)_S 4600 9961 _m
/Times-RomanR 600 _ff
1800 9485 _m
(These)_S 67 _t
(routines)_S 67 _t
(were)_S 67 _t
(described)_S 67 _t
(in)_S 67 _t
(detail)_S 67 _t
(in)_S 67 _t
(the)_S 67 _t
(Introduction,)_S 67 _t
(but)_S 67 _t
(here's)_S 67 _t
(a)_S 67 _t
(quick)_S 1200 9252 _m
(summary:)_S 1800 8840 _m
/CourierR 400 _ff
(vrl_Boolean)_S 80 _t
(vrl_SystemStartup\(void\);)_S 1800 8707 _m
(void)_S 80 _t
(vrl_SystemRun\(void\);)_S 1800 8574 _m
(vrl_RenderStatus)_S 80 _t
(*vrl_SystemRender\(vrl_Object)_S 80 _t
(*list\);)_S 1800 8441 _m
(vrl_Time)_S 80 _t
(vrl_SystemGetRenderTime\(void\);)_S 1800 8308 _m
(vrl_Time)_S 80 _t
(vrl_SystemGetFrameRate\(void\);)_S 1800 8175 _m
(void)_S 80 _t
(vrl_SystemCommandLine\(int)_S 80 _t
(argc,)_S 80 _t
(char)_S 80 _t
(*argv[]\);)_S 1800 7909 _m
(void)_S 80 _t
(vrl_SystemRequestRefresh\(void\);)_S 1800 7776 _m
(vrl_Boolean)_S 80 _t
(vrl_SystemQueryRefresh\(void\);)_S 1800 7510 _m
(void)_S 80 _t
(vrl_SystemStartRunning\(void\);)_S 1800 7377 _m
(void)_S 80 _t
(vrl_SystemStopRunning\(void\);)_S 1800 7244 _m
(vrl_Boolean)_S 80 _t
(vrl_SystemIsRunning\(void\);)_S 1800 6978 _m
(void)_S 80 _t
(vrl_ApplicationDrawUnder\(void\);)_S 1800 6845 _m
(void)_S 80 _t
(vrl_ApplicationDrawOver\(vrl_RenderStatus)_S 80 _t
(*stat\);)_S 1800 6712 _m
(void)_S 80 _t
(vrl_ApplicationInit\(void\);)_S 1800 6579 _m
(void)_S 80 _t
(vrl_ApplicationKey\(unsigned)_S 80 _t
(int)_S 80 _t
(c\);)_S 1800 6446 _m
(void)_S 80 _t
(vrl_ApplicationMouseUp\(int)_S 80 _t
(x,)_S 80 _t
(int)_S 80 _t
(y,)_S 80 _t
(unsigned)_S 80 _t
(int)_S 80 _t
(buttons\);)_S /Times-RomanR 600 _ff
1200 6026 _m
(These)_S 67 _t
(are)_S 67 _t
(not)_S 67 _t
(really)_S 67 _t
(part)_S 67 _t
(of)_S 67 _t
(AVRIL's)_S 67 _t
("guts",)_S 67 _t
(since)_S 67 _t
(you)_S 67 _t
(don't)_S 67 _t
(need)_S 67 _t
(to)_S 67 _t
(use)_S 67 _t
(anything)_S 67 _t
(in)_S 67 _t
(system.c)_S 1200 5793 _m
(\(which)_S 67 _t
(is)_S 67 _t
(the)_S 67 _t
(only)_S 67 _t
(module)_S 67 _t
(that)_S 67 _t
(knows)_S 67 _t
(about)_S 67 _t
(the)_S 67 _t
(vrl_Application)_S 67 _t
(functions\).)_S 1200 5297 _m
/Times-BoldR 720 _ff
(User)_S 80 _t
(Interface)_S 2693 5297 _m
/Times-RomanR 600 _ff
1800 4821 _m
(The)_S 67 _t
(current)_S 67 _t
(version)_S 67 _t
(of)_S 67 _t
(AVRIL)_S 67 _t
(has)_S 67 _t
(a)_S 67 _t
(few)_S 67 _t
(primitive)_S 67 _t
(user)_S 67 _t
(interface)_S 67 _t
(routines)_S 67 _t
(for)_S 67 _t
(you)_S 67 _t
(to)_S 1200 4588 _m
(use.)_S 134 _t
(A)_S 67 _t
(better)_S 67 _t
(user)_S 67 _t
(interface)_S 67 _t
(needs)_S 67 _t
(to)_S 67 _t
(be)_S 67 _t
(designed;)_S 67 _t
(in)_S 67 _t
(the)_S 67 _t
(meantime,)_S 67 _t
(here)_S 67 _t
(are)_S 67 _t
(the)_S 67 _t
(routines:)_S 1800 4176 _m
/CourierR 400 _ff
(void)_S 80 _t
(vrl_UserInterfaceBox\(int)_S 80 _t
(width,)_S 80 _t
(int)_S 80 _t
(height,)_S 80 _t
(int)_S 80 _t
(*x,)_S 80 _t
(int)_S 80 _t
(*y\);)_S 1800 4043 _m
(void)_S 80 _t
(vrl_UserInterfacePopMsg\(char)_S 80 _t
(*msg\);)_S 1800 3910 _m
(void)_S 80 _t
(vrl_UserInterfacePopText\(char)_S 80 _t
(*text[]\);)_S 1800 3777 _m
(int)_S 80 _t
(vrl_UserInterfaceDismiss\(void\);)_S 1800 3644 _m
(int)_S 80 _t
(vrl_UserInterfacePopMenu\(char)_S 80 _t
(*text[]\);)_S 1800 3511 _m
(unsigned)_S 80 _t
(vrl_UserInterfacePopPrompt\(char)_S 80 _t
(*prompt,)_S 80 _t
(char)_S 80 _t
(*buff,)_S 80 _t
(int)_S 80 _t
(n\);)_S /Times-RomanR 600 _ff
1200 3091 _m
(The)_S 67 _t
(vrl_UserInterfaceBox\(\))_S 67 _t
(routine)_S 67 _t
(puts)_S 67 _t
(up)_S 67 _t
(a)_S 67 _t
(nice)_S 67 _t
(bordered)_S 67 _t
(box,)_S 67 _t
(centered)_S 67 _t
(on)_S 67 _t
(the)_S 67 _t
(screen.)_S 134 _t
(The)_S 1200 2856 _m
/Times-ItalicR 600 _ff
(width)_S 1645 2856 _m
/Times-RomanR 600 _ff
67 _t
(and)_S 67 _t
2067 2856 _m
/Times-ItalicR 600 _ff
(height)_S 2567 2856 _m
/Times-RomanR 600 _ff
67 _t
(determine)_S 67 _t
(the)_S 67 _t
(size)_S 67 _t
(of)_S 67 _t
(the)_S 67 _t
(box.)_S 134 _t
(When)_S 67 _t
(the)_S 67 _t
(routine)_S 67 _t
(returns,)_S 67 _t
7382 2856 _m
/Times-ItalicR 600 _ff
(x)_S 7470 2856 _m
/Times-RomanR 600 _ff
67 _t
(and)_S 67 _t
7893 2856 _m
/Times-ItalicR 600 _ff
(y)_S 7982 2856 _m
/Times-RomanR 600 _ff
67 _t
(will)_S 1200 2623 _m
(contain)_S 67 _t
(the)_S 67 _t
(screen)_S 67 _t
(coordinates)_S 67 _t
(of)_S 67 _t
(the)_S 67 _t
(top-left)_S 67 _t
(corner)_S 67 _t
(of)_S 67 _t
(the)_S 67 _t
(box.)_S 8800 1255 _m
(40)_S _ep
_bp /Times-RomanR 600 _ff
0 13200 10200 _ornt
/_r { sflg {/_t {0 rmoveto}bdef /ron false def}
{ /_S /show load def /_t {0 rmoveto}bdef /ron false def}ifelse
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1800 11855 _m
(The)_S 67 _t
(vrl_UserInterfacePopMsg\(\))_S 67 _t
(routine)_S 67 _t
(displays)_S 67 _t
(a)_S 67 _t
(one-line)_S 67 _t
(text)_S 67 _t
(message.)_S 134 _t
(The)_S 1200 11622 _m
(vrl_UserInterfacePopText\(\))_S 67 _t
(routine)_S 67 _t
(puts)_S 67 _t
(up)_S 67 _t
(a)_S 67 _t
(multi-line)_S 67 _t
(message;)_S 67 _t
(the)_S 67 _t
(array)_S 67 _t
(of)_S 67 _t
(string)_S 67 _t
(pointers)_S 1200 11389 _m
(has)_S 67 _t
(to)_S 67 _t
(have)_S 67 _t
(a)_S 67 _t
(NULL)_S 67 _t
(pointer)_S 67 _t
(entry)_S 67 _t
(at)_S 67 _t
(the)_S 67 _t
(end.)_S 1800 10923 _m
(The)_S 67 _t
(vrl_UserInterfaceDismiss\(\))_S 67 _t
(routine)_S 67 _t
(is)_S 67 _t
(useful)_S 67 _t
(after)_S 67 _t
(you've)_S 67 _t
(called)_S 67 _t
(either)_S 1200 10690 _m
(vrl_UserInteracePopMsg\(\))_S 67 _t
(or)_S 67 _t
(vrl_UserInterfacePopText\(\);)_S 67 _t
(it)_S 67 _t
(waits)_S 67 _t
(for)_S 67 _t
(the)_S 67 _t
(user)_S 67 _t
(to)_S 67 _t
(press)_S 67 _t
(a)_S 67 _t
(key)_S 1200 10457 _m
(or)_S 67 _t
(click)_S 67 _t
(the)_S 67 _t
(mouse.)_S 1800 9991 _m
(The)_S 67 _t
(vrl_UserInterfacePopMenu\(\))_S 67 _t
(routine)_S 67 _t
(displays)_S 67 _t
(a)_S 67 _t
(menu)_S 67 _t
(and)_S 67 _t
(waits)_S 67 _t
(for)_S 67 _t
(the)_S 67 _t
(user)_S 67 _t
(to)_S 1200 9758 _m
(select)_S 67 _t
(an)_S 67 _t
(item.)_S 134 _t
(If)_S 67 _t
(the)_S 67 _t
(user)_S 67 _t
(clicks)_S 67 _t
(on)_S 67 _t
(an)_S 67 _t
(item)_S 67 _t
(with)_S 67 _t
(the)_S 67 _t
(mouse,)_S 67 _t
(the)_S 67 _t
(index)_S 67 _t
(of)_S 67 _t
(that)_S 67 _t
(item)_S 67 _t
(will)_S 67 _t
(be)_S 1200 9525 _m
(returned)_S 67 _t
(as)_S 67 _t
(the)_S 67 _t
(value)_S 67 _t
(of)_S 67 _t
(the)_S 67 _t
(function.)_S 134 _t
(If)_S 67 _t
(the)_S 67 _t
(user)_S 67 _t
(presses)_S 67 _t
(a)_S 67 _t
(key,)_S 67 _t
(the)_S 67 _t
(menu)_S 67 _t
(is)_S 67 _t
(searched)_S 67 _t
(item)_S 67 _t
(by)_S 1200 9292 _m
(item)_S 67 _t
(until)_S 67 _t
(one)_S 67 _t
(is)_S 67 _t
(found)_S 67 _t
(that)_S 67 _t
(has)_S 67 _t
(an)_S 67 _t
(uppercase)_S 67 _t
(letter)_S 67 _t
(matching)_S 67 _t
(the)_S 67 _t
(key)_S 67 _t
(the)_S 67 _t
(user)_S 67 _t
(entered;)_S 67 _t
(the)_S 1200 9059 _m
(index)_S 67 _t
(of)_S 67 _t
(that)_S 67 _t
(entry)_S 67 _t
(is)_S 67 _t
(returned.)_S 134 _t
(If)_S 67 _t
(the)_S 67 _t
(user)_S 67 _t
(clicks)_S 67 _t
(outside)_S 67 _t
(the)_S 67 _t
(menu,)_S 67 _t
(or)_S 67 _t
(presses)_S 67 _t
(ESC,)_S 67 _t
(the)_S 67 _t
(value)_S 1200 8826 _m
(-1)_S 67 _t
(is)_S 67 _t
(returned.)_S 1800 8360 _m
(The)_S 67 _t
(vrl_UserInterfacePopPrompt\(\))_S 67 _t
(box)_S 67 _t
(displays)_S 67 _t
(a)_S 67 _t
(prompt)_S 67 _t
(to)_S 67 _t
(the)_S 67 _t
(user)_S 67 _t
(and)_S 67 _t
(lets)_S 67 _t
(them)_S 1200 8127 _m
(enter)_S 67 _t
(a)_S 67 _t
(text)_S 67 _t
(response.)_S 134 _t
(The)_S 67 _t
(backspace)_S 67 _t
(key)_S 67 _t
(is)_S 67 _t
(supported.)_S 134 _t
(The)_S 67 _t
(user)_S 67 _t
(can)_S 67 _t
(end)_S 67 _t
(their)_S 67 _t
(input)_S 67 _t
(using)_S 1200 7894 _m
(either)_S 67 _t
(ENTER)_S 67 _t
(or)_S 67 _t
(ESC;)_S 67 _t
(the)_S 67 _t
(key)_S 67 _t
(they)_S 67 _t
(press)_S 67 _t
(to)_S 67 _t
(end)_S 67 _t
(their)_S 67 _t
(input)_S 67 _t
(is)_S 67 _t
(returned)_S 67 _t
(as)_S 67 _t
(the)_S 67 _t
(value)_S 67 _t
(of)_S 67 _t
(the)_S 1200 7661 _m
(function.)_S 1800 7195 _m
(There)_S 67 _t
(are)_S 67 _t
(two)_S 67 _t
(other)_S 67 _t
(routines)_S 67 _t
(which)_S 67 _t
(are)_S 67 _t
(not)_S 67 _t
(really)_S 67 _t
(part)_S 67 _t
(of)_S 67 _t
(the)_S 67 _t
(user)_S 67 _t
(interface;)_S 67 _t
(they're)_S 1200 6962 _m
(used)_S 67 _t
(to)_S 67 _t
(overlay)_S 67 _t
(text)_S 67 _t
(on)_S 67 _t
(the)_S 67 _t
(screen)_S 67 _t
(or)_S 67 _t
(display)_S 67 _t
(the)_S 67 _t
(compass.)_S 134 _t
(They're)_S 67 _t
(typically)_S 67 _t
(called)_S 67 _t
(from)_S 1200 6729 _m
(vrl_ApplicationDrawOver\(\).)_S 1800 6317 _m
/CourierR 400 _ff
(void)_S 80 _t
(vrl_UserInterfaceDrawCompass\(vrl_Camera)_S 80 _t
(*camera,)_S 80 _t
(int)_S 80 _t
(x,)_S 80 _t
(int)_S 80 _t
(y,)_S 80 _t
(int)_S 80 _t
(armlen\);)_S 1800 6184 _m
(void)_S 80 _t
(vrl_UserInterfaceDropText\(int)_S 80 _t
(x,)_S 80 _t
(int)_S 80 _t
(y,)_S 80 _t
(int)_S 80 _t
(color,)_S 80 _t
(char)_S 80 _t
(*text\);)_S /Times-RomanR 600 _ff
1200 5762 _m
(In)_S 67 _t
(vrl_UserInterfaceDrawCompass\(\),)_S 67 _t
(the)_S 67 _t
4583 5762 _m
/Times-ItalicR 600 _ff
(x)_S 4672 5762 _m
/Times-RomanR 600 _ff
67 _t
(and)_S 67 _t
5095 5762 _m
/Times-ItalicR 600 _ff
(y)_S 5184 5762 _m
/Times-RomanR 600 _ff
67 _t
(values)_S 67 _t
(are)_S 67 _t
(the)_S 67 _t
(location)_S 67 _t
(of)_S 67 _t
(the)_S 67 _t
("origin")_S 67 _t
(of)_S 67 _t
(the)_S 1200 5527 _m
(compass)_S 67 _t
(and)_S 67 _t
2312 5527 _m
/Times-ItalicR 600 _ff
(armlen)_S 2878 5527 _m
/Times-RomanR 600 _ff
67 _t
(is)_S 67 _t
(the)_S 67 _t
(length)_S 67 _t
(of)_S 67 _t
(each)_S 67 _t
(arm.)_S 134 _t
(\(The)_S 67 _t
(arms)_S 67 _t
(will)_S 67 _t
(of)_S 67 _t
(course)_S 67 _t
(seem)_S 67 _t
(shorter)_S 1200 5292 _m
(because)_S 67 _t
(of)_S 67 _t
(perspective\).)_S 134 _t
(The)_S 67 _t
3673 5292 _m
/Times-ItalicR 600 _ff
(x)_S 3762 5292 _m
/Times-RomanR 600 _ff
(,)_S 67 _t
3879 5292 _m
/Times-ItalicR 600 _ff
(y)_S 3968 5292 _m
/Times-RomanR 600 _ff
67 _t
(and)_S 67 _t
4390 5292 _m
/Times-ItalicR 600 _ff
(armlen)_S 4957 5292 _m
/Times-RomanR 600 _ff
67 _t
(values)_S 67 _t
(are)_S 67 _t
(in)_S 67 _t
(screen)_S 67 _t
(coordinates)_S 67 _t
(\(i.e.,)_S 67 _t
(pixels\).)_S 67 _t
1200 5057 _m
(The)_S 67 _t
1578 5057 _m
/Times-ItalicR 600 _ff
(camera)_S 2178 5057 _m
/Times-RomanR 600 _ff
67 _t
(is)_S 67 _t
(used)_S 67 _t
(to)_S 67 _t
(obtain)_S 67 _t
(orientation)_S 67 _t
(information)_S 67 _t
(about)_S 67 _t
(the)_S 67 _t
(user's)_S 67 _t
(viewpoint.)_S 1800 4591 _m
(The)_S 67 _t
(vrl_UserInterfaceDropText\(\))_S 67 _t
(routine)_S 67 _t
(displays)_S 67 _t
(the)_S 67 _t
(text)_S 67 _t
(message)_S 67 _t
(at)_S 67 _t
(the)_S 67 _t
(given)_S 67 _t
(screen)_S 1200 4358 _m
(coordinates)_S 67 _t
(in)_S 67 _t
(the)_S 67 _t
(given)_S 67 _t
(color,)_S 67 _t
(with)_S 67 _t
(a)_S 67 _t
(black)_S 67 _t

(\(i.e.,)_S 67 _t
(color)_S 67 _t
(0\))_S 67 _t
(drop)_S 67 _t
(shadow.)_S 1200 3862 _m
/Times-BoldR 720 _ff
(Tasks)_S 1800 3862 _m
/Times-RomanR 600 _ff
1800 3386 _m
(The)_S 67 _t
(pseudo-tasking)_S 67 _t
(mechanism)_S 67 _t
(was)_S 67 _t
(described)_S 67 _t
(back)_S 67 _t
(in)_S 67 _t
(the)_S 67 _t
(Introduction)_S 67 _t
(section.)_S 134 _t
(Tasks)_S 1200 3153 _m
(are)_S 67 _t
(added)_S 67 _t
(using)_S 67 _t
(vrl_TaskCreate\(\),)_S 67 _t
(which)_S 67 _t
(takes)_S 67 _t
(a)_S 67 _t
(pointer)_S 67 _t
(to)_S 67 _t
(the)_S 67 _t
(function,)_S 67 _t
(a)_S 67 _t
(pointer)_S 67 _t
(to)_S 67 _t
(the)_S 67 _t
(data,)_S 1200 2920 _m
(and)_S 67 _t
(the)_S 67 _t
(period.)_S 134 _t
(The)_S 67 _t
(tasks)_S 67 _t
(should)_S 67 _t
(be)_S 67 _t
(run)_S 67 _t
(periodically)_S 67 _t
(by)_S 67 _t
(calling)_S 67 _t
(vrl_TaskRun\(\),)_S 67 _t
(which)_S 67 _t
(is)_S 1200 2687 _m
(normally)_S 67 _t
(done)_S 67 _t
(in)_S 67 _t
(vrl_SystemRun\(\).)_S 134 _t
(The)_S 67 _t
(tasks)_S 67 _t
(can)_S 67 _t
(obtain)_S 67 _t
(a)_S 67 _t
(pointer)_S 67 _t
(to)_S 67 _t
(their)_S 67 _t
(data)_S 67 _t
(by)_S 67 _t
(calling)_S 1200 2454 _m
(vrl_TaskGetData\(\),)_S 67 _t
(the)_S 67 _t
(elapsed)_S 67 _t
(time)_S 67 _t
(since)_S 67 _t
(they)_S 67 _t
(last)_S 67 _t
(ran)_S 67 _t
(by)_S 67 _t
(calling)_S 67 _t
(vrl_TaskGetElapsed\(\),)_S 67 _t
(and)_S 1200 2221 _m
(the)_S 67 _t
(current)_S 67 _t
(time)_S 67 _t
(by)_S 67 _t
(calling)_S 67 _t
(vrl_TaskGetTimeNow\(\).)_S 134 _t
(Note)_S 67 _t
(that)_S 67 _t
(for)_S 67 _t
(any)_S 67 _t
(given)_S 67 _t
(call)_S 67 _t
(to)_S 1200 1988 _m
(vrl_TaskRun\(\),)_S 67 _t
(all)_S 67 _t
(the)_S 67 _t
(tasks)_S 67 _t
(will)_S 67 _t
(receive)_S 67 _t
(the)_S 67 _t
(same)_S 67 _t
(value)_S 67 _t
(from)_S 67 _t
(vrl_TaskGetTimeNow\(\);)_S 67 _t
(this)_S 67 _t
(is)_S 8800 1255 _m
(41)_S _ep
_bp /Times-RomanR 600 _ff
0 13200 10200 _ornt
/_r { sflg {/_t {0 rmoveto}bdef /ron false def}
{ /_S /show load def /_t {0 rmoveto}bdef /ron false def}ifelse
}bdef
1200 11855 _m
(different)_S 67 _t
(from)_S 67 _t
(vrl_TimerRead\(\),)_S 67 _t
(since)_S 67 _t
(the)_S 67 _t
(timer)_S 67 _t
(runs)_S 67 _t
(independently)_S 67 _t
(of)_S 67 _t
(the)_S 67 _t
(tasks.)_S 134 _t
(You)_S 67 _t
(may)_S 1200 11622 _m
(want)_S 67 _t
(to)_S 67 _t
(use)_S 67 _t
(one)_S 67 _t
(or)_S 67 _t
(the)_S 67 _t
(other)_S 67 _t
(of)_S 67 _t
(those)_S 67 _t
(two)_S 67 _t
(functions)_S 67 _t
(depending)_S 67 _t
(on)_S 67 _t
(the)_S 67 _t
(circumstances.)_S 1800 11210 _m
/CourierR 400 _ff
(vrl_Boolean)_S 80 _t
(vrl_TaskCreate\(void)_S 80 _t
(\(*function\)\(void\),)_S 80 _t
(void)_S 80 _t
(*data,)_S 80 _t
(vrl_Time)_S 80 _t
(period\);)_S 1800 11077 _m
(void)_S 80 _t
(vrl_TaskRun\(void\);)_S 1800 10944 _m
(void)_S 80 _t
(*vrl_TaskGetData\(void\);)_S 1800 10811 _m
(vrl_Time)_S 80 _t
(vrl_TaskGetElapsed\(void\);)_S 1800 10678 _m
(vrl_Time)_S 80 _t
(vrl_TaskGetTimeNow\(void\);)_S /Times-RomanR 600 _ff
1200 10228 _m
/Times-BoldR 720 _ff
(Primitives)_S 2253 10228 _m
/Times-RomanR 600 _ff
1800 9752 _m
(AVRIL)_S 67 _t
(currently)_S 67 _t
(provides)_S 67 _t
(five)_S 67 _t
(utility)_S 67 _t
(routines)_S 67 _t
(for)_S 67 _t
(creating)_S 67 _t
(simple)_S 67 _t
(geometric)_S 1200 9519 _m
(primitives.)_S 134 _t
(Each)_S 67 _t
(takes)_S 67 _t
(a)_S 67 _t
(surface)_S 67 _t
(map)_S 67 _t
(pointer;)_S 67 _t
(if)_S 67 _t
(the)_S 67 _t
(value)_S 67 _t
(is)_S 67 _t
(NULL,)_S 67 _t
(the)_S 67 _t
(default)_S 67 _t
(color)_S 67 _t
(for)_S 1200 9286 _m
(geometric)_S 67 _t
(primitives)_S 67 _t
(is)_S 67 _t
(used.)_S 1800 8874 _m
/CourierR 400 _ff
(vrl_Shape)_S 80 _t
(*vrl_PrimitiveBox\(vrl_Scalar)_S 80 _t
(width,)_S 80 _t
(vrl_Scalar)_S 80 _t
(height,)_S 80 _t
(vrl_Scalar)_S 80 _t
(depth,)_S 2400 8741 _m
(vrl_Surfacemap)_S 80 _t
(*map\);)_S 1800 8475 _m
(vrl_Shape)_S 80 _t
(*vrl_PrimitiveCone\(vrl_Scalar)_S 80 _t
(radius,)_S 80 _t
(vrl_Scalar)_S 80 _t
(height,)_S 80 _t
(int)_S 80 _t
(nsides,)_S 2400 8342 _m
(vrl_Surfacemap)_S 80 _t
(*map\);)_S 1800 8076 _m
(vrl_Shape)_S 80 _t
(*vrl_PrimitiveCylinder\(vrl_Scalar)_S 80 _t
(bottom_radius,)_S 80 _t
(vrl_Scalar)_S 80 _t
(top_radius,)_S 2400 7943 _m
(vrl_Scalar)_S 80 _t
(height,)_S 80 _t
(int)_S 80 _t
(nsides,)_S 80 _t
(vrl_Surfacemap)_S 80 _t
(*map\);)_S 1800 7677 _m
(vrl_Shape)_S 80 _t
(*vrl_PrimitivePrism\(vrl_Scalar)_S 80 _t
(width,)_S 80 _t
(vrl_Scalar)_S 80 _t
(height,)_S 80 _t
(vrl_Scalar)_S 80 _t
(depth,)_S 2400 7544 _m
(vrl_Surfacemap)_S 80 _t
(*map\);)_S 1800 7278 _m
(vrl_Shape)_S 80 _t
(*vrl_PrimitiveSphere\(vrl_Scalar)_S 80 _t
(radius,)_S 80 _t
(int)_S 80 _t
(vsides,)_S 80 _t
(int)_S 80 _t
(hsides,)_S 2400 7145 _m
(vrl_Surfacemap)_S 80 _t
(*map\);)_S /Times-RomanR 600 _ff
1200 6725 _m
(The)_S 67 _t
(box)_S 67 _t
(and)_S 67 _t
(sphere)_S 67 _t
(have)_S 67 _t
(their)_S 67 _t
(origin)_S 67 _t
(at)_S 67 _t
(their)_S 67 _t
(geometric)_S 67 _t
(centers,)_S 67 _t
(the)_S 67 _t
(cone)_S 67 _t
(and)_S 67 _t
(the)_S 67 _t
(cylinder)_S 1200 6492 _m
(have)_S 67 _t
(their)_S 67 _t
(origin)_S 67 _t
(at)_S 67 _t
(the)_S 67 _t
(center)_S 67 _t
(of)_S 67 _t
(their)_S 67 _t
(bases,)_S 67 _t
(and)_S 67 _t
(the)_S 67 _t
(prism)_S 67 _t
(has)_S 67 _t
(its)_S 67 _t
(origin)_S 67 _t
(at)_S 67 _t
(one)_S 67 _t
(corner.)_S 134 _t
(You)_S 1200 6259 _m
(can)_S 67 _t
(use)_S 67 _t
(vrl_ShapeOffset\(\))_S 67 _t
(to)_S 67 _t
(change)_S 67 _t
(these)_S 67 _t
(choices)_S 67 _t
(if)_S 67 _t
(you)_S 67 _t
(wish.)_S 1200 5763 _m
/Times-BoldR 720 _ff
(Rendering)_S 2280 5763 _m
/Times-RomanR 600 _ff
1800 5287 _m
(The)_S 67 _t
(rendering)_S 67 _t
("engine")_S 67 _t
(needs)_S 67 _t
(to)_S 67 _t
(be)_S 67 _t
(initialized)_S 67 _t
(before)_S 67 _t
(any)_S 67 _t
(actual)_S 67 _t
(rendering)_S 67 _t
(is)_S 67 _t
(done.)_S 67 _t
1200 5054 _m
(The)_S 67 _t
(renderer)_S 67 _t
(needs)_S 67 _t
(to)_S 67 _t
(know)_S 67 _t
(how)_S 67 _t
(much)_S 67 _t
(memory)_S 67 _t
(to)_S 67 _t
(allocate)_S 67 _t
(for)_S 67 _t
(itself,)_S 67 _t
(as)_S 67 _t
(well)_S 67 _t
(as)_S 67 _t
(the)_S 67 _t
(maximum)_S 1200 4821 _m
(number)_S 67 _t
(of)_S 67 _t
(objects,)_S 67 _t
(facets,)_S 67 _t
(vertices)_S 67 _t
(and)_S 67 _t
(lights)_S 67 _t
(it)_S 67 _t
(will)_S 67 _t
(have)_S 67 _t
(to)_S 67 _t
(contend)_S 67 _t
(with.)_S 134 _t
(When)_S 67 _t
(the)_S 67 _t
(program)_S 1200 4588 _m
(is)_S 67 _t
(ready)_S 67 _t
(to)_S 67 _t
(exit,)_S 67 _t
(vrl_RenderQuit\(\))_S 67 _t
(should)_S 67 _t
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(called)_S 67 _t
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(cleanly)_S 67 _t
(shut)_S 67 _t
(down)_S 67 _t
(the)_S 67 _t
(engine.)_S 1800 4176 _m
/CourierR 400 _ff
(vrl_Boolean)_S 80 _t
(vrl_RenderInit\(int)_S 80 _t
(maxvert,)_S 80 _t
(int)_S 80 _t
(maxf,)_S 80 _t
(int)_S 80 _t
(maxobjs,)_S 80 _t
(int)_S 80 _t
(maxlights,)_S 2400 4043 _m
(unsigned)_S 80 _t
(int)_S 80 _t
(mempoolsize\);)_S 1800 3910 _m
(void)_S 80 _t
(vrl_RenderQuit\(void\);)_S /Times-RomanR 600 _ff
1200 3490 _m
(The)_S 67 _t
(routines)_S 67 _t
(in)_S 67 _t
(system.c)_S 67 _t
(normally)_S 67 _t
(handle)_S 67 _t
(the)_S 67 _t
(calling)_S 67 _t
(of)_S 67 _t
(vrl_RenderInit\(\),)_S 67 _t
(and)_S 67 _t
(the)_S 67 _t
(setting)_S 67 _t
(up)_S 67 _t
(of)_S 1200 3257 _m
(an)_S 67 _t
(atexit\(\))_S 67 _t
(function)_S 67 _t
(for)_S 67 _t
(vrl_RenderQuit\(\).)_S 1200 2791 _m
(Two)_S 67 _t
(functions)_S 67 _t
(are)_S 67 _t
(used)_S 67 _t
(to)_S 67 _t
(give)_S 67 _t
(the)_S 67 _t
(renderer)_S 67 _t
(a)_S 67 _t
(pointer)_S 67 _t
(to)_S 67 _t
(the)_S 67 _t
(current)_S 67 _t
(camera)_S 67 _t
(and)_S 67 _t
(list)_S 67 _t
(of)_S 67 _t
(lights,)_S 1200 2558 _m
(and)_S 67 _t
(to)_S 67 _t
(set)_S 67 _t
(the)_S 67 _t
(current)_S 67 _t
(ambient)_S 67 _t
(lighting)_S 67 _t
(level)_S 67 _t
(\(usually)_S 67 _t
(that)_S 67 _t
(for)_S 67 _t
(the)_S 67 _t
(current)_S 67 _t
(world\):)_S 1800 2146 _m
/CourierR 400 _ff
(void)_S 80 _t
(vrl_RenderBegin\(vrl_Camera)_S 80 _t
(*camera,)_S 80 _t
(vrl_Light)_S 80 _t
(*lights\);)_S 1800 2013 _m
(void)_S 80 _t
(vrl_RenderSetAmbient\(vrl_Factor)_S 80 _t
(amb\);)_S /Times-RomanR 600 _ff
8800 1255 _m
(42)_S _ep
_bp /Times-RomanR 600 _ff
0 13200 10200 _ornt
/_r { sflg {/_t {0 rmoveto}bdef /ron false def}
{ /_S /show load def /_t {0 rmoveto}bdef /ron false def}ifelse
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1200 11855 _m
(Finally,)_S 67 _t
(two)_S 67 _t
(functions)_S 67 _t
(do)_S 67 _t
(the)_S 67 _t
(actual)_S 67 _t
(drawing;)_S 67 _t
(one)_S 67 _t
(draws)_S 67 _t
(a)_S 67 _t
(horizon,)_S 67 _t
(the)_S 67 _t
(other)_S 67 _t
(renders)_S 67 _t
(a)_S 67 _t
(list)_S 67 _t
(of)_S 1200 11622 _m
(objects)_S 67 _t
(\(such)_S 67 _t
(as)_S 67 _t
(that)_S 67 _t
(returned)_S 67 _t
(by)_S 67 _t
(vrl_ObjectUpdate\(\))_S 67 _t
(or)_S 67 _t
(vrl_WorldUpdate\(\)\).)_S 1800 11210 _m
/CourierR 400 _ff
(void)_S 80 _t
(vrl_RenderHorizon\(void\);)_S 1800 11077 _m
(vrl_Status)_S 80 _t
(*vrl_RenderObjlist\(vrl_Object)_S 80 _t
(*objects\);)_S /Times-RomanR 600 _ff
1200 10657 _m
(The)_S 67 _t
(vrl_RenderObjlist\(\))_S 67 _t
(function)_S 67 _t
(returns)_S 67 _t
(a)_S 67 _t
(pointer)_S 67 _t
(to)_S 67 _t
(a)_S 67 _t
(status)_S 67 _t
(struct,)_S 67 _t
(which)_S 67 _t
(was)_S 67 _t
(described)_S 67 _t
(in)_S 1200 10424 _m
(the)_S 67 _t
(Introduction)_S 67 _t
(section.)_S 134 _t
(If)_S 67 _t
(the)_S 67 _t
(list)_S 67 _t
(of)_S 67 _t
(objects)_S 67 _t
(is)_S 67 _t
(NULL,)_S 67 _t
(then)_S 67 _t
(the)_S 67 _t
(last)_S 67 _t
(non-NULL)_S 67 _t
(list)_S 67 _t
(of)_S 1200 10191 _m
(objects)_S 67 _t
(that)_S 67 _t
(was)_S 67 _t
(passed)_S 67 _t
(is)_S 67 _t
(used)_S 1800 9725 _m
(There)_S 67 _t
(are)_S 67 _t
(two)_S 67 _t
(functions)_S 67 _t
(that)_S 67 _t
(allow)_S 67 _t
(you)_S 67 _t
(to)_S 67 _t
(monitor)_S 67 _t
(a)_S 67 _t
(particular)_S 67 _t
(point)_S 67 _t
(on)_S 67 _t
(the)_S 67 _t
(screen,)_S 67 _t
(and)_S 1200 9492 _m
(then)_S 67 _t
(see)_S 67 _t
(what)_S 67 _t
(objects)_S 67 _t
(and)_S 67 _t
(facets)_S 67 _t
(were)_S 67 _t
(under)_S 67 _t
(the)_S 67 _t
(cursor)_S 67 _t
(\(and)_S 67 _t
(nearest)_S 67 _t
(the)_S 67 _t
(viewer\).)_S 1800 9080 _m
/CourierR 400 _ff
(void)_S 80 _t
(vrl_RenderMonitorInit\(int)_S 80 _t
(x,)_S 80 _t
(int)_S 80 _t
(y\);)_S 1800 8947 _m
(vrl_Boolean)_S 80 _t
(vrl_RenderMonitorRead\(vrl_Object)_S 80 _t
(**obj,)_S 80 _t
(vrl_Facet)_S 80 _t
(**facet,)_S 80 _t
(int)_S 80 _t
(*vertnum\);)_S /Times-RomanR 600 _ff
1200 8525 _m
(The)_S 67 _t
1578 8525 _m
/Times-ItalicR 600 _ff
(x)_S 1667 8525 _m
/Times-RomanR 600 _ff
67 _t
(and)_S 67 _t
2090 8525 _m
/Times-ItalicR 600 _ff
(y)_S 2178 8525 _m
/Times-RomanR 600 _ff
67 _t
(values)_S 67 _t
(are)_S 67 _t
(coordinates)_S 67 _t
(in)_S 67 _t
(the)_S 67 _t
(current)_S 67 _t
(screen)_S 67 _t
(window)_S 67 _t
(\(such)_S 67 _t
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(those)_S 67 _t
(passed)_S 67 _t
(to)_S 1200 8290 _m
(vrl_ApplicationMouseUp\(\)\).)_S 134 _t
(The)_S 67 _t
4017 8290 _m
/Times-ItalicR 600 _ff
(obj)_S 4273 8290 _m
/Times-RomanR 600 _ff
67 _t
(pointer)_S 67 _t
(\(if)_S 67 _t
(not)_S 67 _t
(NULL\))_S 67 _t
(gets)_S 67 _t
(set)_S 67 _t
(to)_S 67 _t
(point)_S 67 _t
(to)_S 67 _t
(the)_S 67 _t
(object)_S 67 _t
(the)_S 1200 8055 _m
(cursor)_S 67 _t
(was)_S 67 _t
(over;)_S 67 _t
(similarly,)_S 67 _t
(the)_S 67 _t
3762 8055 _m
/Times-ItalicR 600 _ff
(facet)_S 4151 8055 _m
/Times-RomanR 600 _ff
67 _t
(pointer)_S 67 _t
(\(if)_S 67 _t
(not)_S 67 _t
(NULL\))_S 67 _t
(gets)_S 67 _t
(set)_S 67 _t
(to)_S 67 _t
(point)_S 67 _t
(to)_S 67 _t
(the)_S 67 _t
(facet)_S 67 _t
(the)_S 1200 7820 _m
(cursor)_S 67 _t
(was)_S 67 _t
(over.)_S 134 _t
(The)_S 67 _t
3062 7820 _m
/Times-ItalicR 600 _ff
(vertnum)_S 3718 7820 _m
/Times-RomanR 600 _ff
67 _t
(pointer)_S 67 _t
(is)_S 67 _t
(not)_S 67 _t
(currently)_S 67 _t
(used.)_S 134 _t
(If)_S 67 _t
(nothing)_S 67 _t
(was)_S 67 _t
(under)_S 67 _t
(the)_S 67 _t
(cursor,)_S 1200 7587 _m
(vrl_RenderMonitorRead\(\))_S 67 _t
(returns)_S 67 _t
(zero.)_S 134 _t
(Remember)_S 67 _t
(that)_S 67 _t
(you)_S 67 _t
(must)_S 67 _t
(call)_S 67 _t
(vrl_RenderObjlist\(\))_S 1200 7354 _m
(between)_S 67 _t
(the)_S 67 _t
(call)_S 67 _t
(to)_S 67 _t
(vrl_RenderMonitorInit\(\))_S 67 _t
(and)_S 67 _t
(vrl_RenderMonitorRead\(\);)_S 67 _t
(typically,)_S 67 _t
(you)_S 1200 7121 _m
(would)_S 67 _t
(call)_S 67 _t
(it)_S 67 _t
(as)_S 67 _t
(vrl_RenderObjlist\(NULL\))_S 67 _t
(to)_S 67 _t
(just)_S 67 _t
(re-render)_S 67 _t
(the)_S 67 _t
(last)_S 67 _t
(object)_S 67 _t
(list)_S 67 _t
(that)_S 67 _t
(was)_S 67 _t
(used.)_S 1200 6625 _m
/Times-BoldR 720 _ff
(The)_S 80 _t
(Keyboard,)_S 80 _t
(the)_S 80 _t
(Mouse)_S 80 _t
(and)_S 80 _t
(the)_S 80 _t
(Timer)_S 5513 6625 _m
/Times-RomanR 600 _ff
1800 6149 _m
(AVRIL)_S 67 _t
(has)_S 67 _t
(a)_S 67 _t
(set)_S 67 _t
(of)_S 67 _t
(routines)_S 67 _t
(which)_S 67 _t
(deal)_S 67 _t
(with)_S 67 _t
(the)_S 67 _t
(keyboard,)_S 67 _t
(mouse)_S 67 _t
(and)_S 67 _t
(timer;)_S 67 _t
(these)_S 1200 5916 _m
(will)_S 67 _t
(vary)_S 67 _t
(from)_S 67 _t
(one)_S 67 _t
(platform)_S 67 _t
(to)_S 67 _t
(another,)_S 67 _t
(but)_S 67 _t
(they)_S 67 _t
(should)_S 67 _t
(all)_S 67 _t
(provide)_S 67 _t
(the)_S 67 _t
(same)_S 67 _t
(high-level)_S 1200 5683 _m
(interface)_S 67 _t
(to)_S 67 _t
(application)_S 67 _t
(software.)_S 1800 5271 _m
/CourierR 400 _ff
(vrl_Boolean)_S 80 _t
(vrl_TimerInit\(void\);)_S 1800 5138 _m
(void)_S 80 _t
(vrl_TimerQuit\(void\);)_S 1800 5005 _m
(vrl_Time)_S 80 _t
(vrl_TimerRead\(void\);)_S 1800 4872 _m
(vrl_Time)_S 80 _t
(vrl_TimerGetTickRate\(void\);)_S 1800 4739 _m
(void)_S 80 _t
(vrl_TimerDelay\(vrl_Time)_S 80 _t
(milliseconds\);)_S 1200 4419 _m
/Times-RomanR 600 _ff
(These)_S 67 _t
(routines)_S 67 _t
(let)_S 67 _t
(you)_S 67 _t
(initialize,)_S 67 _t
(de-initialize)_S 67 _t
(and)_S 67 _t
(read)_S 67 _t
(the)_S 67 _t
(timer.)_S 134 _t
(The)_S 67 _t
(vrl_TimerGetTickRate\(\))_S 1200 4186 _m
(routine)_S 67 _t
(returns)_S 67 _t
(the)_S 67 _t
(number)_S 67 _t
(of)_S 67 _t
(ticks)_S 67 _t
(per)_S 67 _t
(second)_S 67 _t
(that)_S 67 _t
(the)_S 67 _t
(timer)_S 67 _t
(runs)_S 67 _t
(at.)_S 134 _t
(The)_S 67 _t
(higher)_S 67 _t
(this)_S 67 _t
(number)_S 1200 3953 _m
(is,)_S 67 _t
(the)_S 67 _t
(more)_S 67 _t
(accurate)_S 67 _t
(the)_S 67 _t
(frames/second)_S 67 _t
(calculations)_S 67 _t
(will)_S 67 _t
(be)_S 67 _t
(\(among)_S 67 _t
(other)_S 67 _t
(things\).)_S 134 _t
(It)_S 67 _t
(is)_S 1200 3720 _m
(expected)_S 67 _t
(that)_S 67 _t
(all)_S 67 _t
(future)_S 67 _t
(versions)_S 67 _t
(of)_S 67 _t
(AVRIL)_S 67 _t
(will)_S 67 _t
(use)_S 67 _t
(1000)_S 67 _t
(ticks)_S 67 _t
(per)_S 67 _t
(second,)_S 67 _t
(so)_S 67 _t
(that)_S 67 _t
(each)_S 67 _t
(tick)_S 67 _t
(is)_S 1200 3487 _m
(one)_S 67 _t
(millisecond.)_S 1800 3075 _m
/CourierR 400 _ff
(vrl_Boolean)_S 80 _t
(vrl_MouseInit\(void\);)_S 1800 2942 _m
(void)_S 80 _t
(vrl_MouseQuit\(void\);)_S 1800 2809 _m
(vrl_Boolean)_S 80 _t
(vrl_MouseReset\(void\);)_S 1800 2676 _m
(vrl_Boolean)_S 80 _t
(vrl_MouseRead\(int)_S 80 _t
(*x,)_S 80 _t
(int)_S 80 _t
(*y,)_S 80 _t
(unsigned)_S 80 _t
(int)_S 80 _t
(*buttons\);)_S 1800 2543 _m
(void)_S 80 _t
(vrl_MouseCursorHide\(void\);)_S 1800 2410 _m
(void)_S 80 _t
(vrl_MouseCursorShow\(void\);)_S 1800 2277 _m
(void)_S 80 _t
(vrl_MouseGetLimits\(int)_S 80 _t
(*min_x,)_S 80 _t
(int)_S 80 _t
(*max_x,)_S 80 _t
(int)_S 80 _t
(*min_y,)_S 80 _t
(int)_S 80 _t
(*max_y\);)_S 1800 2144 _m
(void)_S 80 _t
(vrl_MouseSetUsage\(int)_S 80 _t
(u\);)_S 1800 2011 _m
(int)_S 80 _t
(vrl_MouseGetUsage\(void\);)_S 1800 1878 _m
(void)_S 80 _t
(vrl_MouseSetPointer\(void)_S 80 _t
(*u\);)_S 1800 1745 _m
(void)_S 80 _t
(*vrl_MouseGetPointer\(void\);)_S 8800 1255 _m
/Times-RomanR 600 _ff
(43)_S /CourierR 400 _ff
_ep
_bp /Times-RomanR 600 _ff
0 13200 10200 _ornt
/_r { sflg {/_t {0 rmoveto}bdef /ron false def}
{ /_S /show load def /_t {0 rmoveto}bdef /ron false def}ifelse
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1200 11855 _m
(These)_S 67 _t
(routines)_S 67 _t
(let)_S 67 _t
(you)_S 67 _t
(initialize)_S 67 _t
(and)_S 67 _t
(read)_S 67 _t
(the)_S 67 _t
(mouse.)_S 134 _t
(Whenever)_S 67 _t
(you)_S 67 _t
(write)_S 67 _t
(to)_S 67 _t
(the)_S 67 _t
(currently)_S 1200 11622 _m
(visible)_S 67 _t
(page)_S 67 _t
(\(the)_S 67 _t
(viewpage\))_S 67 _t
(you)_S 67 _t
(should)_S 67 _t
(first)_S 67 _t
(call)_S 67 _t
(vrl_MouseCursorHide\(\))_S 67 _t
(to)_S 67 _t
(prevent)_S 67 _t
(the)_S 67 _t
(mouse)_S 1200 11389 _m
(from)_S 67 _t
(being)_S 67 _t
("squashed")_S 67 _t
(under)_S 67 _t
(a)_S 67 _t
(falling)_S 67 _t
(polygon.)_S 134 _t
(When)_S 67 _t
(you're)_S 67 _t
(finished)_S 67 _t
(updating)_S 67 _t
(the)_S 67 _t
(display,)_S 1200 11156 _m
(call)_S 67 _t
(vrl_MouseCursorShow\(\))_S 67 _t
(to)_S 67 _t
(let)_S 67 _t
(the)_S 67 _t
(rodent)_S 67 _t
(run)_S 67 _t
(free)_S 67 _t
(again.)_S 134 _t
(The)_S 67 _t
(vrl_SystemRender\(\))_S 1200 10923 _m
(routine,)_S 67 _t
(found)_S 67 _t
(in)_S 67 _t
(system.c,)_S 67 _t
(shows)_S 67 _t
(how)_S 67 _t
(these)_S 67 _t
(routines)_S 67 _t
(are)_S 67 _t
(used.)_S 134 _t
(The)_S 67 _t
(user)_S 67 _t
(interface)_S 67 _t
(routines)_S 67 _t
(do)_S 1200 10690 _m
(the)_S 67 _t
(calls)_S 67 _t
(to)_S 67 _t
(vrl_MouseCursorHide\(\))_S 67 _t
(and)_S 67 _t
(vrl_MouseCursorShow\(\),)_S 67 _t
(so)_S 67 _t
(you)_S 67 _t
(don't)_S 67 _t
(need)_S 67 _t
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(worry)_S 1200 10457 _m
(about)_S 67 _t
(them)_S 67 _t
(when)_S 67 _t
(you)_S 67 _t
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(those)_S 67 _t
(functions.)_S 134 _t
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(vrl_MouseGetLimits\(\))_S 67 _t
(function)_S 67 _t
(lets)_S 67 _t
(you)_S 67 _t
(find)_S 1200 10224 _m
(out)_S 67 _t
(the)_S 67 _t
(current)_S 67 _t
(range)_S 67 _t
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(possible)_S 67 _t
(mouse)_S 67 _t
(X)_S 67 _t
(and)_S 67 _t
(Y)_S 67 _t
(values.)_S 1800 9758 _m
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(the)_S 67 _t
(mouse)_S 67 _t
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(a)_S 67 _t
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(as)_S 67 _t
(a)_S 67 _t
(6D)_S 67 _t
(input)_S 1200 9525 _m
(device,)_S 67 _t
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(vrl_MouseSetUsage\(\))_S 67 _t
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(vrl_Device)_S 67 _t
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(that)_S 67 _t
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(vrl_MouseSetPointer\(\))_S 67 _t
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(vrl_MouseGetPointer\(\))_S 67 _t
(calls)_S 1200 7894 _m
(do;)_S 67 _t
(they)_S 67 _t
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(get)_S 67 _t
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(pointer)_S 67 _t
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(vrl_KeyboardCheck\(void\);)_S 1800 7349 _m
(unsigned)_S 80 _t
(int)_S 80 _t
(vrl_KeyboardRead\(void\);)_S /Times-RomanR 600 _ff
1200 6929 _m
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(vrl_KeyboardCheck\(\))_S 67 _t
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(key)_S 67 _t
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(vrl_KeyboardRead\(\))_S 67 _t
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(avrilkey.h)_S 67 _t
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/Times-BoldR 720 _ff
(Display)_S 80 _t
(Routines)_S 2960 5967 _m
/Times-RomanR 600 _ff
1800 5491 _m
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(routines.)_S 1200 4529 _m
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(PCX)_S 80 _t
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/Times-RomanR 600 _ff
1200 4053 _m
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(format:)_S 1800 3641 _m
/CourierR 400 _ff
(vrl_Boolean)_S 80 _t
(vrl_ReadPCX\(FILE)_S 80 _t
(*in\);)_S 1800 3508 _m
(vrl_Boolean)_S 80 _t
(vrl_WritePCX\(FILE)_S 80 _t
(*out\);)_S /Times-RomanR 600 _ff
1200 3088 _m
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(drawing)_S 67 _t
(page)_S 67 _t
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(disk)_S 67 _t
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(a)_S 67 _t
(PCX)_S 67 _t
(file.)_S 8800 1255 _m
(44)_S _ep
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1200 11825 _m
/Times-BoldR 720 _ff
(Devices)_S 1973 11825 _m
/Times-RomanR 600 _ff
1200 11349 _m
(AVRIL)_S 67 _t
(has)_S 67 _t
(support)_S 67 _t
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(input)_S 67 _t
(devices)_S 67 _t
(providing)_S 67 _t
(multiple)_S 67 _t
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(\(DOF\).)_S 134 _t
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(fact,)_S 67 _t
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(channels.)_S 1800 10417 _m
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(a)_S 67 _t
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(AVRIL,)_S 67 _t
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(a)_S 1200 10184 _m
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(close)_S 67 _t
(all)_S 67 _t
(open)_S 1200 9951 _m
(devices)_S 67 _t
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(vrl_DeviceCloseAll\(\),)_S 67 _t
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(atexit\(\))_S 67 _t
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(vrl_SystemStartup\(\).)_S 1800 9306 _m
/CourierR 400 _ff
(vrl_Device)_S 80 _t
(*vrl_DeviceOpen\(vrl_DeviceDriverFunction)_S 80 _t
(fn,)_S 80 _t
(vrl_SerialPort)_S 80 _t
(*port\);)_S 1800 9173 _m
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(vrl_DeviceClose\(vrl_Device)_S 80 _t
(*device\);)_S 1800 9040 _m
(void)_S 80 _t
(vrl_DeviceCloseAll\(void\);)_S /Times-RomanR 600 _ff
1200 8618 _m
(Most)_S 67 _t
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(devices)_S 67 _t
(communicate)_S 67 _t
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(a)_S 67 _t
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5802 8618 _m
/Times-ItalicR 600 _ff
(port)_S 6136 8618 _m
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67 _t
(parameter)_S 67 _t
(is)_S 67 _t
(a)_S 67 _t
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(such)_S 67 _t
(a)_S 1200 8385 _m
(port)_S 67 _t
(that's)_S 67 _t
(been)_S 67 _t
(opened)_S 67 _t
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(vrl_SerialOpen\(\).)_S 134 _t
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(on)_S 67 _t
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(more)_S 1200 8152 _m
(details.)_S 134 _t
(Devices)_S 67 _t
(\(such)_S 67 _t
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(keyboard\))_S 67 _t
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(the)_S 1200 7917 _m
/Times-ItalicR 600 _ff
(port)_S 1533 7917 _m
/Times-RomanR 600 _ff
67 _t
(parameter.)_S 134 _t
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2962 7917 _m
/Times-ItalicR 600 _ff
(fn)_S 3118 7917 _m
/Times-RomanR 600 _ff
67 _t
(parameter)_S 67 _t
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(a)_S 67 _t
(function)_S 67 _t
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(these)_S 67 _t
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(popular)_S 67 _t
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(it's)_S 67 _t
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(your)_S 67 _t
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(if)_S 67 _t
(you)_S 67 _t
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(unusual)_S 1200 7451 _m
(devices)_S 67 _t
(you)_S 67 _t
(wish)_S 67 _t
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(support.)_S 134 _t
(They)_S 67 _t
(are)_S 67 _t
(listed)_S 67 _t
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(avrildrv.h,)_S 67 _t
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(the)_S 67 _t
(cfg.c)_S 67 _t
(file.)_S 1800 6985 _m
(Devices)_S 67 _t
(can)_S 67 _t
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(example,)_S 67 _t
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(a)_S 1200 6752 _m
(head-tracker)_S 67 _t
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(file,)_S 67 _t
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(likely\))_S 1200 6519 _m
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(be)_S 67 _t
(the)_S 67 _t
(device)_S 67 _t
(used)_S 67 _t
(for)_S 67 _t
(head)_S 67 _t
(tracking)_S 67 _t
(\(e.g.)_S 67 _t
(an)_S 67 _t
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(a)_S 67 _t
(Logitech)_S 67 _t
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1200 6286 _m
(You)_S 67 _t
(can)_S 67 _t
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(and)_S 67 _t
(query)_S 67 _t
(the)_S 67 _t
(nickname)_S 67 _t
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(device,)_S 67 _t
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(functions:)_S 1800 5587 _m
/CourierR 400 _ff
(char)_S 80 _t
(*vrl_DeviceGetNickname\(vrl_Device)_S 80 _t
(*device\))_S 5560 5587 _m
/Times-RomanR 600 _ff
(;)_S 1800 5354 _m
(void)_S 67 _t
(vrl_DeviceSetNickname\(vrl_Device)_S 67 _t
(*device,)_S 67 _t
(char)_S 67 _t
(*nickname\);)_S 1800 5121 _m
(vrl_Device)_S 67 _t
(*vrl_DeviceFind\(char)_S 67 _t
(*nickname\);)_S 1200 4655 _m
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(a)_S 67 _t
(device)_S 67 _t
(has)_S 67 _t
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(many)_S 67 _t
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(many)_S 67 _t
(two-state)_S 67 _t
(buttons)_S 67 _t
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/CourierR 400 _ff
(int)_S 80 _t
(vrl_DeviceGetNchannels\(vrl_Device)_S 80 _t
(*device\);)_S 1800 3877 _m
(int)_S 80 _t
(vrl_DeviceGetNButtons\(vrl_Device)_S 80 _t
(*device\);)_S /Times-RomanR 600 _ff
1200 3457 _m
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(function)_S 1200 3224 _m
(vrl_DeviceReset\(\))_S 67 _t
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(opened.)_S 1800 2812 _m
/CourierR 400 _ff
(int)_S 80 _t
(vrl_DeviceReset\(vrl_Device)_S 80 _t
(*device\);)_S /Times-RomanR 600 _ff
1200 2392 _m
(Devices)_S 67 _t
(should)_S 67 _t
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1200 11855 _m
(vrl_DevicePoll\(\),)_S 67 _t
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(acquired.)_S 134 _t
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(devices)_S 1200 11622 _m
(can)_S 67 _t
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(vrl_DevicePollAll\(\).)_S 1800 11210 _m
/CourierR 400 _ff
(int)_S 80 _t
(vrl_DevicePoll\(vrl_Device)_S 80 _t
(*device\);)_S 1800 11077 _m
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(vrl_DevicePollAll\(void\);)_S /Times-RomanR 600 _ff
1200 10657 _m
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(vrl_DeviceGetValue\(\),)_S 67 _t
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(vrl_DeviceGetValue\(vrl_Device)_S 80 _t
(*device,)_S 80 _t
(int)_S 80 _t
(channel\);)_S 1800 9879 _m
(vrl_unsigned32bit)_S 80 _t
(vrl_DeviceGetButtons\(vrl_Device)_S 80 _t
(*device\);)_S /Times-RomanR 600 _ff
1200 9459 _m
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(and)_S 67 _t
(ZROT,)_S 67 _t
(provide)_S 67 _t
(the)_S 67 _t
(rotation)_S 67 _t
(of)_S 67 _t
(the)_S 67 _t
(device)_S 67 _t
(around)_S 67 _t
(each)_S 67 _t
(of)_S 67 _t
(the)_S 67 _t
(three)_S 67 _t
(axes.)_S 67 _t
1200 7828 _m
(Every)_S 67 _t
(device)_S 67 _t
(is)_S 67 _t
(expected)_S 67 _t
(to)_S 67 _t
(provide)_S 67 _t
(at)_S 67 _t
(least)_S 67 _t
(those)_S 67 _t
(six)_S 67 _t
(values;)_S 67 _t
(others,)_S 67 _t
(such)_S 67 _t
(as)_S 67 _t
(glove-like)_S 67 _t
(input)_S 1200 7595 _m
(devices,)_S 67 _t
(may)_S 67 _t
(have)_S 67 _t
(a)_S 67 _t
(separate)_S 67 _t
(channel)_S 67 _t
(for)_S 67 _t
(the)_S 67 _t
(flexion)_S 67 _t
(of)_S 67 _t
(each)_S 67 _t
(finger.)_S 1800 7129 _m
(You)_S 67 _t
(can)_S 67 _t
(determine)_S 67 _t
(whether)_S 67 _t
(a)_S 67 _t
(channel's)_S 67 _t
(value)_S 67 _t
(has)_S 67 _t
(changed)_S 67 _t
(since)_S 67 _t
(the)_S 67 _t
(previous)_S 67 _t
(poll)_S 67 _t
(by)_S 1200 6896 _m
(using)_S 67 _t
(vrl_DeviceChannelGetChanged\(\),)_S 67 _t
(and)_S 67 _t
(you)_S 67 _t
(can)_S 67 _t
(use)_S 67 _t
(vrl_DeviceGetChangedButtons\(\))_S 67 _t
(to)_S 1200 6663 _m
(obtain)_S 67 _t
(a)_S 67 _t
(vrl_unsigned32bit)_S 67 _t
(word)_S 67 _t
(whose)_S 67 _t
(bits)_S 67 _t
(indicate)_S 67 _t
(whether)_S 67 _t
(the)_S 67 _t
(corresponding)_S 67 _t
(buttons)_S 67 _t
(have)_S 1200 6430 _m
(changed)_S 67 _t
(state)_S 67 _t
(since)_S 67 _t
(the)_S 67 _t
(previous)_S 67 _t
(poll.)_S 1800 6018 _m
/CourierR 400 _ff
(vrl_Boolean)_S 80 _t
(vrl_DeviceGetChanged\(vrl_Device)_S 80 _t
(*device,)_S 80 _t
(int)_S 80 _t
(channel\);)_S 1800 5885 _m
(vrl_unsigned32bit)_S 80 _t
(vrl_DeviceGetChangedButtons\(vrl_Device)_S 80 _t
(*device\);)_S /Times-RomanR 600 _ff
1200 5465 _m
(Note)_S 67 _t
(that)_S 67 _t
("previous)_S 67 _t
(poll")_S 67 _t
(means)_S 67 _t
(the)_S 67 _t
(one)_S 67 _t
(prior)_S 67 _t
(to)_S 67 _t
(the)_S 67 _t
(most)_S 67 _t
(recent)_S 67 _t
(one;)_S 67 _t
(in)_S 67 _t
(other)_S 67 _t
(words,)_S 67 _t
(you)_S 1200 5232 _m
(would)_S 67 _t
(check)_S 67 _t
(the)_S 67 _t
(changed)_S 67 _t
(flags)_S 67 _t
(immediately)_S 67 _t
(after)_S 67 _t
(a)_S 67 _t
(call)_S 67 _t
(to)_S 67 _t
(vrl_DevicePoll\(\))_S 67 _t
(or)_S 1200 4999 _m
(vrl_DevicePollAll\(\))_S 67 _t
(in)_S 67 _t
(order)_S 67 _t
(to)_S 67 _t
(see)_S 67 _t
(if)_S 67 _t
(they've)_S 67 _t
(changed)_S 67 _t
(since)_S 67 _t
(the)_S 67 _t
(last)_S 67 _t
(time)_S 67 _t
(through.)_S 1800 4533 _m
(Some)_S 67 _t
(devices)_S 67 _t
(\(such)_S 67 _t
(as)_S 67 _t
(the)_S 67 _t
(Logitech)_S 67 _t
(Cyberman)_S 67 _t
(and)_S 67 _t
(the)_S 67 _t
(Global)_S 67 _t
(Devices)_S 67 _t
(Controller\))_S 67 _t
(are)_S 1200 4300 _m
(capable)_S 67 _t
(of)_S 67 _t
(output)_S 67 _t
(as)_S 67 _t
(well)_S 67 _t
(as)_S 67 _t
(input.)_S 134 _t
(You)_S 67 _t
(can)_S 67 _t
(find)_S 67 _t
(out)_S 67 _t
(the)_S 67 _t
(number)_S 67 _t
(of)_S 67 _t
(output)_S 67 _t
(channels)_S 67 _t
(a)_S 67 _t
(device)_S 1200 4067 _m
(has,)_S 67 _t
(and)_S 67 _t
(set)_S 67 _t
(a)_S 67 _t
(particular)_S 67 _t
(channel)_S 67 _t
(to)_S 67 _t
(a)_S 67 _t
(particular)_S 67 _t
(value,)_S 67 _t
(using)_S 67 _t
(the)_S 67 _t
(following)_S 67 _t
(two)_S 67 _t
(functions:)_S 1800 3655 _m
/CourierR 400 _ff
(void)_S 80 _t
(vrl_DeviceOutput\(vrl_Device)_S 80 _t
(*device,)_S 80 _t
(int)_S 80 _t
(channel,)_S 80 _t
(vrl_Scalar)_S 80 _t
(value\);)_S 1800 3522 _m
(int)_S 80 _t
(vrl_DeviceGetNOutputChannels\(vrl_Device)_S 80 _t
(*device\);)_S /Times-RomanR 600 _ff
1200 3102 _m
(There)_S 67 _t
(are)_S 67 _t
(some)_S 67 _t
(devices)_S 67 _t
(that)_S 67 _t
(shouldn't)_S 67 _t
(be)_S 67 _t
(polled)_S 67 _t
(too)_S 67 _t
(frequently)_S 67 _t
(\(possibly)_S 67 _t
(because)_S 67 _t
(the)_S 67 _t
(polling)_S 1200 2869 _m
(takes)_S 67 _t
(a)_S 67 _t
(long)_S 67 _t
(time\).)_S 134 _t
(Devices)_S 67 _t
(drivers)_S 67 _t

(typically)_S 67 _t
(set)_S 67 _t
(their)_S 67 _t
(own)_S 67 _t
(polling)_S 67 _t
(frequency)_S 67 _t
(when)_S 67 _t
(they're)_S 1200 2636 _m
(initialized,)_S 67 _t
(but)_S 67 _t
(you)_S 67 _t
(can)_S 67 _t
(read)_S 67 _t
(and)_S 67 _t
(set)_S 67 _t
(the)_S 67 _t
(polling)_S 67 _t
(period)_S 67 _t
(using)_S 67 _t
(these)_S 67 _t
(two)_S 67 _t
(functions:)_S /CourierR 400 _ff
1800 2091 _m
(void)_S 80 _t
(vrl_DeviceSetPeriod\(vrl_Device)_S 80 _t
(*device,)_S 80 _t
(vrl_Time)_S 80 _t
(period\);)_S 1800 1958 _m
(vrl_Time)_S 80 _t
(vrl_DeviceGetPeriod\(vrl_Device)_S 80 _t
(*device\);)_S /Times-RomanR 600 _ff
8800 1255 _m
(46)_S _ep
_bp /Times-RomanR 600 _ff
0 13200 10200 _ornt
/_r { sflg {/_t {0 rmoveto}bdef /ron false def}
{ /_S /show load def /_t {0 rmoveto}bdef /ron false def}ifelse
}bdef
1200 11855 _m
(Some)_S 67 _t
(devices)_S 67 _t
(provide)_S 67 _t
(fewer)_S 67 _t
(than)_S 67 _t
(six)_S 67 _t
(degrees)_S 67 _t
(of)_S 67 _t
(freedom;)_S 67 _t
(in)_S 67 _t
(particular,)_S 67 _t
(some)_S 67 _t
(devices)_S 67 _t
(\(such)_S 67 _t
(as)_S 1200 11622 _m
(sourceless)_S 67 _t
(head)_S 67 _t
(trackers\))_S 67 _t
(provide)_S 67 _t
(only)_S 67 _t
(rotational)_S 67 _t
(information,)_S 67 _t
(while)_S 67 _t
(others)_S 67 _t
(might)_S 67 _t
(provide)_S 67 _t
(only)_S 1200 11389 _m
(positional)_S 67 _t
(information.)_S 134 _t
(In)_S 67 _t
(addition,)_S 67 _t
(some)_S 67 _t
(axes)_S 67 _t
(are)_S 67 _t
(absolute,)_S 67 _t
(while)_S 67 _t
(others)_S 67 _t
(are)_S 67 _t
(relative;)_S 67 _t
(for)_S 1200 11154 _m
(example,)_S 67 _t
(a)_S 67 _t
(magnetic)_S 67 _t
(tracker)_S 67 _t
(provides)_S 67 _t
(absolute)_S 67 _t
(rotation,)_S 67 _t
(whereas)_S 67 _t
(a)_S 67 _t
(joystick)_S 67 _t
(provides)_S 67 _t
(a)_S 67 _t
8291 11154 _m
/Times-ItalicR 600 _ff
(rate)_S 8614 11154 _m
/Times-RomanR 600 _ff
67 _t
(of)_S 1200 10921 _m
(rotation.)_S 134 _t
(Two)_S 67 _t
(functions)_S 67 _t
(are)_S 67 _t
(used)_S 67 _t
(to)_S 67 _t
(determine)_S 67 _t
(what)_S 67 _t
(a)_S 67 _t
(device's)_S 67 _t
(suggested)_S 67 _t
(modes)_S 67 _t
(of)_S 67 _t
(operation)_S 1200 10688 _m
(are)_S 67 _t
(for)_S 67 _t
(translation)_S 67 _t
(and)_S 67 _t
(rotation:)_S 1800 10276 _m
/CourierR 400 _ff
(vrl_DeviceMotionMode)_S 80 _t
(vrl_DeviceGetRotationMode\(vrl_Device)_S 80 _t
(*device\);)_S 1800 10143 _m
(vrl_DeviceMotionMode)_S 80 _t
(vrl_DeviceGetTranslationMode\(vrl_Device)_S 80 _t
(*device\);)_S /Times-RomanR 600 _ff
1200 9723 _m
(Each)_S 67 _t
(of)_S 67 _t
(these)_S 67 _t
(two)_S 67 _t
(functions)_S 67 _t
(returns)_S 67 _t
(one)_S 67 _t
(of)_S 67 _t
(the)_S 67 _t
(values)_S 67 _t
(VRL_MOTION_NONE)_S 67 _t
(\(i.e.,)_S 67 _t
(this)_S 67 _t
(type)_S 1200 9490 _m
(of)_S 67 _t
(motion)_S 67 _t
(is)_S 67 _t
(not)_S 67 _t
(reported)_S 67 _t
(by)_S 67 _t
(this)_S 67 _t
(device\),)_S 67 _t
(VRL_MOTION_RELATIVE)_S 67 _t
(\(i.e.)_S 67 _t
(this)_S 67 _t
(device)_S 1200 9257 _m
(provides)_S 67 _t
(relative)_S 67 _t
(information\))_S 67 _t
(or)_S 67 _t
(VRL_MOTION_ABSOLUTE)_S 67 _t
(\(this)_S 67 _t
(device)_S 67 _t
(provides)_S 67 _t
(absolute)_S 1200 9024 _m
(information\).)_S 1800 8556 _m
(It's)_S 67 _t
(important)_S 67 _t
(to)_S 67 _t
(note)_S 67 _t
(that)_S 67 _t
(these)_S 67 _t
(are)_S 67 _t
(all)_S 67 _t
5036 8556 _m
/Times-ItalicR 600 _ff
(suggestions)_S 5969 8556 _m
/Times-RomanR 600 _ff
67 _t
(from)_S 67 _t
(the)_S 67 _t
(device)_S 67 _t
(driver)_S 67 _t
(as)_S 67 _t
(to)_S 67 _t
(how)_S 67 _t
(it)_S 1200 8323 _m
(should)_S 67 _t
(be)_S 67 _t
(used;)_S 67 _t
(you)_S 67 _t
(can)_S 67 _t
(still)_S 67 _t
(choose,)_S 67 _t
(in)_S 67 _t
(your)_S 67 _t
(application,)_S 67 _t
(to)_S 67 _t
(make)_S 67 _t
(any)_S 67 _t
(device)_S 67 _t
(either)_S 67 _t
(absolute)_S 1200 8090 _m
(or)_S 67 _t
(relative.)_S 1800 7624 _m
(To)_S 67 _t
(understand)_S 67 _t
(what)_S 67 _t
(these)_S 67 _t
(next)_S 67 _t
(few)_S 67 _t
(functions)_S 67 _t
(do,)_S 67 _t
(it's)_S 67 _t
(important)_S 67 _t
(to)_S 67 _t
(understand)_S 67 _t
(what)_S 1200 7391 _m
(kind)_S 67 _t
(of)_S 67 _t
(processing)_S 67 _t
(the)_S 67 _t
(system)_S 67 _t
(does)_S 67 _t
(on)_S 67 _t
(the)_S 67 _t
(values)_S 67 _t
(once)_S 67 _t
(it)_S 67 _t
(receives)_S 67 _t
(them)_S 67 _t
(from)_S 67 _t
(the)_S 67 _t
(device.)_S 67 _t
1200 7158 _m
(Each)_S 67 _t
(channel)_S 67 _t
(can)_S 67 _t
(be)_S 67 _t
(in)_S 67 _t
(either)_S 67 _t
("accumulate")_S 67 _t
(or)_S 67 _t
("non-accumulate")_S 67 _t
(mode.)_S 134 _t
(For)_S 67 _t
(accumulating)_S 1200 6925 _m
(devices,)_S 67 _t
(the)_S 67 _t
(value)_S 67 _t
(is)_S 67 _t
(first)_S 67 _t
(checked)_S 67 _t
(to)_S 67 _t
(see)_S 67 _t
(how)_S 67 _t
(close)_S 67 _t
(it)_S 67 _t
(is)_S 67 _t
(to)_S 67 _t
(zero;)_S 67 _t
(if)_S 67 _t
(it's)_S 67 _t
(less)_S 67 _t
(than)_S 67 _t
(a)_S 67 _t
(channel-)_S 1200 6690 _m
(specific)_S 67 _t
1889 6690 _m
/Times-ItalicR 600 _ff
(deadzone)_S 2644 6690 _m
/Times-RomanR 600 _ff
67 _t
(value,)_S 67 _t
(then)_S 67 _t
(the)_S 67 _t
(value)_S 67 _t
(is)_S 67 _t
(considered)_S 67 _t
(to)_S 67 _t
(be)_S 67 _t
(zero.)_S 134 _t
(For)_S 67 _t
(non-accumulating)_S 1200 6457 _m
(devices,)_S 67 _t
(the)_S 67 _t
(deadzone)_S 67 _t
(value)_S 67 _t
(is)_S 67 _t
(treated)_S 67 _t
(as)_S 67 _t
(a)_S 67 _t
(minimum)_S 67 _t
(change)_S 67 _t
(from)_S 67 _t
(the)_S 67 _t
(most)_S 67 _t
(recently)_S 67 _t
(read)_S 1200 6224 _m
(value)_S 67 _t
(for)_S 67 _t
(this)_S 67 _t
(channel;)_S 67 _t
(a)_S 67 _t
(device)_S 67 _t
(that)_S 67 _t
(moves)_S 67 _t
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(less)_S 67 _t
(than)_S 67 _t
(the)_S 67 _t
(deadzone)_S 67 _t
(amount)_S 67 _t
(between)_S 1200 5991 _m
(consecutive)_S 67 _t
(polls)_S 67 _t
(will)_S 67 _t
(not)_S 67 _t
(change)_S 67 _t
(in)_S 67 _t
(value.)_S 1800 5525 _m
(The)_S 67 _t
(value)_S 67 _t
(is)_S 67 _t
(then)_S 67 _t
(scaled)_S 67 _t
(so)_S 67 _t
(that)_S 67 _t
(its)_S 67 _t
(maximum)_S 67 _t
(value)_S 67 _t
(is)_S 67 _t
(less)_S 67 _t
(than)_S 67 _t
(a)_S 67 _t
(channel-specific)_S 1200 5290 _m
(scale)_S 67 _t
(value.)_S 134 _t
(For)_S 67 _t
(channels)_S 67 _t
(with)_S 67 _t
(the)_S 67 _t
4130 5290 _m
/Times-ItalicR 600 _ff
(accumulate)_S 5052 5290 _m
/Times-RomanR 600 _ff
67 _t
(flag)_S 67 _t
(set,)_S 67 _t
(the)_S 67 _t
(value)_S 67 _t
(is)_S 67 _t
(also)_S 67 _t
(scaled)_S 67 _t
(by)_S 67 _t
(the)_S 67 _t
(elapsed)_S 1200 5055 _m
(time;)_S 67 _t
(the)_S 67 _t
1990 5055 _m
/Times-ItalicR 600 _ff
(scale)_S 2401 5055 _m
/Times-RomanR 600 _ff
67 _t
(for)_S 67 _t
(such)_S 67 _t
(channels)_S 67 _t
(is)_S 67 _t
(treated)_S 67 _t
(as)_S 67 _t
(the)_S 67 _t
(maximum)_S 67 _t
(rate)_S 67 _t
(of)_S 67 _t
(change)_S 67 _t
(per)_S 67 _t
(second.)_S 1200 4587 _m
(The)_S 67 _t
1578 4587 _m
/Times-ItalicR 600 _ff
(scale)_S 1989 4587 _m
/Times-RomanR 600 _ff
67 _t
(and)_S 67 _t
2412 4587 _m
/Times-ItalicR 600 _ff
(deadzone)_S 3167 4587 _m
/Times-RomanR 600 _ff
67 _t
(values)_S 67 _t
(can)_S 67 _t
(be)_S 67 _t
(set)_S 67 _t
(and)_S 67 _t
(read)_S 67 _t
(using)_S 67 _t
(the)_S 67 _t
(following)_S 67 _t
(calls:)_S 1800 4175 _m
/CourierR 400 _ff
(vrl_Scalar)_S 80 _t
(vrl_DeviceGetDeadzone\(vrl_Device)_S 80 _t
(*device,)_S 80 _t
(int)_S 80 _t
(channel\);)_S 1800 4042 _m
(void)_S 80 _t
(vrl_DeviceSetDeadzone\(vrl_Device)_S 80 _t
(*device,)_S 80 _t
(int)_S 80 _t
(channel,)_S 80 _t
(vrl_Scalar)_S 80 _t
(value\);)_S 1800 3909 _m
(vrl_Scalar)_S 80 _t
(vrl_DeviceGetScale\(vrl_Device)_S 80 _t
(*device,)_S 80 _t
(int)_S 80 _t
(channel\);)_S 1800 3776 _m
(vrl_DeviceSetScale\(vrl_Device)_S 80 _t
(*device,)_S 80 _t
(int)_S 80 _t
(channel,)_S 80 _t
(vrl_Scalar)_S 80 _t
(value\);)_S 1800 3643 _m
(vrl_Boolean)_S 80 _t
(vrl_DeviceGetAccumulate\(vrl_Device)_S 80 _t
(*device,)_S 80 _t
(int)_S 80 _t
(channel\);)_S 1800 3510 _m
(void)_S 80 _t
(vrl_DeviceSetAccumulate\(vrl_Device)_S 80 _t
(*device,)_S 80 _t
(int)_S 80 _t
(channel,)_S 80 _t
(vrl_Boolean)_S 80 _t
(value\);)_S /Times-RomanR 600 _ff
1200 3090 _m
(If)_S 67 _t
(you)_S 67 _t
(like,)_S 67 _t
(you)_S 67 _t
(can)_S 67 _t
(bypass)_S 67 _t
(all)_S 67 _t
(that)_S 67 _t
(processing)_S 67 _t
(and)_S 67 _t
(obtain)_S 67 _t
(the)_S 67 _t
(actual,)_S 67 _t
("raw")_S 67 _t
(value)_S 67 _t
(being)_S 1200 2857 _m
(reported)_S 67 _t
(by)_S 67 _t
(the)_S 67 _t
(device)_S 67 _t
(by)_S 67 _t
(calling)_S 1800 2445 _m
/CourierR 400 _ff
(vrl_Scalar)_S 80 _t
(vrl_DeviceGetRawValue\(vrl_Device)_S 80 _t
(*device,)_S 80 _t
(int)_S 80 _t
(channel\);)_S /Times-RomanR 600 _ff
1200 2025 _m
(Devices)_S 67 _t
(are)_S 67 _t
(kept)_S 67 _t
(internally)_S 67 _t
(in)_S 67 _t
(a)_S 67 _t
(linked)_S 67 _t
(list;)_S 67 _t
(if)_S 67 _t
(you)_S 67 _t
(want)_S 67 _t
(to)_S 67 _t
(iterate)_S 67 _t
(over)_S 67 _t
(the)_S 67 _t
(list,)_S 67 _t
(you)_S 67 _t
(can)_S 67 _t
(do)_S 67 _t
(it)_S 1200 1792 _m
(with)_S 67 _t
(the)_S 67 _t
(following)_S 67 _t
(two)_S 67 _t
(functions:)_S 8800 1255 _m
(47)_S _ep
_bp /CourierR 400 _ff
0 13200 10200 _ornt
/_r { sflg {/_t {0 rmoveto}bdef /ron false def}
{ /_S /show load def /_t {0 rmoveto}bdef /ron false def}ifelse
}bdef
1800 11909 _m
(vrl_Device)_S 80 _t
(*vrl_DeviceGetFirst\(void\);)_S 1800 11776 _m
(vrl_Device)_S 80 _t
(*)_S 80 _t
(vrl_DeviceGetNext\(vrl_Device)_S 80 _t
(*device\);)_S /Times-RomanR 600 _ff
1200 11356 _m
(You)_S 67 _t
(can)_S 67 _t
(retrieve)_S 67 _t
(a)_S 67 _t
(human-readable)_S 67 _t
(description)_S 67 _t
(of)_S 67 _t
(a)_S 67 _t
(device)_S 67 _t
(by)_S 67 _t
(calling)_S 67 _t
(the)_S 67 _t
(function)_S 1800 10944 _m
/CourierR 400 _ff
(char)_S 80 _t
(*vrl_DeviceGetDesc\(vrl_Device)_S 80 _t
(*device\);)_S /Times-RomanR 600 _ff
1200 10524 _m
(You)_S 67 _t
(can)_S 67 _t
(produce)_S 67 _t
(output)_S 67 _t
(on)_S 67 _t
(any)_S 67 _t
(of)_S 67 _t
(the)_S 67 _t
(device's)_S 67 _t
(channels)_S 67 _t
(by)_S 67 _t
(calling)_S 1800 10112 _m
/CourierR 400 _ff
(void)_S 80 _t
(vrl_DeviceOutput\(vrl_Device)_S 80 _t
(*device,)_S 80 _t
(int)_S 80 _t
(channel,)_S 80 _t
(vrl_Scalar)_S 80 _t
(value\);)_S /Times-RomanR 600 _ff
1200 9690 _m
(The)_S 67 _t
1578 9690 _m
/Times-ItalicR 600 _ff
(channel)_S 2211 9690 _m
/Times-RomanR 600 _ff
67 _t
(and)_S 67 _t
(the)_S 67 _t
2945 9690 _m
/Times-ItalicR 600 _ff
(value)_S 3379 9690 _m
/Times-RomanR 600 _ff
67 _t
(\(which)_S 67 _t
(ought)_S 67 _t
(to)_S 67 _t
(be)_S 67 _t
(in)_S 67 _t
(the)_S 67 _t
(range)_S 67 _t
(0)_S 67 _t
(to)_S 67 _t
(255\))_S 67 _t
(are)_S 67 _t
(passed)_S 67 _t
(along)_S 67 _t
(to)_S 67 _t
(the)_S 1200 9457 _m
(device;)_S 67 _t
(if)_S 67 _t
(it's)_S 67 _t
(capable)_S 67 _t
(of)_S 67 _t
(outputting)_S 67 _t
(that)_S 67 _t
(value)_S 67 _t
(on)_S 67 _t
(that)_S 67 _t
(channel,)_S 67 _t
(it)_S 67 _t
(does.)_S 134 _t
(Not)_S 67 _t
(all)_S 67 _t
(devices)_S 67 _t
(are)_S 1200 9224 _m
(capable)_S 67 _t
(of)_S 67 _t
(producing)_S 67 _t
(output,)_S 67 _t
(and)_S 67 _t
(those)_S 67 _t
(that)_S 67 _t

(can)_S 67 _t
(have)_S 67 _t
(a)_S 67 _t
(variety)_S 67 _t
(of)_S 67 _t
(different)_S 67 _t
(ways)_S 67 _t
(of)_S 67 _t
(doing)_S 67 _t
(it)_S 1200 8991 _m
(\(including)_S 67 _t
(sound)_S 67 _t
(and)_S 67 _t
(vibration\).)_S 134 _t
(All)_S 67 _t
(you)_S 67 _t
(can)_S 67 _t
(be)_S 67 _t
(sure)_S 67 _t
(of)_S 67 _t
(is)_S 67 _t
(that)_S 67 _t
(a)_S 67 _t
(value)_S 67 _t
(of)_S 67 _t
(zero)_S 67 _t
(will)_S 67 _t
(turn)_S 67 _t
(the)_S 1200 8758 _m
(output)_S 67 _t
(off,)_S 67 _t
(and)_S 67 _t
(a)_S 67 _t
(non-zero)_S 67 _t
(value)_S 67 _t
(will)_S 67 _t
(turn)_S 67 _t
(it)_S 67 _t
(on.)_S 1800 8292 _m
(Some)_S 67 _t
(2D)_S 67 _t
(devices)_S 67 _t
(can)_S 67 _t
(map)_S 67 _t
(their)_S 67 _t
(two)_S 67 _t
(axes)_S 67 _t
(into)_S 67 _t
(6)_S 67 _t
(degrees)_S 67 _t
(of)_S 67 _t
(freedom)_S 67 _t
(using)_S 1200 8059 _m
(combinations)_S 67 _t
(of)_S 67 _t
(buttons.)_S 134 _t
(There)_S 67 _t
(are)_S 67 _t
(two)_S 67 _t
(functions)_S 67 _t
(to)_S 67 _t
(get)_S 67 _t
(and)_S 67 _t
(set)_S 67 _t
(the)_S 67 _t
(mapping)_S 67 _t
(tables)_S 67 _t
(they)_S 67 _t
(use:)_S 1800 7647 _m
/CourierR 400 _ff
(void)_S 80 _t
(vrl_DeviceSetButtonmap\(vrl_Device)_S 80 _t
(*device,)_S 80 _t
(vrl_DeviceButtonmap)_S 80 _t
(*b\);)_S 1800 7514 _m
(vrl_DeviceButtonmap)_S 80 _t
(*vrl_DeviceGetButtonmap\(vrl_Device)_S 80 _t
(*device\);)_S /Times-RomanR 600 _ff
1200 7094 _m
(Buttonmaps)_S 67 _t
(are)_S 67 _t
(a)_S 67 _t
(fairly)_S 67 _t
(complex)_S 67 _t
(topic,)_S 67 _t
(and)_S 67 _t
(are)_S 67 _t
(discussed)_S 67 _t
(in)_S 67 _t
(more)_S 67 _t
(detail)_S 67 _t
(in)_S 67 _t
(the)_S 67 _t
(appendix)_S 67 _t
(on)_S 1200 6861 _m
(writing)_S 67 _t
(device)_S 67 _t
(drivers.)_S 1200 6365 _m
/Times-BoldR 720 _ff
(Serial)_S 80 _t
(Ports)_S 2427 6365 _m
/Times-RomanR 600 _ff
1200 5889 _m
(Since)_S 67 _t
(many)_S 67 _t
(input)_S 67 _t
(devices)_S 67 _t
(use)_S 67 _t
(serial)_S 67 _t
(communications,)_S 67 _t
(AVRIL)_S 67 _t
(contains)_S 67 _t
(a)_S 67 _t
(library)_S 67 _t
(of)_S 67 _t
(serial)_S 67 _t
(port)_S 1200 5656 _m
(routines.)_S 134 _t
(These)_S 67 _t
(will)_S 67 _t
(mostly)_S 67 _t
(be)_S 67 _t
(of)_S 67 _t
(interest)_S 67 _t
(to)_S 67 _t
(people)_S 67 _t
(writing)_S 67 _t
(device)_S 67 _t
(drivers,)_S 67 _t
(but)_S 67 _t
(they)_S 67 _t
(might)_S 1200 5423 _m
(also)_S 67 _t
(be)_S 67 _t
(used)_S 67 _t
(for)_S 67 _t
(modem)_S 67 _t
(communications.)_S 1800 4957 _m
(To)_S 67 _t
(some)_S 67 _t
(extent,)_S 67 _t
(serial)_S 67 _t
(port)_S 67 _t
(support)_S 67 _t
(will)_S 67 _t
(be)_S 67 _t
(platform-dependent;)_S 67 _t
(the)_S 67 _t
(meaning)_S 67 _t
(of)_S 67 _t
(the)_S 1200 4724 _m
(various)_S 67 _t
(parameters)_S 67 _t
(in)_S 67 _t
(the)_S 67 _t
(vrl_SerialOpen\(\))_S 67 _t
(call)_S 67 _t
(will)_S 67 _t
(be)_S 67 _t
(different)_S 67 _t
(on)_S 67 _t
(different)_S 67 _t
(systems.)_S 67 _t
1200 4491 _m
(However,)_S 67 _t
(all)_S 67 _t
(the)_S 67 _t
(other)_S 67 _t
(routines)_S 67 _t
(should)_S 67 _t
(be)_S 67 _t
(the)_S 67 _t
(same)_S 67 _t
(regardless)_S 67 _t
(of)_S 67 _t
(platform.)_S 1800 4025 _m
(A)_S 67 _t
(serial)_S 67 _t
(port)_S 67 _t
(can)_S 67 _t
(be)_S 67 _t
(opened)_S 67 _t
(and)_S 67 _t
(closed)_S 67 _t
(using)_S 67 _t
(vrl_SerialOpen\(\))_S 67 _t
(and)_S 67 _t
(vrl_SerialClose\(\))_S 1200 3792 _m
(respectively;)_S 67 _t
(all)_S 67 _t
(the)_S 67 _t
(serial)_S 67 _t
(ports)_S 67 _t
(can)_S 67 _t
(be)_S 67 _t
(closed)_S 67 _t
(at)_S 67 _t
(once)_S 67 _t
(using)_S 67 _t
(vrl_SerialCloseAll\(\),)_S 67 _t
(which)_S 67 _t
(gets)_S 1200 3559 _m
(set)_S 67 _t
(as)_S 67 _t
(an)_S 67 _t
(atexit\(\))_S 67 _t
(function)_S 67 _t
(by)_S 67 _t
(vrl_SystemStartup\(\).)_S 134 _t
(The)_S 67 _t
(communications)_S 67 _t
(parameters)_S 67 _t
(can)_S 67 _t
(be)_S 67 _t
(set)_S 1200 3326 _m
(using)_S 67 _t
(vrl_SerialSetParameters\(\).)_S 1800 2914 _m
/CourierR 400 _ff
(vrl_SerialPort)_S 80 _t
(*vrl_SerialOpen\(unsigned)_S 80 _t
(int)_S 80 _t
(address,)_S 80 _t
(int)_S 80 _t
(irq,)_S 80 _t
(unsigned)_S 80 _t
(int)_S 80 _t
(buffsize\);)_S 1800 2781 _m
(void)_S 80 _t
(vrl_SerialClose\(vrl_SerialPort)_S 80 _t
(*port\);)_S 1800 2648 _m
(void)_S 80 _t
(vrl_SerialCloseAll\(void\);)_S 1800 2515 _m
(void)_S 80 _t
(vrl_SerialSetParameters\(vrl_SerialPort)_S 80 _t
(*port,)_S 80 _t
(unsigned)_S 80 _t
(int)_S 80 _t
(baud,)_S 2400 2382 _m
(vrl_ParityType)_S 80 _t
(parity,)_S 80 _t
(int)_S 80 _t
(databits,)_S 80 _t
(int)_S 80 _t
(stopbits\);)_S /Times-RomanR 600 _ff
1200 1960 _m
(The)_S 67 _t
1578 1960 _m
/Times-ItalicR 600 _ff
(address)_S 2200 1960 _m
/Times-RomanR 600 _ff
67 _t
(parameter)_S 67 _t
(to)_S 67 _t
(vrl_SerialOpen\(\))_S 67 _t
(is)_S 67 _t
(interpreted)_S 67 _t
(differently)_S 67 _t
(on)_S 67 _t
(different)_S 67 _t
(platforms;)_S 67 _t
(on)_S 1200 1727 _m
(PC-compatible)_S 67 _t
(machines,)_S 67 _t
(it's)_S 67 _t
(the)_S 67 _t
(base)_S 67 _t
(address)_S 67 _t
(of)_S 67 _t
(the)_S 67 _t
(UART)_S 67 _t
(chip)_S 67 _t
(\(usually)_S 67 _t
(0x3F8)_S 67 _t
(for)_S 67 _t
(COM1,)_S 8800 1255 _m
(48)_S _ep
_bp /Times-RomanR 600 _ff
0 13200 10200 _ornt
/_r { sflg {/_t {0 rmoveto}bdef /ron false def}
{ /_S /show load def /_t {0 rmoveto}bdef /ron false def}ifelse
}bdef
1200 11853 _m
(0x2F8)_S 67 _t
(for)_S 67 _t
(COM2\).)_S 134 _t
(The)_S 67 _t
3263 11853 _m
/Times-ItalicR 600 _ff
(irq)_S 3496 11853 _m
/Times-RomanR 600 _ff
67 _t
(parameter)_S 67 _t
(is)_S 67 _t
(also)_S 67 _t
(system-dependent;)_S 67 _t
(on)_S 67 _t
(PC-compatible)_S 67 _t
(machines,)_S 1200 11620 _m
(it's)_S 67 _t
(the)_S 67 _t
(hardware)_S 67 _t
(interrupt)_S 67 _t
(level)_S 67 _t
(the)_S 67 _t
(serial)_S 67 _t
(port)_S 67 _t
(uses)_S 67 _t
(\(usually)_S 67 _t
(4)_S 67 _t
(for)_S 67 _t
(COM1,)_S 67 _t
(3)_S 67 _t
(for)_S 67 _t
(COM2\).)_S 1800 11152 _m
(The)_S 67 _t
2178 11152 _m
/Times-ItalicR 600 _ff
(buffsize)_S 2789 11152 _m
/Times-RomanR 600 _ff
67 _t
(parameter)_S 67 _t
(is)_S 67 _t
(the)_S 67 _t
(size)_S 67 _t
(of)_S 67 _t
(buffer)_S 67 _t
(to)_S 67 _t
(use)_S 67 _t
(for)_S 67 _t
(incoming)_S 67 _t
(data.)_S 134 _t
(If)_S 67 _t
(it's)_S 67 _t
(set)_S 67 _t
(to)_S 1200 10919 _m
(zero,)_S 67 _t
(the)_S 67 _t
(port)_S 67 _t
(will)_S 67 _t
(be)_S 67 _t
(in)_S 67 _t
(a)_S 67 _t
(non-buffered)_S 67 _t
(mode;)_S 67 _t
(this)_S 67 _t
(may)_S 67 _t
(mean)_S 67 _t
(that)_S 67 _t
(characters)_S 67 _t
(get)_S 67 _t
(lost.)_S 134 _t
(Such)_S 67 _t
(a)_S 1200 10686 _m
(mode)_S 67 _t
(would)_S 67 _t
(only)_S 67 _t
(be)_S 67 _t
(used)_S 67 _t
(if)_S 67 _t
(you're)_S 67 _t
(doing)_S 67 _t
(your)_S 67 _t
(own)_S 67 _t
(handshake)_S 67 _t
(with)_S 67 _t
(the)_S 67 _t
(device;)_S 67 _t
(in)_S 67 _t
(other)_S 1200 10453 _m
(words,)_S 67 _t
(you)_S 67 _t
(send)_S 67 _t
(it)_S 67 _t
(a)_S 67 _t
(byte)_S 67 _t
(to)_S 67 _t
(poll)_S 67 _t
(it,)_S 67 _t
(and)_S 67 _t
(then)_S 67 _t
(sit)_S 67 _t
(in)_S 67 _t
(a)_S 67 _t
(tight)_S 67 _t
(loop)_S 67 _t
(receiving)_S 67 _t
(the)_S 67 _t
(resulting)_S 67 _t
(data.)_S 67 _t
1200 10218 _m
(In)_S 67 _t
(this)_S 67 _t
(case,)_S 67 _t
(the)_S 67 _t
2562 10218 _m
/Times-ItalicR 600 _ff
(irq)_S 2796 10218 _m
/Times-RomanR 600 _ff
67 _t
(value)_S 67 _t
(is)_S 67 _t
(ignored.)_S 1800 9750 _m
(The)_S 67 _t
2178 9750 _m
/Times-ItalicR 600 _ff
(baud)_S 2578 9750 _m
/Times-RomanR 600 _ff
67 _t
(parameter)_S 67 _t
(to)_S 67 _t
(the)_S 67 _t
(vrl_SerialSetParameters\(\))_S 67 _t
(function)_S 67 _t
(is)_S 67 _t
(the)_S 67 _t
(baud)_S 67 _t
(rate;)_S 67 _t
(this)_S 67 _t
(is)_S 1200 9515 _m
(usually)_S 67 _t
(9600)_S 67 _t
(for)_S 67 _t
(most)_S 67 _t
(input)_S 67 _t
(devices.)_S 134 _t
(The)_S 67 _t
4708 9515 _m
/Times-ItalicR 600 _ff
(parity)_S 5186 9515 _m
/Times-RomanR 600 _ff
67 _t
(parameter)_S 67 _t
(is)_S 67 _t
(one)_S 67 _t
(of)_S 67 _t
(VRL_PARITY_NONE,)_S 1200 9282 _m
(VRL_PARITY_EVEN)_S 67 _t
(or)_S 67 _t
(VRL_PARITY_ODD;)_S 67 _t
(most)_S 67 _t
(devices)_S 67 _t
(use)_S 67 _t
(VRL_PARITY_NONE.)_S 67 _t
1200 9047 _m
(The)_S 67 _t
1578 9047 _m
/Times-ItalicR 600 _ff
(databits)_S 2223 9047 _m
/Times-RomanR 600 _ff
67 _t
(field)_S 67 _t
(is)_S 67 _t
(the)_S 67 _t
(number)_S 67 _t
(of)_S 67 _t
(data)_S 67 _t
(bits)_S 67 _t
(per)_S 67 _t
(transmitted)_S 67 _t
(byte;)_S 67 _t
(this)_S 67 _t
(is)_S 67 _t
(either)_S 67 _t
(7)_S 67 _t
(or)_S 67 _t
(8,)_S 67 _t
(and)_S 1200 8814 _m
(most)_S 67 _t
(devices)_S 67 _t
(use)_S 67 _t
(8.)_S 134 _t
(The)_S 67 _t
(number)_S 67 _t
(of)_S 67 _t
(stop)_S 67 _t
(bits)_S 67 _t
(can)_S 67 _t
(be)_S 67 _t
(1)_S 67 _t
(or)_S 67 _t
(2,)_S 67 _t
(and)_S 67 _t
(is)_S 67 _t
(usually)_S 67 _t
(1.)_S 134 _t
(Newly-opened)_S 1200 8581 _m
(serial)_S 67 _t
(ports)_S 67 _t
(are)_S 67 _t
(set)_S 67 _t
(up)_S 67 _t
(to)_S 67 _t
(be)_S 67 _t
(9600)_S 67 _t
(baud,)_S 67 _t
(VRL_PARITY_NONE,)_S 67 _t
(8)_S 67 _t
(data)_S 67 _t
(bits)_S 67 _t
(and)_S 67 _t
(1)_S 67 _t
(stop)_S 67 _t
(bit.)_S 1800 8115 _m
(The)_S 67 _t
(vrl_SerialCheck\(\))_S 67 _t
(routine)_S 67 _t
(will)_S 67 _t
(return)_S 67 _t
(a)_S 67 _t
(non-zero)_S 67 _t
(value)_S 67 _t
(if)_S 67 _t
(there)_S 67 _t
(are)_S 67 _t
(unread)_S 1200 7882 _m
(characters)_S 67 _t
(in)_S 67 _t
(the)_S 67 _t
(input)_S 67 _t
(buffer)_S 67 _t
(\(or)_S 67 _t
(if)_S 67 _t
(there's)_S 67 _t
(a)_S 67 _t
(character)_S 67 _t
(waiting)_S 67 _t
(at)_S 67 _t
(the)_S 67 _t
(UART)_S 67 _t
(if)_S 67 _t
(the)_S 67 _t
(port)_S 67 _t
(is)_S 67 _t
(in)_S 1200 7649 _m
(unbuffered)_S 67 _t
(mode\).)_S 134 _t
(The)_S 67 _t
(vrl_SerialGetc\(\))_S 67 _t
(routine)_S 67 _t
(reads)_S 67 _t
(and)_S 67 _t
(returns)_S 67 _t
(a)_S 67 _t
(byte.)_S 134 _t
(It)_S 67 _t
(should)_S 67 _t
(not)_S 67 _t
(be)_S 1200 7416 _m
(called)_S 67 _t
(unless)_S 67 _t
(you)_S 67 _t
(know)_S 67 _t
(there's)_S 67 _t
(a)_S 67 _t
(character)_S 67 _t
(waiting;)_S 67 _t
(in)_S 67 _t
(buffered)_S 67 _t
(mode,)_S 67 _t
(such)_S 67 _t
(a)_S 67 _t
(call)_S 67 _t
(will)_S 67 _t
(return)_S 1200 7183 _m
(zero,)_S 67 _t
(while)_S 67 _t
(in)_S 67 _t
(unbuffered)_S 67 _t
(mode)_S 67 _t
(the)_S 67 _t
(call)_S 67 _t
(will)_S 67 _t
(block)_S 67 _t
(until)_S 67 _t
(a)_S 67 _t
(character)_S 67 _t
(arrives!)_S 134 _t
(The)_S 1200 6950 _m
(vrl_SerialFlush\(\))_S 67 _t
(routine)_S 67 _t
(will)_S 67 _t
(get)_S 67 _t
(rid)_S 67 _t
(of)_S 67 _t
(any)_S 67 _t
(characters)_S 67 _t
(waiting)_S 67 _t
(in)_S 67 _t
(the)_S 67 _t
(input)_S 67 _t
(buffer.)_S 1800 6538 _m
/CourierR 400 _ff
(vrl_Boolean)_S 80 _t
(vrl_SerialCheck\(vrl_SerialPort)_S 80 _t
(*port\);)_S 1800 6405 _m
(unsigned)_S 80 _t
(int)_S 80 _t
(vrl_SerialGetc\(vrl_SerialPort)_S 80 _t
(*port\);)_S 1800 6272 _m
(void)_S 80 _t
(vrl_SerialFlush\(vrl_SerialPort)_S 80 _t
(*p\);)_S /Times-RomanR 600 _ff
1200 5852 _m
(The)_S 67 _t
(vrl_SerialPutc\(\))_S 67 _t
(and)_S 67 _t
(vrl_SerialPutString\(\))_S 67 _t
(routines)_S 67 _t
(put)_S 67 _t
(out)_S 67 _t
(single)_S 67 _t
(characters)_S 67 _t
(and)_S 67 _t
(null-)_S 1200 5619 _m
(terminated)_S 67 _t
(strings)_S 67 _t
(of)_S 67 _t
(characters)_S 67 _t
(respectively.)_S 134 _t
(The)_S 67 _t
(terminating)_S 67 _t
(null)_S 67 _t
(byte)_S 67 _t
(is)_S 67 _t
(not)_S 67 _t
(send)_S 67 _t
(by)_S 1200 5386 _m
(vrl_SerialPutString\(\).)_S 1800 4974 _m
/CourierR 400 _ff
(void)_S 80 _t
(vrl_SerialPutc\(unsigned)_S 80 _t
(int)_S 80 _t
(c,)_S 80 _t
(vrl_SerialPort)_S 80 _t
(*port\);)_S 1800 4841 _m
(void)_S 80 _t
(vrl_SerialPutString\(unsigned)_S 80 _t
(char)_S 80 _t
(*s,)_S 80 _t
(vrl_SerialPort)_S 80 _t
(*p\);)_S /Times-RomanR 600 _ff
1200 4421 _m
(There)_S 67 _t
(are)_S 67 _t
(also)_S 67 _t
(two)_S 67 _t
(routines)_S 67 _t
(for)_S 67 _t
(controlling)_S 67 _t
(the)_S 67 _t
(state)_S 67 _t
(of)_S 67 _t
(the)_S 67 _t
(DTR)_S 67 _t
(and)_S 67 _t
(RTS)_S 67 _t
(lines:)_S 1800 4009 _m
/CourierR 400 _ff
(void)_S 80 _t
(vrl_SerialSetDTR\(vrl_SerialPort)_S 80 _t
(*port,)_S 80 _t
(vrl_Boolean)_S 80 _t
(value\);)_S 1800 3876 _m
(void)_S 80 _t
(vrl_SerialSetRTS\(vrl_SerialPort)_S 80 _t
(*port,)_S 80 _t
(vrl_Boolean)_S 80 _t
(value\);)_S /Times-RomanR 600 _ff
1200 3193 _m
/Times-BoldR 720 _ff
(Packet)_S 80 _t
(Routines)_S 2880 3193 _m
/Times-RomanR 600 _ff
1200 2717 _m
(Many)_S 67 _t
(serial)_S 67 _t
(devices)_S 67 _t
(communicate)_S 67 _t
(by)_S 67 _t
(sending)_S 67 _t
("packets")_S 67 _t
(of)_S 67 _t
(data.)_S 134 _t
(There)_S 67 _t
(are)_S 67 _t
(four)_S 67 _t
(routines)_S 67 _t
(in)_S 1200 2484 _m
(AVRIL)_S 67 _t
(to)_S 67 _t
(support)_S 67 _t
(the)_S 67 _t
(reception)_S 67 _t
(of)_S 67 _t
(packets:)_S 1800 2072 _m
/CourierR 400 _ff
(vrl_DevicePacketBuffer)_S 80 _t
(*vrl_DeviceCreatePacketBuffer\(int)_S 80 _t
(buffsize\);)_S 1800 1939 _m
(void)_S 80 _t
(vrl_DeviceDestroyPacketBuffer\(vrl_DevicePacketBuffer)_S 80 _t
(*buff\);)_S 1800 1806 _m
(vrl_Boolean)_S 80 _t
(vrl_DeviceGetPacket\(vrl_SerialPort)_S 80 _t
(*port,)_S 80 _t
(vrl_DevicePacketBuffer)_S 80 _t
(*buff\);)_S 8800 1255 _m
/Times-RomanR 600 _ff
(49)_S /CourierR 400 _ff
_ep
_bp /CourierR 400 _ff
0 13200 10200 _ornt
/_r { sflg {/_t {0 rmoveto}bdef /ron false def}
{ /_S /show load def /_t {0 rmoveto}bdef /ron false def}ifelse
}bdef
1800 11909 _m
(unsigned)_S 80 _t
(char)_S 80 _t
(*vrl_DevicePacketGetBuffer\(vrl_DevicePacketBuffer)_S 80 _t
(*buff\);)_S /Times-RomanR 600 _ff
1200 11489 _m
(The)_S 67 _t
(vrl_DeviceCreatePacketBuffer\(\))_S 67 _t
(function)_S 67 _t
(creates)_S 67 _t
(a)_S 67 _t
(packet)_S 67 _t
(buffer)_S 67 _t
(with)_S 67 _t
(room)_S 67 _t
(for)_S 67 _t
(the)_S 1200 11256 _m
(specified)_S 67 _t
(number)_S 67 _t
(of)_S 67 _t
(bytes;)_S 67 _t
(vrl_DeviceDestroyPacketBuffer\(\))_S 67 _t
(destroys)_S 67 _t
(such)_S 67 _t
(a)_S 67 _t
(buffer.)_S 134 _t
(The)_S 1200 11023 _m
(vrl_DevicePacketGetBuffer\(\))_S 67 _t
(routine)_S 67 _t
(returns)_S 67 _t
(a)_S 67 _t
(pointer)_S 67 _t
(to)_S 67 _t
(the)_S 67 _t
(actual)_S 67 _t
(data)_S 67 _t
(packet.)_S 1800 10557 _m
(The)_S 67 _t
(vrl_DeviceGetPacket\(\))_S 67 _t
(routine)_S 67 _t
(is)_S 67 _t
(designed)_S 67 _t
(to)_S 67 _t
(handle)_S 67 _t
(a)_S 67 _t
(particular)_S 67 _t
(type)_S 67 _t
(of)_S 67 _t
(packet,)_S 67 _t
(a)_S 1200 10324 _m
(fixed-size)_S 67 _t
(one)_S 67 _t
(in)_S 67 _t
(which)_S 67 _t
(the)_S 67 _t
(leading)_S 67 _t
(byte)_S 67 _t
(has)_S 67 _t
(the)_S 67 _t
(top)_S 67 _t
(bit)_S 67 _t
(set)_S 67 _t
(and)_S 67 _t
(none)_S 67 _t
(of)_S 67 _t
(the)_S 67 _t
(other)_S 67 _t
(bytes)_S 67 _t
(do.)_S 67 _t
1200 10091 _m
(This)_S 67 _t
(format)_S 67 _t
(is)_S 67 _t
(used)_S 67 _t
(by)_S 67 _t
(the)_S 67 _t
(Logitech)_S 67 _t
(Cyberman,)_S 67 _t
(among)_S 67 _t
(other)_S 67 _t
(devices.)_S 134 _t
(You)_S 67 _t
(can)_S 67 _t
(use)_S 67 _t
(this)_S 1200 9858 _m
(routine)_S 67 _t
(directly,)_S 67 _t
(or)_S 67 _t
(you)_S 67 _t
(can)_S 67 _t
(write)_S 67 _t
(your)_S 67 _t
(own)_S 67 _t
(\(with)_S 67 _t
(a)_S 67 _t
(different)_S 67 _t
(name,)_S 67 _t
(of)_S 67 _t
(course\);)_S 67 _t
(the)_S 67 _t
(source)_S 1200 9625 _m
(code)_S 67 _t
(is)_S 67 _t
(found)_S 67 _t
(in)_S 67 _t
(packet.c,)_S 67 _t
(and)_S 67 _t
(the)_S 67 _t
(vrl_DevicePacketBuffer)_S 67 _t
(data)_S 67 _t
(structure)_S 67 _t
(is)_S 67 _t
(in)_S 67 _t
(avril.h)_S 67 _t
(\(and)_S 67 _t
(it's)_S 1200 9392 _m
(not)_S 67 _t
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(a)_S 67 _t
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1200 11549 _m
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1200 7018 _m
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1800 5813 _m
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(wuarchive.wustl.edu,)_S 67 _t
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1200 11592 _m
/Times-BoldR 720 _ff
(Appendix)_S 80 _t
(A)_S 80 _t
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/Times-RomanR 600 _ff
1200 11116 _m
(This)_S 67 _t
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(sweeping)_S 1200 10650 _m
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/Times-BoldR 600 _ff
(Changes)_S 67 _t
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1200 9718 _m
(Added)_S 67 _t
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(the)_S 67 _t
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(Added)_S 67 _t
(the)_S 67 _t
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(Simplified)_S 67 _t
(the)_S 67 _t
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(out,)_S 67 _t
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(a)_S 67 _t
(complicated)_S 67 _t
(solution)_S 67 _t
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(a)_S 1200 8553 _m
(simple)_S 67 _t
(problem.)_S 134 _t
(Devices)_S 67 _t
(now)_S 67 _t
(have)_S 67 _t
("nicknames")_S 67 _t
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(which)_S 67 _t
(they)_S 67 _t
(can)_S 67 _t
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(referenced)_S 67 _t
(by)_S 67 _t
(the)_S 1200 8320 _m
(application,)_S 67 _t
(eliminating)_S 67 _t
(the)_S 67 _t
(need)_S 67 _t
(for)_S 67 _t
(the)_S 67 _t
(cfg.c)_S 67 _t
(code)_S 67 _t
(to)_S 67 _t
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3290 8085 _m
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67 _t
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(a)_S 67 _t
("display")_S 1200 7852 _m
(statement)_S 67 _t
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(display)_S 67 _t
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(new)_S 67 _t
(driver)_S 67 _t
(and/or)_S 67 _t
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(a)_S 67 _t
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(horizon)_S 67 _t
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(had)_S 67 _t
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(sky)_S 67 _t
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(straight)_S 1200 7153 _m
(down,)_S 67 _t
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(ground)_S 67 _t
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1200 6221 _m
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(support)_S 67 _t
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(input)_S 67 _t
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(Added)_S 67 _t
(support)_S 67 _t
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(serial)_S 67 _t
(communications.)_S 1200 5289 _m
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(all)_S 67 _t
(the)_S 67 _t
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(Scalar,)_S 67 _t
(Factor,)_S 1200 5056 _m
(Angle,)_S 67 _t
(Vector)_S 67 _t
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(Matrix.)_S 134 _t
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(UNITY)_S 67 _t
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(VRL_UNITY.)_S 134 _t
(There)_S 67 _t
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(the)_S 1200 4823 _m
(end)_S 67 _t
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(the)_S 67 _t
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(version)_S 67 _t
(2.00.)_S 1200 4357 _m
(Added)_S 67 _t
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(vrl_Time)_S 67 _t
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()_S 67 _t
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(#include)_S 67 _t
()_S 67 _t
(\(for)_S 67 _t
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(XROT,)_S 67 _t
(YROT)_S 67 _t
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(ZROT)_S 67 _t
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(indexing)_S 67 _t
(device)_S 67 _t
(channels.)_S 1200 2959 _m
(Added)_S 67 _t
(various)_S 67 _t
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(vector)_S 67 _t
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(matrix)_S 67 _t
(functions)_S 67 _t
(such)_S 67 _t
(as)_S 67 _t
(vrl_VectorNegate\(\))_S 67 _t
(and)_S 1200 2726 _m
(vrl_VectorEqual\(\).)_S 134 _t
(Also)_S 67 _t
(added)_S 67 _t
(a)_S 67 _t
(new)_S 67 _t
(global)_S 67 _t
(variable,)_S 67 _t
(the)_S 67 _t
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(vrl_VectorNULL.)_S 1200 2260 _m
(Added)_S 67 _t
(a)_S 67 _t
("leftside")_S 67 _t
(parameter)_S 67 _t
(to)_S 67 _t
(the)_S 67 _t
(vrl_MatrixRotX\(\),)_S 67 _t
(vrl_MatrixRotY\(\),)_S 67 _t
(vrl_MatrixRotZ\(\),)_S 1200 2027 _m
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(vrl_MatrixRotVector\(\))_S 67 _t
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1200 11855 _m
(Removed)_S 67 _t
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(vrl_Lights,)_S 67 _t
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(Added)_S 67 _t
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(names,)_S 67 _t
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(finding)_S 67 _t
(entities)_S 67 _t
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(name.)_S 134 _t
(Also)_S 67 _t
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(for)_S 67 _t
(traversing)_S 67 _t
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(iterating)_S 67 _t
(over)_S 67 _t
(the)_S 67 _t
(linked)_S 67 _t
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(of)_S 1200 11156 _m
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(vrl_Cameras.)_S 1200 10690 _m
(Added)_S 67 _t
(vrl_ObjectRotate\(\))_S 67 _t
(and)_S 67 _t
(vrl_ObjectTranslate\(\))_S 67 _t
(routines,)_S 67 _t
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(modified)_S 67 _t
(several)_S 67 _t
(older)_S 1200 10457 _m
(movement)_S 67 _t
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(rotation)_S 67 _t
(functions)_S 67 _t
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(make)_S 67 _t
(calls)_S 67 _t
(to)_S 67 _t
(those)_S 67 _t
(two.)_S 1200 9991 _m
(Made)_S 67 _t
(surface)_S 67 _t
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(into)_S 67 _t
(a)_S 67 _t
(struct,)_S 67 _t
(rather)_S 67 _t
(than)_S 67 _t
(just)_S 67 _t
(an)_S 67 _t
(array)_S 67 _t
(of)_S 67 _t
(vrl_Surface)_S 67 _t
(pointers.)_S 134 _t
(This)_S 1200 9758 _m
(allows)_S 67 _t
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(additional)_S 67 _t
(information)_S 67 _t
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(a)_S 67 _t
(surface)_S 67 _t
(map)_S 67 _t
(to)_S 67 _t
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(Added)_S 67 _t
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(world)_S 67 _t
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(a)_S 67 _t
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(supporting)_S 1200 8826 _m
(those)_S 67 _t
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(The)_S 67 _t
(RVD)_S 67 _t
(drivers)_S 67 _t
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(now)_S 67 _t
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(the)_S 67 _t
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(to)_S 67 _t
(make)_S 67 _t
(their)_S 67 _t
(naming)_S 67 _t
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(with)_S 67 _t
(everything)_S 67 _t
(else.)_S 67 _t
1200 7661 _m
(For)_S 67 _t
(example,)_S 67 _t
(vrl_NewObject\(\))_S 67 _t
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(now)_S 67 _t
(vrl_ObjectCreate\(\).)_S 134 _t
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(#defines)_S 67 _t
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(the)_S 1200 7428 _m
(end)_S 67 _t
(of)_S 67 _t
(avril.h)_S 67 _t
(to)_S 67 _t
(ease)_S 67 _t
(the)_S 67 _t
(transition;)_S 67 _t
(these)_S 67 _t
(will)_S 67 _t
(be)_S 67 _t
(removed)_S 67 _t
(as)_S 67 _t
(of)_S 67 _t
(the)_S 67 _t
(2.00)_S 67 _t
(release.)_S 1200 6962 _m
(Added)_S 67 _t
(a)_S 67 _t
(vrl_WorldUpdate\(\))_S 67 _t
(macro.)_S 1200 6496 _m
(Added)_S 67 _t
(application-specific)_S 67 _t
(data)_S 67 _t
(to)_S 67 _t
(vrl_Objects,)_S 67 _t
(vrl_Lights)_S 67 _t
(and)_S 67 _t
(vrl_Cameras.)_S 1200 6030 _m
(Added)_S 67 _t
(functions)_S 67 _t
(to)_S 67 _t
(vrl_Objects,)_S 67 _t
(which)_S 67 _t
(get)_S 67 _t
(called)_S 67 _t
(during)_S 67 _t
(world)_S 67 _t
(updating.)_S 1200 5564 _m
(Added)_S 67 _t
(ID)_S 67 _t
(numbers)_S 67 _t
(to)_S 67 _t
(facets.)_S 1200 5098 _m
(Renamed)_S 67 _t
(vrl_SetFigurePartArray\(\))_S 67 _t
(to)_S 67 _t
(vrl_SetReadFIGpartArray\(\))_S 67 _t
(to)_S 67 _t
(be)_S 67 _t
(more)_S 67 _t
(consistent.)_S 1200 4632 _m
(Switched)_S 67 _t
(to)_S 67 _t
(using)_S 67 _t
(standard)_S 67 _t
(the)_S 67 _t
(DOS)_S 67 _t
(timer)_S 67 _t
(\(at)_S 67 _t
(an)_S 67 _t
(accelerated)_S 67 _t
(rate,)_S 67 _t
(and)_S 67 _t
(chaining)_S 67 _t
(to)_S 67 _t
(the)_S 67 _t
(old)_S 67 _t
(one)_S 1200 4399 _m
(periodically\))_S 67 _t
(because)_S 67 _t
(the)_S 67 _t
(RTC)_S 67 _t
(timer)_S 67 _t
(interfered)_S 67 _t
(with)_S 67 _t
(Turbo)_S 67 _t
(Debugger.)_S 1200 3933 _m
(Standardized)_S 67 _t
(on)_S 67 _t
(a)_S 67 _t
(tick)_S 67 _t
(rate)_S 67 _t
(of)_S 67 _t
(1000)_S 67 _t
(per)_S 67 _t
(second.)_S 1200 3467 _m
(Eliminated)_S 67 _t
(the)_S 67 _t
(vrl_TimerAddHandler\(\))_S 67 _t
(routine,)_S 67 _t
(since)_S 67 _t
(there)_S 67 _t
(was)_S 67 _t
(too)_S 67 _t
(much)_S 67 _t
(risk)_S 67 _t
(that)_S 67 _t
(handler)_S 1200 3234 _m
(routines)_S 67 _t
(would)_S 67 _t
(do)_S 67 _t
(things)_S 67 _t
(that)_S 67 _t
(ought)_S 67 _t
(not)_S 67 _t
(be)_S 67 _t
(done)_S 67 _t
(inside)_S 67 _t
(an)_S 67 _t
(interrupt)_S 67 _t
(handler;)_S 67 _t
(a)_S 67 _t
(bug)_S 67 _t
(in)_S 67 _t
(Borland)_S 1200 3001 _m
(C)_S 67 _t
(3.1)_S 67 _t
(bug)_S 67 _t
(also)_S 67 _t
(forced)_S 67 _t
(all)_S 67 _t
(routines)_S 67 _t
(called)_S 67 _t
(from)_S 67 _t
(within)_S 67 _t
(an)_S 67 _t
(interrupt)_S 67 _t
(to)_S 67 _t
(be)_S 67 _t
(assembled)_S 67 _t
(without)_S 67 _t
(386)_S 1200 2768 _m
(instructions.)_S 1200 2302 _m
(Added)_S 67 _t
(a)_S 67 _t
(call)_S 67 _t
(to)_S 67 _t
(directly)_S 67 _t
(query)_S 67 _t
(the)_S 67 _t
(frames)_S 67 _t
(per)_S 67 _t
(second)_S 67 _t
(rate.)_S 8800 1255 _m
(53)_S _ep
_bp /Times-RomanR 600 _ff
0 13200 10200 _ornt
/_r { sflg {/_t {0 rmoveto}bdef /ron false def}
{ /_S /show load def /_t {0 rmoveto}bdef /ron false def}ifelse
}bdef
1200 11855 _m
(Renamed)_S 67 _t
(the)_S 67 _t
(vrl_DrawCompass\(\))_S 67 _t
(and)_S 67 _t
(vrl_DropText\(\))_S 67 _t
(routines)_S 67 _t
(to)_S 1200 11622 _m
(vrl_UserInterfaceDrawCompass\(\))_S 67 _t
(and)_S 67 _t
(vrl_UserInterfaceDropText\(\))_S 67 _t
(to)_S 67 _t
(make)_S 67 _t
(it)_S 67 _t
(clear)_S 67 _t
(that)_S 1200 11389 _m
(they're)_S 67 _t
(a)_S 67 _t
(part)_S 67 _t
(of)_S 67 _t
(the)_S 67 _t
(user)_S 67 _t
(interface)_S 67 _t
(family)_S 67 _t
(of)_S 67 _t
(functions.)_S 1200 10923 _m
(Modified)_S 67 _t
(the)_S 67 _t
(vrl_PrimitiveSphere\(\))_S 67 _t
(routine)_S 67 _t
(to)_S 67 _t
(accept)_S 67 _t
(separate)_S 67 _t
(counts)_S 67 _t
(of)_S 67 _t
(the)_S 67 _t
(number)_S 67 _t
(of)_S 1200 10690 _m
(longitudinal)_S 67 _t
(and)_S 67 _t
(latitiudinal)_S 67 _t
(sides.)_S 1200 10224 _m
(Add)_S 67 _t
(support)_S 67 _t
(for)_S 67 _t
(configuration)_S 67 _t
(files.)_S 1200 9758 _m

(Added)_S 67 _t
(the)_S 67 _t
(additional)_S 67 _t
(mouse)_S 67 _t
(routines)_S 67 _t
(vrl_MouseGetUsage\(\),)_S 67 _t
(vrl_MouseSetUsage\(\),)_S 1200 9525 _m
(vrl_MouseSetPointer\(\),)_S 67 _t
(vrl_MouseGetPointer\(\))_S 67 _t
(and)_S 67 _t
(vrl_MouseGetLimits\(\).)_S 8800 1255 _m
(54)_S _ep
_bp /Times-RomanR 600 _ff
0 13200 10200 _ornt
/_r { sflg {/_t {0 rmoveto}bdef /ron false def}
{ /_S /show load def /_t {0 rmoveto}bdef /ron false def}ifelse
}bdef
1200 11592 _m
/Times-BoldR 720 _ff
(Appendix)_S 80 _t
(B)_S 80 _t
(-)_S 80 _t
(CFG)_S 80 _t
(FILE)_S 80 _t
(FORMAT)_S 4974 11592 _m
/Times-RomanR 600 _ff
1200 11116 _m
(A)_S 67 _t
(CFG)_S 67 _t
(file)_S 67 _t
(is)_S 67 _t
(a)_S 67 _t
(platform-specific)_S 67 _t
(ascii)_S 67 _t
(file)_S 67 _t
(used)_S 67 _t
(to)_S 67 _t
(describe)_S 67 _t
(the)_S 67 _t
(user's)_S 67 _t
(preferred)_S 67 _t
(configuration.)_S 67 _t
1200 10883 _m
(It)_S 67 _t
(contains)_S 67 _t
(a)_S 67 _t
(series)_S 67 _t
(of)_S 67 _t
(statements,)_S 67 _t
(one)_S 67 _t
(per)_S 67 _t
(line;)_S 67 _t
(anything)_S 67 _t
(after)_S 67 _t
(a)_S 67 _t
('#')_S 67 _t
(character)_S 67 _t
(on)_S 67 _t
(any)_S 67 _t
(given)_S 1200 10650 _m
(line)_S 67 _t
(is)_S 67 _t
(taken)_S 67 _t
(as)_S 67 _t
(a)_S 67 _t
(comment,)_S 67 _t
(and)_S 67 _t
(blank)_S 67 _t
(lines)_S 67 _t
(are)_S 67 _t
(ignored.)_S 134 _t
(At)_S 67 _t
(the)_S 67 _t
(moment,)_S 67 _t
(there)_S 67 _t
(are)_S 67 _t
(only)_S 67 _t
(a)_S 67 _t
(few)_S 1200 10417 _m
(statement)_S 67 _t
(types)_S 67 _t
(defined;)_S 67 _t
(this)_S 67 _t
(is)_S 67 _t
(expected)_S 67 _t
(to)_S 67 _t
(change.)_S 1200 9949 _m
(COMPASS)_S 67 _t
2201 9949 _m
/Times-ItalicR 600 _ff
(state)_S /Times-RomanR 600 _ff
1800 9714 _m
(If)_S 67 _t
2000 9714 _m
/Times-ItalicR 600 _ff
(state)_S 2378 9714 _m
/Times-RomanR 600 _ff
67 _t
(is)_S 67 _t
("on",)_S 67 _t
(then)_S 67 _t
(the)_S 67 _t
(user)_S 67 _t
(wants)_S 67 _t
(the)_S 67 _t
(compass)_S 67 _t
(displayed)_S 67 _t
(on)_S 67 _t
(the)_S 67 _t
(screen.)_S 1200 9246 _m
(FRAMERATE)_S 67 _t
2478 9246 _m
/Times-ItalicR 600 _ff
(state)_S /Times-RomanR 600 _ff
1800 9011 _m
(If)_S 67 _t
2000 9011 _m
/Times-ItalicR 600 _ff
(state)_S 2378 9011 _m
/Times-RomanR 600 _ff
67 _t
(is)_S 67 _t
("on",)_S 67 _t
(then)_S 67 _t
(the)_S 67 _t
(user)_S 67 _t
(wants)_S 67 _t
(the)_S 67 _t
(frame)_S 67 _t
(rate)_S 67 _t
(displayed)_S 67 _t
(on)_S 67 _t
(the)_S 67 _t
(screen.)_S 1200 8543 _m
(POSITION)_S 67 _t
2178 8543 _m
/Times-ItalicR 600 _ff
(state)_S /Times-RomanR 600 _ff
1800 8308 _m
(If)_S 67 _t
2000 8308 _m
/Times-ItalicR 600 _ff
(state)_S 2378 8308 _m
/Times-RomanR 600 _ff
67 _t
(is)_S 67 _t
("on",)_S 67 _t
(then)_S 67 _t
(the)_S 67 _t
(user)_S 67 _t
(wants)_S 67 _t
(their)_S 67 _t
(current)_S 67 _t
(X,Z)_S 67 _t
(position)_S 67 _t
(displayed)_S 67 _t
(on)_S 67 _t
(the)_S 67 _t
(screen.)_S 1200 7840 _m
(DISPLAYDRIVER)_S 67 _t
2856 7840 _m
/Times-ItalicR 600 _ff
(name)_S 3289 7840 _m
/Times-RomanR 600 _ff
67 _t
([)_S 3423 7840 _m
/Times-ItalicR 600 _ff
(mode)_S 3856 7840 _m
/Times-RomanR 600 _ff
(])_S 1800 7605 _m
(Specifies)_S 67 _t
(a)_S 67 _t
(display)_S 67 _t
(driver)_S 67 _t
(and)_S 67 _t
(mode)_S 67 _t
(to)_S 67 _t
(use;)_S 67 _t
(the)_S 67 _t
5736 7605 _m
/Times-ItalicR 600 _ff
(mode)_S 6169 7605 _m
/Times-RomanR 600 _ff
67 _t
(is)_S 67 _t
(optional,)_S 67 _t
(and)_S 67 _t
(both)_S 67 _t
(are)_S 67 _t
8299 7605 _m
/Times-ItalicR 600 _ff
(name)_S /Times-RomanR 600 _ff
1800 7370 _m
(and)_S 67 _t
2156 7370 _m
/Times-ItalicR 600 _ff
(mode)_S 2589 7370 _m
/Times-RomanR 600 _ff
67 _t
(are)_S 67 _t
(platform-specific.)_S 1200 6902 _m
(DEVICE)_S 67 _t
2000 6902 _m
/Times-ItalicR 600 _ff
(name)_S 67 _t
(type)_S 67 _t
(mode)_S 67 _t
(address)_S 67 _t
(irq)_S 67 _t
(buffsize)_S /Times-RomanR 600 _ff
1800 6669 _m
(Sets)_S 67 _t
(up)_S 67 _t
(a)_S 67 _t
(device)_S 67 _t
(driver,)_S 67 _t
(and)_S 67 _t
(assigns)_S 67 _t
(it)_S 67 _t
(a)_S 67 _t
(symbolic)_S 67 _t
(name)_S 67 _t
(that)_S 67 _t
(can)_S 67 _t
(be)_S 67 _t
(referenced)_S 67 _t
(by)_S 67 _t
(the)_S 1800 6434 _m
(application.)_S 134 _t
(The)_S 67 _t
3251 6434 _m
/Times-ItalicR 600 _ff
(type)_S 3584 6434 _m
/Times-RomanR 600 _ff
67 _t
(field)_S 67 _t
(is)_S 67 _t
(the)_S 67 _t
(name)_S 67 _t
(of)_S 67 _t
(a)_S 67 _t
(device)_S 67 _t
(type,)_S 67 _t
(like)_S 67 _t
("Cyberman")_S 67 _t
(or)_S 1800 6199 _m
("Spaceball".)_S 134 _t
(The)_S 67 _t
3303 6199 _m
/Times-ItalicR 600 _ff
(mode)_S 3736 6199 _m
/Times-RomanR 600 _ff
67 _t
(is)_S 67 _t
(passed)_S 67 _t
(to)_S 67 _t
(the)_S 67 _t
(device)_S 67 _t
(using)_S 67 _t
(vrl_DeviceSetMode\(\),)_S 67 _t
(and)_S 67 _t
(the)_S 1800 5964 _m
/Times-ItalicR 600 _ff
(address)_S 2422 5964 _m
/Times-RomanR 600 _ff
(,)_S 67 _t
2539 5964 _m
/Times-ItalicR 600 _ff
(irq)_S 2773 5964 _m
/Times-RomanR 600 _ff
67 _t
(and)_S 67 _t
3195 5964 _m
/Times-ItalicR 600 _ff
(buffsize)_S 3807 5964 _m

/Times-RomanR 600 _ff
67 _t
(fields)_S 67 _t
(are)_S 67 _t
(just)_S 67 _t
(passed)_S 67 _t
(to)_S 67 _t
(the)_S 67 _t
(call)_S 67 _t
(to)_S 67 _t
(vrl_SerialOpen\(\);)_S 67 _t
(see)_S 67 _t
(the)_S 1800 5729 _m
(section)_S 67 _t
(on)_S 67 _t
(Serial)_S 67 _t
(Ports)_S 67 _t
(for)_S 67 _t
(details.)_S 134 _t
(All)_S 67 _t
(parameters)_S 67 _t
(except)_S 67 _t
(the)_S 67 _t
6886 5729 _m
/Times-ItalicR 600 _ff
(name)_S 7319 5729 _m
/Times-RomanR 600 _ff
67 _t
(and)_S 67 _t
7742 5729 _m
/Times-ItalicR 600 _ff
(type)_S 8075 5729 _m
/Times-RomanR 600 _ff
67 _t
(are)_S 1800 5494 _m
(optional;)_S 67 _t
(devices)_S 67 _t
(that)_S 67 _t
(are)_S 67 _t
(not)_S 67 _t
(interfaced)_S 67 _t
(over)_S 67 _t
(a)_S 67 _t
(serial)_S 67 _t
(port)_S 67 _t
(do)_S 67 _t
(not)_S 67 _t
(need)_S 67 _t
(the)_S 67 _t
7926 5494 _m
/Times-ItalicR 600 _ff
(address)_S 8548 5494 _m
/Times-RomanR 600 _ff
(,)_S 67 _t
8665 5494 _m
/Times-ItalicR 600 _ff
(irq)_S /Times-RomanR 600 _ff
1800 5259 _m
(or)_S 67 _t
2034 5259 _m
/Times-ItalicR 600 _ff
(buffsize)_S 2645 5259 _m
/Times-RomanR 600 _ff
67 _t
(parameters,)_S 67 _t
(and)_S 67 _t
(devices)_S 67 _t
(all)_S 67 _t
(have)_S 67 _t
(a)_S 67 _t
(default)_S 67 _t
6219 5259 _m
/Times-ItalicR 600 _ff
(mode)_S 6652 5259 _m
/Times-RomanR 600 _ff
(.)_S 134 _t
(The)_S 67 _t
7214 5259 _m
/Times-ItalicR 600 _ff
(name)_S 7647 5259 _m
/Times-RomanR 600 _ff
67 _t
(can)_S 67 _t
(be)_S 1800 5026 _m
(anything)_S 67 _t
(you)_S 67 _t
(like;)_S 67 _t
(however,)_S 67 _t
(it)_S 67 _t
(should)_S 67 _t
(be)_S 67 _t
(something)_S 67 _t
(that's)_S 67 _t
(referenced)_S 67 _t
(by)_S 67 _t
(the)_S 1800 4793 _m
(application.)_S 134 _t
(For)_S 67 _t
(example,)_S 2400 4381 _m
/CourierR 400 _ff
(device)_S 80 _t
(headtracker)_S 80 _t
(Redbaron)_S 80 _t
(0)_S 80 _t
(0x2F8)_S 80 _t
(3)_S 80 _t
(2000)_S 80 _t
/Times-RomanR 600 _ff
1800 3961 _m
(would)_S 67 _t
(set)_S 67 _t
(up)_S 67 _t
(the)_S 67 _t
(Logitech)_S 67 _t
(Red)_S 67 _t
(Baron)_S 67 _t
(ultrasonic)_S 67 _t
(tracking)_S 67 _t
(device;)_S 67 _t
(the)_S 67 _t
(device)_S 67 _t
(would)_S 67 _t
(be)_S 1800 3728 _m
(hooked)_S 67 _t
(up)_S 67 _t
(to)_S 67 _t
(COM2)_S 67 _t
(\(address)_S 67 _t
(=)_S 67 _t
(0x2F8,)_S 67 _t
(irq)_S 67 _t
(=)_S 67 _t
(3\))_S 67 _t
(with)_S 67 _t
(a)_S 67 _t
(2000)_S 67 _t
(byte)_S 67 _t
(buffer.)_S 134 _t
(The)_S 1800 3495 _m
(application)_S 67 _t
(would)_S 67 _t
(simply)_S 67 _t
(look)_S 67 _t
(up)_S 67 _t
(the)_S 67 _t
(device)_S 67 _t
(called)_S 67 _t
("headtracker")_S 67 _t
(and)_S 67 _t
(use)_S 67 _t
(the)_S 67 _t
(values)_S 67 _t
(it)_S 1800 3262 _m
(returns)_S 67 _t
(without)_S 67 _t
(having)_S 67 _t
(to)_S 67 _t
(worry)_S 67 _t
(about)_S 67 _t
(what)_S 67 _t
(kind)_S 67 _t
(of)_S 67 _t
(device)_S 67 _t
(it)_S 67 _t
(actually)_S 67 _t
(is.)_S 1200 2794 _m
(DEVCONFIG)_S 67 _t
2422 2794 _m
/Times-ItalicR 600 _ff
(name)_S 67 _t
(channel)_S 67 _t
(scale)_S 67 _t
(deadzone)_S /Times-RomanR 600 _ff
1800 2561 _m
(Sets)_S 67 _t
(the)_S 67 _t
(scale)_S 67 _t
(and)_S 67 _t
(deadzone)_S 67 _t
(parameters)_S 67 _t
(for)_S 67 _t
(a)_S 67 _t
(particular)_S 67 _t
(channel)_S 67 _t
(of)_S 67 _t
(a)_S 67 _t
(particular)_S 67 _t
(device.)_S 67 _t
1800 2326 _m
(The)_S 67 _t
2178 2326 _m
/Times-ItalicR 600 _ff
(name)_S 2611 2326 _m
/Times-RomanR 600 _ff
67 _t
(must)_S 67 _t
(match)_S 67 _t
(the)_S 67 _t
(name)_S 67 _t
(of)_S 67 _t
(a)_S 67 _t
(device)_S 67 _t
(already)_S 67 _t
(specified)_S 67 _t
(with)_S 67 _t
(a)_S 67 _t
(DEVICE)_S 1800 2091 _m
(statement.)_S 134 _t
(The)_S 67 _t
3129 2091 _m
/Times-ItalicR 600 _ff
(channel)_S 3762 2091 _m
/Times-RomanR 600 _ff
67 _t
(can)_S 67 _t
(be)_S 67 _t
(either)_S 67 _t
(a)_S 67 _t
(number)_S 67 _t
(or)_S 67 _t
(one)_S 67 _t
(of)_S 67 _t
(the)_S 67 _t
(special)_S 67 _t
(values)_S 67 _t
(X,)_S 67 _t
(Y,)_S 67 _t
(Z,)_S 1800 1856 _m
(XROT,)_S 67 _t
(YROT)_S 67 _t
(or)_S 67 _t
(ZROT.)_S 134 _t
(The)_S 67 _t
4391 1856 _m
/Times-ItalicR 600 _ff
(scale)_S 4802 1856 _m
/Times-RomanR 600 _ff
67 _t
(can)_S 67 _t
(be)_S 67 _t
(either)_S 67 _t
(a)_S 67 _t
(number)_S 67 _t
(\(in)_S 67 _t
(which)_S 67 _t
(case)_S 67 _t
(it's)_S 67 _t
(taken)_S 8800 1255 _m
(55)_S _ep
_bp /Times-RomanR 600 _ff
0 13200 10200 _ornt
/_r { sflg {/_t {0 rmoveto}bdef /ron false def}
{ /_S /show load def /_t {0 rmoveto}bdef /ron false def}ifelse
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1800 11855 _m
(to)_S 67 _t
(be)_S 67 _t
(a)_S 67 _t
(scalar)_S 67 _t
(distance\))_S 67 _t
(or)_S 67 _t
(a)_S 67 _t
(number)_S 67 _t
(with)_S 67 _t
(an)_S 67 _t
('a')_S 67 _t
(or)_S 67 _t
('A')_S 67 _t
(in)_S 67 _t
(front)_S 67 _t
(of)_S 67 _t
(it)_S 67 _t
(\(in)_S 67 _t
(which)_S 67 _t
(case)_S 67 _t
(it's)_S 1800 11620 _m
(taken)_S 67 _t
(to)_S 67 _t
(be)_S 67 _t
(an)_S 67 _t
(angle\).)_S 134 _t
(The)_S 67 _t
4096 11620 _m
/Times-ItalicR 600 _ff
(deadzone)_S 4852 11620 _m
/Times-RomanR 600 _ff
67 _t
(value)_S 67 _t
(is)_S 67 _t
(a)_S 67 _t
(number,)_S 67 _t
(specified)_S 67 _t
(in)_S 67 _t
(device)_S 1800 11385 _m
(coordinates.)_S 134 _t
(The)_S 67 _t
3284 11385 _m
/Times-ItalicR 600 _ff
(deadzone)_S 4039 11385 _m
/Times-RomanR 600 _ff
67 _t
(is)_S 67 _t
(optional,)_S 67 _t
(and)_S 67 _t
(defaults)_S 67 _t
(to)_S 67 _t
(zero.)_S 1800 11152 _m
(For)_S 67 _t
(example,)_S 2400 10686 _m
(devconfig)_S 67 _t
(headtracker)_S 67 _t
(2)_S 67 _t
(15)_S 1800 10220 _m
(would)_S 67 _t
(cause)_S 67 _t
(channel)_S 67 _t
(2)_S 67 _t
(\(the)_S 67 _t
(Z)_S 67 _t
(channel\))_S 67 _t
(to)_S 67 _t
(have)_S 67 _t
(a)_S 67 _t
(scale)_S 67 _t
(factor)_S 67 _t
(of)_S 67 _t
(15)_S 67 _t
(and)_S 67 _t
(a)_S 67 _t
(deadzone)_S 67 _t
(of)_S 1800 9987 _m
(zero,)_S 67 _t
(while)_S 2400 9521 _m
(devconfig)_S 67 _t
(headtracker)_S 67 _t
(YROT)_S 67 _t
(a45)_S 67 _t
(10)_S 1800 9055 _m
(would)_S 67 _t
(case)_S 67 _t
(channel)_S 67 _t
(4)_S 67 _t
(\(the)_S 67 _t
(Y)_S 67 _t
(rotation)_S 67 _t
(channel\))_S 67 _t
(to)_S 67 _t
(have)_S 67 _t
(an)_S 67 _t
(angular)_S 67 _t
(scale)_S 67 _t
(factor)_S 67 _t
(of)_S 67 _t
(45)_S 1800 8822 _m
(degrees)_S 67 _t
(and)_S 67 _t
(a)_S 67 _t
(deadzone)_S 67 _t
(of)_S 67 _t
(10)_S 67 _t
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(used)_S 67 _t
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(noutput_channels)_S 2934 4780 _m
/Times-RomanR 600 _ff
67 _t
(field)_S 67 _t
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(the)_S 67 _t
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(channels)_S 67 _t
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(look)_S 67 _t
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/CourierR 400 _ff
(int)_S 80 _t
(vrl_SpaceballOutput\(vrl_Device)_S 80 _t
(*dev,)_S 80 _t
(int)_S 80 _t
(parm1,)_S 80 _t
(vrl_Scalar)_S 80 _t
(parm2\))_S 2400 4002 _m
({)_S 2400 3869 _m
([...])_S 2400 3736 _m
(})_S 1200 3414 _m
/Times-RomanR 600 _ff
(The)_S 67 _t
1578 3414 _m
/Times-ItalicR 600 _ff
(parm1)_S 2100 3414 _m
/Times-RomanR 600 _ff
67 _t
(parameter)_S 67 _t
(is)_S 67 _t
(the)_S 67 _t
(output)_S 67 _t
(channel)_S 67 _t
(number,)_S 67 _t
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5897 3414 _m
/Times-ItalicR 600 _ff
(parm2)_S 6419 3414 _m
/Times-RomanR 600 _ff
67 _t
(is)_S 67 _t
(the)_S 67 _t
(value)_S 67 _t
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(reported.)_S 8800 1255 _m
(68)_S _ep
_ed end end
%-12345X