Dec 242017
 
Simulate view of earth's surface from satellite.
File GEOVIEW.ZIP from The Programmer’s Corner in
Category Science and Education
Simulate view of earth’s surface from satellite.
File Name File Size Zip Size Zip Type
ATT.BGI 6269 4333 deflated
CGA.BGI 6253 4305 deflated
EGAVGA.BGI 5363 3878 deflated
ENTRY.PAS 12735 2622 deflated
GEOVIEW.DOC 1971 1008 deflated
GEOVIEW.EXE 31712 19271 deflated
GEOVIEW.PAS 8224 2631 deflated
GEOVIEW.PNT 82080 53073 deflated
GOTH.CHR 8560 4355 deflated
GRINIT.PAS 10792 3064 deflated
GRKEY.PAS 7197 2186 deflated
GVGLOBAL.PAS 3216 951 deflated
HERC.BGI 6125 4292 deflated
IBM8514.BGI 6665 3434 deflated
LITT.CHR 2138 955 deflated
MAKEFILE 113 104 deflated
PC3270.BGI 6029 4205 deflated
SANS.CHR 5438 2748 deflated
SELECT.EXE 8192 5770 deflated
SELECT.PAS 1660 610 deflated
TRIP.CHR 7241 3673 deflated

Download File GEOVIEW.ZIP Here

Contents of the GEOVIEW.DOC file


GEOVIEW.PAS


Purpose
=======
Simulates a view of the earth's surface from a satellite orbiting
the earth. This program uses data from the Micro World Data Bank
II (MWDB II). GeoView is a fairly simplistic translation of the
SAT.PAS program supplied on disk 5 of the MWDB II distribution
package.

Starting GeoView
================
To run the program, make sure GEOVIEW.PNT is in the same directory
as GEOVIEW.EXE. Type GEOVIEW, then press return. You will be
prompted to enter satellite altitude, longitude, latitude and
detail level. Just press enter the first time to accept the
default view -- a view of the Chesapeake region from approximately
10,000 miles. Decrease the satellite altitude to zoom in on the
earth.

This sample point file, GEOVIEW.PNT, shows continents, countries,
islands, rivers and states at a maximum detail level of 4. You
will need the full MWDB II database (available from the BBS
mentioned above) to create higher detail point files. Use
SELECT.PAS program included with GEOVIEW (or the version provided
with MWDB II) to build these new point files from the original data
files.


Disclaimer
==========
I am distributing this program without claims of suitability for
anything. If you can find a use for this program, you have
benefited. You agree to accept full responsibility for any loss
incurred by the use of this program.

Notes
=====
I spent a few late hours converting the graphics library calls in
SAT.PAS to Turbo Pascal version 5.0 graphics function calls. I
made little or no effort to optimize for speed or efficiency. The
Turbo Pascal 5.0 graphics library supports Hercules, CGA, EGA, VGA
and others, so chances are GEOVIEW will work with your monitor.

I did this for fun, and I hope you may find some use for it.


Dave Peckham


p.s.You may leave mail for me regarding this program on Gary
Smith's Programmer's Corner, Columbia, MD. 301-596-1180




 December 24, 2017  Add comments

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