Reference: BYTE, February 1985, and February 1986

The following programs accompany the article "Molecules in Color",
which describes COLOR3D.BAS, a color IBM PC version of MODEL3D.BAS,
a Macintosh program that appeared in the February 1985 BYTE.


COLOR3D.BAS -the program, which requires an IBM PC or compatible, and
BASICA
DATAGEN.BAS -a short program that generates the data file for tricarbonyl
(benzene)chromium

The following are data files to be used with COLOR3D.BAS:

B5H9.DAT \
B10H14.DAT \
C7H702N.DAT \
NACL.DAT \ These files must be on the default drive
CR(C6H6).DAT / when running COLOR3D: They contain the atomic patterns
Benzene.DAT / for the molecules to be displayed
ZRDIBENZ.DAT /
BENZENE.DAT /
PATTERNS.DAT - This data file generates the patterns that you may use with
COLOR3D.BAS

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above notes downloaded from BYTE BBS
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Additional Notes:

EXTRA FILE in ARCHIVE:

COLOR3D.EXE - compiled with quickbasic 2. This version is slightly different
from COLOR3d.BAS. It allows you to LOOP and EXIT at will, so that you
don't have to run the program three times to see three molecules. It also
asks you what drive the files are on, so that you can have the .DAT files
on floppies and COLOR3D.EXE on hard disk or different floppy.

COLOR3dx.EXE - The source for above.


If you don't have access to the articles above, what COLOR3D does is read a
.DAT file which has a list of the atoms, their positions, etc, and paints them
on an IBM COLORGRAPHICSADAPTER screen in 3-d.

The program will compile with MS QUICKBASIC 2, but NOT with IBM BASIC COMPILER
(due to character variable argument in paint statement.)



Suggestions on answering the programs input queries:
Viewing Distance (in Angstroms) - Try 6000 to 12000 to start
Scaling Size for Atoms - Try .5 to 1.5. The larger the atom, the longer
the program takes to paint them.

enjoy