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370. NAMOD: A Computer Program for Drawing Perspective
Diagrams of Molecules
by Yoshitaka Beppu, Department of Physics, Faculty of
Science, Nagoya University, Nagoya 464, Japan
NAMOD (Nagoya University Molecular Structure Display
Program) is a subroutine-package composed of 27 sub-
programs.It is useful for drawing perspective
diagrams of molecules by the medium-sized computer
systems with graphic display or XY-plotter. It
displays ball-and-stick-type models with hidden lines
removed.
NAMOD is composed of about 2800 lines of code,
including 1000 for drawing perspective diagrams, 200
for performing three types of rotations of molecules,
100 for printing atomic distances and atomic valence-
angles, and 1500 for printing the manual of NAMOD. It
contains only standard FORTRAN statements in order to
fulfill device-independency. Namely, basic graphic
subroutines are called in MAIN-program supplied by the
user. Adjustable arrays are employed. Memory size,
cpu time and input data necessary for NAMOD are about
30% of those for ORTEP (Oak Ridge Thermal Ellipsoid
Plot) which is an excellent program for X-ray
crystallography. FACOM M-190 (Gibson-mix-time is 0.17
microseconds) requires 21 seconds and 160 Kb (40 kilo-
words) for drawing perspective diagram of insulin-dimer
composed of 808 atoms.
This program is executable on CDC 6600, FACOM M-190
(plus compatible with IBM 370/168), ACOS 77-700
(compatible with HONEYWELL), HITAC 8800, FACOM 230/48,
and FACOM 230/75, etc.
FORTRAN IV
Lines of Code: 2852
Recommended Citation: Y. Beppu, QCPE 11, 370 (1979).
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