repel  equilibrium of points repelling on a sphere
Usage: repel [options] [input_file]
An equilibrium position is found for a set of points which repel each
other. The initial coordinates are read from input_file if given (or
from standard input), otherwise use N to generate a random set.
Options
h,help this help message (run 'off_util H help' for general help)
version version information
N <num> initialise with a number of randomly placed points
n <itrs> maximum number of iterations (default: no limit)
s <perc> percentage to shorten the travel distance (default: adaptive)
l <lim> minimum distance change to terminate, as negative exponent
(default: 12 giving 1e12)
r <rep> repelling formula
1  inverse of distance
2  inverse square of distance (default)
3  inverse cube of distance
4  inverse square root of distance
o <file> write output to file (default: write to standard output)
Make a snub cube
repel N 24 l 15  conv_hull o snub_cube.off
Make a snub cube in fewer iterations by not using adaptive shortening
repel N 24 s 1 l 15  conv_hull o snub_cube.off
The default adaptive shortening of travel will not always be quickest.
It is worth experimenting with specific values using option s.
However, in the snub cube examples above the adaptive shortening gives
better results, producing more accurate squares.
The progress report includes the number of iterations, the greatest
distance moved by a point, the shortening factor, and the sum of all
the forces.
If adaptive shortening is used then there is also a line of figures
showing the number of times out of ten that the shortening factor
was increased.
Next:
lat_grid  lattices and grids with integer coordinates
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Programs and Documentation
