waterman - Waterman polyhedra
Usage: waterman [options] lattice
Use sphere-ray intersection for producing Waterman Polyhedra. Lattice can be
SC, FCC, or BCC
Options
-h,--help this help message (run 'off_util -H help' for general help)
--version version information
-v verbose output (on computational errors)
-l <lim> minimum distance for unique vertex locations as negative exponent
(default: 12 giving 1e-12)
-o <file> write output to file (default: write to standard output)
Program Options
-r <r,n> clip radius. r is radius taken to optional root n. n = 2 is sqrt
-q <cent> center of lattice, three comma separated coordinates
0 for origin (default: origin)
-m <mthd> 1 - sphere-ray intersection 2 - z guess (default: 1)
-f fill interior points (not for -C c)
-t defeat computational error testing for sphere-ray method
Scene Options
-C <opt> c - convex hull only, i - keep interior, s - suppress (default: c)
Coloring Options (run 'off_util -H color' for help on color formats)
-V <col> model vertex color (default: none)
-E <col> edge color (for convex hull, default: none)
-F <col> face color (for convex hull, default: none)
lower case outputs map indexes. upper case outputs color values
keyword: s,S color by symmetry using face normals
keyword: c,C color by symmetry using face normals (chiral)
-Z <col> fill vertex color (default: model vertex color)
-T <tran> face transparency. valid range from 0 (invisible) to 255 (opaque)
Make a Root 10 Waterman polyhedron
waterman -r rt20 fcc | antiview
Make a Root 50 Waterman polyhedron, with symmetrically coloured faces
waterman -r rt100 fcc -F S | antiview
Make a Root 50 Waterman polyhedron centred on an octahedron centre, with
symmetrically coloured faces
waterman -q 0.5,0.5,0.5 -r rt100 fcc -F S | antiview
waterman was written by
Roger Kaufman
(with contributions from Adrian Rossiter.)
For more details about these polyhedra see
Waterman Polyhedra
on Steve Waterman's site.
The program uses an efficient algorithm that makes it suitable for
calculating Waterman polyhedra up to root 1,000,000 and more.
Next:
sph_rings - rings of points on a sphere
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Programs and Documentation
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