alt_color - Alternate Color Methods

Usage | Examples | Notes

Usage



Usage: alt_color [options] [input_file]

Alternate Color Methods.

Options
  -h,--help this help message (run 'off_util -H help' for general help)
  --version version information
  -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)

Coloring Options (run 'off_util -H color' for help on color formats)
(run 'off_color -h' for help on other color options). Lowercase letters color
using index numbers and uppercase letters color using color values.
keyword: none - sets no color
  -F <col>  color the faces according to: (default: none)
               h - face/face connection count (model is altered with kis)
               b - color faces by convexity using all dihedral angles
  -E <col>  color the edges according to: (default: none)
               b - color edges by convexity of dihedral angle
  -V <col>  color the vertices: (default: none)
  -T <t,e>  transparency. from 0 (invisible) to 255 (opaque). element is any
            or all of, v - vertices, e - edges, f - faces, a - all (default: f)
  -m <maps> a comma separated list of color maps used to transform color
            indexes (default: colorful), a part consisting of letters from
            v, e, f, selects the element types to apply the map list to
            (default 'vef'). use map name of 'index' to output index numbers
               colorful:   red,darkorange1,yellow,darkgreen,cyan,blue,magenta,
                           white,gray50,black
               convexity:  white,gray50,gray25 (for -F b, -E b)

Examples

Display Skilling's figure showing there are places where more than two faces meet at an edge. off_color shows edges with the same condition

alt_color -F h skilling | antiview -x ve
off_color -e N skilling | antiview -v 0.02

Display the 10th miller stellation showing there are places where more than two faces meet at an edge. off_color shows edges with the same condition

miller 10 | alt_color -F h | antiview
miller 10 | off_color -e N | antiview -v 0.02

Display an example of a model generated with Conway Notation using an older planarization method that isn't completely convex

conway m^3C -p b | alt_color -F b -E b | antiview -v 0.01

Notes

alt_color was developed by Roger Kaufman,

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