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Usage: planar [options] [input_file] Read a file in OFF format and convert overlapping coplanar polygons into non-overlapping polygon tiles. If input_file is not given the program reads from standard input. Options -h,--help this help message (run 'off_util -H help' for general help) --version version information -d <opt> blend overlapping (tile) or adjacent (merge) planar faces tile=1, merge=2 (default: none) -p <opt> polygon fill algorithm. angular=1, modulo2=2 (pnpoly) triangulation=3, even_overlap=4, alt_modulo2=5 (default: 1) -w <opt> winding rule, include face parts according to winding number odd, even, positive, negative, nonzero, zero (default: none) zodd, zeven, zpositive, znegative (includes zero) or symbol proceeding integer: eq, ne, gt, ge, lt, le meaning equal, not equal, greater than, greater than or equal, less than, less than or equal. use 'a' for absolute value e.g. gea2 -z use direction of normals for hemispherical winding numbers -V verbose output (of minimum and maximum winding numbers) -H turn off hole detection -S stitch seams created by tiling or merging -I rid faces of extra in-line vertices -e <opt> blend existing explicit edges and/or vertices using blend options e - edges, v - vertices, b - both (-d forces b, otherwise none) -E <opt> remove explicit edges, blend new ones using face colors (sets -S) e - edges only, v - also blend vertices (default: none) V - also blend invisible vertices, s - strip edges and vertices -D delete invisible faces created by winding rule -O <opt> orient the faces first (if possible) then for volume positive=1, negative=2, reverse=3, or use flip=4 which reverses the orientation of the model as it was input -C <xyz> center of model, in form 'X,Y,Z' (default: centroid) -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) Color Blending Options (for option -d) -M <mode> color blending mode. HSV=1, HSL=2, RGB=3 (default: 3) -s <sat> HSV/HSL saturation curve. Greather than 0 (default: 1) 1.0 - no curve. lower than 1.0 makes blends more pastel -t <val> HSV/HSL threshold to use average saturation (default: 1) between 0.0 (all averaging) and 1.0 (no averaging) -v <val> HSV/HSL value curve (default: 0) simulates subtractive coloring for blending 3 or more colors RGB: Red+Green+Blue = White Cyan+Magenta+Yellow = Black RYB: Red+Yellow+Blue = Black Green+Magenta+Orange = White 1.0 - no curve. lower than 1.0 number makes blends lighter 0.0 - use average value instead -u <val> HSV/HSL value advance. Rotates meaning of white and black valid values 0.0 to 120.0 degrees (default: 0) -a <int> alpha for blend. average=1, minimum=2, maximum=3 (default: 3) -y RYB mode. Blend colors as in Red-Yellow-Blue color wheel -c CMY mode. Complementary colors. RGB->(RYB/GMO)->CMY->blend -b <val> brightness adjustment for areas of blended colors valid values -1.0 to +1.0 (default: no adjustment) negative for darker, positive for lighter at 0, an area with 2 blended colors will not change but areas with 3 or more will become slightly darker Coloring Options (run 'off_util -H color' for help on color formats) -f <opt> take face colors from map (processed before -d) n - unique color for faces with same normals p - unique color for faces on same planes only o - unique color for faces on same and opposite normals -T <tran> face transparency. valid range from 0 (invisible) to 255 (opaque) -Z <col> color for areas found colorless by winding (default: invisible) key word: b - force a color blend -W <opt> color by winding number, using maps (overrides option -f) w - use actual winding number a - absolute value of winding number n - negative of absolute value of winding number -m <maps> color maps for faces to be tried in turn (default: compound) -n <maps> maps for negative winding numbers (default: rng17_S0V0.5:0) (map position zero not used. default is 16 gradients)
planar -d tile uc6 | antiview
polygon pri 12/4 | off_color -f K | planar -d tile | antiview
polygon pri 12/4 | off_color -f K | planar -d merge | antiview
planar -d tile -M rgb uc21_n5/2k4 -E e | antiview -v 0.01
planar -d tile -M rgb uc21_n5/2k4 | antiview -x ve
planar -d tile -M rgb -p 2 uc21_n5/2k4 | antiview -x ve
planar -d tile -W w -m map_white:red uc75 | antiview -x ve
planar was written by Roger Kaufman.
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