off2m - Convert an OFF file to LiveGraphics3D 'm' format

Usage | Examples | Notes

Usage



Usage: off2m [options] [input_file]

Convert files in OFF format to 'm' format for display in LiveGraphics3D. 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 <dgts> number of significant digits (default 16) or if negative
             then the number of digits after the decimal point
   -t <type> display type for faces 0 - polygons, 1 - triangulate
                polygons (default)
   -o <file> write output to file (default: write to standard output)

Coloring Options (run 'off_util -H color' for help on color formats)
Note: transparency (alpha) is ignored. color name 'invisible' not allowed
   -V <col>  vertex color (default: 1.0,0.5,0.0)
   -E <col>  edge color (default: 0.8,0.6,0.8)
   -F <col>  face color (default: 0.8,0.8,0.9)
   -B <col>  background color (default: 0.9,0.9,0.9)
   -l        let LiveGraphics3D do the coloring itself

Scene options
   -v <size> vertex sphere size (default: 0.02 of bounding box diagonal)
   -e <size> frame model edge thickness size (default: 0.01 of bounding
             box diagonal if vertex sphere is 0, else vertex_rad/1.5)
   -x <elms> hide elements. The element string can include v, e and f
             to hide vertices, edges and faces
   -Y <view> specify the Live3D ViewPoint in form 'X,Y,Z'

Examples

Make a cube for display in LiveGraphics3D

off_util cube | off2m > cube.m

Use LiveGraphics3D coloring

off_util cube | off2m -l > cube.m

Make a thickened red cube frame with blue vertices

off_util cube | off2m -X ve -e 0.01 -E red -V blue > cube.m

Notes

off2m was developed by Roger Kaufman.

Converting off files to m files is for the most part obsolete and is here only as a legacy program. Converting m files to off format using m2off might be what you want.

Many years ago, I put together an off2m testing package which can be downloaded and used to view the off2m output.

LiveGraphics3D used java and is now considered obsolete. It may still work under a browser that run java apps such as Microsoft Edge in Internet Explorer mode. The development page is here: LiveGraphics3D Site.

Up: Programs and Documentation
Next: vr1tovr2 - Convert vrml 1.0 to vrml 2.0 via vrml1tovrml2.exe