This program follow the usual GNU command line syntax, with long options starting with two dashes (`-').
A summary of options is included below.
-G, --gnuplot
Writes isolines in gnuplot format.
--component
Color faces according to the component they belong too.
--quality
Color faces according to their quality.
--area Color faces according to their area.
--incomp
Color incompatible faces.
-fVAL, --fold=VAL
Color faces which make an angle smaller than VAL degrees with any of their neighbors.
-t, --faces
Output individual faces.
--epv Color vertices according to number of edges per vertex.
-HC, --height=C
Color vertices according to their C coordinate.
-g, --gaussian
Color vertices according to Gaussian curvature.
-C, --curvature
Color vertices according to mean curvature.
--boundary
Output boundary edges.
-eA, --feature=A
Output `feature' edges defined by angle A.
--non-manifold
Output non-manifold edges.
--duplicate
Output duplicate edges.
-iN, --isolines=N
Draw N isolines (levels of constant altitude).
-IL, --isolines=L
Draw isoline at level L.
--cmap=FILE
Load FILE as colormap.
-mVAL, --min=VAL
Use VAL as minimum scaling value.
-MVAL, --max=VAL
Use VAL as maximum scaling value.
-r, --reverse
Reverse colormap.
-n, --nosurface
Do not output surface.
-FC, --flatten=C
Set C coordinate to average value.
-v, --verbose
Display surface statistics.
-h, --help
Display the help and exit.