.\" DO NOT MODIFY THIS FILE! It was generated by help2man 1.47.5. .TH STL_CONVEX "1" "December 2017" "stl_convex v1.1" "User Commands" .SH NAME stl_convex \- stl_convex prints whether an STL file is a convex polyhedron. .SH DESCRIPTION stl_convex prints whether an STL file is a convex polyhedron. .PP usage: stl_convex [ \fB\-v\fR ] [ ] .IP Prints whether the input file is a convex polyhedron. If no input file is specified, data is read from stdin. If \fB\-v\fR is specified, prints out the Euler characteristic in addition to whether the mesh is convex. .PP The Euler characteristic of a polyhedral surface is defined as V \- E + F, where V is the number of vertices, E is the number of edges, and F is the number of faces. All convex polyhedra will have an Euler characteristic of 2.