brep_simple

## Name

brep_simple — constructs a simple boundary representation (b-rep) twisted cube

## Synopsis

`brep_simple`

## DESCRIPTION

brep_simple constructs a simple b-rep twisted cube directly using the openNURBS API. The constructed twisted cube is written to a geometry database (brep_simple.g) using the wdb interface. The cube is constructed by first defining and creating the vertices, then the twisted edges (using trimming curves), and finally the faces to get a final topology like the following:

H-------e6-------G
/ /|
/ | / |
/ e7 / e5
/ | / |
/ e10 |
/ | / |
e11 E- - e4- -/- - - F
/ / /
/ / / /
D---------e2-----C e9
| / | /
| e8 | /
e3 / e1 /
| | /
| / | /
| |/
A-------e0-------B

## SEE ALSO

mged(1), libwdb(3)

## AUTHORS

BRL-CAD Team

## COPYRIGHT

This software is Copyright (c) 2004-2023 United States Government as represented by the U.S. Army Research Laboratory.

## BUG REPORTS

Reports of bugs or problems should be submitted via electronic mail to `<devs@brlcad.org>`