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BREP_SIMPLE(1) BRL-CAD User Commands BREP_SIMPLE(1)

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

brep_simple

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

mged(1), libwdb(3)

BRL-CAD Team

This software is Copyright (c) 2004-2021 United States Government as represented by the U.S. Army Research Laboratory.

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

07/04/2025 BRL-CAD
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