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- /* Copyright (c) 1992 The Geometry Center; University of Minnesota
- 1300 South Second Street; Minneapolis, MN 55454, USA;
-
- This file is part of geomview/OOGL. geomview/OOGL is free software;
- you can redistribute it and/or modify it only under the terms given in
- the file COPYING, which you should have received along with this file.
- This and other related software may be obtained via anonymous ftp from
- geom.umn.edu; email: software@geom.umn.edu. */
-
- /* Authors: Charlie Gunn, Stuart Levy, Tamara Munzner, Mark Phillips */
-
- #include "meshP.h"
-
- Mesh *
- MeshEvert(m)
- Mesh *m;
- {
- int i;
- Point3 *n;
-
- if (m)
- {
- if (m->flag & MESH_EVERT)
- m->flag &= ~MESH_EVERT;
- else
- m->flag |= MESH_EVERT;
- if (m->flag & MESH_N) {
- for (i = 0, n = m->n; i < m->nu*m->nv; i++,n++){
- n->x = -n->x;
- n->y = -n->y;
- n->z = -n->z;
- }
- } else {
- MeshComputeNormals(m);
- }
- }
- }
-