1 /* Copyright (C) 1992-1998 The Geometry Center
2 * Copyright (C) 1998-2000 Stuart Levy, Tamara Munzner, Mark Phillips
3 *
4 * This file is part of Geomview.
5 *
6 * Geomview is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU Lesser General Public License as published
8 * by the Free Software Foundation; either version 2, or (at your option)
9 * any later version.
10 *
11 * Geomview is distributed in the hope that it will be useful, but
12 * WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with Geomview; see the file COPYING. If not, write
18 * to the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139,
19 * USA, or visit http://www.gnu.org.
20 */
21
22
23 /* Authors: Charlie Gunn, Stuart Levy, Tamara Munzner, Mark Phillips */
24
25 #ifndef QUADPDEFS
26 #define QUADPDEFS
27
28 #include "geomclass.h"
29 #include "quad.h"
30 #include "bsptree.h"
31
32 #define QUAD_N VERT_N
33 #define QUAD_C VERT_C
34 #define QUAD_BINARY GEOMFLAG(0x01)
35
36 typedef HPoint3 QuadP[4];
37 typedef Point3 QuadN[4];
38 typedef ColorA QuadC[4];
39
40 struct Quad {
41 GEOMFIELDS;
42 int maxquad;
43 QuadP *p;
44 QuadN *n;
45 QuadC *c;
46 };
47
48 Quad *QuadPick(Quad *, Pick *, Appearance *,
49 Transform, TransformN *, int *axes);
50 Quad *QuadComputeNormals(Quad *q);
51
QuadRef(Quad * q)52 static inline Ref *QuadRef(Quad *q)
53 {
54 union castit {
55 Ref ref;
56 Quad quad;
57 };
58
59 return &((union castit *)q)->ref;
60 }
61
QuadGeom(Quad * q)62 static inline Geom *QuadGeom(Quad *q)
63 {
64 union castit {
65 Geom geom;
66 Quad quad;
67 };
68
69 return &((union castit *)q)->geom;
70 }
71
72 #endif /* ! QUADPDEFS */
73
74 /*
75 * Local Variables: ***
76 * c-basic-offset: 2 ***
77 * End: ***
78 */
79