1 /*
2 * FTGL - OpenGL font library
3 *
4 * Copyright (c) 2001-2004 Henry Maddocks <ftgl@opengl.geek.nz>
5 * Copyright (c) 2008 Sam Hocevar <sam@hocevar.net>
6 *
7 * Permission is hereby granted, free of charge, to any person obtaining
8 * a copy of this software and associated documentation files (the
9 * "Software"), to deal in the Software without restriction, including
10 * without limitation the rights to use, copy, modify, merge, publish,
11 * distribute, sublicense, and/or sell copies of the Software, and to
12 * permit persons to whom the Software is furnished to do so, subject to
13 * the following conditions:
14 *
15 * The above copyright notice and this permission notice shall be
16 * included in all copies or substantial portions of the Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
19 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
21 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
22 * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
25 */
26
27 #include "config.h"
28
29 #include <math.h>
30
31 #include "FTGL/ftgl.h"
32
33 #pragma GCC diagnostic push
34 #pragma GCC diagnostic ignored "-Wfloat-equal"
35
operator ==(const FTPoint & a,const FTPoint & b)36 bool operator == (const FTPoint &a, const FTPoint &b)
37 {
38 return((a.values[0] == b.values[0]) && (a.values[1] == b.values[1]) && (a.values[2] == b.values[2]));
39 }
40
41
operator !=(const FTPoint & a,const FTPoint & b)42 bool operator != (const FTPoint &a, const FTPoint &b)
43 {
44 return((a.values[0] != b.values[0]) || (a.values[1] != b.values[1]) || (a.values[2] != b.values[2]));
45 }
46
47 #pragma GCC diagnostic pop
48
Normalise()49 FTPoint FTPoint::Normalise()
50 {
51 double norm = sqrt(values[0] * values[0]
52 + values[1] * values[1]
53 + values[2] * values[2]);
54 if(norm <= 0.0)
55 {
56 return *this;
57 }
58
59 FTPoint temp(values[0] / norm, values[1] / norm, values[2] / norm);
60 return temp;
61 }
62
63