blob: a3257c3c73d03d4d2d180b5c9302b4574b0c72ef (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
|
/**
* $Id$
* ***** BEGIN GPL/BL DUAL LICENSE BLOCK *****
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version. The Blender
* Foundation also sells licenses for use in proprietary software under
* the Blender License. See http://www.blender.org/BL/ for information
* about this.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
* All rights reserved.
*
* The Original Code is: all of this file.
*
* Contributor(s): none yet.
*
* ***** END GPL/BL DUAL LICENSE BLOCK *****
*/
/*
* Copyright (c) 2000 Gino van den Bergen <gino@acm.org>
*
* Permission to use, copy, modify, distribute and sell this software
* and its documentation for any purpose is hereby granted without fee,
* provided that the above copyright notice appear in all copies and
* that both that copyright notice and this permission notice appear
* in supporting documentation. Gino van den Bergen makes no
* representations about the suitability of this software for any
* purpose. It is provided "as is" without express or implied warranty.
*
*/
#ifndef MT_SCALAR_H
#define MT_SCALAR_H
#include <math.h>
#include <float.h>
#include "MT_random.h"
#include "NM_Scalar.h"
typedef double MT_Scalar;
const MT_Scalar MT_DEGS_PER_RAD(57.29577951308232286465);
const MT_Scalar MT_RADS_PER_DEG(0.01745329251994329547);
const MT_Scalar MT_PI(3.14159265358979323846);
const MT_Scalar MT_2_PI(6.28318530717958623200);
const MT_Scalar MT_EPSILON(1.0e-10);
const MT_Scalar MT_EPSILON2(1.0e-20);
const MT_Scalar MT_INFINITY(1.0e50);
inline int MT_sign(MT_Scalar x) {
return x < 0.0 ? -1 : x > 0.0 ? 1 : 0;
}
inline MT_Scalar MT_abs(MT_Scalar x) { return fabs(x); }
inline bool MT_fuzzyZero(MT_Scalar x) { return MT_abs(x) < MT_EPSILON; }
inline bool MT_fuzzyZero2(MT_Scalar x) { return MT_abs(x) < MT_EPSILON2; }
inline MT_Scalar MT_radians(MT_Scalar x) {
return x * MT_RADS_PER_DEG;
}
inline MT_Scalar MT_degrees(MT_Scalar x) {
return x * MT_DEGS_PER_RAD;
}
inline MT_Scalar MT_random() {
return MT_Scalar(MT_rand()) / MT_Scalar(MT_RAND_MAX);
}
#endif
|
