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SbVec4f.h
1 #ifndef COIN_SBVEC4F_H
2 #define COIN_SBVEC4F_H
3
4 /**************************************************************************\
5 *
6 * This file is part of the Coin 3D visualization library.
7 * Copyright (C) by Kongsberg Oil & Gas Technologies.
8 *
9 * This library is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License
11 * ("GPL") version 2 as published by the Free Software Foundation.
12 * See the file LICENSE.GPL at the root directory of this source
13 * distribution for additional information about the GNU GPL.
14 *
15 * For using Coin with software that can not be combined with the GNU
16 * GPL, and for taking advantage of the additional benefits of our
17 * support services, please contact Kongsberg Oil & Gas Technologies
18 * about acquiring a Coin Professional Edition License.
19 *
20 * See http://www.coin3d.org/ for more information.
21 *
22 * Kongsberg Oil & Gas Technologies, Bygdoy Alle 5, 0257 Oslo, NORWAY.
23 * http://www.sim.no/ sales@sim.no coin-support@coin3d.org
24 *
25 \**************************************************************************/
26
27 #include <stdio.h>
28
29 #include <Inventor/SbBasic.h>
30 #ifndef NDEBUG
31 #include <Inventor/errors/SoDebugError.h>
32 #endif // !NDEBUG
33
34 class SbVec4d;
35 class SbVec4b;
36 class SbVec4s;
37 class SbVec4i32;
38 class SbVec3f;
39
40 class COIN_DLL_API SbVec4f {
41 public:
42 SbVec4f(void) { }
43 SbVec4f(const float v[4]) { vec[0] = v[0]; vec[1] = v[1]; vec[2] = v[2]; vec[3] = v[3]; }
44 SbVec4f(float x, float y, float z, float w) { vec[0] = x; vec[1] = y; vec[2] = z; vec[3] = w; }
45 explicit SbVec4f(const SbVec4d & v) { setValue(v); }
46 explicit SbVec4f(const SbVec4b & v) { setValue(v); }
47 explicit SbVec4f(const SbVec4s & v) { setValue(v); }
48 explicit SbVec4f(const SbVec4i32 & v) { setValue(v); }
49
50 SbVec4f & setValue(const float v[4]) { vec[0] = v[0]; vec[1] = v[1]; vec[2] = v[2]; vec[3] = v[3]; return *this; }
51 SbVec4f & setValue(float x, float y, float z, float w) { vec[0] = x; vec[1] = y; vec[2] = z; vec[3] = w; return *this; }
52 SbVec4f & setValue(const SbVec4d & v);
53 SbVec4f & setValue(const SbVec4b & v);
54 SbVec4f & setValue(const SbVec4s & v);
55 SbVec4f & setValue(const SbVec4i32 & v);
56
57 const float * getValue(void) const { return vec; }
58 void getValue(float & x, float & y, float & z, float & w) const { x = vec[0]; y = vec[1]; z = vec[2]; w = vec[3]; }
59
60 float & operator [] (int i) { return vec[i]; }
61 const float & operator [] (int i) const { return vec[i]; }
62
63 SbBool equals(const SbVec4f & v, float tolerance) const;
64 float dot(const SbVec4f & v) const { return vec[0] * v[0] + vec[1] * v[1] + vec[2] * v[2] + vec[3] * v[3]; }
65 void getReal(SbVec3f & v) const;
66 float length(void) const;
67 float sqrLength(void) const { return vec[0] * vec[0] + vec[1] * vec[1] + vec[2] * vec[2] + vec[3] * vec[3]; }
68 void negate(void) { vec[0] = -vec[0]; vec[1] = -vec[1]; vec[2] = -vec[2]; vec[3] = -vec[3]; }
69 float normalize(void);
70
71 SbVec4f & operator *= (float d) { vec[0] *= d; vec[1] *= d; vec[2] *= d; vec[3] *= d; return *this; }
72 SbVec4f & operator /= (float d) { SbDividerChk("SbVec4f::operator/=(float)", d); return operator *= (1.0f / d); }
73 SbVec4f & operator += (const SbVec4f & v) { vec[0] += v[0]; vec[1] += v[1]; vec[2] += v[2]; vec[3] += v[3]; return *this; }
74 SbVec4f & operator -= (const SbVec4f & v) { vec[0] -= v[0]; vec[1] -= v[1]; vec[2] -= v[2]; vec[3] -= v[3]; return *this; }
75 SbVec4f operator - (void) const { return SbVec4f(-vec[0], -vec[1], -vec[2], -vec[3]); }
76
77 void print(FILE * fp) const;
78
79 protected:
80 float vec[4];
81
82 }; // SbVec4f
83
84 COIN_DLL_API inline SbVec4f operator * (const SbVec4f & v, float d) {
85 SbVec4f val(v); val *= d; return val;
86 }
87
88 COIN_DLL_API inline SbVec4f operator * (float d, const SbVec4f & v) {
89 SbVec4f val(v); val *= d; return val;
90 }
91
92 COIN_DLL_API inline SbVec4f operator / (const SbVec4f & v, float d) {
93 SbDividerChk("operator/(SbVec4f,float)", d);
94 SbVec4f val(v); val /= d; return val;
95 }
96
97 COIN_DLL_API inline SbVec4f operator + (const SbVec4f & v1, const SbVec4f & v2) {
98 SbVec4f v(v1); v += v2; return v;
99 }
100
101 COIN_DLL_API inline SbVec4f operator - (const SbVec4f & v1, const SbVec4f & v2) {
102 SbVec4f v(v1); v -= v2; return v;
103 }
104
105 COIN_DLL_API inline int operator == (const SbVec4f & v1, const SbVec4f & v2) {
106 return ((v1[0] == v2[0]) && (v1[1] == v2[1]) && (v1[2] == v2[2]) && (v1[3] == v2[3]));
107 }
108
109 COIN_DLL_API inline int operator != (const SbVec4f & v1, const SbVec4f & v2) {
110 return !(v1 == v2);
111 }
112
113 #endif // !COIN_SBVEC4F_H

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