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SbMatrix.h
1 #ifndef COIN_SBMATRIX_H
2 #define COIN_SBMATRIX_H
3 
4 /**************************************************************************\
5  *
6  * This file is part of the Coin 3D visualization library.
7  * Copyright (C) 1998-2007 by Systems in Motion. All rights reserved.
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13  * distribution for additional information about the GNU GPL.
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25 \**************************************************************************/
26 
27 #include <stdio.h>
28 #include <Inventor/SbBasic.h>
29 
30 class SbLine;
31 class SbRotation;
32 class SbVec3f;
33 class SbVec4f;
34 
35 typedef float SbMat[4][4];
36 
37 class COIN_DLL_API SbMatrix {
38 public:
39  SbMatrix(void);
40  SbMatrix(const float a11, const float a12, const float a13, const float a14,
41  const float a21, const float a22, const float a23, const float a24,
42  const float a31, const float a32, const float a33, const float a34,
43  const float a41, const float a42, const float a43, const float a44);
44  SbMatrix(const SbMat & matrix);
45  SbMatrix(const SbMat * matrix);
46  ~SbMatrix(void);
47 
48  SbMatrix & operator =(const SbMat & m);
49 
50  operator float*(void);
51  SbMatrix & operator =(const SbMatrix & m);
52  void setValue(const SbMat & m);
53  const SbMat & getValue(void) const;
54 
55  void makeIdentity(void);
56  void setRotate(const SbRotation & q);
57  SbMatrix inverse(void) const;
58  float det3(int r1, int r2, int r3,
59  int c1, int c2, int c3) const;
60  float det3(void) const;
61  float det4(void) const;
62 
63  SbBool equals(const SbMatrix & m, float tolerance) const;
64 
65 
66  operator SbMat&(void);
67  float * operator [](int i);
68  const float * operator [](int i) const;
69  SbMatrix & operator =(const SbRotation & q);
70  SbMatrix & operator *=(const SbMatrix & m);
71  friend COIN_DLL_API SbMatrix operator *(const SbMatrix & m1, const SbMatrix & m2);
72  friend COIN_DLL_API int operator ==(const SbMatrix & m1, const SbMatrix & m2);
73  friend COIN_DLL_API int operator !=(const SbMatrix & m1, const SbMatrix & m2);
74  void getValue(SbMat & m) const;
75  static SbMatrix identity(void);
76  void setScale(const float s);
77  void setScale(const SbVec3f & s);
78  void setTranslate(const SbVec3f & t);
79  void setTransform(const SbVec3f & t, const SbRotation & r, const SbVec3f & s);
80  void setTransform(const SbVec3f & t, const SbRotation & r, const SbVec3f & s,
81  const SbRotation & so);
82  void setTransform(const SbVec3f & translation,
83  const SbRotation & rotation, const SbVec3f & scaleFactor,
84  const SbRotation & scaleOrientation, const SbVec3f & center);
85  void getTransform(SbVec3f & t, SbRotation & r,
86  SbVec3f & s, SbRotation & so) const;
87  void getTransform(SbVec3f & translation, SbRotation & rotation,
88  SbVec3f & scaleFactor, SbRotation & scaleOrientation,
89  const SbVec3f & center) const;
90  SbBool factor(SbMatrix & r, SbVec3f & s, SbMatrix & u, SbVec3f & t,
91  SbMatrix & proj);
92  SbBool LUDecomposition(int index[4], float & d);
93  void LUBackSubstitution(int index[4], float b[4]) const;
94  SbMatrix transpose(void) const;
95  SbMatrix & multRight(const SbMatrix & m);
96  SbMatrix & multLeft(const SbMatrix & m);
97  void multMatrixVec(const SbVec3f & src, SbVec3f & dst) const;
98  void multVecMatrix(const SbVec3f & src, SbVec3f & dst) const;
99  void multDirMatrix(const SbVec3f & src, SbVec3f & dst) const;
100  void multLineMatrix(const SbLine & src, SbLine & dst) const;
101  void multVecMatrix(const SbVec4f & src, SbVec4f & dst) const;
102 
103  void print(FILE * fp) const;
104 
105 private:
106  float matrix[4][4];
107 
108  void operator /=(const float v);
109  void operator *=(const float v);
110 };
111 
112 COIN_DLL_API SbMatrix operator *(const SbMatrix & m1, const SbMatrix & m2);
113 COIN_DLL_API int operator ==(const SbMatrix & m1, const SbMatrix & m2);
114 COIN_DLL_API int operator !=(const SbMatrix & m1, const SbMatrix & m2);
115 
116 #endif // !COIN_SBMATRIX_H
The SbVec4f class is a 4 dimensional vector with floating point coordinates.
Definition: SbVec4f.h:34
The SbRotation class represents a rotation in 3D space.SbRotation is used extensively throughout the ...
Definition: SbRotation.h:33
The SbVec3f class is a 3 dimensional vector with floating point coordinates.
Definition: SbVec3f.h:37
The SbLine class represents a line in 3D space.SbLine provides a way of specifying a directed line...
Definition: SbLine.h:32
The SbMatrix class is a 4x4 dimensional representation of a matrix.SbMatrix is used by many other cla...
Definition: SbMatrix.h:37

Copyright © 1998-2007 by Systems in Motion AS. All rights reserved.

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