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Blender
V2.59
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00001 #include "MT_Optimize.h" 00002 00003 00004 GEN_INLINE 00005 MT_Plane3:: 00006 MT_Plane3( 00007 const MT_Vector3 &a, 00008 const MT_Vector3 &b, 00009 const MT_Vector3 &c 00010 ){ 00011 MT_Vector3 l1 = b-a; 00012 MT_Vector3 l2 = c-b; 00013 00014 MT_Vector3 n = l1.cross(l2); 00015 n = n.safe_normalized(); 00016 MT_Scalar d = n.dot(a); 00017 00018 m_co[0] = n.x(); 00019 m_co[1] = n.y(); 00020 m_co[2] = n.z(); 00021 m_co[3] = -d; 00022 } 00023 00027 GEN_INLINE 00028 MT_Plane3:: 00029 MT_Plane3( 00030 const MT_Vector3 &n, 00031 const MT_Vector3 &p 00032 ){ 00033 00034 MT_Vector3 mn = n.safe_normalized(); 00035 MT_Scalar md = mn.dot(p); 00036 00037 m_co[0] = mn.x(); 00038 m_co[1] = mn.y(); 00039 m_co[2] = mn.z(); 00040 m_co[3] = -md; 00041 } 00042 00043 00047 GEN_INLINE 00048 MT_Plane3:: 00049 MT_Plane3( 00050 ): 00051 MT_Tuple4() 00052 { 00053 m_co[0] = MT_Scalar(1); 00054 m_co[1] = MT_Scalar(0); 00055 m_co[2] = MT_Scalar(0); 00056 m_co[3] = MT_Scalar(0); 00057 } 00058 00063 GEN_INLINE 00064 MT_Vector3 00065 MT_Plane3:: 00066 Normal( 00067 ) const { 00068 return MT_Vector3(m_co[0],m_co[1],m_co[2]); 00069 } 00070 00075 GEN_INLINE 00076 MT_Scalar 00077 MT_Plane3:: 00078 Scalar( 00079 ) const { 00080 return m_co[3]; 00081 } 00082 00083 GEN_INLINE 00084 void 00085 MT_Plane3:: 00086 Invert( 00087 ) { 00088 m_co[0] = -m_co[0]; 00089 m_co[1] = -m_co[1]; 00090 m_co[2] = -m_co[2]; 00091 m_co[3] = -m_co[3]; 00092 } 00093 00094 00099 GEN_INLINE 00100 MT_Plane3 & 00101 MT_Plane3:: 00102 operator = ( 00103 const MT_Plane3 & rhs 00104 ) { 00105 m_co[0] = rhs.m_co[0]; 00106 m_co[1] = rhs.m_co[1]; 00107 m_co[2] = rhs.m_co[2]; 00108 m_co[3] = rhs.m_co[3]; 00109 return *this; 00110 } 00111 00116 GEN_INLINE 00117 MT_Scalar 00118 MT_Plane3:: 00119 signedDistance( 00120 const MT_Vector3 &v 00121 ) const { 00122 return Normal().dot(v) + m_co[3]; 00123 } 00124 00125 00126 00127 00128