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PlaneType.cc
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49 
50 #include "PlaneType.hh"
51 
52 
53 //== IMPLEMENTATION ==========================================================
54 
55 
56 void Plane::setPlane(const ACG::Vec3d& _position, const ACG::Vec3d& _xDirection, const ACG::Vec3d& _yDirection)
57 {
58  position = _position;
59  xDirection = _xDirection;
60  yDirection = _yDirection;
61  normal = (_xDirection % _yDirection).normalize();
62 }
63 
64 //----------------------------------------------------------------
65 
66 void Plane::setPlane(const ACG::Vec3d& _position, const ACG::Vec3d& _normal)
67 {
68 
69  //find a non zero component
70  int comp = -1;
71  for (int i=0; i < 3; i++)
72  if ( _normal[i] != 0.0 ){
73  comp = i;
74  break;
75  }
76 
77  if (comp == -1){
78  std::cerr << "PlaneNode: normal is invalid!" << std::endl;
79  return;
80  }
81 
82  //compute orthogonal vectors in the plane
83  xDirection[comp] = (-_normal[ (comp + 1) % 3 ] - _normal[(comp + 2) % 3]) / _normal[comp];
84  xDirection[ (comp + 1) % 3 ] = 1;
85  xDirection[ (comp + 2) % 3 ] = 1;
86  xDirection = xDirection.normalize();
87 
88  yDirection = _normal % xDirection;
89  yDirection = yDirection.normalize();
90 
91  position = _position;
92  normal = _normal;
93 }
94 
95 //----------------------------------------------------------------
96 
98 {
99  position = _mat.transform_point(position);
100  xDirection = _mat.transform_vector(xDirection);
101  yDirection = _mat.transform_vector(yDirection);
102 
103  normal = (xDirection % yDirection).normalize();
104 }
105 
106 //----------------------------------------------------------------
107 
108 void Plane::setSize(double _xDirection, double _yDirection)
109 {
110  xDirection = xDirection.normalize() * _xDirection;
111  yDirection = yDirection.normalize() * _yDirection;
112 }
113 
114 
115 //=============================================================================
void transform(const ACG::Matrix4x4d &_mat)
Transform the plane with given matrix.
Definition: PlaneType.cc:97
VectorT< T, 3 > transform_vector(const VectorT< T, 3 > &_v) const
transform vector (x',y',z',0) = A * (x,y,z,0)
Definition: Matrix4x4T.cc:225
void setSize(double _xDirection, double _yDirection)
Set plane size.
Definition: PlaneType.cc:108
VectorT< T, 3 > transform_point(const VectorT< T, 3 > &_v) const
transform point (x',y',z',1) = M * (x,y,z,1)
Definition: Matrix4x4T.cc:202
void setPlane(const ACG::Vec3d &_position, const ACG::Vec3d &_xDirection, const ACG::Vec3d &)
Set plane.
Definition: PlaneType.cc:56