Developer Documentation

PlaneType.cc
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40 \*===========================================================================*/
41
42 #include "PlaneType.hh"
43
44 namespace ACG {
45 namespace Geometry {
46
47
48 void Plane::setPlane(const ACG::Vec3d& _position, const ACG::Vec3d& _xDirection, const ACG::Vec3d& _yDirection)
49 {
50 position = _position;
51 xDirection = _xDirection;
52 yDirection = _yDirection;
53 normal = (_xDirection % _yDirection).normalize();
54 }
55
56 //----------------------------------------------------------------
57
58 void Plane::setPlane(const ACG::Vec3d& _position, const ACG::Vec3d& _normal)
59 {
60
61 //find a non zero component
62 int comp = -1;
63 for (int i=0; i < 3; i++)
64 if ( _normal[i] != 0.0 ){
65 comp = i;
66 break;
67 }
68
69 if (comp == -1){
70 std::cerr << "PlaneNode: normal is invalid!" << std::endl;
71 return;
72 }
73
74 //compute orthogonal vectors in the plane
75 xDirection[comp] = (-_normal[ (comp + 1) % 3 ] - _normal[(comp + 2) % 3]) / _normal[comp];
76 xDirection[ (comp + 1) % 3 ] = 1;
77 xDirection[ (comp + 2) % 3 ] = 1;
78 xDirection = xDirection.normalize();
79
80 yDirection = _normal % xDirection;
81 yDirection = yDirection.normalize();
82
83 position = _position;
84 normal = _normal;
85 }
86
87 //----------------------------------------------------------------
88
89 void Plane::transform(const ACG::Matrix4x4d& _mat)
90 {
91 position = _mat.transform_point(position);
92 xDirection = _mat.transform_vector(xDirection);
93 yDirection = _mat.transform_vector(yDirection);
94
95 normal = (xDirection % yDirection).normalize();
96 }
97
98 //----------------------------------------------------------------
99
100 void Plane::setSize(double _xDirection, double _yDirection)
101 {
102 xDirection = xDirection.normalize() * _xDirection;
103 yDirection = yDirection.normalize() * _yDirection;
104 }
105
106 }} // namespaces
107
108 //=============================================================================
ACG
Namespace providing different geometric functions concerning angles.
Definition: BaseObjectData.hh:68
ACG::Geometry::Plane::setSize
void setSize(double _xDirection, double _yDirection)
Set plane size.
Definition: PlaneType.cc:100
OpenMesh::VectorT::normalize
auto normalize() -> decltype(*this/=std::declval< VectorT< S, DIM >>().norm())
Definition: Vector11T.hh:429
ACG::Matrix4x4T::transform_point
VectorT< T, 3 > transform_point(const VectorT< T, 3 > &_v) const
transform point (x&#39;,y&#39;,z&#39;,1) = M * (x,y,z,1)
Definition: Matrix4x4T_impl.hh:196
ACG::Geometry::Plane::setPlane
void setPlane(const ACG::Vec3d &_position, const ACG::Vec3d &_xDirection, const ACG::Vec3d &)
Set plane.
Definition: PlaneType.cc:48
ACG::Geometry::Plane::transform
void transform(const ACG::Matrix4x4d &_mat)
Transform the plane with given matrix.
Definition: PlaneType.cc:89
ACG::Matrix4x4T< double >
OpenMesh::VectorT
Definition: Vector11T.hh:83
ACG::Matrix4x4T::transform_vector
VectorT< T, 3 > transform_vector(const VectorT< T, 3 > &_v) const
transform vector (x&#39;,y&#39;,z&#39;,0) = A * (x,y,z,0)
Definition: Matrix4x4T_impl.hh:219