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TextureControl1DTextureHandlingT.cc
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48 \*===========================================================================*/
49
50 #define TEXTURECONTROL_1D_TEXTURE_HANDLING_C
51
52 #include "TextureControl.hh"
53 #include "TextureMath.hh"
54
55 template< typename MeshT >
56 void TextureControlPlugin::copyTexture ( Texture& _texture , MeshT& _mesh, OpenMesh::VPropHandleT< double > _texProp )
57 {
58 // Compute the minimal and maximal values for this texture
59 double max = -FLT_MIN;
60 double min = FLT_MAX;
61
62
63 // Compute minimal and maximal value of the coordinates
64 // Keep track of absolute values!
65 for ( typename MeshT::VertexIter v_it = _mesh.vertices_begin() ; v_it != _mesh.vertices_end(); ++v_it) {
66
67 max = std::max( _mesh.property(_texProp,*v_it) , max);
68 min = std::min( _mesh.property(_texProp,*v_it) , min);
69
70 }
71
72
73 if ( !_mesh.has_vertex_texcoords2D() )
74 _mesh.request_vertex_texcoords2D();
75
76 TextureMath convert(_texture.parameters,min,max);
77
78 for ( typename MeshT::VertexIter v_it = _mesh.vertices_begin(); v_it != _mesh.vertices_end(); ++v_it) {
79 // Get the value of the property
80 double value = _mesh.property(_texProp, *v_it);
81
82 // Mangle it with the predefined user options (including absolute, clamping, ...)
83 value = convert.transform(value);
84
85 // Write result to the OpenMesh texture coordinates ( 2d accessing the diagonal of a 2d texture)
86 _mesh.set_texcoord2D( *v_it, ACG::Vec2f(float(value), float(value) ) );
87 }
88 }
89
90 template< typename MeshT >
91 void TextureControlPlugin::copyTexture ( Texture& _texture , MeshT& _mesh, OpenMesh::HPropHandleT< double > _texProp )
92 {
93 // Compute the minimal and maximal values for this texture
94 double max = -FLT_MIN;
95 double min = FLT_MAX;
96
97 // Compute minimal and maximal value of the coordinates
98 // Keep track of absolute values!
99 for ( typename MeshT::HalfedgeIter h_it = _mesh.halfedges_begin() ; h_it != _mesh.halfedges_end(); ++h_it) {
100
101 max = std::max( _mesh.property(_texProp,*h_it) , max);
102 min = std::min( _mesh.property(_texProp,*h_it) , min);
103
104 }
105
106 if ( !_mesh.has_halfedge_texcoords2D() )
107 _mesh.request_halfedge_texcoords2D();
108
109 TextureMath convert(_texture.parameters,min,max);
110
111 for ( typename MeshT::HalfedgeIter h_it = _mesh.halfedges_begin(); h_it != _mesh.halfedges_end(); ++h_it) {
112
113 // Get the value of the property
114 double value = _mesh.property(_texProp, *h_it);
115
116 // Mangle it with the predefined user options (including absolute, clamping, ...)
117 value = convert.transform(value);
118
119 // Write result to the OpenMesh texture coordinates ( 2d accessing the diagonal of a 2d texture)
120 _mesh.set_texcoord2D( *h_it, ACG::Vec2f(float(value), float(value) ) );
121 }
122 }
123
OpenMesh::HPropHandleT
Definition: Property.hh:501
Texture::parameters
TexParameters parameters
Parameters of the texture.
Definition: TextureData.hh:144
OpenMesh::VPropHandleT
Definition: Property.hh:487
TextureMath
Definition: TextureMath.hh:55
OpenMesh::VectorT
Definition: Vector11T.hh:83
Texture
Definition: TextureData.hh:74
TextureControlPlugin::copyTexture
void copyTexture(Texture &_texture, MeshT &_mesh, OpenMesh::VPropHandleT< double > _texProp)
Copy the supplied 1D vertex property to both coordinates of the 2D vertex OM texture property...
Definition: TextureControl1DTextureHandlingT.cc:56
TextureMath::transform
double transform(const double _input) const
Modify given values based on the specified parameters given to the constructor.
Definition: TextureMath.cc:95