Developer Documentation

TextureControl1DTextureHandlingOVMT_impl.hh
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41
42
43
44 #if defined(ENABLE_HEXAHEDRALMESH_SUPPORT) || defined(ENABLE_POLYHEDRALMESH_SUPPORT) || defined(ENABLE_TETRAHEDRALMESH_SUPPORT)
45
46 #define TEXTURECONTROL_1D_TEXTURE_HANDLING_OVM_C
47
48 #include "TextureControl.hh"
49 #include "TextureMath.hh"
50
51 template< typename VolumeMeshT, typename VolumeMeshObjectT >
52 void TextureControlPlugin::copyTexture( Texture& _texture , VolumeMeshT& _mesh, VolumeMeshObjectT& _obj, OpenVolumeMesh::VertexPropertyT< double > _texProp )
53 {
54 // Compute the minimal and maximal values for this texture
55 double max = -FLT_MIN;
56 double min = FLT_MAX;;
57
58 // Compute minimal and maximal value of the coordinates
59 // Keep track of absolute values!
60 for ( OpenVolumeMesh::VertexIter v_it = _mesh.vertices_begin() ; v_it != _mesh.vertices_end(); ++v_it) {
61
62 max = std::max( _texProp[*v_it] , max);
63 min = std::min( _texProp[*v_it] , min);
64
65 }
66
67 OpenVolumeMesh::TexCoordAttrib<ACG::Vec2f>& texcoord = _obj.texcoords();
68
69 TextureMath convert(_texture.parameters,min,max);
70
71 for ( OpenVolumeMesh::VertexIter v_it = _mesh.vertices_begin(); v_it != _mesh.vertices_end(); ++v_it) {
72 // Get the value of the property
73 double value = _texProp[*v_it];
74
75 // Mangle it with the predefined user options (including absolute, clamping, ...)
76 value = convert.transform(value);
77
78 // Write result to the OpenMesh texture coordinates ( 2d accessing the diagonal of a 2d texture)
79 texcoord[*v_it] = ACG::Vec2f(float(value), float(value) );
80 }
81 }
82
83 #endif
Texture::parameters
TexParameters parameters
Parameters of the texture.
Definition: TextureData.hh:138
Texture
Definition: TextureData.hh:68
ACG::Vec2f
VectorT< float, 2 > Vec2f
Definition: VectorT.hh:102
TextureMath
Definition: TextureMath.hh:49
OpenVolumeMesh::VertexIter
Definition: Iterators.hh:833
OpenVolumeMesh::PropertyTT
Definition: ForwardDeclarations.hh:18
OpenVolumeMesh::TexCoordAttrib< ACG::Vec2f >
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_impl.hh:50