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TextureControl1DTextureHandlingT.cc
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49 
50 #define TEXTURECONTROL_1D_TEXTURE_HANDLING_C
51 
52 #include "TextureControl.hh"
53 #include "TextureMath.hh"
54 
55 template< typename MeshT >
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 >
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 
TexParameters parameters
Parameters of the texture.
Definition: TextureData.hh:144
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...
double transform(const double _input) const
Modify given values based on the specified parameters given to the constructor.
Definition: TextureMath.cc:95