Developer Documentation
GaussCurvature.cc
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41 
42 
43 
44 #include "GaussCurvature.hh"
45 
47 
48 
49 #include <MeshTools/Curvature.hh>
50 
53 
54 #ifdef USE_OPENMP
55 #endif
56 
57 
58 GaussCurvaturePlugin::GaussCurvaturePlugin()
59 {
60 }
61 
62 
63 GaussCurvaturePlugin::~GaussCurvaturePlugin()
64 {
65 }
66 
67 
68 
69 void GaussCurvaturePlugin::pluginsInitialized()
70 {
71  emit addTexture( "Gaussian Curvature" , "gauss_curvature.png" , 1 );
72  emit setTextureMode("Gaussian Curvature","clamp=true,clamp_min=-1,clamp_max=1,center=true");
73 
74  emit setSlotDescription(tr("computeGaussCurvature(int)"), tr("Compute the gaussian curvature on a mesh. The curvature will be stored on the mesh on the vertex property called \"Gaussian Curvature\""),
75  QStringList(tr("ObjectId")), QStringList(tr("Id of the mesh")));
76 }
77 
78 void GaussCurvaturePlugin::slotUpdateTexture( QString _textureName , int _identifier )
79 {
80  if ( _textureName != "Gaussian Curvature")
81  return;
82 
83  BaseObjectData* object;
84  if (! PluginFunctions::getObject( _identifier , object ) ) {
85  return;
86  }
87 
88  if ( object->dataType( DATA_TRIANGLE_MESH ) ) {
89  TriMesh* mesh = PluginFunctions::triMesh(object);
90  computeGaussianCurvature(mesh);
91  }
92 
93  if ( object->dataType( DATA_POLY_MESH ) ) {
94  PolyMesh* mesh = PluginFunctions::polyMesh(object);
95  computeGaussianCurvature(mesh);
96  }
97 
98  emit updatedTextures("Gaussian Curvature",_identifier);
99 }
100 
101 
103  BaseObjectData* object;
104  if (! PluginFunctions::getObject( _objectId , object ) ) {
105  return false;
106  }
107 
108  if ( object->dataType( DATA_TRIANGLE_MESH ) ) {
109  TriMesh* mesh = PluginFunctions::triMesh(object);
110  computeGaussianCurvature(mesh);
111  return true;
112  }
113 
114  if ( object->dataType( DATA_POLY_MESH ) ) {
115  PolyMesh* mesh = PluginFunctions::polyMesh(object);
116  computeGaussianCurvature(mesh);
117  return true;
118  }
119 
120  return false;
121 }
122 
123 
124 template< typename MeshT >
125 void GaussCurvaturePlugin::computeGaussianCurvature( MeshT* _mesh) {
127 
128  if(!_mesh->get_property_handle( gauss, "Gaussian Curvature"))
129  _mesh->add_property( gauss, "Gaussian Curvature" );
130 
131 #ifdef USE_OPENMP
132  std::vector< typename MeshT::VertexHandle > handles;
133  handles.reserve(_mesh->n_vertices());
134  for ( typename MeshT::VertexIter v_it = _mesh->vertices_begin() ; v_it != _mesh->vertices_end(); ++v_it)
135  handles.push_back( *v_it );
136 
137 
138  #pragma omp parallel for
139  for ( int i = 0 ; i < (int)handles.size(); ++i )
140  _mesh->property(gauss,handles[i]) = curvature::gauss_curvature(*_mesh,handles[i]);
141 
142 #else
143  for ( typename MeshT::VertexIter v_it = _mesh->vertices_begin() ; v_it != _mesh->vertices_end(); ++v_it)
144  _mesh->property(gauss,*v_it) = curvature::gauss_curvature(*_mesh,*v_it);
145 #endif
146 
147 }
148 
149 
#define DATA_TRIANGLE_MESH
Definition: TriangleMesh.hh:60
#define DATA_POLY_MESH
Definition: PolyMesh.hh:59
PolyMesh * polyMesh(BaseObjectData *_object)
Get a poly mesh from an object.
Functions for calculating curvatures.
bool getObject(const int _identifier, BaseObject *&_object)
Get the object which has the given identifier.
TriMesh * triMesh(BaseObjectData *_object)
Get a triangle mesh from an object.
bool dataType(DataType _type) const
Definition: BaseObject.cc:221
bool computeGaussCurvature(int _objectId)
Scripting slot to trigger computation of gaussian curvature.