Developer Documentation

VertexFunctions.cc
1
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41 \*===========================================================================*/
42
43
44
45 #include "MeshRepairPlugin.hh"
46 #include <MeshTools/MeshSelectionT.hh>
47
48 //-----------------------------------------------------------------------------
49
50
51 void MeshRepairPlugin::detectFlatValence3Vertices(int _objectId, double _angle) {
52
53 unsigned int count(0);
54
55 // get the target mesh
56 TriMesh* mesh = 0;
57 PluginFunctions::getMesh(_objectId,mesh);
58
59 if ( mesh ) {
60
61 // Clear current triangle selection
62 MeshSelection::clearVertexSelection(mesh);
63
64 TriMesh::VertexIter v_it, v_end(mesh->vertices_end());
65 TriMesh::VVIter vv_it;
66 TriMesh::VFIter vf_it;
67 TriMesh::FaceHandle fh;
68 std::vector<TriMesh::VertexHandle> vh(3);
69 TriMesh::Scalar cosangle(cos(_angle/180.0*M_PI));
70
71 for (v_it=mesh->vertices_begin(); v_it!=v_end; ++v_it)
72 {
73 if (!mesh->status(*v_it).deleted() && !mesh->is_boundary(*v_it) && mesh->valence(*v_it) == 3)
74 {
75 vf_it = mesh->vf_iter(*v_it);
76 const TriMesh::Normal& n0 = mesh->normal(*vf_it);
77 const TriMesh::Normal& n1 = mesh->normal(*(++vf_it));
78 const TriMesh::Normal& n2 = mesh->normal(*(++vf_it));
79
80 if ( (n0|n1) > cosangle &&
81 (n0|n2) > cosangle &&
82 (n1|n2) > cosangle )
83 {
84
85 mesh->status(*v_it).set_selected(true);
86 ++count;
87 }
88 }
89 }
90 }
91 else {
92 emit log(LOGERR, "Cannot detect flat triangles on non-trimesh " + QString::number(_objectId) + ".");
93 }
94
95 if (count > 0) {
96 emit updatedObject(_objectId, UPDATE_SELECTION);
97 emit createBackup(_objectId, "Select vertices", UPDATE_SELECTION);
98 }
99
100 emit log (LOGINFO,"Selected " + QString::number(count) + " vertices on object " + QString::number(_objectId) + " with face angle difference smaller than " + QString::number(_angle) + ".");
101 emit scriptInfo( "detectFlatValence3Vertices(" + QString::number(_objectId) + ", " + QString::number(_angle) + ")" );
102
103 }
104
105 //-----------------------------------------------------------------------------
106
107 void MeshRepairPlugin::removeSelectedVal3Vertices(int _objectId) {
108
109 unsigned int count = 0;
110
111 // get the target mesh
112 TriMesh* mesh = 0;
113 PluginFunctions::getMesh(_objectId, mesh);
114
115 if (mesh) {
116
117 TriMesh::VertexIter v_it, v_end(mesh->vertices_end());
118 TriMesh::VVIter vv_it;
119 TriMesh::VFIter vf_it;
120 int i;
121 std::vector<TriMesh::VertexHandle> vh(3);
122
123 for (v_it = mesh->vertices_begin(); v_it != v_end; ++v_it) {
124 vf_it = mesh->vf_iter(*v_it);
125 if ((mesh->status(*v_it).selected()) && !mesh->status(*v_it).feature() && mesh->valence(*v_it) == 3) {
126 for (i = 0, vv_it = mesh->vv_iter(*v_it); vv_it.is_valid(); ++vv_it, ++i)
127 vh[2 - i] = *vv_it;
128
129 mesh->delete_vertex(*v_it, false);
130 mesh->add_face(vh);
131
132 ++count;
133 }
134 }
135 if (count > 0)
136 mesh->garbage_collection();
137 }
138
139 if (count > 0) {
140 emit updatedObject(_objectId, UPDATE_ALL);
141 emit createBackup(_objectId, "Delete/merge selected vertices", UPDATE_ALL);
142 }
143 emit log("Deleted " + QString::number(count) + " vertices on object " + QString::number(_objectId) + ".");
144 }
145
146 //-----------------------------------------------------------------------------
LOGERR
Definition: LoggingInterface.hh:96
UPDATE_ALL
const UpdateType UPDATE_ALL(UpdateTypeSet(1))
Identifier for all updates.
OpenMesh::PolyMeshT::Normal
Kernel::Normal Normal
Normal type.
Definition: PolyMeshT.hh:114
OpenMesh::TriMesh_ArrayKernelT
Definition: PolyMesh_ArrayKernelT.hh:73
UPDATE_SELECTION
const UpdateType UPDATE_SELECTION(UpdateTypeSet(1)<< 4)
Selection updated.
MeshSelectionT.hh
Functions for selection on a mesh.
OpenMesh::PolyMeshT::Scalar
Kernel::Scalar Scalar
Scalar type.
Definition: PolyMeshT.hh:110
PluginFunctions::getMesh
bool getMesh(int _identifier, PolyMesh *&_mesh)
Get the Poly Mesh which has the given identifier.
Definition: PluginFunctionsPolyMesh.cc:101
MeshRepairPlugin::detectFlatValence3Vertices
void detectFlatValence3Vertices(int _objectId, double _angle)
Detect valence 3 vertices with faces that lie in the plane of their adjacent triangles.
Definition: VertexFunctions.cc:51
MeshRepairPlugin::removeSelectedVal3Vertices
void removeSelectedVal3Vertices(int _objectId)
Remove all selected valence 3 vertices.
Definition: VertexFunctions.cc:107
LOGINFO
Definition: LoggingInterface.hh:94