Developer Documentation

FaceFunctions.cc
1
2 /*===========================================================================*\
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41 \*===========================================================================*/
42
43
44
45
46 #include "MeshRepairPlugin.hh"
47 #include <MeshTools/MeshSelectionT.hh>
48
49 //-----------------------------------------------------------------------------
50
51 void
52 MeshRepairPlugin::detectTriangleAspect(int _objectId, float _aspect) {
53
54 // get the target mesh
55 TriMesh* mesh = 0;
56
57 PluginFunctions::getMesh(_objectId, mesh);
58
59 if (mesh) {
60
61 unsigned int count(0);
62
63 // Clear current face selection
64 MeshSelection::clearFaceSelection(mesh);
65
66 TriMesh::FaceIter f_it, f_end(mesh->faces_end());
67 TriMesh::FVIter fv_it;
68 TriMesh::FEIter fe_it;
69
70 for (f_it = mesh->faces_begin(); f_it != f_end; ++f_it) {
71 fv_it = mesh->fv_iter(*f_it);
72
73 const TriMesh::Point& p0 = mesh->point(*fv_it);
74 const TriMesh::Point& p1 = mesh->point(*(++fv_it));
75 const TriMesh::Point& p2 = mesh->point(*(++fv_it));
76
77 if (ACG::Geometry::aspectRatio(p0, p1, p2) > _aspect) {
78 mesh->status(*f_it).set_selected(true);
79 ++count;
80 }
81 }
82 if (count > 0) {
83 emit updatedObject(_objectId, UPDATE_SELECTION);
84 emit createBackup(_objectId, "Select triangles", UPDATE_SELECTION);
85 emit scriptInfo( "detectTriangleAspect(" + QString::number(_objectId) + ", " + QString::number(_aspect) + ")" );
86 }
87 emit log(
88 "Selected " + QString::number(count) + " triangles on object " + QString::number(_objectId)
89 + " with aspect ratio greater than " + QString::number(_aspect) + ".");
90 } else {
91 emit log("Cannot detect skinny triangles on non-trimesh " + QString::number(_objectId) + ".");
92 }
93 }
94
95 //-----------------------------------------------------------------------------
96
97 void
98 MeshRepairPlugin::flipOrientation(int _objectId) {
99
100 // get the target mesh
101 TriMesh* triMesh = 0;
102 PolyMesh* polyMesh = 0;
103
104 PluginFunctions::getMesh(_objectId,triMesh);
105 PluginFunctions::getMesh(_objectId,polyMesh);
106
107 if (triMesh)
108 flipOrientation(*triMesh);
109 else if (polyMesh)
110 flipOrientation(*polyMesh);
111 else
112 emit log( LOGERR,tr("Unsupported Object Type for normal flipping!") );
113
114
115 emit updatedObject(_objectId, UPDATE_ALL);
116 emit createBackup( _objectId, "Flipped Normals", UPDATE_ALL);
117 emit scriptInfo( "flipOrientation(" + QString::number(_objectId) + ")" );
118 }
119
120
121 //-----------------------------------------------------------------------------
OpenMesh::TriMesh_ArrayKernelT
Definition: PolyMesh_ArrayKernelT.hh:73
UPDATE_ALL
const UpdateType UPDATE_ALL(UpdateTypeSet(1))
Identifier for all updates.
OpenMesh::PolyMeshT::Point
Kernel::Point Point
Coordinate type.
Definition: PolyMeshT.hh:112
UPDATE_SELECTION
const UpdateType UPDATE_SELECTION(UpdateTypeSet(1)<< 4)
Selection updated.
LOGERR
Definition: LoggingInterface.hh:96
ACG::Geometry::aspectRatio
Scalar aspectRatio(const VectorT< Scalar, N > &_v0, const VectorT< Scalar, N > &_v1, const VectorT< Scalar, N > &_v2)
return aspect ratio (length/height) of triangle
Definition: Algorithms.cc:1256
PluginFunctions::getMesh
bool getMesh(int _identifier, PolyMesh *&_mesh)
Get the Poly Mesh which has the given identifier.
Definition: PluginFunctionsPolyMesh.cc:101
MeshSelectionT.hh
Functions for selection on a mesh.
OpenMesh::PolyMesh_ArrayKernelT
Definition: PolyMesh_ArrayKernelT.hh:94
MeshRepairPlugin::flipOrientation
void flipOrientation(int _objectId)
Flips the normals of all selected faces by changing the vertex order.
Definition: FaceFunctions.cc:98
MeshRepairPlugin::detectTriangleAspect
void detectTriangleAspect(int _objectId, float _aspect)
Detect triangles with aspect ratio greater than _aspect and select them.
Definition: FaceFunctions.cc:52