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PolyMesh.cc
Go to the documentation of this file.
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40 \*===========================================================================*/
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42 /*===========================================================================*\
43 * *
44 * $Revision: 21016 $ *
45 * $LastChangedBy: schultz $ *
46 * $Date: 2015-07-16 16:48:42 +0200 (Do, 16 Jul 2015) $ *
47 * *
48 \*===========================================================================*/
49
58 //== INCLUDES =================================================================
59
60 #include <ObjectTypes/PolyMesh/PolyMesh.hh>
61
62
63 PolyMeshObject::PolyMeshObject(const PolyMeshObject& _object) : MeshObject< PolyMesh >(_object) {
64
65 }
66
67
68 PolyMeshObject::PolyMeshObject(DataType _typeId) : MeshObject< PolyMesh >(_typeId) {
69
70 }
71
72
73 PolyMeshObject::~PolyMeshObject() {
74
75 }
76
77 BaseObject* PolyMeshObject::copy() {
78 PolyMeshObject* object = new PolyMeshObject(*this );
79 return object;
80 }
81
83 ACG::Vec3d PolyMeshObject::refinePick(ACG::SceneGraph::PickTarget _pickTarget, const ACG::Vec3d _hitPoint, const ACG::Vec3d _start , const ACG::Vec3d _dir, const unsigned int _targetIdx ) {
84 if ( _pickTarget == ACG::SceneGraph::PICK_FACE) {
85 //don't refine poly faces
86 return _hitPoint;
87 }
88
89 if ( _pickTarget == ACG::SceneGraph::PICK_EDGE) {
90 // get picked edge handle
91 PolyMesh::EdgeHandle eh = mesh()->edge_handle(_targetIdx);
92 if(eh.is_valid())
93 {
94 PolyMesh::HalfedgeHandle heh = mesh()->halfedge_handle(eh,0);
95
96 //get vertices of the edge
97 PolyMesh::VertexHandle vhbegin = mesh()->to_vertex_handle(heh);
98 PolyMesh::VertexHandle vhend = mesh()->from_vertex_handle(heh);
99 ACG::Vec3d edgeStart = mesh()->point(vhbegin);
100 ACG::Vec3d edgeEnd = mesh()->point(vhend);
101
102 //retrieve the point on the edge that is closest to the backprojected hitpoint
103 ACG::Vec3d hitPointNew;
104 ACG::Geometry::distPointLineSquared(_hitPoint,edgeStart,edgeEnd,&hitPointNew);
105
106
107 return hitPointNew;
108 }
109 }
110
111 if ( _pickTarget == ACG::SceneGraph::PICK_VERTEX) {
112 // get picked vertex handle
113 PolyMesh::VertexHandle vh = mesh()->vertex_handle(_targetIdx);
114 if(vh.is_valid())
115 {
116 ACG::Vec3d hitpointNew = mesh()->point(vh);
117
118 //just return the vertex position
119 return hitpointNew;
120 }
121 }
122
123 return _hitPoint;
124 }
125
126
127 //=============================================================================
128
129
130
MeshObject< PolyMesh >::mesh
PolyMesh * mesh()
return a pointer to the mesh
PolyMeshObject
Type for a Meshobject containing a poly mesh.
Definition: PolyMesh.hh:70
ACG::SceneGraph::PickTarget
PickTarget
What target to use for picking.
Definition: BaseNode.hh:99
ACG::SceneGraph::PICK_FACE
picks faces (should be implemented for all nodes)
Definition: BaseNode.hh:104
PolyMeshObject::refinePick
ACG::Vec3d refinePick(ACG::SceneGraph::PickTarget _pickTarget, const ACG::Vec3d _hitPoint, const ACG::Vec3d _start, const ACG::Vec3d _dir, const unsigned int _targetIdx)
Refine picking on triangle meshes.
Definition: PolyMesh.cc:83
ACG::SceneGraph::PICK_VERTEX
picks verices (may not be implemented for all nodes)
Definition: BaseNode.hh:108
ACG::SceneGraph::PICK_EDGE
picks edges (may not be implemented for all nodes)
Definition: BaseNode.hh:106
PolyMeshObject::PolyMeshObject
PolyMeshObject(const PolyMeshObject &_object)
copy constructor
Definition: PolyMesh.cc:63
BaseObject
Definition: BaseObject.hh:94
OpenMesh::VectorT
Definition: Vector11T.hh:83
PolyMeshObject::copy
BaseObject * copy()
Definition: PolyMesh.cc:77
PolyMesh.hh
OpenMesh::PolyMeshT::VertexHandle
Kernel::VertexHandle VertexHandle
Handle for referencing the corresponding item.
Definition: PolyMeshT.hh:139
MeshObject
Definition: MeshObjectT.hh:103
DataType
Predefined datatypes.
Definition: DataTypes.hh:96
ACG::Geometry::distPointLineSquared
Vec::value_type distPointLineSquared(const Vec &_p, const Vec &_v0, const Vec &_v1, Vec *_min_v)
squared distance from point _p to line segment (_v0,_v1)
Definition: Algorithms.cc:300
PolyMeshObject::~PolyMeshObject
virtual ~PolyMeshObject()
destructor
Definition: PolyMesh.cc:73