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PolyMesh.cc
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42
51 //== INCLUDES =================================================================
52
53 #include <ObjectTypes/PolyMesh/PolyMesh.hh>
54
55 #include <ACG/Scenegraph/MaterialNode.hh>
56 #include <ACG/Scenegraph/ManipulatorNode.hh>
57 #include <ACG/Scenegraph/StatusNodesT.hh>
58 #include <ACG/QtScenegraph/QtTranslationManipulatorNode.hh>
59
60 PolyMeshObject::PolyMeshObject(const PolyMeshObject& _object) : MeshObject< PolyMesh >(_object) {
61
62 }
63
64
65 PolyMeshObject::PolyMeshObject(DataType _typeId) : MeshObject< PolyMesh >(_typeId) {
66
67 }
68
69
70 PolyMeshObject::~PolyMeshObject() {
71
72 }
73
74 BaseObject* PolyMeshObject::copy() {
75 PolyMeshObject* object = new PolyMeshObject(*this );
76 return object;
77 }
78
80 ACG::Vec3d PolyMeshObject::refinePick(ACG::SceneGraph::PickTarget _pickTarget, const ACG::Vec3d _hitPoint, const ACG::Vec3d _start , const ACG::Vec3d _dir, const unsigned int _targetIdx ) {
81 if ( _pickTarget == ACG::SceneGraph::PICK_FACE) {
82 //don't refine poly faces
83 return _hitPoint;
84 }
85
86 if ( _pickTarget == ACG::SceneGraph::PICK_EDGE) {
87 // get picked edge handle
88 PolyMesh::EdgeHandle eh = mesh()->edge_handle(_targetIdx);
89 if(eh.is_valid())
90 {
91 PolyMesh::HalfedgeHandle heh = mesh()->halfedge_handle(eh,0);
92
93 //get vertices of the edge
94 PolyMesh::VertexHandle vhbegin = mesh()->to_vertex_handle(heh);
95 PolyMesh::VertexHandle vhend = mesh()->from_vertex_handle(heh);
96 ACG::Vec3d edgeStart = mesh()->point(vhbegin);
97 ACG::Vec3d edgeEnd = mesh()->point(vhend);
98
99 //retrieve the point on the edge that is closest to the backprojected hitpoint
100 ACG::Vec3d hitPointNew;
101 ACG::Geometry::distPointLineSquared(_hitPoint,edgeStart,edgeEnd,&hitPointNew);
102
103
104 return hitPointNew;
105 }
106 }
107
108 if ( _pickTarget == ACG::SceneGraph::PICK_VERTEX) {
109 // get picked vertex handle
110 PolyMesh::VertexHandle vh = mesh()->vertex_handle(_targetIdx);
111 if(vh.is_valid())
112 {
113 ACG::Vec3d hitpointNew = mesh()->point(vh);
114
115 //just return the vertex position
116 return hitpointNew;
117 }
118 }
119
120 return _hitPoint;
121 }
122
123
124 //=============================================================================
125
126
127
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:290
ACG::SceneGraph::PICK_EDGE
picks edges (may not be implemented for all nodes)
Definition: PickTarget.hh:80
ACG::SceneGraph::PICK_FACE
picks faces (should be implemented for all nodes)
Definition: PickTarget.hh:78
PolyMeshObject
Type for a Meshobject containing a poly mesh.
Definition: PolyMesh.hh:65
PolyMeshObject::~PolyMeshObject
virtual ~PolyMeshObject()
destructor
Definition: PolyMesh.cc:70
BaseObject
Definition: BaseObject.hh:82
OpenMesh::VectorT
Definition: Vector11T.hh:83
DataType
Predefined datatypes.
Definition: DataTypes.hh:83
MeshObject< PolyMesh >::mesh
PolyMesh * mesh()
return a pointer to the mesh
Definition: MeshObjectT_impl.hh:350
MeshObject
Definition: MeshObjectT.hh:97
ACG::SceneGraph::PickTarget
PickTarget
What target to use for picking.
Definition: PickTarget.hh:73
ACG::SceneGraph::PICK_VERTEX
picks verices (may not be implemented for all nodes)
Definition: PickTarget.hh:82
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:80
PolyMeshObject::copy
BaseObject * copy()
Definition: PolyMesh.cc:74
PolyMesh.hh
PolyMeshObject::PolyMeshObject
PolyMeshObject(const PolyMeshObject &_object)
copy constructor
Definition: PolyMesh.cc:60
OpenMesh::PolyMeshT::VertexHandle
Kernel::VertexHandle VertexHandle
Handle for referencing the corresponding item.
Definition: PolyMeshT.hh:136