Developer Documentation

PolyLineScripting.cc
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40 \*===========================================================================*/
41
42 #include "PolyLinePlugin.hh"
43
44 //------------------------------------------------------------------------------
45
55 int PolyLinePlugin::generatePolyLineFromCut( int _objectId, Vector _planePoint, Vector _planeNormal, int _polyLineId ) {
56
57 // get object
58 BaseObjectData *obj;
59 PluginFunctions::getObject(_objectId, obj);
60
61 if (obj == 0){
62 emit log(LOGERR,tr("Unable to get object"));
63 return -1;
64 }
65
66 //get the intersection points
67
68 std::vector< ACG::Vec3d > linePoints;
69 bool closed = false;
70 if ( obj->dataType(DATA_TRIANGLE_MESH) ) {
71
72 TriMesh* mesh = PluginFunctions::triMesh(obj);
73
74 if ( mesh == 0 ) {
75 emit log(LOGERR,tr("Unable to get mesh"));
76 return -1;
77 }
78
79 //get an edge of the mesh that is cut by the plane
80 TriMesh::EdgeHandle eh = getCuttedEdge( *mesh, _planeNormal, _planePoint );
81
82 if ( !eh.is_valid() ) {
83 emit log(LOGERR,tr("Unable to find initial cut edge."));
84 return -1;
85 }
86
87 TriMesh::FaceHandle fh = mesh->face_handle( mesh->halfedge_handle(eh, 0) );
88
89 if (!fh.is_valid())
90 fh = mesh->face_handle( mesh->halfedge_handle(eh, 1) );
91
92 // get all intersection points
93 linePoints = getIntersectionPoints( mesh, fh.idx() , _planeNormal , _planePoint, closed);
94
95 } else {
96
97 PolyMesh* mesh = PluginFunctions::polyMesh(obj);
98
99 if ( mesh == 0 ) {
100 emit log(LOGERR,tr("Unable to get mesh"));
101 return -1;
102 }
103
104 //get a edge of the mesh that is cut by the plane
105 PolyMesh::EdgeHandle eh = getCuttedEdge( *mesh, _planeNormal, _planePoint );
106
107 if ( !eh.is_valid() ) {
108 emit log(LOGERR,tr("Unable to find initial cut edge."));
109 return -1;
110 }
111
112 PolyMesh::FaceHandle fh = mesh->face_handle( mesh->halfedge_handle(eh, 0) );
113
114 if (!fh.is_valid())
115 fh = mesh->face_handle( mesh->halfedge_handle(eh, 1) );
116
117 // get all intersection points
118 linePoints = getIntersectionPoints( mesh, fh.idx() , _planeNormal , _planePoint, closed);
119 }
120
121 if ( linePoints.empty() ) {
122 emit log(LOGERR,tr("No points from cut found."));
123 return -1;
124 }
125
126 //generate a polyLine from the intersection Points
127 int polyLineId = -1;
128
129 // add new polyline
130 if (_polyLineId == -1)
131 emit addEmptyObject(DATA_POLY_LINE,polyLineId);
132 else
133 polyLineId = _polyLineId;
134
135 // get current polylineobject
136 BaseObjectData *polyLineObj;
137 PluginFunctions::getObject(polyLineId, polyLineObj);
138
139 // get polyline object
140 PolyLineObject* currentPolyLine = PluginFunctions::polyLineObject(polyLineObj);
141
142 currentPolyLine->line()->clear();
143
144 for ( uint i = 0 ; i < linePoints.size(); ++i )
145 currentPolyLine->line()->add_point( (PolyLine::Point) linePoints[i] );
146
147 currentPolyLine->line()->set_closed(closed);
148 currentPolyLine->target(true);
149
150 return polyLineId;
151 }
152
153
154
163 IdList PolyLinePlugin::generatePolyLinesFromCut( int _objectId, Vector _planePoint, Vector _planeNormal) {
164
165 // List of generated lines
166 std::vector<int> lines;
167
168
169 // get object
170 BaseObjectData *obj;
171 PluginFunctions::getObject(_objectId, obj);
172
173 if (obj == 0){
174 emit log(LOGERR,tr("Unable to get object"));
175 return lines;
176 }
177
178 //get the intersection points
179
180 std::vector< std::vector< ACG::Vec3d > > linePoints;
181 bool closed = false;
182 if ( obj->dataType(DATA_TRIANGLE_MESH) ) {
183
184 TriMesh* mesh = PluginFunctions::triMesh(obj);
185
186 if ( mesh == 0 ) {
187 emit log(LOGERR,tr("Unable to get mesh"));
188 return lines;
189 }
190
191 // get all intersection points
192 linePoints = getMultipleIntersectionPoints( mesh, _planeNormal , _planePoint);
193
194 } else {
195
196 PolyMesh* mesh = PluginFunctions::polyMesh(obj);
197
198 if ( mesh == 0 ) {
199 emit log(LOGERR,tr("Unable to get mesh"));
200 return lines;
201 }
202
203 // get all intersection points
204 linePoints = getMultipleIntersectionPoints( mesh, _planeNormal , _planePoint);
205 }
206
207
208 // No lines found?
209 if ( linePoints.empty() ) {
210 emit log(LOGERR,tr("No cut lines found."));
211 return lines;
212 }
213
214
215 for ( unsigned int i = 0 ; i < linePoints.size(); ++i ) {
216
217 if ( linePoints[i].empty() )
218 continue;
219
220 //generate a polyLine from the intersection Points
221 int polyLineId = -1;
222
223 // add new polyline
224 emit addEmptyObject(DATA_POLY_LINE,polyLineId);
225
226 // get current polylineobject
227 BaseObjectData *polyLineObj;
228 PluginFunctions::getObject(polyLineId, polyLineObj);
229
230 // get polyline object
231 PolyLineObject* currentPolyLine = PluginFunctions::polyLineObject(polyLineObj);
232
233 currentPolyLine->line()->clear();
234
235 for ( unsigned int j = 0 ; j < linePoints[i].size(); ++j )
236 currentPolyLine->line()->add_point( (PolyLine::Point) linePoints[i][j] );
237
238 currentPolyLine->line()->set_closed(closed);
239 currentPolyLine->target(true);
240
241 lines.push_back(polyLineId);
242
243 }
244
245
246 return lines;
247 }
OpenMesh::TriMesh_ArrayKernelT
Definition: PolyMesh_ArrayKernelT.hh:73
ACG::PolyLineT::add_point
void add_point(const Point &_p)
Append a point to the polyline.
Definition: PolyLineT_impl.hh:283
PolyLinePlugin::generatePolyLinesFromCut
IdList generatePolyLinesFromCut(int _objectId, Vector _planePoint, Vector _planeNormal)
Generates a polyLine of a plane intersection.
Definition: PolyLineScripting.cc:163
ACG::PolyLineT::set_closed
void set_closed(const bool _c)
Set if the polyline should be closed and therefore forms a loop.
Definition: PolyLineT.hh:113
PolyLineObject
Definition: PolyLineObject.hh:76
PolyLinePlugin::getMultipleIntersectionPoints
std::vector< std::vector< ACG::Vec3d > > getMultipleIntersectionPoints(MeshT *_mesh, ACG::Vec3d _planeNormal, ACG::Vec3d _planePoint)
get all points from the intersection between mesh and plane
Definition: PolyLinePluginT_impl.hh:287
PolyLineObject::line
PolyLine * line()
return a pointer to the line
Definition: PolyLineObject.cc:199
BaseObject::dataType
bool dataType(DataType _type) const
Definition: BaseObject.cc:221
PolyLinePlugin::getIntersectionPoints
std::vector< ACG::Vec3d > getIntersectionPoints(MeshT *_mesh, uint _fh, ACG::Vec3d _planeNormal, ACG::Vec3d _planePoint, bool &_closed)
get the points from the closest connected intersection between mesh and plane
Definition: PolyLinePluginT_impl.hh:204
PluginFunctions::triMesh
TriMesh * triMesh(BaseObjectData *_object)
Get a triangle mesh from an object.
Definition: PluginFunctionsTriangleMesh.cc:134
LOGERR
Definition: LoggingInterface.hh:96
BaseObject::target
bool target()
Definition: BaseObject.cc:273
PluginFunctions::getObject
bool getObject(const int _identifier, BaseObject *&_object)
Get the object which has the given identifier.
Definition: PluginFunctions.cc:294
PolyLinePlugin::getCuttedEdge
MeshT::EdgeHandle getCuttedEdge(MeshT &_mesh, ACG::Vec3d &_planeNormal, ACG::Vec3d &_planePoint)
get an edge of the mesh that is cut by the plane
Definition: PolyLinePluginT_impl.hh:234
IdList
std::vector< int > IdList
Standard Type for id Lists used for scripting.
Definition: DataTypes.hh:179
ACG::PolyLineT::clear
void clear()
Clear the current polyline.
Definition: PolyLineT_impl.hh:182
OpenMesh::PolyMesh_ArrayKernelT
Definition: PolyMesh_ArrayKernelT.hh:94
DATA_POLY_LINE
#define DATA_POLY_LINE
Definition: PolyLine.hh:64
OpenMesh::VectorT
Definition: Vector11T.hh:83
PolyLinePlugin::generatePolyLineFromCut
int generatePolyLineFromCut(int _objectId, Vector _planePoint, Vector _planeNormal, int _polyLineId=-1)
Generates a polyLine of a plane intersection.
Definition: PolyLineScripting.cc:55
PluginFunctions::polyMesh
PolyMesh * polyMesh(BaseObjectData *_object)
Get a poly mesh from an object.
Definition: PluginFunctionsPolyMesh.cc:128
DATA_TRIANGLE_MESH
#define DATA_TRIANGLE_MESH
Definition: TriangleMesh.hh:60
BaseObjectData
Definition: BaseObjectData.hh:102
PluginFunctions::polyLineObject
PolyLineObject * polyLineObject(BaseObjectData *_object)
Cast an BaseObject to a PolyLineObject if possible.
Definition: PluginFunctionsPolyLine.cc:142