1 // Copyright (C) 2007-2014 CEA/DEN, EDF R&D, OPEN CASCADE
3 // This library is free software; you can redistribute it and/or
4 // modify it under the terms of the GNU Lesser General Public
5 // License as published by the Free Software Foundation; either
6 // version 2.1 of the License, or (at your option) any later version.
8 // This library is distributed in the hope that it will be useful,
9 // but WITHOUT ANY WARRANTY; without even the implied warranty of
10 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
11 // Lesser General Public License for more details.
13 // You should have received a copy of the GNU Lesser General Public
14 // License along with this library; if not, write to the Free Software
15 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17 // See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
20 #include "GEOM_EdgeSource.h"
22 #include <vtkObjectFactory.h>
24 #include <vtkPoints.h>
25 #include <vtkCellArray.h>
27 #include <BRep_Tool.hxx>
28 #include <Poly_Polygon3D.hxx>
29 #include <Poly_Triangulation.hxx>
30 #include <TColStd_Array1OfInteger.hxx>
31 #include <Poly_PolygonOnTriangulation.hxx>
32 #include <GeomAdaptor_Curve.hxx>
33 #include <GCPnts_AbscissaPoint.hxx>
35 #include <vtkStripper.h>
36 #include <vtkPolyData.h>
37 #include <vtkInformation.h>
38 #include <vtkInformationVector.h>
40 vtkStandardNewMacro(GEOM_EdgeSource);
42 GEOM_EdgeSource::GEOM_EdgeSource() :
45 this->SetNumberOfInputPorts(0);
48 GEOM_EdgeSource::~GEOM_EdgeSource()
52 void GEOM_EdgeSource::AddEdge (const TopoDS_Edge& theEdge,
55 myEdgeSet.Add(theEdge);
56 myIsVector = theIsVector;
59 int GEOM_EdgeSource::RequestData(vtkInformation *vtkNotUsed(request),
60 vtkInformationVector **vtkNotUsed(inputVector),
61 vtkInformationVector *outputVector)
63 vtkInformation *outInfo = outputVector->GetInformationObject(0);
64 vtkPolyData *aPolyData = vtkPolyData::SafeDownCast(
65 outInfo->Get(vtkDataObject::DATA_OBJECT()));
67 aPolyData->Allocate();
68 vtkPoints* aPts = vtkPoints::New();
69 aPolyData->SetPoints(aPts);
72 TEdgeSet::Iterator anIter (myEdgeSet);
73 for (; anIter.More(); anIter.Next()) {
74 TopoDS_Edge anEdge = anIter.Value();
76 // draw curve direction (issue 0021087)
77 anEdge.Orientation( TopAbs_FORWARD );
78 OCC2VTK(anEdge,aPolyData,aPts,myIsVector||myIsVectorMode);
83 void GEOM_EdgeSource::OCC2VTK (const TopoDS_Edge& theEdge,
84 vtkPolyData* thePolyData,
88 Handle(Poly_PolygonOnTriangulation) aEdgePoly;
89 Standard_Integer i = 1;
90 Handle(Poly_Triangulation) T;
91 TopLoc_Location aEdgeLoc;
92 BRep_Tool::PolygonOnTriangulation(theEdge, aEdgePoly, T, aEdgeLoc, i);
94 Handle(Poly_Polygon3D) P;
95 if(aEdgePoly.IsNull())
96 P = BRep_Tool::Polygon3D(theEdge, aEdgeLoc);
98 if(P.IsNull() && aEdgePoly.IsNull())
104 Standard_Boolean isidtrsf = true;
105 if(!aEdgeLoc.IsIdentity()) {
107 edgeTransf = aEdgeLoc.Transformation();
112 if (aEdgePoly.IsNull()) {
113 Standard_Integer aNbNodes = P->NbNodes();
114 const TColgp_Array1OfPnt& aNodesP = P->Nodes();
117 aP2 = aNodesP(aNbNodes);
119 for (int j = 1; j < aNbNodes; j++) {
120 gp_Pnt pt1 = aNodesP(j);
121 gp_Pnt pt2 = aNodesP(j+1);
124 // apply edge transformation
125 pt1.Transform(edgeTransf);
126 pt2.Transform(edgeTransf);
129 float aCoord1[3] = {pt1.X(), pt1.Y(), pt1.Z()};
131 anIds[0] = thePts->InsertNextPoint(aCoord1);
133 float aCoord2[3] = {pt2.X(), pt2.Y(), pt2.Z()};
134 anIds[1] = thePts->InsertNextPoint(aCoord2);
136 thePolyData->InsertNextCell(VTK_LINE,2,anIds);
139 Standard_Integer aNbNodes = aEdgePoly->NbNodes();
140 const TColStd_Array1OfInteger& aNodeIds = aEdgePoly->Nodes();
141 const TColgp_Array1OfPnt& anId2Pnts = T->Nodes();
143 aP1 = anId2Pnts(aNodeIds(1));
144 aP2 = anId2Pnts(aNodeIds(aNbNodes));
146 for(int j = 1; j < aNbNodes; j++) {
147 Standard_Integer id1 = aNodeIds(j);
148 Standard_Integer id2 = aNodeIds(j+1);
150 gp_Pnt pt1 = anId2Pnts(id1);
151 gp_Pnt pt2 = anId2Pnts(id2);
154 // apply edge transformation
155 pt1.Transform(edgeTransf);
156 pt2.Transform(edgeTransf);
159 float aCoord1[3] = {pt1.X(), pt1.Y(), pt1.Z()};
161 anIds[0] = thePts->InsertNextPoint(aCoord1);
163 float aCoord2[3] = {pt2.X(), pt2.Y(), pt2.Z()};
164 anIds[1] = thePts->InsertNextPoint(aCoord2);
166 thePolyData->InsertNextCell(VTK_LINE,2,anIds);
171 // vector representation has an arrow on its end
175 // apply edge transformation
176 aP1.Transform(edgeTransf);
177 aP2.Transform(edgeTransf);
184 Handle(Geom_Curve) C = BRep_Tool::Curve(theEdge,fp,lp);
185 if ( theEdge.Orientation() == TopAbs_FORWARD ) {
186 C->D1(lp, aP2, aDirVec);
188 C->D1(fp, aP1, aDirVec);
192 GeomAdaptor_Curve aAdC;
193 aAdC.Load(C, fp, lp);
194 Standard_Real aDist = GCPnts_AbscissaPoint::Length(aAdC, fp, lp);
195 if (aDist < gp::Resolution()) return;
199 if ( theEdge.Orientation() == TopAbs_FORWARD )
200 aDirection = aDirVec;
202 aDirection = -aDirVec;
204 Standard_Real anAngle = M_PI/180.*5.;
205 Standard_Real aLength = aDist/10.;
207 Standard_Real dx,dy,dz;
208 aDirection.Coord(dx,dy,dz);
211 Standard_Real xo,yo,zo;
214 // Center of circle that arrow based
215 gp_XYZ aPc = aP2.XYZ() - aDirection.XYZ() * aLength;
217 // Construction of the base vectors for the arrow circle
219 if (Abs(dx) <= Abs(dy) && Abs(dx) <= Abs(dz)) aDirN = gp::DX();
220 else if (Abs(dy) <= Abs(dz) && Abs(dy) <= Abs(dx)) aDirN = gp::DY();
221 else aDirN = gp::DZ();
223 gp_Dir aDirI = aDirection ^ aDirN;
224 gp_Dir aDirJ = aDirection ^ aDirI;
226 // Add points and segments, composing the arrow
227 Standard_Real cosinus, sinus, Tg = tan(anAngle);
229 float coord[3] = {xo, yo, zo};
231 vtkIdType ptLoc = thePts->InsertNextPoint(coord);
232 vtkIdType ptFirst = 0;
233 vtkIdType ptPrev = 0;
239 for (int i = 1; i <= NbPoints; i++, ptPrev = ptCur)
241 cosinus = cos(2. * M_PI / NbPoints * (i-1));
242 sinus = sin(2. * M_PI / NbPoints * (i-1));
244 gp_XYZ aP = aPc + (aDirI.XYZ() * cosinus + aDirJ.XYZ() * sinus) * aLength * Tg;
250 ptCur = thePts->InsertNextPoint(coord);
257 // insert line (ptCur,ptPrev)
259 thePolyData->InsertNextCell(VTK_LINE,2,pts);
262 // insert line (ptCur,ptLoc)
264 thePolyData->InsertNextCell(VTK_LINE,2,pts);
267 // insert line (ptCur,ptFirst)
270 thePolyData->InsertNextCell(VTK_LINE,2,pts);
274 void GEOM_EdgeSource::SetVectorMode (bool theMode)
276 myIsVectorMode = theMode;
279 bool GEOM_EdgeSource::GetVectorMode ()
281 return !myIsVector && myIsVectorMode;