1 // Copyright (C) 2013 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.
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 "CurveCreator_Utils.h"
21 #include "CurveCreator.hxx"
22 #include "CurveCreator_UtilsICurve.hxx"
24 #include <GEOMUtils.hxx>
29 #include <TopoDS_Vertex.hxx>
30 #include <TopoDS_Wire.hxx>
31 #include <TopoDS_Edge.hxx>
32 #include <TopoDS_Compound.hxx>
34 #include <AIS_ListOfInteractive.hxx>
35 #include <AIS_ListIteratorOfListOfInteractive.hxx>
36 #include <AIS_Shape.hxx>
37 #include <AIS_Line.hxx>
38 #include <AIS_Trihedron.hxx>
39 #include <AIS_LocalContext.hxx>
41 #include <Geom_Point.hxx>
42 #include <Geom_BSplineCurve.hxx>
43 #include <Geom_Line.hxx>
46 #include <TopExp_Explorer.hxx>
47 #include <GeomAPI_ProjectPointOnCurve.hxx>
48 #include <SelectMgr_EntityOwner.hxx>
49 #include <SelectMgr_Selection.hxx>
50 #include <Select3D_SensitivePoint.hxx>
52 #include <BRep_Tool.hxx>
53 #include <BRep_Builder.hxx>
54 #include <BRepBuilderAPI_MakeVertex.hxx>
55 #include <BRepBuilderAPI_MakeEdge.hxx>
56 #include <BRepBuilderAPI_MakeWire.hxx>
58 #include <TColgp_HArray1OfPnt.hxx>
59 #include <TColStd_HArray1OfBoolean.hxx>
60 #include <TColgp_Array1OfVec.hxx>
61 #include <GeomAPI_Interpolate.hxx>
63 #include <ProjLib.hxx>
68 #include "CurveCreator_ICurve.hxx"
70 const double LOCAL_SELECTION_TOLERANCE = 0.0001;
71 const int SCENE_PIXEL_PROJECTION_TOLERANCE = 10;
72 const int SCENE_PIXEL_POINT_TOLERANCE = 5;
74 //=======================================================================
75 // function : ConvertClickToPoint()
76 // purpose : Returns the point clicked in 3D view
77 //=======================================================================
78 void CurveCreator_Utils::ConvertPointToClick( const gp_Pnt& thePoint,
79 Handle(V3d_View) theView,
82 theView->Convert(thePoint.X(), thePoint.Y(), thePoint.Z(), x, y );
86 //=======================================================================
87 // function : ConvertClickToPoint()
88 // purpose : Returns the point clicked in 3D view
89 //=======================================================================
90 gp_Pnt CurveCreator_Utils::ConvertClickToPoint( int x, int y, Handle(V3d_View) aView )
92 return GEOMUtils::ConvertClickToPoint( x, y, aView );
95 void CurveCreator_Utils::constructShape( const CurveCreator_ICurve* theCurve,
96 TopoDS_Shape& theShape )
98 BRep_Builder aBuilder;
99 TopoDS_Compound aComp;
100 aBuilder.MakeCompound( aComp );
101 for( int iSection = 0 ; iSection < theCurve->getNbSections() ; iSection++ )
103 int theISection = iSection;
105 CurveCreator::SectionType aSectType = theCurve->getSectionType( theISection );
106 int aPointSize = theCurve->getNbPoints( theISection );
107 if ( aPointSize == 0 )
110 bool aSectIsClosed = theCurve->isClosed( theISection );
111 bool isPolyline = aSectType == CurveCreator::Polyline;
114 gp_Pnt aPrevPoint, aPoint;
115 // filters the curve points to skip equal points
116 std::vector<gp_Pnt> aPoints;
117 CurveCreator_UtilsICurve::getPoint( theCurve, theISection, iPoint, aPoint );
118 aPoints.push_back( aPoint );
121 for( ; iPoint < aPointSize; iPoint++ ) {
122 CurveCreator_UtilsICurve::getPoint( theCurve, theISection, iPoint, aPoint );
123 if ( !isEqualPoints( aPrevPoint, aPoint ) )
124 aPoints.push_back( aPoint );
127 int aNbPoints = aPoints.size();
129 if ( aNbPoints == 1 ) {
130 aPoint = aPoints.front();
131 TopoDS_Vertex aVertex = BRepBuilderAPI_MakeVertex( aPoint ).Vertex();
132 aBuilder.Add( aComp, aVertex );
134 else if ( aNbPoints > 1 ) {
135 Handle(TColgp_HArray1OfPnt) aHCurvePoints = new TColgp_HArray1OfPnt(1, aNbPoints);
136 TColgp_Array1OfVec aTangents(1, aNbPoints);
137 Handle(TColStd_HArray1OfBoolean) aTangentFlags = new TColStd_HArray1OfBoolean(1, aNbPoints);
138 gp_Vec aNullVec(0, 0, 0);
140 TopoDS_Edge aPointEdge;
141 TopoDS_Vertex aVertex;
143 std::vector<gp_Pnt>::const_iterator aPointIt = aPoints.begin(), aPointLast = aPoints.end();
147 aVertex = BRepBuilderAPI_MakeVertex( aPoint ).Vertex();
148 aBuilder.Add( aComp, aVertex );
150 aHCurvePoints->SetValue( aHIndex, aPoint );
151 aTangents.SetValue( aHIndex, aNullVec );
152 aTangentFlags->SetValue( aHIndex, Standard_False );
158 for( ; aPointIt != aPointLast; aPointIt++ ) {
160 aVertex = BRepBuilderAPI_MakeVertex( aPoint ).Vertex();
161 aBuilder.Add( aComp, aVertex );
163 TopoDS_Edge aPointEdge = BRepBuilderAPI_MakeEdge( aPrevPoint, aPoint ).Edge();
164 aBuilder.Add( aComp, aPointEdge );
167 aHCurvePoints->SetValue( aHIndex, aPoint );
168 aTangents.SetValue( aHIndex, aNullVec );
169 aTangentFlags->SetValue( aHIndex, Standard_False );
174 if( aSectIsClosed && ( aNbPoints > 2 ) ) {
175 aPoint = aPoints.front();
176 aVertex = BRepBuilderAPI_MakeVertex( aPoint ).Vertex();
177 aBuilder.Add( aComp, aVertex );
179 aPointEdge = BRepBuilderAPI_MakeEdge( aPrevPoint, aPoint ).Edge();
180 aBuilder.Add( aComp, aPointEdge );
185 Handle(Geom_BSplineCurve) aBSplineCurve;
186 GeomAPI_Interpolate aGBC(aHCurvePoints, aSectIsClosed, gp::Resolution());
187 aGBC.Load(aTangents, aTangentFlags);
191 aBSplineCurve = aGBC.Curve();
192 TopoDS_Edge anEdge = BRepBuilderAPI_MakeEdge( aBSplineCurve ).Edge();
193 TopoDS_Wire aWire = BRepBuilderAPI_MakeWire( anEdge ).Wire();
194 aBuilder.Add( aComp, aWire );
201 class CompareSectionToPoint
204 CompareSectionToPoint( const int theISection = -1, const int theIPoint = -1 )
205 : mySectionId( theISection ), myPointId( theIPoint ) {};
206 ~CompareSectionToPoint() {}
208 bool operator < ( const CompareSectionToPoint& theOther ) const
210 bool isLess = mySectionId < theOther.mySectionId;
211 if ( !isLess && mySectionId == theOther.mySectionId )
212 isLess = myPointId < theOther.myPointId;
222 void CurveCreator_Utils::getSelectedPoints( Handle(AIS_InteractiveContext) theContext,
223 const CurveCreator_ICurve* theCurve,
224 CurveCreator_ICurve::SectionToPointList& thePoints )
228 std::list<float> aSelectedPoints;
230 std::map<CompareSectionToPoint, int> aPointsMap;
232 CurveCreator_ICurve::SectionToPointList aPoints;
233 for ( theContext->InitSelected(); theContext->MoreSelected(); theContext->NextSelected() ) {
234 TopoDS_Vertex aVertex;
235 TopoDS_Shape aShape = theContext->SelectedShape();
236 if ( !aShape.IsNull() && aShape.ShapeType() == TopAbs_VERTEX )
237 aVertex = TopoDS::Vertex( theContext->SelectedShape() );
239 if ( aVertex.IsNull() )
241 aPnt = BRep_Tool::Pnt( aVertex );
243 CurveCreator_UtilsICurve::findSectionsToPoints( theCurve, aPnt.X(), aPnt.Y(), aPoints );
244 CurveCreator_ICurve::SectionToPointList::const_iterator anIt = aPoints.begin(),
245 aLast = aPoints.end();
246 CompareSectionToPoint aPoint;
247 for ( ; anIt != aLast; anIt++ ) {
248 aPoint = CompareSectionToPoint( (*anIt).first, (*anIt).second );
249 if ( aPointsMap.find( aPoint ) != aPointsMap.end() )
251 aPointsMap[aPoint] = 0;
253 thePoints.push_back( *anIt );
258 void CurveCreator_Utils::setSelectedPoints( Handle(AIS_InteractiveContext) theContext,
259 const CurveCreator_ICurve* theCurve,
260 const CurveCreator_ICurve::SectionToPointList& thePoints )
265 Handle(AIS_InteractiveObject) anAIS = theCurve->getAISObject();
266 if ( anAIS.IsNull() )
268 Handle(AIS_Shape) anAISShape = Handle(AIS_Shape)::DownCast( anAIS );
269 if ( anAISShape.IsNull() )
272 //ASL: we convert list of point indices to list of points coordinates
273 int aSize = thePoints.size();
274 std::vector<gp_Pnt> aPntsToSelect( aSize );
276 CurveCreator_ICurve::SectionToPointList::const_iterator
277 aPIt = thePoints.begin(), aPLast = thePoints.end();
278 CurveCreator_ICurve::SectionToPoint aSToPoint;
279 for( int i=0; aPIt != aPLast; aPIt++, i++ )
282 CurveCreator_UtilsICurve::getPoint( theCurve, aPIt->first, aPIt->second, aPntToSelect );
283 aPntsToSelect[i] = aPntToSelect;
286 theContext->ClearSelected( Standard_False );
287 //ASL: we switch off automatic highlight to improve performance of selection
288 theContext->SetAutomaticHilight( Standard_False );
290 Handle_SelectMgr_Selection aSelection = anAISShape->Selection( AIS_Shape::SelectionMode( TopAbs_VERTEX ) );
291 for( aSelection->Init(); aSelection->More(); aSelection->Next() )
293 Handle_SelectBasics_SensitiveEntity aSenEntity = aSelection->Sensitive();
294 Handle_Select3D_SensitivePoint aSenPnt = Handle_Select3D_SensitivePoint::DownCast( aSenEntity );
296 gp_Pnt anOwnerPnt = aSenPnt->Point();
297 Handle_SelectMgr_EntityOwner anOwner = Handle_SelectMgr_EntityOwner::DownCast( aSenPnt->OwnerId() );
300 CurveCreator_ICurve::SectionToPointList::const_iterator anIt = thePoints.begin(),
301 aLast = thePoints.end();
302 bool isFound = false;
303 for( int i=0; i<aSize; i++ )
305 bool isIntersect = fabs( aPntsToSelect[i].X() - anOwnerPnt.X() ) < LOCAL_SELECTION_TOLERANCE &&
306 fabs( aPntsToSelect[i].Y() - anOwnerPnt.Y() ) < LOCAL_SELECTION_TOLERANCE;
309 theContext->AddOrRemoveSelected( anOwner, Standard_False );
315 //ASL: we switch on again automatic highlight (otherwise selection will not be shown)
316 // and call HilightPicked to draw selected owners
317 theContext->SetAutomaticHilight( Standard_True );
318 theContext->LocalContext()->HilightPicked( Standard_True );
321 //=======================================================================
322 // function : setLocalPointContext
323 // purpose : Open/close the viewer local context
324 //=======================================================================
325 void CurveCreator_Utils::setLocalPointContext( const CurveCreator_ICurve* theCurve,
326 Handle(AIS_InteractiveContext) theContext,
333 // Open local context if there is no one
334 if ( !theContext->HasOpenedContext() ) {
335 theContext->ClearCurrents( false );
336 theContext->OpenLocalContext( false/*use displayed objects*/, true/*allow shape decomposition*/ );
338 // load the curve AIS object to the local context with the point selection
339 Handle(AIS_InteractiveObject) anAIS = theCurve->getAISObject();
340 if ( !anAIS.IsNull() )
342 if ( anAIS->IsKind( STANDARD_TYPE( AIS_Shape ) ) )
344 theContext->Load( anAIS, -1/*selection mode*/, true/*allow decomposition*/ );
345 theContext->Activate( anAIS, AIS_Shape::SelectionMode( (TopAbs_ShapeEnum)TopAbs_VERTEX ) );
350 if ( theContext->HasOpenedContext() )
351 theContext->CloseAllContexts();
355 bool CurveCreator_Utils::pointOnObject( Handle(V3d_View) theView,
356 Handle(AIS_InteractiveObject) theObject,
357 const int theX, const int theY,
359 gp_Pnt& thePoint1, gp_Pnt& thePoint2 )
361 bool isFullFound = false;
363 if ( theObject.IsNull() || theView.IsNull() )
365 Handle(AIS_Shape) aShape = Handle(AIS_Shape)::DownCast( theObject );
366 if ( aShape.IsNull() )
368 const TopoDS_Compound& aCompound = TopoDS::Compound( aShape->Shape() );
369 if ( aCompound.IsNull() )
372 gp_Pnt aCurPoint, aCurPoint1, aCurPoint2;
373 gp_Pnt aFoundPoint, aFoundPnt1, aFoundPnt2;
374 Standard_Real aParameter;
375 bool isFound = false;
376 int aDelta, aMinDelta = 2*SCENE_PIXEL_PROJECTION_TOLERANCE*SCENE_PIXEL_PROJECTION_TOLERANCE;
377 TopExp_Explorer anExp( aCompound, TopAbs_EDGE );
378 for ( ; anExp.More(); anExp.Next())
380 const TopoDS_Edge& anEdge = TopoDS::Edge(anExp.Current());
381 if ( anEdge.IsNull() )
383 Standard_Real aFirst, aLast;
384 Handle(Geom_Curve) aCurve = BRep_Tool::Curve( anEdge, aFirst, aLast );
385 if ( aCurve->IsKind( STANDARD_TYPE(Geom_BSplineCurve) ) ) {
386 Handle(Geom_BSplineCurve) aBSplineCurve =
387 Handle(Geom_BSplineCurve)::DownCast( aCurve );
388 if ( !aBSplineCurve.IsNull() ) {
389 isFound = hasProjectPointOnCurve( theView, theX, theY, aBSplineCurve,
390 aParameter, aDelta );
392 aCurPoint = aBSplineCurve->Value( aParameter );
393 Standard_Integer anI1, anI2;
394 aBSplineCurve->LocateU( aParameter, LOCAL_SELECTION_TOLERANCE, anI1, anI2 );
395 aCurPoint1 = aBSplineCurve->Value( aBSplineCurve->Knot( anI1 ) );
396 aCurPoint2 = aBSplineCurve->Value( aBSplineCurve->Knot( anI2 ) );
400 else { // a curve built on a polyline edge
401 Handle(Geom_Line) aGLine = Handle(Geom_Line)::DownCast( aCurve );
402 if ( aGLine.IsNull() )
404 isFound = hasProjectPointOnCurve( theView, theX, theY, aGLine, aParameter,
407 aCurPoint = aGLine->Value( aParameter );
408 TopoDS_Vertex V1, V2;
409 TopExp::Vertices( anEdge, V1, V2, Standard_True );
410 if ( V1.IsNull() || V2.IsNull() )
412 aCurPoint1 = BRep_Tool::Pnt(V1);
413 aCurPoint2 = BRep_Tool::Pnt(V2);
415 // check that the projected point is on the bounded curve
416 gp_Vec aVec1( aCurPoint1, aCurPoint );
417 gp_Vec aVec2( aCurPoint2, aCurPoint );
418 isFound = fabs( aVec1.Angle( aVec2 ) - M_PI ) < LOCAL_SELECTION_TOLERANCE;
421 if ( isFound && aMinDelta >= aDelta ) {
425 aFoundPnt1 = aCurPoint1;
426 aFoundPnt2 = aCurPoint2;
427 aFoundPoint = aCurPoint;
431 int aX, anY, aX1, anY1, aX2, anY2;
433 CurveCreator_Utils::ConvertPointToClick( aFoundPoint, theView, aX, anY );
434 CurveCreator_Utils::ConvertPointToClick( aFoundPnt1, theView, aX1, anY1 );
435 CurveCreator_Utils::ConvertPointToClick( aFoundPnt2, theView, aX2, anY2 );
437 isFullFound = !isEqualPixels( aX, anY, aX1, anY1, SCENE_PIXEL_POINT_TOLERANCE, aDelta ) &&
438 !isEqualPixels( aX, anY, aX2, anY2, SCENE_PIXEL_POINT_TOLERANCE, aDelta );
440 thePoint = aFoundPoint;
441 thePoint1 = aFoundPnt1;
442 thePoint2 = aFoundPnt2;
448 bool CurveCreator_Utils::hasProjectPointOnCurve( Handle(V3d_View) theView,
449 const int theX, const int theY,
450 const Handle(Geom_Curve)& theCurve,
451 Standard_Real& theParameter,
454 bool isFound = false;
455 if ( theView.IsNull() )
458 gp_Pnt aPoint = CurveCreator_Utils::ConvertClickToPoint( theX, theY, theView );
460 GeomAPI_ProjectPointOnCurve aProj( aPoint, theCurve );
461 Standard_Integer aNbPoint = aProj.NbPoints();
463 for (Standard_Integer j = 1; j <= aNbPoint && !isFound; j++) {
464 gp_Pnt aNewPoint = aProj.Point( j );
465 theParameter = aProj.Parameter( j );
468 CurveCreator_Utils::ConvertPointToClick( aNewPoint, theView, aX, anY );
470 isFound = isEqualPixels( aX, anY, theX, theY, SCENE_PIXEL_PROJECTION_TOLERANCE, theDelta );
476 bool CurveCreator_Utils::isEqualPixels( const int theX, const int theY, const int theOtherX,
477 const int theOtherY, const double theTolerance, int& theDelta )
479 int aXDelta = abs( theX - theOtherX );
480 int anYDelta = abs( theY - theOtherY );
482 theDelta = aXDelta*aXDelta + anYDelta*anYDelta;
484 return aXDelta < theTolerance && anYDelta < theTolerance;
487 bool CurveCreator_Utils::isEqualPoints( const gp_Pnt& thePoint, const gp_Pnt& theOtherPoint )
489 return theOtherPoint.IsEqual( thePoint, LOCAL_SELECTION_TOLERANCE );