src/HYDROCurveCreator/CurveCreator_Utils.cxx

   1 // Copyright (C) 2013  CEA/DEN, EDF R&D, OPEN CASCADE
   2 //
   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.
   7 //
   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.
  12 //
  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
  16 //
  17 // See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
  18 //
  19
  20 #include "CurveCreator_Utils.h"
  21 #include "CurveCreator.hxx"
  22 #include "CurveCreator_UtilsICurve.hxx"
  23
  24 #include <GEOMUtils.hxx>
  25
  26 #include <gp_Pln.hxx>
  27
  28 #include <TopoDS.hxx>
  29 #include <TopoDS_Vertex.hxx>
  30 #include <TopoDS_Wire.hxx>
  31 #include <TopoDS_Edge.hxx>
  32 #include <TopoDS_Compound.hxx>
  33
  34 #include <AIS_ListOfInteractive.hxx>
  35 #include <AIS_ListIteratorOfListOfInteractive.hxx>
  36 #include <AIS_Shape.hxx>
  37 #include <AIS_Point.hxx>
  38 #include <AIS_Line.hxx>
  39 #include <AIS_Trihedron.hxx>
  40
  41 #include <Geom_Point.hxx>
  42 #include <Geom_BSplineCurve.hxx>
  43 #include <Geom_Line.hxx>
  44
  45 #include <TopExp_Explorer.hxx>
  46 #include <GeomAPI_ProjectPointOnCurve.hxx>
  47 #include <SelectMgr_EntityOwner.hxx>
  48
  49 #include <BRep_Tool.hxx>
  50 #include <BRep_Builder.hxx>
  51 #include <BRepBuilderAPI_MakeVertex.hxx>
  52 #include <BRepBuilderAPI_MakeEdge.hxx>
  53 #include <BRepBuilderAPI_MakeWire.hxx>
  54
  55 #include <TColgp_HArray1OfPnt.hxx>
  56 #include <GeomAPI_Interpolate.hxx>
  57
  58 #include <ProjLib.hxx>
  59 #include <ElSLib.hxx>
  60
  61 #include "CurveCreator_ICurve.hxx"
  62
  63 const double LOCAL_SELECTION_TOLERANCE = 0.0001;
  64 const int    SCENE_PIXEL_TOLERANCE = 10;
  65
  66 //=======================================================================
  67 // function : ConvertClickToPoint()
  68 // purpose  : Returns the point clicked in 3D view
  69 //=======================================================================
  70 void CurveCreator_Utils::ConvertPointToClick( const gp_Pnt& thePoint,
  71                                               Handle(V3d_View) theView,
  72                                               int& x, int& y )
  73 {
  74   theView->Convert(thePoint.X(), thePoint.Y(), thePoint.Z(), x, y );
  75 }
  76
  77
  78 //=======================================================================
  79 // function : ConvertClickToPoint()
  80 // purpose  : Returns the point clicked in 3D view
  81 //=======================================================================
  82 gp_Pnt CurveCreator_Utils::ConvertClickToPoint( int x, int y, Handle(V3d_View) aView )
  83 {
  84   return GEOMUtils::ConvertClickToPoint( x, y, aView );
  85 }
  86
  87
  88 //#define USE_COMPOUND
  89 #include "CurveCreator_Curve.hxx" // TODO - remove
  90 void CurveCreator_Utils::constructShape( const CurveCreator_ICurve* theCurve,
  91                                          const int theISection, TopoDS_Shape& theShape,
  92                                          std::vector<Handle_AIS_InteractiveObject>& aSectionRepresentation )
  93 {
  94   CurveCreator::SectionType aSectType = theCurve->getSectionType( theISection );
  95
  96
  97   int aPointSize = theCurve->getNbPoints( theISection );
  98   bool aSectIsClosed = theCurve->isClosed( theISection );
  99   if( aSectType == CurveCreator::Polyline )
 100   {
 101 #ifdef USE_COMPOUND
 102     BRep_Builder aBuilder;
 103     TopoDS_Compound aComp;
 104     aBuilder.MakeCompound(aComp);
 105
 106     int iPoint = 0;
 107     gp_Pnt aPrevPoint, aPoint;
 108     if ( aPointSize == 1 ) {
 109       CurveCreator_UtilsICurve::getPoint( theCurve, theISection, iPoint, aPrevPoint );
 110       TopoDS_Vertex aVertex = BRepBuilderAPI_MakeVertex( aPrevPoint ).Vertex();
 111       aBuilder.Add( aComp, aVertex );
 112     }
 113     else if ( aPointSize > 1 ) {
 114       TopoDS_Edge aPointEdge;
 115       TopoDS_Vertex aVertex;
 116       CurveCreator_UtilsICurve::getPoint( theCurve, theISection, iPoint, aPrevPoint );
 117       aVertex = BRepBuilderAPI_MakeVertex( aPrevPoint ).Vertex();
 118       aBuilder.Add( aComp, aVertex );
 119       iPoint++;
 120       for( ; iPoint < aPointSize; iPoint++ ) {
 121         CurveCreator_UtilsICurve::getPoint( theCurve, theISection, iPoint, aPoint );
 122         aVertex = BRepBuilderAPI_MakeVertex( aPoint ).Vertex();
 123         aBuilder.Add( aComp, aVertex );
 124         aPointEdge = BRepBuilderAPI_MakeEdge( aPrevPoint, aPoint ).Edge();
 125         aBuilder.Add( aComp, aPointEdge );
 126         aPrevPoint = aPoint;
 127       }
 128       if( aSectIsClosed && ( aPointSize > 2 ) ) {
 129         CurveCreator_UtilsICurve::getPoint( theCurve, theISection, 0, aPoint );
 130         aVertex = BRepBuilderAPI_MakeVertex( aPoint ).Vertex();
 131         aBuilder.Add( aComp, aVertex );
 132         aPointEdge = BRepBuilderAPI_MakeEdge( aPrevPoint, aPoint ).Edge();
 133         aBuilder.Add( aComp, aPointEdge );
 134       }
 135       theShape = aComp;
 136     }
 137 #endif
 138   }
 139   else if( aSectType == CurveCreator::Spline )
 140   {
 141     std::vector<double> aPoints;
 142     for( int iPoint = 0; iPoint < aPointSize; iPoint++ )
 143     {
 144       CurveCreator::Coordinates aCoords = theCurve->getPoint( theISection, iPoint );
 145       double aX = aCoords[0];
 146       double aY = aCoords[1];
 147       double aZ = aCoords[2];
 148       aPoints.push_back( aX );
 149       aPoints.push_back( aY );
 150     }
 151
 152     if( aPointSize > 1 )
 153     {
 154       Handle(Geom_BSplineCurve) aBSplineCurve;
 155       // fill array for algorithm by the received coordinates
 156       int aLen = aPoints.size() / 2;
 157       Handle(TColgp_HArray1OfPnt) aHCurvePoints = new TColgp_HArray1OfPnt (1, aLen);
 158       std::vector<double>::const_iterator aListIter = aPoints.begin();
 159       for (int ind = 1; ind <= aLen; ind++) {
 160         gp_Pnt aPnt(gp::Origin());
 161         aPnt.SetX(*aListIter);
 162         aListIter++;
 163         aPnt.SetY(*aListIter);
 164         aListIter++;
 165         aPnt.SetZ(0);
 166         aHCurvePoints->SetValue(ind, aPnt);
 167       }
 168       // compute BSpline
 169       GeomAPI_Interpolate aGBC(aHCurvePoints, aSectIsClosed, gp::Resolution());
 170       aGBC.Perform();
 171       if (aGBC.IsDone()) {
 172         aBSplineCurve = aGBC.Curve();
 173       }
 174       TopoDS_Edge anEdge = BRepBuilderAPI_MakeEdge( aBSplineCurve ).Edge();
 175
 176       TopoDS_Wire aWire = BRepBuilderAPI_MakeWire( anEdge ).Wire();
 177       theShape = aWire;
 178     }
 179   }
 180
 181   const CurveCreator_Curve* aCurve = dynamic_cast<const CurveCreator_Curve*>( theCurve );
 182   if ( !aCurve )
 183     return;
 184
 185   if( aSectType == CurveCreator::Polyline )
 186   {
 187 #ifndef USE_COMPOUND
 188     int iPoint = 0;
 189     for( ; iPoint < ( aPointSize - 1 ) ; iPoint++ ){
 190       Handle_AIS_Point anAISPnt = aCurve->getAISPoint(theISection, iPoint);
 191       aSectionRepresentation.push_back( anAISPnt );
 192       Handle_AIS_Line aLine = aCurve->getAISLine( theISection, iPoint, iPoint+1 );
 193       aSectionRepresentation.push_back( aLine );
 194     }
 195     if( aPointSize != 0 ){
 196       Handle_AIS_Point anAISPnt = aCurve->getAISPoint(theISection, iPoint);
 197       aSectionRepresentation.push_back( anAISPnt );
 198       if( aSectIsClosed && ( aPointSize > 1 ) ){
 199         Handle_AIS_Line aLine = aCurve->getAISLine( theISection, iPoint, 0 );
 200         aSectionRepresentation.push_back( aLine );
 201       }
 202     }
 203 #endif
 204   }
 205   else if( aSectType == CurveCreator::Spline )
 206   {
 207     std::vector<double> aPoints;
 208     for( int iPoint = 0; iPoint < aPointSize; iPoint++ )
 209     {
 210       Handle_AIS_Point anAISPnt = aCurve->getAISPoint( theISection, iPoint );
 211       aSectionRepresentation.push_back( anAISPnt );
 212     }
 213   }
 214 }
 215
 216 std::list<float> CurveCreator_Utils::getSelectedPoints( Handle(AIS_InteractiveContext) theContext )
 217 {
 218   std::list<float> aSelectedPoints;
 219
 220   gp_Pnt aPnt;
 221   for ( theContext->InitSelected(); theContext->MoreSelected(); theContext->NextSelected() ) {
 222     TopoDS_Vertex aVertex;
 223     TopoDS_Shape aShape = theContext->SelectedShape();
 224     if ( !aShape.IsNull() && aShape.ShapeType() == TopAbs_VERTEX )
 225       aVertex = TopoDS::Vertex( theContext->SelectedShape() );
 226     else {
 227       Handle(SelectMgr_EntityOwner) anOwner = theContext->SelectedOwner();
 228       if ( !anOwner.IsNull() ) {
 229         Handle(AIS_InteractiveObject) anAIS = Handle(AIS_InteractiveObject)::DownCast( anOwner->Selectable() );
 230         if ( !anAIS.IsNull() ) {
 231           Handle(AIS_Point) aPoint = Handle(AIS_Point)::DownCast( anAIS);
 232           if ( !aPoint.IsNull() )
 233             aVertex = TopoDS::Vertex( aPoint->Vertex() );
 234         }
 235         if ( aVertex.IsNull() ) {
 236           // the following happens if there are no points in the current curve, there is only a shape
 237           /*Handle(StdSelect_BRepOwner) aBrepOwner = Handle(StdSelect_BRepOwner)::DownCast(anOwner);
 238           if ( aBrepOwner.IsNull() )
 239             continue;
 240           if ( aBrepOwner->HasShape() ) {
 241             const TopoDS_Shape& aShape = aBrepOwner->Shape();
 242             if ( !aShape.IsNull() && aShape.ShapeType() == TopAbs_VERTEX )
 243             {
 244               aVertex = TopoDS::Vertex( aShape );
 245             }
 246           }*/
 247         }
 248       }
 249     }
 250     if ( aVertex.IsNull() )
 251       continue;
 252     aPnt = BRep_Tool::Pnt( aVertex );
 253     aSelectedPoints.push_back( aPnt.X() );
 254     aSelectedPoints.push_back( aPnt.Y() );
 255     aSelectedPoints.push_back( aPnt.Z() );
 256   }
 257
 258   return aSelectedPoints;
 259 }
 260 //=======================================================================
 261 // function : setLocalPointContext
 262 // purpose  : Open/close the viewer local context
 263 //=======================================================================
 264 //#define USE_GLOBAL_SELECTION
 265 void CurveCreator_Utils::setLocalPointContext(
 266                                               Handle(AIS_InteractiveContext) theContext,
 267                                               const bool theOpen )
 268 {
 269 #ifdef USE_GLOBAL_SELECTION
 270   return;
 271 #endif
 272   if ( !theContext )
 273     return;
 274
 275   if ( theOpen ) {
 276     // Open local context if there is no one
 277     if ( !theContext->HasOpenedContext() ) {
 278       theContext->ClearCurrents( false );
 279       theContext->OpenLocalContext( false/*use displayed objects*/, true/*allow shape decomposition*/ );
 280     }
 281     AIS_ListOfInteractive aList;
 282     theContext->DisplayedObjects( aList );
 283     int aLSize = 0;
 284     for ( AIS_ListIteratorOfListOfInteractive it( aList ); it.More(); it.Next() )
 285       aLSize++;
 286
 287     for ( AIS_ListIteratorOfListOfInteractive it( aList ); it.More(); it.Next() )
 288     {
 289       Handle(AIS_InteractiveObject) anAIS = it.Value();
 290       if ( !anAIS.IsNull() )
 291       {
 292         if ( anAIS->IsKind( STANDARD_TYPE( AIS_Shape ) ) )
 293         {
 294           theContext->Load( anAIS, -1/*selection mode*/, true/*allow decomposition*/ );
 295           //theContext->Activate( anAIS, AIS_Shape::SelectionMode( (TopAbs_ShapeEnum)TopAbs_WIRE ) );
 296           theContext->Activate( anAIS, AIS_Shape::SelectionMode( (TopAbs_ShapeEnum)TopAbs_VERTEX ) );
 297         }
 298         else if ( anAIS->DynamicType() != STANDARD_TYPE(AIS_Trihedron) )
 299         {
 300           theContext->Load( anAIS, -1/*selection mode*/, false/*allow decomposition*/ );
 301           theContext->Activate( anAIS, TopAbs_VERTEX );
 302         }
 303       }
 304       continue;
 305     }
 306   }
 307   else {
 308     if ( theContext->HasOpenedContext() )
 309       theContext->CloseAllContexts();
 310   }
 311 }
 312
 313 bool CurveCreator_Utils::getNeighbourPoints( Handle(AIS_InteractiveContext) theContext,
 314                                              Handle(V3d_View) theView,
 315                                              const int theX, const int theY,
 316                                              gp_Pnt& thePoint, gp_Pnt& thePoint1,
 317                                              gp_Pnt& thePoint2 )
 318 {
 319   bool isFoundPoint = false;
 320   if ( theContext.IsNull() )
 321     return isFoundPoint;
 322
 323   for ( theContext->InitSelected(); theContext->MoreSelected() && !isFoundPoint;
 324         theContext->NextSelected() ) {
 325     TopoDS_Shape aTShape = theContext->SelectedShape();
 326     if ( !aTShape.IsNull() && aTShape.ShapeType() == TopAbs_VERTEX )
 327       continue;
 328     else {
 329       Handle(SelectMgr_EntityOwner) anOwner = theContext->SelectedOwner();
 330       if ( anOwner.IsNull() )
 331         continue;
 332       const TopLoc_Location& aLocation = anOwner->Location();
 333       Handle(AIS_InteractiveObject) anAIS =
 334                         Handle(AIS_InteractiveObject)::DownCast( anOwner->Selectable() );
 335       isFoundPoint = CurveCreator_Utils::pointOnObject( theView, anAIS, theX, theY, thePoint,
 336                                                         thePoint1, thePoint2 );
 337     }
 338   }
 339   return isFoundPoint;
 340 }
 341
 342 bool CurveCreator_Utils::pointOnObject( Handle(V3d_View) theView,
 343                                         Handle(AIS_InteractiveObject) theObject,
 344                                         const int theX, const int theY,
 345                                         gp_Pnt& thePoint,
 346                                         gp_Pnt& thePoint1, gp_Pnt& thePoint2 )
 347 {
 348   bool isFound = false;
 349
 350   if ( theObject.IsNull() || theView.IsNull() )
 351     return isFound;
 352
 353   gp_Pnt aPoint;
 354   Standard_Real aParameter;
 355   gp_Pnt aPnt1, aPnt2;
 356   Handle(AIS_Line) aLine = Handle(AIS_Line)::DownCast( theObject );
 357   if ( !aLine.IsNull() ) {
 358     const Handle(Geom_Line) aGLine = aLine->Line();
 359     isFound = hasProjectPointOnCurve( theView, theX, theY, aGLine, aParameter );
 360     if ( isFound ) {
 361       aPoint = aGLine->Value( aParameter );
 362
 363       Handle(Geom_Point) aPStart;
 364       Handle(Geom_Point) aPEnd;
 365       aLine->Points( aPStart, aPEnd );
 366       aPnt1 = aPStart->Pnt();
 367       aPnt2 = aPEnd->Pnt();
 368
 369       // in case of Geom line a projection is performed to the infinite line,
 370       // so it is necessary to bound it by the line size
 371       Bnd_Box aLineBox;
 372       aLineBox.Set( aPnt1, gp_Vec( aPnt1, aPnt2 ) );
 373       isFound = !aLineBox.IsOut( aPoint );
 374     }
 375   }
 376   else {
 377     Handle(AIS_Shape) aShape = Handle(AIS_Shape)::DownCast( theObject );
 378     if ( !aShape.IsNull() ) {
 379       const TopoDS_Wire& aWire = TopoDS::Wire( aShape->Shape() );
 380       if ( !aWire.IsNull() ) {
 381         TopExp_Explorer anExp( aWire, TopAbs_EDGE );
 382         for ( ; anExp.More(); anExp.Next())
 383         {
 384           const TopoDS_Edge& anEdge = TopoDS::Edge(anExp.Current());
 385           if ( !anEdge.IsNull() ) {
 386             Standard_Real aFirst, aLast;
 387             Handle(Geom_Curve) aCurve = BRep_Tool::Curve( anEdge, aFirst, aLast );
 388
 389             if ( aCurve->IsKind( STANDARD_TYPE(Geom_BSplineCurve) ) ) {
 390               Handle(Geom_BSplineCurve) aBSplineCurve = Handle(Geom_BSplineCurve)::DownCast( aCurve );
 391               if ( !aBSplineCurve.IsNull() ) {
 392                 isFound = hasProjectPointOnCurve( theView, theX, theY, aCurve, aParameter );
 393                 if ( isFound ) {
 394                   aPoint = aBSplineCurve->Value( aParameter );
 395                   Standard_Integer anI1, anI2;
 396                   aBSplineCurve->LocateU( aParameter, LOCAL_SELECTION_TOLERANCE, anI1, anI2 );
 397
 398                   aPnt1 = aBSplineCurve->Value( aBSplineCurve->Knot( anI1 ) );
 399                   aPnt2 = aBSplineCurve->Value( aBSplineCurve->Knot( anI2 ) );
 400                 }
 401               }
 402             }
 403           }
 404         }
 405       }
 406     }
 407   }
 408   if ( isFound ) {
 409     thePoint = aPoint;
 410     thePoint1 = aPnt1;
 411     thePoint2 = aPnt2;
 412   }
 413   return isFound;
 414 }
 415
 416 bool CurveCreator_Utils::hasProjectPointOnCurve( Handle(V3d_View) theView,
 417                                                  const int theX, const int theY,
 418                                                  const Handle(Geom_Curve)& theCurve,
 419                                                  Standard_Real& theParameter )
 420 {
 421   bool isFound = false;
 422   if ( theView.IsNull() )
 423     return isFound;
 424
 425   gp_Pnt aPoint = CurveCreator_Utils::ConvertClickToPoint( theX, theY, theView );
 426
 427   GeomAPI_ProjectPointOnCurve aProj( aPoint, theCurve );
 428   Standard_Integer aNbPoint = aProj.NbPoints();
 429   if (aNbPoint > 0) {
 430     for (Standard_Integer j = 1; j <= aNbPoint && !isFound; j++) {
 431       gp_Pnt aNewPoint = aProj.Point( j );
 432       theParameter = aProj.Parameter( j );
 433
 434       int aX, anY;
 435       CurveCreator_Utils::ConvertPointToClick( aNewPoint, theView, aX, anY );
 436
 437       int aXDelta = abs( aX - theX );
 438       int anYDelta = abs( anY - theY );
 439       isFound = aXDelta < SCENE_PIXEL_TOLERANCE && anYDelta < SCENE_PIXEL_TOLERANCE;
 440     }
 441   }
 442   return isFound;
 443 }