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 void CurveCreator_Utils::constructShape( const CurveCreator_ICurve* theCurve,
  88                                          TopoDS_Shape& theShape )
  89 {
  90   BRep_Builder aBuilder;
  91   TopoDS_Compound aComp;
  92   aBuilder.MakeCompound( aComp );
  93   for( int iSection = 0 ; iSection < theCurve->getNbSections() ; iSection++ )
  94   {
  95     int theISection = iSection;
  96
  97     CurveCreator::SectionType aSectType = theCurve->getSectionType( theISection );
  98     int aPointSize = theCurve->getNbPoints( theISection );
  99     bool aSectIsClosed = theCurve->isClosed( theISection );
 100     bool isPolyline = aSectType == CurveCreator::Polyline;
 101     int iPoint = 0;
 102     gp_Pnt aPrevPoint, aPoint;
 103     if ( aPointSize == 1 ) {
 104       CurveCreator_UtilsICurve::getPoint( theCurve, theISection, iPoint, aPoint );
 105       TopoDS_Vertex aVertex = BRepBuilderAPI_MakeVertex( aPoint ).Vertex();
 106       aBuilder.Add( aComp, aVertex );
 107     }
 108     else if ( aPointSize > 1 ) {
 109       Handle(TColgp_HArray1OfPnt) aHCurvePoints = new TColgp_HArray1OfPnt (1, aPointSize);
 110       int aHIndex = 1;
 111
 112       TopoDS_Edge aPointEdge;
 113       TopoDS_Vertex aVertex;
 114       CurveCreator_UtilsICurve::getPoint( theCurve, theISection, iPoint, aPoint );
 115       aVertex = BRepBuilderAPI_MakeVertex( aPoint ).Vertex();
 116       aBuilder.Add( aComp, aVertex );
 117       aHCurvePoints->SetValue(aHIndex++, aPoint);
 118       aPrevPoint = aPoint;
 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         aHCurvePoints->SetValue(aHIndex++, aPoint);
 125         if ( isPolyline ) {
 126           aPointEdge = BRepBuilderAPI_MakeEdge( aPrevPoint, aPoint ).Edge();
 127           aBuilder.Add( aComp, aPointEdge );
 128         }
 129         aPrevPoint = aPoint;
 130       }
 131       if( aSectIsClosed && ( aPointSize > 2 ) ) {
 132         CurveCreator_UtilsICurve::getPoint( theCurve, theISection, 0, aPoint );
 133         aVertex = BRepBuilderAPI_MakeVertex( aPoint ).Vertex();
 134         aBuilder.Add( aComp, aVertex );
 135         if ( isPolyline ) {
 136           aPointEdge = BRepBuilderAPI_MakeEdge( aPrevPoint, aPoint ).Edge();
 137           aBuilder.Add( aComp, aPointEdge );
 138         }
 139       }
 140       if( !isPolyline ) {
 141         // compute BSpline
 142         Handle(Geom_BSplineCurve) aBSplineCurve;
 143         GeomAPI_Interpolate aGBC(aHCurvePoints, aSectIsClosed, gp::Resolution());
 144         aGBC.Perform();
 145         if ( aGBC.IsDone() )
 146           aBSplineCurve = aGBC.Curve();
 147         TopoDS_Edge anEdge = BRepBuilderAPI_MakeEdge( aBSplineCurve ).Edge();
 148         TopoDS_Wire aWire = BRepBuilderAPI_MakeWire( anEdge ).Wire();
 149         aBuilder.Add( aComp, aWire );
 150       }
 151     }
 152   }
 153   theShape = aComp;
 154 }
 155
 156 class ComparePnt
 157 {
 158 public:
 159   ComparePnt( const gp_Pnt& thePoint ) : myPoint( thePoint) {};
 160   ~ComparePnt() {}
 161
 162   bool operator < ( const ComparePnt& theOtherPoint ) const
 163   {
 164     bool isLess = myPoint.X() < theOtherPoint.myPoint.X();
 165     if ( !isLess && myPoint.X() == theOtherPoint.myPoint.X() ) {
 166       isLess = myPoint.Y() < theOtherPoint.myPoint.Y();
 167       if ( !isLess && myPoint.Y() == theOtherPoint.myPoint.Y() )
 168         isLess = myPoint.Z() < theOtherPoint.myPoint.Z();
 169     }
 170     return isLess;
 171   }
 172 private:
 173   gp_Pnt myPoint;
 174 };
 175
 176 void CurveCreator_Utils::getSelectedPoints( Handle(AIS_InteractiveContext) theContext,
 177                                             const CurveCreator_ICurve* theCurve,
 178                                             CurveCreator_ICurve::SectionToPointList& thePoints )
 179 {
 180   thePoints.clear();
 181
 182   std::list<float> aSelectedPoints;
 183   gp_Pnt aPnt;
 184   std::map<ComparePnt, int> aPntMap;
 185
 186   CurveCreator_ICurve::SectionToPointList aPoints;
 187   for ( theContext->InitSelected(); theContext->MoreSelected(); theContext->NextSelected() ) {
 188     TopoDS_Vertex aVertex;
 189     TopoDS_Shape aShape = theContext->SelectedShape();
 190     if ( !aShape.IsNull() && aShape.ShapeType() == TopAbs_VERTEX )
 191       aVertex = TopoDS::Vertex( theContext->SelectedShape() );
 192
 193     if ( aVertex.IsNull() )
 194       continue;
 195     aPnt = BRep_Tool::Pnt( aVertex );
 196     if ( aPntMap.find( aPnt ) != aPntMap.end() )
 197       continue;
 198     aPntMap[aPnt] = 0;
 199
 200     CurveCreator_UtilsICurve::findSectionsToPoints( theCurve, aPnt.X(), aPnt.Y(), aPoints );
 201     CurveCreator_ICurve::SectionToPointList::const_iterator anIt = aPoints.begin(),
 202                                                             aLast = aPoints.end();
 203     for ( ; anIt != aLast; anIt++ )
 204       thePoints.push_back( *anIt );
 205   }
 206 }
 207
 208 //=======================================================================
 209 // function : setLocalPointContext
 210 // purpose  : Open/close the viewer local context
 211 //=======================================================================
 212 //#define USE_GLOBAL_SELECTION
 213 void CurveCreator_Utils::setLocalPointContext(
 214                                               Handle(AIS_InteractiveContext) theContext,
 215                                               const bool theOpen )
 216 {
 217 #ifdef USE_GLOBAL_SELECTION
 218   return;
 219 #endif
 220   if ( !theContext )
 221     return;
 222
 223   if ( theOpen ) {
 224     // Open local context if there is no one
 225     if ( !theContext->HasOpenedContext() ) {
 226       theContext->ClearCurrents( false );
 227       theContext->OpenLocalContext( false/*use displayed objects*/, true/*allow shape decomposition*/ );
 228     }
 229     AIS_ListOfInteractive aList;
 230     theContext->DisplayedObjects( aList );
 231     int aLSize = 0;
 232     for ( AIS_ListIteratorOfListOfInteractive it( aList ); it.More(); it.Next() )
 233       aLSize++;
 234
 235     for ( AIS_ListIteratorOfListOfInteractive it( aList ); it.More(); it.Next() )
 236     {
 237       Handle(AIS_InteractiveObject) anAIS = it.Value();
 238       if ( !anAIS.IsNull() )
 239       {
 240         if ( anAIS->IsKind( STANDARD_TYPE( AIS_Shape ) ) )
 241         {
 242           theContext->Load( anAIS, -1/*selection mode*/, true/*allow decomposition*/ );
 243           //theContext->Activate( anAIS, AIS_Shape::SelectionMode( (TopAbs_ShapeEnum)TopAbs_WIRE ) );
 244           theContext->Activate( anAIS, AIS_Shape::SelectionMode( (TopAbs_ShapeEnum)TopAbs_VERTEX ) );
 245         }
 246         else if ( anAIS->DynamicType() != STANDARD_TYPE(AIS_Trihedron) )
 247         {
 248           theContext->Load( anAIS, -1/*selection mode*/, false/*allow decomposition*/ );
 249           theContext->Activate( anAIS, TopAbs_VERTEX );
 250         }
 251       }
 252       continue;
 253     }
 254   }
 255   else {
 256     if ( theContext->HasOpenedContext() )
 257       theContext->CloseAllContexts();
 258   }
 259 }
 260
 261 bool CurveCreator_Utils::getNeighbourPoints( Handle(AIS_InteractiveContext) theContext,
 262                                              Handle(V3d_View) theView,
 263                                              const int theX, const int theY,
 264                                              gp_Pnt& thePoint, gp_Pnt& thePoint1,
 265                                              gp_Pnt& thePoint2 )
 266 {
 267   bool isFoundPoint = false;
 268   if ( theContext.IsNull() )
 269     return isFoundPoint;
 270
 271   for ( theContext->InitSelected(); theContext->MoreSelected() && !isFoundPoint;
 272         theContext->NextSelected() ) {
 273     TopoDS_Shape aTShape = theContext->SelectedShape();
 274     if ( !aTShape.IsNull() && aTShape.ShapeType() == TopAbs_VERTEX )
 275       continue;
 276     else {
 277       Handle(SelectMgr_EntityOwner) anOwner = theContext->SelectedOwner();
 278       if ( anOwner.IsNull() )
 279         continue;
 280       const TopLoc_Location& aLocation = anOwner->Location();
 281       Handle(AIS_InteractiveObject) anAIS =
 282                         Handle(AIS_InteractiveObject)::DownCast( anOwner->Selectable() );
 283       isFoundPoint = CurveCreator_Utils::pointOnObject( theView, anAIS, theX, theY, thePoint,
 284                                                         thePoint1, thePoint2 );
 285     }
 286   }
 287   return isFoundPoint;
 288 }
 289
 290 bool CurveCreator_Utils::pointOnObject( Handle(V3d_View) theView,
 291                                         Handle(AIS_InteractiveObject) theObject,
 292                                         const int theX, const int theY,
 293                                         gp_Pnt& thePoint,
 294                                         gp_Pnt& thePoint1, gp_Pnt& thePoint2 )
 295 {
 296   bool isFound = false;
 297
 298   if ( theObject.IsNull() || theView.IsNull() )
 299     return isFound;
 300
 301   gp_Pnt aPoint;
 302   Standard_Real aParameter;
 303   gp_Pnt aPnt1, aPnt2;
 304   Handle(AIS_Line) aLine = Handle(AIS_Line)::DownCast( theObject );
 305   if ( !aLine.IsNull() ) {
 306     const Handle(Geom_Line) aGLine = aLine->Line();
 307     isFound = hasProjectPointOnCurve( theView, theX, theY, aGLine, aParameter );
 308     if ( isFound ) {
 309       aPoint = aGLine->Value( aParameter );
 310
 311       Handle(Geom_Point) aPStart;
 312       Handle(Geom_Point) aPEnd;
 313       aLine->Points( aPStart, aPEnd );
 314       aPnt1 = aPStart->Pnt();
 315       aPnt2 = aPEnd->Pnt();
 316
 317       // in case of Geom line a projection is performed to the infinite line,
 318       // so it is necessary to bound it by the line size
 319       Bnd_Box aLineBox;
 320       aLineBox.Set( aPnt1, gp_Vec( aPnt1, aPnt2 ) );
 321       isFound = !aLineBox.IsOut( aPoint );
 322     }
 323   }
 324   else {
 325     Handle(AIS_Shape) aShape = Handle(AIS_Shape)::DownCast( theObject );
 326     if ( !aShape.IsNull() ) {
 327       const TopoDS_Wire& aWire = TopoDS::Wire( aShape->Shape() );
 328       if ( !aWire.IsNull() ) {
 329         TopExp_Explorer anExp( aWire, TopAbs_EDGE );
 330         for ( ; anExp.More(); anExp.Next())
 331         {
 332           const TopoDS_Edge& anEdge = TopoDS::Edge(anExp.Current());
 333           if ( !anEdge.IsNull() ) {
 334             Standard_Real aFirst, aLast;
 335             Handle(Geom_Curve) aCurve = BRep_Tool::Curve( anEdge, aFirst, aLast );
 336
 337             if ( aCurve->IsKind( STANDARD_TYPE(Geom_BSplineCurve) ) ) {
 338               Handle(Geom_BSplineCurve) aBSplineCurve = Handle(Geom_BSplineCurve)::DownCast( aCurve );
 339               if ( !aBSplineCurve.IsNull() ) {
 340                 isFound = hasProjectPointOnCurve( theView, theX, theY, aCurve, aParameter );
 341                 if ( isFound ) {
 342                   aPoint = aBSplineCurve->Value( aParameter );
 343                   Standard_Integer anI1, anI2;
 344                   aBSplineCurve->LocateU( aParameter, LOCAL_SELECTION_TOLERANCE, anI1, anI2 );
 345
 346                   aPnt1 = aBSplineCurve->Value( aBSplineCurve->Knot( anI1 ) );
 347                   aPnt2 = aBSplineCurve->Value( aBSplineCurve->Knot( anI2 ) );
 348                 }
 349               }
 350             }
 351           }
 352         }
 353       }
 354     }
 355   }
 356   if ( isFound ) {
 357     thePoint = aPoint;
 358     thePoint1 = aPnt1;
 359     thePoint2 = aPnt2;
 360   }
 361   return isFound;
 362 }
 363
 364 bool CurveCreator_Utils::hasProjectPointOnCurve( Handle(V3d_View) theView,
 365                                                  const int theX, const int theY,
 366                                                  const Handle(Geom_Curve)& theCurve,
 367                                                  Standard_Real& theParameter )
 368 {
 369   bool isFound = false;
 370   if ( theView.IsNull() )
 371     return isFound;
 372
 373   gp_Pnt aPoint = CurveCreator_Utils::ConvertClickToPoint( theX, theY, theView );
 374
 375   GeomAPI_ProjectPointOnCurve aProj( aPoint, theCurve );
 376   Standard_Integer aNbPoint = aProj.NbPoints();
 377   if (aNbPoint > 0) {
 378     for (Standard_Integer j = 1; j <= aNbPoint && !isFound; j++) {
 379       gp_Pnt aNewPoint = aProj.Point( j );
 380       theParameter = aProj.Parameter( j );
 381
 382       int aX, anY;
 383       CurveCreator_Utils::ConvertPointToClick( aNewPoint, theView, aX, anY );
 384
 385       int aXDelta = abs( aX - theX );
 386       int anYDelta = abs( anY - theY );
 387       isFound = aXDelta < SCENE_PIXEL_TOLERANCE && anYDelta < SCENE_PIXEL_TOLERANCE;
 388     }
 389   }
 390   return isFound;
 391 }