src/HYDROData/HYDROData_PolylineOperator.cxx

   1 // Copyright (C) 2014-2015  EDF-R&D
   2 // This library is free software; you can redistribute it and/or
   3 // modify it under the terms of the GNU Lesser General Public
   4 // License as published by the Free Software Foundation; either
   5 // version 2.1 of the License, or (at your option) any later version.
   6 //
   7 // This library is distributed in the hope that it will be useful,
   8 // but WITHOUT ANY WARRANTY; without even the implied warranty of
   9 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  10 // Lesser General Public License for more details.
  11 //
  12 // You should have received a copy of the GNU Lesser General Public
  13 // License along with this library; if not, write to the Free Software
  14 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  15 //
  16 // See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
  17 //
  18
  19 #include <HYDROData_PolylineOperator.h>
  20 #include <HYDROData_Document.h>
  21 #include <HYDROData_TopoCurve.h>
  22 #include <HYDROData_Object.h>
  23
  24 #ifndef LIGHT_MODE
  25 #include <CurveCreator_Utils.hxx>
  26 #endif
  27
  28 #include <BRepAdaptor_Curve.hxx>
  29 #include <BRep_Builder.hxx>
  30 #include <BRep_Tool.hxx>
  31 #include <BRepBuilderAPI_MakeEdge2d.hxx>
  32 #include <BRepBuilderAPI_MakeEdge.hxx>
  33 #include <BRepBuilderAPI_MakeWire.hxx>
  34 #include <Extrema_ExtCC.hxx>
  35 #include <Extrema_ExtPC.hxx>
  36 #include <GeomAPI_Interpolate.hxx>
  37 #include <NCollection_Vector.hxx>
  38 #include <Precision.hxx>
  39 #include <ShapeAnalysis_TransferParametersProj.hxx>
  40 #include <ShapeBuild_Edge.hxx>
  41 #include <TColgp_Array1OfVec.hxx>
  42 #include <TColgp_HArray1OfPnt.hxx>
  43 #include <TColStd_HArray1OfBoolean.hxx>
  44 #include <TopoDS.hxx>
  45 #include <TopoDS_Edge.hxx>
  46 #include <TopoDS_Wire.hxx>
  47 #include <TopExp.hxx>
  48 #include <TopExp_Explorer.hxx>
  49 #include <TopTools_IndexedDataMapOfShapeListOfShape.hxx>
  50 #include <QStringList>
  51 #include <QColor>
  52 #include <Geom_BSplineCurve.hxx>
  53
  54 template<class T> void append( std::vector<T>& theList, const std::vector<T>& theList2 )
  55 {
  56   int aSize = theList.size();
  57   int aNewSize = aSize + theList2.size();
  58
  59   if( aSize==aNewSize )
  60     return;
  61
  62   theList.resize( aNewSize );
  63   for( int i=aSize, j=0; i<aNewSize; i++, j++ )
  64     theList[i] = theList2[j];
  65 }
  66
  67 bool HYDROData_PolylineOperator::Split( const Handle( HYDROData_Document )& theDoc,
  68                                         const Handle( HYDROData_PolylineXY )& thePolyline,
  69                                         const gp_Pnt2d& thePoint,
  70                                         double theTolerance ) const
  71 {
  72   if (thePolyline.IsNull())
  73   {
  74     return false;
  75   }
  76
  77   std::vector<gp_Pnt2d> aPointsList( 1 );
  78   aPointsList[0] = thePoint;
  79   std::vector<TopoDS_Wire> aCurves;
  80   GetWires(thePolyline, aCurves);
  81   bool isOK = true;
  82   for( int i=0, n=aCurves.size(); i<n; i++ )
  83   {
  84     std::vector<TopoDS_Shape> aCurvesList;
  85     Split( aCurves[i], thePoint, theTolerance, aCurvesList );
  86     bool isLocalOK = CreatePolylines( theDoc, thePolyline->GetName(),
  87       aCurvesList, true, thePolyline->GetWireColor() );
  88     isOK = isOK && isLocalOK;
  89   }
  90   return isOK;
  91 }
  92
  93 bool HYDROData_PolylineOperator::Split( const Handle( HYDROData_Document )& theDoc,
  94               const Handle( HYDROData_PolylineXY )& thePolyline,
  95               const Handle( HYDROData_PolylineXY )& theTool,
  96               double theTolerance,
  97               bool& theIsIntersected) const
  98 {
  99   if (thePolyline.IsNull() || theTool.IsNull())
 100   {
 101     return false;
 102   }
 103
 104   HYDROData_SequenceOfObjects aSeq;
 105   aSeq.Append( theTool );
 106   return split( theDoc, thePolyline, aSeq, theTolerance, -1, theIsIntersected);
 107 }
 108
 109 bool HYDROData_PolylineOperator::Split( const Handle( HYDROData_Document )& theDoc,
 110                                         const HYDROData_SequenceOfObjects& thePolylines,
 111                                         double theTolerance )
 112 {
 113   int f = thePolylines.Lower(), l = thePolylines.Upper();
 114   for( int i=f; i<=l; i++ )
 115   {
 116     Handle( HYDROData_PolylineXY ) aPolyline = Handle( HYDROData_PolylineXY )::DownCast( thePolylines.Value( i ) );
 117     bool isIntersected;
 118     if( !split( theDoc, aPolyline, thePolylines, theTolerance, i, isIntersected) )
 119       return false;
 120   }
 121   return true;
 122 }
 123
 124 bool HYDROData_PolylineOperator::Merge( const Handle( HYDROData_Document )& theDoc,
 125                                         const QString& theName,
 126                                         const HYDROData_SequenceOfObjects& thePolylines,
 127                                         bool isConnectByNewSegment,
 128                                         double theTolerance )
 129 {
 130   std::deque<HYDROData_TopoCurve> aMergedCurves;
 131   HYDROData_SequenceOfObjects::Iterator aPIt(thePolylines);
 132   for (; aPIt.More(); aPIt.Next())
 133   {
 134     Handle(HYDROData_PolylineXY) aPolyline =
 135       Handle(HYDROData_PolylineXY)::DownCast(aPIt.Value());
 136     std::vector<TopoDS_Wire> aWires;
 137     GetWires(aPolyline, aWires);
 138     for (std::vector<TopoDS_Wire>::const_iterator aWIt = aWires.begin(),
 139       aLastWIt = aWires.end(); aWIt != aLastWIt; ++aWIt)
 140     {
 141       const Standard_Boolean aResult = !isConnectByNewSegment ?
 142         HYDROData_TopoCurve::Merge(theTolerance, *aWIt, aMergedCurves) :
 143         HYDROData_TopoCurve::Connect(theTolerance, *aWIt, aMergedCurves);
 144       if (!aResult)
 145       {
 146         return false;
 147       }
 148     }
 149   }
 150
 151   TopoDS_Compound aWireSet;
 152   BRep_Builder aBuilder;
 153   aBuilder.MakeCompound(aWireSet);
 154   std::deque<HYDROData_TopoCurve>::iterator aCIt = aMergedCurves.begin();
 155   std::deque<HYDROData_TopoCurve>::iterator aLastCIt = aMergedCurves.end();
 156   for (; aCIt != aLastCIt; ++aCIt)
 157   {
 158     if (!aCIt->IsEmpty())
 159     {
 160       aBuilder.Add(aWireSet, aCIt->Wire());
 161     }
 162   }
 163
 164   std::vector<TopoDS_Shape> aPolylines(1);
 165   aPolylines[0] = aWireSet;
 166   CreatePolylines( theDoc, theName, aPolylines, false, QColor() );
 167   return true;
 168 }
 169
 170 bool HYDROData_PolylineOperator::split( const Handle( HYDROData_Document )& theDoc,
 171                                         const Handle( HYDROData_PolylineXY )& thePolyline,
 172                                         const HYDROData_SequenceOfObjects& theTools,
 173                                         double theTolerance,
 174                                         int theIgnoreIndex,
 175                                         bool& theIsIntersected) const
 176 {
 177   theIsIntersected = false;
 178
 179   if (thePolyline.IsNull())
 180   {
 181     return false;
 182   }
 183
 184   std::vector<TopoDS_Wire> aCurves;
 185   GetWires(thePolyline, aCurves);
 186   std::vector<TopoDS_Wire> aToolCurves;
 187   for( int i=theTools.Lower(), n=theTools.Upper(); i<=n; i++ )
 188     if( i!=theIgnoreIndex )
 189     {
 190       Handle( HYDROData_PolylineXY ) aToolPolyline =
 191         Handle( HYDROData_PolylineXY )::DownCast( theTools.Value( i ) );
 192       if (!aToolPolyline.IsNull())
 193       {
 194         std::vector<TopoDS_Wire> aTCurves;
 195         GetWires(aToolPolyline, aTCurves);
 196         append( aToolCurves, aTCurves);
 197       }
 198     }
 199
 200   if (aToolCurves.empty())
 201   {
 202     return false;
 203   }
 204
 205   const int aPSCount = aCurves.size();
 206   const int aTSCount = aToolCurves.size();
 207   std::vector<TopoDS_Shape> aResult;
 208   for (int aPSI = 0; aPSI < aPSCount; ++aPSI)
 209   {
 210     HYDROData_TopoCurve aCurve;
 211     if (!aCurve.Initialize(aCurves[aPSI]))
 212     {
 213       continue;
 214     }
 215
 216     std::deque<std::list<double> > aParams;
 217     for (int aTSI = 0; aTSI < aTSCount; ++aTSI)
 218     {
 219       aCurve.Intersect(aToolCurves[aTSI], aParams);
 220     }
 221
 222     std::deque<HYDROData_TopoCurve> aSplittedCurves;
 223     theIsIntersected |= aCurve.Cut(aParams, aSplittedCurves);
 224     std::deque<HYDROData_TopoCurve>::const_iterator aCIt =
 225       aSplittedCurves.begin();
 226     std::deque<HYDROData_TopoCurve>::const_iterator aLastCIt =
 227       aSplittedCurves.end();
 228     for (; aCIt != aLastCIt; ++aCIt)
 229     {
 230       aResult.push_back(aCIt->Wire());
 231     }
 232   }
 233
 234   CreatePolylines( theDoc, thePolyline->GetName(), aResult, true, thePolyline->GetWireColor() );
 235   return true;
 236 }
 237
 238 void HYDROData_PolylineOperator::GetWires(
 239   const Handle( HYDROData_PolylineXY )& thePolyline,
 240   std::vector<TopoDS_Wire>& theWires)
 241 {
 242   TopoDS_Shape aShape = thePolyline->GetShape();
 243   if( aShape.ShapeType()==TopAbs_WIRE )
 244   {
 245     theWires.push_back( TopoDS::Wire( aShape ) );
 246   }
 247   else
 248   {
 249     TopExp_Explorer anExp( aShape, TopAbs_WIRE );
 250     for( ; anExp.More(); anExp.Next() )
 251     {
 252       theWires.push_back( TopoDS::Wire( anExp.Current() ) );
 253     }
 254   }
 255 }
 256
 257 void HYDROData_PolylineOperator::Split(
 258   const TopoDS_Wire& theWire,
 259   const gp_Pnt2d& thePoint,
 260   double theTolerance,
 261   std::vector<TopoDS_Shape>& theWires)
 262 {
 263   HYDROData_TopoCurve aCurve;
 264   if (!aCurve.Initialize(theWire))
 265   {
 266     theWires.push_back(theWire);
 267     return;
 268   }
 269
 270   const gp_XYZ aP(thePoint.X(), thePoint.Y(), 0);
 271   std::list<TopoDS_Edge>::const_iterator aEPos;
 272   double aParam;
 273   aCurve.Project(aP, aEPos, aParam);
 274   HYDROData_TopoCurve aCurve1, aCurve2;
 275   aCurve.Cut(aEPos, aParam, aCurve1, aCurve2);
 276   theWires.push_back(aCurve1.Wire());
 277   if (!aCurve2.IsEmpty())
 278   {
 279     theWires.push_back(aCurve2.Wire());
 280   }
 281 }
 282
 283 bool HYDROData_PolylineOperator::CreatePolylines( const Handle( HYDROData_Document )& theDoc,
 284                                                   const QString& theNamePrefix,
 285                                                   const std::vector<TopoDS_Shape>& theShapes,
 286                                                   bool isUseIndices,
 287                                                   const QColor& theColor )
 288 {
 289   if( theDoc.IsNull() )
 290     return false;
 291
 292   int n = theShapes.size();
 293   int anIndex = 1;
 294   for( int i=0; i<n; i++ )
 295   {
 296     Handle( HYDROData_PolylineXY ) aPolyline =
 297       Handle( HYDROData_PolylineXY )::DownCast( theDoc->CreateObject( KIND_POLYLINEXY ) );
 298     if( aPolyline.IsNull() )
 299       return false;
 300
 301     aPolyline->SetShape( theShapes[i] );
 302
 303     if( isUseIndices )
 304     {
 305       QString aNewName = theNamePrefix + "_" + QString::number( anIndex );
 306       if( theDoc->FindObjectByName( aNewName ).IsNull() )  // the object with such a name is not found
 307         aPolyline->SetName( aNewName );
 308       anIndex++;
 309     }
 310     else
 311     {
 312       aPolyline->SetName( theNamePrefix );
 313     }
 314
 315     if( theColor.isValid() )
 316       aPolyline->SetWireColor( theColor );
 317   }
 318   return true;
 319 }
 320
 321 double HYDROData_PolylineOperator::ReduceDeflection(
 322   const double theDeflection,
 323   HYDROData_TopoCurve& theCurve,
 324   int& thePieceCount)
 325 {
 326   // Construct the approximating B-spline.
 327   std::list<gp_XYZ> aPs;
 328   if (!theCurve.ValuesInKnots(aPs))
 329   {
 330     return -1;
 331   }
 332
 333   Handle(TColgp_HArray1OfPnt) aPs2 = new TColgp_HArray1OfPnt(1, aPs.size());
 334   {
 335     std::list<gp_XYZ>::const_iterator aLastPIt = aPs.end();
 336     std::list<gp_XYZ>::const_iterator aPIt = aPs.begin();
 337     for (int aPN = 1; aPIt != aLastPIt; ++aPN, ++aPIt)
 338     {
 339       aPs2->SetValue(aPN, *aPIt);
 340     }
 341   }
 342   Handle(Geom_BSplineCurve) aBSpline2;
 343   const bool isClosed = theCurve.IsClosed();
 344 #ifndef LIGHT_MODE
 345   if (!CurveCreator_Utils::constructBSpline(aPs2, isClosed, aBSpline2))
 346 #endif
 347   {
 348     return -1;
 349   }
 350
 351   // Calculate the piece deflections.
 352   std::deque<double> aSqDefls;
 353   double aMaxSqDefl = 0;
 354   std::list<TopoDS_Edge>& aEdges = theCurve.Edges();
 355   std::list<TopoDS_Edge>::const_iterator aLastEIt = aEdges.end();
 356   {
 357     std::list<TopoDS_Edge>::const_iterator aEIt = aEdges.begin();
 358     for (int aPrevKCount = 0; aEIt != aLastEIt; ++aEIt)
 359     {
 360       TopLoc_Location aLoc;
 361       double aParams[2];
 362       Handle(Geom_BSplineCurve) aBSpline = Handle(Geom_BSplineCurve)::DownCast(
 363         BRep_Tool::Curve(*aEIt, aLoc, aParams[0], aParams[1]));
 364       const int aKCount = aBSpline->NbKnots();
 365       for (int aKN = 1; aKN < aKCount; ++aKN)
 366       {
 367         const double aParam =
 368           (aBSpline->Knot(aKN) + aBSpline->Knot(aKN + 1)) * 0.5;
 369         const double aParam2 = (aBSpline2->Knot(aPrevKCount + aKN) +
 370           aBSpline2->Knot(aPrevKCount + aKN + 1)) * 0.5;
 371         const double aSqDefl = Abs(aBSpline->Value(aParam).
 372           SquareDistance(aBSpline2->Value(aParam2)));
 373         aSqDefls.push_back(aSqDefl);
 374         if (aMaxSqDefl < aSqDefl)
 375         {
 376           aMaxSqDefl = aSqDefl;
 377         }
 378       }
 379       aPrevKCount += aKCount - 1;
 380     }
 381   }
 382
 383   // Check whether the reducing is necessary.
 384   const double aMaxDefl = Sqrt(aMaxSqDefl);
 385   if (aMaxDefl <= theDeflection)
 386   {
 387     return aMaxDefl;
 388   }
 389
 390   // Reduce the deflections.
 391   const double aThresSqDefl =
 392     Max(aMaxSqDefl * 0.25, theDeflection * theDeflection);
 393   std::list<TopoDS_Edge>::iterator aEIt = aEdges.begin();
 394   std::deque<double>::const_iterator aSqDIt = aSqDefls.begin();
 395   thePieceCount = 0;
 396   for (; aEIt != aLastEIt; ++aEIt)
 397   {
 398     TopLoc_Location aLoc;
 399     double aParams[2];
 400     Handle(Geom_BSplineCurve) aBSpline = Handle(Geom_BSplineCurve)::DownCast(
 401       BRep_Tool::Curve(*aEIt, aLoc, aParams[0], aParams[1]));
 402     Handle(Geom_BSplineCurve) aBSpline2 =
 403       Handle(Geom_BSplineCurve)::DownCast(aBSpline->Copy());
 404     const int aKCount = aBSpline->NbKnots();
 405     for (int aKN = 1; aKN < aKCount; ++aSqDIt, ++aKN)
 406     {
 407       if (*aSqDIt > aThresSqDefl)
 408       {
 409         aBSpline2->InsertKnot(
 410           (aBSpline->Knot(aKN) + aBSpline->Knot(aKN + 1)) * 0.5);
 411       }
 412     }
 413     TopoDS_Edge aEdge;
 414     BRep_Builder().MakeEdge(aEdge, aBSpline2, Precision::Confusion());
 415     BRep_Builder().Add(aEdge, TopExp::FirstVertex(*aEIt));
 416     BRep_Builder().Add(aEdge, TopExp::LastVertex(*aEIt));
 417     thePieceCount += aBSpline2->NbKnots() - 1;
 418     *aEIt = aEdge;
 419   }
 420   return aMaxDefl;
 421 }
 422
 423 bool HYDROData_PolylineOperator::Extract( const Handle(HYDROData_Document)& theDocument,
 424                                           const Handle(HYDROData_Object)& theObject )
 425 {
 426   if( theObject.IsNull() || theDocument.IsNull() )
 427     return false;
 428
 429   QList<TopoDS_Shape> aBoundShapes;
 430   QStringList aBoundNames;
 431
 432   theObject->GetBoundaries( aBoundShapes, aBoundNames );
 433
 434   for( int i=0, n=aBoundShapes.size(); i<n; i++ )
 435   {
 436     TopoDS_Shape aShape = aBoundShapes[i];
 437     if( aShape.IsNull() )
 438       continue;
 439
 440     QString aBoundName = i<aBoundNames.size() ? aBoundNames[i] : "";
 441
 442     Handle( HYDROData_PolylineXY ) aPolyline =
 443       Handle( HYDROData_PolylineXY )::DownCast( theDocument->CreateObject( KIND_POLYLINEXY ) );
 444
 445     if( aPolyline.IsNull() )
 446       return false;
 447
 448     aPolyline->SetShape( aShape );
 449
 450     int anIndex = 0;
 451     QString aName = aBoundName;
 452     while( !theDocument->FindObjectByName( aName ).IsNull() )
 453     {
 454       anIndex++;
 455       aName = aBoundName + "_" + QString::number( anIndex );
 456     }
 457     aPolyline->SetName( aName );
 458   }
 459
 460   return true;
 461 }