src/GEOMImpl/GEOMImpl_ShapeDriver.cxx

   1 // Copyright (C) 2007-2013  CEA/DEN, EDF R&D, OPEN CASCADE
   2 //
   3 // Copyright (C) 2003-2007  OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
   4 // CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
   5 //
   6 // This library is free software; you can redistribute it and/or
   7 // modify it under the terms of the GNU Lesser General Public
   8 // License as published by the Free Software Foundation; either
   9 // version 2.1 of the License.
  10 //
  11 // This library is distributed in the hope that it will be useful,
  12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14 // Lesser General Public License for more details.
  15 //
  16 // You should have received a copy of the GNU Lesser General Public
  17 // License along with this library; if not, write to the Free Software
  18 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  19 //
  20 // See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
  21 //
  22
  23 #include <GEOMImpl_ShapeDriver.hxx>
  24
  25 #include <GEOMImpl_IIsoline.hxx>
  26 #include <GEOMImpl_IShapes.hxx>
  27 #include <GEOMImpl_IVector.hxx>
  28 #include <GEOMImpl_Types.hxx>
  29 #include <GEOMImpl_Block6Explorer.hxx>
  30
  31 #include <GEOM_Function.hxx>
  32 #include <GEOMUtils_Hatcher.hxx>
  33
  34 // OCCT Includes
  35 #include <ShapeFix_Wire.hxx>
  36 #include <ShapeFix_Edge.hxx>
  37 #include <ShapeFix_Shape.hxx>
  38
  39 #include <BRep_Builder.hxx>
  40 #include <BRep_Tool.hxx>
  41 #include <BRepAdaptor_Curve.hxx>
  42 #include <BRepAlgo_FaceRestrictor.hxx>
  43 #include <BRepBuilderAPI_Copy.hxx>
  44 #include <BRepBuilderAPI_Sewing.hxx>
  45 #include <BRepBuilderAPI_MakeWire.hxx>
  46 #include <BRepBuilderAPI_MakeEdge.hxx>
  47 #include <BRepCheck.hxx>
  48 #include <BRepCheck_Analyzer.hxx>
  49 #include <BRepCheck_Shell.hxx>
  50 #include <BRepClass3d_SolidClassifier.hxx>
  51 #include <BRepLib.hxx>
  52 #include <BRepLib_MakeEdge.hxx>
  53 #include <BRepTools_WireExplorer.hxx>
  54
  55 #include <ShapeAnalysis.hxx>
  56 #include <ShapeAnalysis_FreeBounds.hxx>
  57
  58 #include <TopAbs.hxx>
  59 #include <TopExp.hxx>
  60 #include <TopExp_Explorer.hxx>
  61 #include <TopoDS.hxx>
  62 #include <TopoDS_Shape.hxx>
  63 #include <TopoDS_Edge.hxx>
  64 #include <TopoDS_Wire.hxx>
  65 #include <TopoDS_Shell.hxx>
  66 #include <TopoDS_Solid.hxx>
  67 #include <TopoDS_Compound.hxx>
  68 #include <TopoDS_Iterator.hxx>
  69
  70 #include <TopTools_MapOfShape.hxx>
  71 #include <TopTools_HSequenceOfShape.hxx>
  72
  73 #include <ElCLib.hxx>
  74
  75 #include <GCPnts_AbscissaPoint.hxx>
  76
  77 #include <Geom_TrimmedCurve.hxx>
  78 #include <Geom_Surface.hxx>
  79 #include <GeomAbs_CurveType.hxx>
  80 #include <GeomConvert_CompCurveToBSplineCurve.hxx>
  81 #include <GeomConvert.hxx>
  82 #include <GeomLProp.hxx>
  83
  84 #include <TColStd_SequenceOfReal.hxx>
  85 #include <TColStd_HSequenceOfTransient.hxx>
  86 #include <TColStd_Array1OfReal.hxx>
  87 #include <TColGeom_SequenceOfCurve.hxx>
  88 #include <TColGeom_Array1OfBSplineCurve.hxx>
  89 #include <TColGeom_HArray1OfBSplineCurve.hxx>
  90
  91 #include <Precision.hxx>
  92
  93 #include <Standard_NullObject.hxx>
  94 #include <Standard_TypeMismatch.hxx>
  95 #include <Standard_ConstructionError.hxx>
  96
  97 //modified by NIZNHY-PKV Wed Dec 28 13:48:20 2011f
  98 //static
  99 //  void KeepEdgesOrder(const Handle(TopTools_HSequenceOfShape)& aEdges,
 100 //                    const Handle(TopTools_HSequenceOfShape)& aWires);
 101 //modified by NIZNHY-PKV Wed Dec 28 13:48:23 2011t
 102
 103 //=======================================================================
 104 //function : GetID
 105 //purpose  :
 106 //=======================================================================
 107 const Standard_GUID& GEOMImpl_ShapeDriver::GetID()
 108 {
 109   static Standard_GUID aShapeDriver("FF1BBB54-5D14-4df2-980B-3A668264EA16");
 110   return aShapeDriver;
 111 }
 112
 113
 114 //=======================================================================
 115 //function : GEOMImpl_ShapeDriver
 116 //purpose  :
 117 //=======================================================================
 118 GEOMImpl_ShapeDriver::GEOMImpl_ShapeDriver()
 119 {
 120 }
 121
 122 //=======================================================================
 123 //function : Execute
 124 //purpose  :
 125 //=======================================================================
 126 Standard_Integer GEOMImpl_ShapeDriver::Execute(TFunction_Logbook& log) const
 127 {
 128   if (Label().IsNull()) return 0;
 129   Handle(GEOM_Function) aFunction = GEOM_Function::GetFunction(Label());
 130
 131   GEOMImpl_IShapes aCI (aFunction);
 132   Standard_Integer aType = aFunction->GetType();
 133
 134   TopoDS_Shape aShape;
 135   TCollection_AsciiString aWarning;
 136
 137   BRep_Builder B;
 138
 139   if (aType == WIRE_EDGES) {
 140     Handle(TColStd_HSequenceOfTransient) aShapes = aCI.GetShapes();
 141
 142     Standard_Real aTolerance = aCI.GetTolerance();
 143     if (aTolerance < Precision::Confusion())
 144       aTolerance = Precision::Confusion();
 145
 146     aShape = MakeWireFromEdges(aShapes, aTolerance);
 147   }
 148   else if (aType == FACE_WIRE) {
 149     Handle(GEOM_Function) aRefBase = aCI.GetBase();
 150     TopoDS_Shape aShapeBase = aRefBase->GetValue();
 151     if (aShapeBase.IsNull()) Standard_NullObject::Raise("Argument Shape is null");
 152     TopoDS_Wire W;
 153     if (aShapeBase.ShapeType() == TopAbs_WIRE) {
 154       W = TopoDS::Wire(aShapeBase);
 155       // check the wire is closed
 156       TopoDS_Vertex aV1, aV2;
 157       TopExp::Vertices(W, aV1, aV2);
 158       if ( !aV1.IsNull() && !aV2.IsNull() && aV1.IsSame(aV2) )
 159         aShapeBase.Closed(true);
 160       else
 161         Standard_NullObject::Raise
 162           ("Shape for face construction is not closed");
 163     }
 164     else if (aShapeBase.ShapeType() == TopAbs_EDGE && aShapeBase.Closed()) {
 165       BRepBuilderAPI_MakeWire MW;
 166       MW.Add(TopoDS::Edge(aShapeBase));
 167       if (!MW.IsDone()) {
 168         Standard_ConstructionError::Raise("Wire construction failed");
 169       }
 170       W = MW;
 171     }
 172     else {
 173       Standard_NullObject::Raise
 174         ("Shape for face construction is neither a wire nor a closed edge");
 175     }
 176     aWarning = GEOMImpl_Block6Explorer::MakeFace(W, aCI.GetIsPlanar(), aShape);
 177     if (aShape.IsNull()) {
 178       Standard_ConstructionError::Raise("Face construction failed");
 179     }
 180   }
 181   else if (aType == FACE_WIRES) {
 182     // Try to build a face from a set of wires and edges
 183     int ind;
 184
 185     Handle(TColStd_HSequenceOfTransient) aShapes = aCI.GetShapes();
 186     int nbshapes = aShapes->Length();
 187     if (nbshapes < 1) {
 188       Standard_ConstructionError::Raise("No wires or edges given");
 189     }
 190
 191     // 1. Extract all edges from the given arguments
 192     TopTools_MapOfShape aMapEdges;
 193     Handle(TopTools_HSequenceOfShape) aSeqEdgesIn = new TopTools_HSequenceOfShape;
 194
 195     for (ind = 1; ind <= nbshapes; ind++) {
 196       Handle(GEOM_Function) aRefSh_i = Handle(GEOM_Function)::DownCast(aShapes->Value(ind));
 197       TopoDS_Shape aSh_i = aRefSh_i->GetValue();
 198
 199       TopExp_Explorer anExpE_i (aSh_i, TopAbs_EDGE);
 200       for (; anExpE_i.More(); anExpE_i.Next()) {
 201         if (aMapEdges.Add(anExpE_i.Current())) {
 202           aSeqEdgesIn->Append(anExpE_i.Current());
 203         }
 204       }
 205     }
 206
 207     // 2. Connect edges to wires of maximum length
 208     Handle(TopTools_HSequenceOfShape) aSeqWiresOut;
 209     ShapeAnalysis_FreeBounds::ConnectEdgesToWires(aSeqEdgesIn, Precision::Confusion(),
 210                                                   /*shared*/Standard_False, aSeqWiresOut);
 211     //modified by NIZNHY-PKV Wed Dec 28 13:46:55 2011f
 212     //KeepEdgesOrder(aSeqEdgesIn, aSeqWiresOut);
 213     //modified by NIZNHY-PKV Wed Dec 28 13:46:59 2011t
 214
 215     // 3. Separate closed wires
 216     Handle(TopTools_HSequenceOfShape) aSeqClosedWires = new TopTools_HSequenceOfShape;
 217     Handle(TopTools_HSequenceOfShape) aSeqOpenWires = new TopTools_HSequenceOfShape;
 218     for (ind = 1; ind <= aSeqWiresOut->Length(); ind++) {
 219       if (aSeqWiresOut->Value(ind).Closed())
 220         aSeqClosedWires->Append(aSeqWiresOut->Value(ind));
 221       else
 222         aSeqOpenWires->Append(aSeqWiresOut->Value(ind));
 223     }
 224
 225     if (aSeqClosedWires->Length() < 1) {
 226       Standard_ConstructionError::Raise
 227         ("There is no closed contour can be built from the given arguments");
 228     }
 229
 230     // 4. Build a face / list of faces from all the obtained closed wires
 231
 232     // 4.a. Basic face
 233     TopoDS_Shape aFFace;
 234     TopoDS_Wire aW1 = TopoDS::Wire(aSeqClosedWires->Value(1));
 235     aWarning = GEOMImpl_Block6Explorer::MakeFace(aW1, aCI.GetIsPlanar(), aFFace);
 236     if (aFFace.IsNull()) {
 237       Standard_ConstructionError::Raise("Face construction failed");
 238     }
 239
 240     // 4.b. Add other wires
 241     if (aSeqClosedWires->Length() == 1) {
 242       aShape = aFFace;
 243     }
 244     else {
 245       TopoDS_Compound C;
 246       BRep_Builder aBuilder;
 247       aBuilder.MakeCompound(C);
 248       BRepAlgo_FaceRestrictor FR;
 249
 250       TopAbs_Orientation OriF = aFFace.Orientation();
 251       TopoDS_Shape aLocalS = aFFace.Oriented(TopAbs_FORWARD);
 252       FR.Init(TopoDS::Face(aLocalS), Standard_False, Standard_True);
 253
 254       for (ind = 1; ind <= aSeqClosedWires->Length(); ind++) {
 255         TopoDS_Wire aW = TopoDS::Wire(aSeqClosedWires->Value(ind));
 256         FR.Add(aW);
 257       }
 258
 259       FR.Perform();
 260
 261       if (FR.IsDone()) {
 262         int k = 0;
 263         TopoDS_Shape aFace;
 264         for (; FR.More(); FR.Next()) {
 265           aFace = FR.Current().Oriented(OriF);
 266           aBuilder.Add(C, aFace);
 267           k++;
 268         }
 269         if (k == 1) {
 270           aShape = aFace;
 271         } else {
 272           aShape = C;
 273         }
 274       }
 275     }
 276
 277     // 5. Add all open wires to the result
 278     if (aSeqOpenWires->Length() > 0) {
 279       //Standard_ConstructionError::Raise("There are some open wires");
 280       TopoDS_Compound C;
 281       BRep_Builder aBuilder;
 282       if (aSeqClosedWires->Length() == 1) {
 283         aBuilder.MakeCompound(C);
 284         aBuilder.Add(C, aShape);
 285       }
 286       else {
 287         C = TopoDS::Compound(aShape);
 288       }
 289
 290       for (ind = 1; ind <= aSeqOpenWires->Length(); ind++) {
 291         aBuilder.Add(C, aSeqOpenWires->Value(ind));
 292       }
 293
 294       aShape = C;
 295     }
 296   }
 297   else if (aType == SHELL_FACES) {
 298     Handle(TColStd_HSequenceOfTransient) aShapes = aCI.GetShapes();
 299     unsigned int ind, nbshapes = aShapes->Length();
 300
 301     // add faces
 302     BRepBuilderAPI_Sewing aSewing (Precision::Confusion()*10.0);
 303     for (ind = 1; ind <= nbshapes; ind++) {
 304       Handle(GEOM_Function) aRefShape = Handle(GEOM_Function)::DownCast(aShapes->Value(ind));
 305       TopoDS_Shape aShape_i = aRefShape->GetValue();
 306       if (aShape_i.IsNull()) {
 307         Standard_NullObject::Raise("Face for shell construction is null");
 308       }
 309       aSewing.Add(aShape_i);
 310     }
 311
 312     aSewing.Perform();
 313
 314     TopoDS_Shape sh = aSewing.SewedShape();
 315
 316     if (sh.ShapeType()==TopAbs_FACE && nbshapes==1) {
 317       // case for creation of shell from one face - PAL12722 (skl 26.06.2006)
 318       TopoDS_Shell ss;
 319       B.MakeShell(ss);
 320       B.Add(ss,sh);
 321       aShape = ss;
 322     }
 323     else {
 324       //TopExp_Explorer exp (aSewing.SewedShape(), TopAbs_SHELL);
 325       TopExp_Explorer exp (sh, TopAbs_SHELL);
 326       Standard_Integer ish = 0;
 327       for (; exp.More(); exp.Next()) {
 328         aShape = exp.Current();
 329         ish++;
 330       }
 331
 332       if (ish != 1) {
 333         // try the case of one face (Mantis issue 0021809)
 334         TopExp_Explorer expF (sh, TopAbs_FACE);
 335         Standard_Integer ifa = 0;
 336         for (; expF.More(); expF.Next()) {
 337           aShape = expF.Current();
 338           ifa++;
 339         }
 340
 341         if (ifa == 1) {
 342           TopoDS_Shell ss;
 343           B.MakeShell(ss);
 344           B.Add(ss,aShape);
 345           aShape = ss;
 346         }
 347         else {
 348           aShape = aSewing.SewedShape();
 349         }
 350       }
 351     }
 352
 353   }
 354   else if (aType == SOLID_SHELL) {
 355     Handle(GEOM_Function) aRefShell = aCI.GetBase();
 356     TopoDS_Shape aShapeShell = aRefShell->GetValue();
 357     if (!aShapeShell.IsNull() && aShapeShell.ShapeType() == TopAbs_COMPOUND) {
 358       TopoDS_Iterator It (aShapeShell, Standard_True, Standard_True);
 359       if (It.More()) aShapeShell = It.Value();
 360     }
 361     if (aShapeShell.IsNull() || aShapeShell.ShapeType() != TopAbs_SHELL) {
 362       Standard_NullObject::Raise("Shape for solid construction is null or not a shell");
 363     }
 364
 365     BRepCheck_Shell chkShell(TopoDS::Shell(aShapeShell));
 366     if (chkShell.Closed() == BRepCheck_NotClosed) return 0;
 367
 368     TopoDS_Solid Sol;
 369     B.MakeSolid(Sol);
 370     B.Add(Sol, aShapeShell);
 371     BRepClass3d_SolidClassifier SC (Sol);
 372     SC.PerformInfinitePoint(Precision::Confusion());
 373     if (SC.State() == TopAbs_IN) {
 374       B.MakeSolid(Sol);
 375       B.Add(Sol, aShapeShell.Reversed());
 376     }
 377
 378     aShape = Sol;
 379
 380   }
 381   else if (aType == SOLID_SHELLS) {
 382     Handle(TColStd_HSequenceOfTransient) aShapes = aCI.GetShapes();
 383     unsigned int ind, nbshapes = aShapes->Length();
 384     Standard_Integer ish = 0;
 385     TopoDS_Solid Sol;
 386     B.MakeSolid(Sol);
 387
 388     // add shapes
 389     for (ind = 1; ind <= nbshapes; ind++) {
 390       Handle(GEOM_Function) aRefShape = Handle(GEOM_Function)::DownCast(aShapes->Value(ind));
 391       TopoDS_Shape aShapeShell = aRefShape->GetValue();
 392       if (aShapeShell.IsNull()) {
 393         Standard_NullObject::Raise("Shell for solid construction is null");
 394       }
 395       if (aShapeShell.ShapeType() == TopAbs_COMPOUND) {
 396         TopoDS_Iterator It (aShapeShell, Standard_True, Standard_True);
 397         if (It.More()) aShapeShell = It.Value();
 398       }
 399       if (aShapeShell.ShapeType() == TopAbs_SHELL) {
 400         B.Add(Sol, aShapeShell);
 401         ish++;
 402       }
 403     }
 404     if (ish == 0) return 0;
 405     BRepClass3d_SolidClassifier SC (Sol);
 406     SC.PerformInfinitePoint(Precision::Confusion());
 407     if (SC.State() == TopAbs_IN)
 408       aShape = Sol.Reversed();
 409     else
 410       aShape = Sol;
 411   }
 412   else if (aType == COMPOUND_SHAPES) {
 413     Handle(TColStd_HSequenceOfTransient) aShapes = aCI.GetShapes();
 414     unsigned int ind, nbshapes = aShapes->Length();
 415
 416     // add shapes
 417     TopoDS_Compound C;
 418     B.MakeCompound(C);
 419     for (ind = 1; ind <= nbshapes; ind++) {
 420       Handle(GEOM_Function) aRefShape = Handle(GEOM_Function)::DownCast(aShapes->Value(ind));
 421       TopoDS_Shape aShape_i = aRefShape->GetValue();
 422       if (aShape_i.IsNull()) {
 423         Standard_NullObject::Raise("Shape for compound construction is null");
 424       }
 425       B.Add(C, aShape_i);
 426     }
 427
 428     aShape = C;
 429
 430   }
 431   /*
 432   else if (aType == REVERSE_ORIENTATION) {
 433     Handle(GEOM_Function) aRefShape = aCI.GetBase();
 434     TopoDS_Shape aShape_i = aRefShape->GetValue();
 435     if (aShape_i.IsNull()) {
 436        Standard_NullObject::Raise("Shape for reverse is null");
 437     }
 438
 439     BRepBuilderAPI_Copy Copy(aShape_i);
 440     if( Copy.IsDone() ) {
 441       TopoDS_Shape tds = Copy.Shape();
 442       if( tds.IsNull() ) {
 443         Standard_ConstructionError::Raise("Orientation aborted : Can not reverse the shape");
 444       }
 445
 446       if( tds.Orientation() == TopAbs_FORWARD)
 447         tds.Orientation(TopAbs_REVERSED);
 448       else
 449         tds.Orientation(TopAbs_FORWARD);
 450
 451       aShape = tds;
 452     }
 453   }
 454   */
 455   else if (aType == EDGE_WIRE) {
 456     Handle(GEOM_Function) aRefBase = aCI.GetBase();
 457     TopoDS_Shape aWire = aRefBase->GetValue();
 458     Standard_Real LinTol = aCI.GetTolerance();
 459     Standard_Real AngTol = aCI.GetAngularTolerance();
 460     if (aWire.IsNull()) Standard_NullObject::Raise("Argument Wire is null");
 461
 462     aShape = MakeEdgeFromWire(aWire, LinTol, AngTol);
 463   }
 464   else if (aType == EDGE_CURVE_LENGTH) {
 465     GEOMImpl_IVector aVI (aFunction);
 466
 467     // RefCurve
 468     Handle(GEOM_Function) aRefCurve = aVI.GetPoint1();
 469     if (aRefCurve.IsNull()) Standard_NullObject::Raise("Argument Curve is null");
 470     TopoDS_Shape aRefShape1 = aRefCurve->GetValue();
 471     if (aRefShape1.ShapeType() != TopAbs_EDGE) {
 472       Standard_TypeMismatch::Raise
 473         ("Edge On Curve creation aborted : curve shape is not an edge");
 474     }
 475     TopoDS_Edge aRefEdge = TopoDS::Edge(aRefShape1);
 476     TopoDS_Vertex V1, V2;
 477     TopExp::Vertices(aRefEdge, V1, V2, Standard_True);
 478
 479     // RefPoint
 480     TopoDS_Vertex aRefVertex;
 481     Handle(GEOM_Function) aRefPoint = aVI.GetPoint2();
 482     if (aRefPoint.IsNull()) {
 483       aRefVertex = V1;
 484     }
 485     else {
 486       TopoDS_Shape aRefShape2 = aRefPoint->GetValue();
 487       if (aRefShape2.ShapeType() != TopAbs_VERTEX) {
 488         Standard_TypeMismatch::Raise
 489           ("Edge On Curve creation aborted : start point shape is not a vertex");
 490       }
 491       aRefVertex = TopoDS::Vertex(aRefShape2);
 492     }
 493     gp_Pnt aRefPnt = BRep_Tool::Pnt(aRefVertex);
 494
 495     // Length
 496     Standard_Real aLength = aVI.GetParameter();
 497     //Standard_Real aCurveLength = IntTools::Length(aRefEdge);
 498     //if (aLength > aCurveLength) {
 499     //  Standard_ConstructionError::Raise
 500     //    ("Edge On Curve creation aborted : given length is greater than edges length");
 501     //}
 502     if (fabs(aLength) < Precision::Confusion()) {
 503       Standard_ConstructionError::Raise
 504         ("Edge On Curve creation aborted : given length is smaller than Precision::Confusion()");
 505     }
 506
 507     // Check orientation
 508     Standard_Real UFirst, ULast;
 509     Handle(Geom_Curve) EdgeCurve = BRep_Tool::Curve(aRefEdge, UFirst, ULast);
 510     Handle(Geom_Curve) ReOrientedCurve = EdgeCurve;
 511
 512     Standard_Real dU = ULast - UFirst;
 513     Standard_Real par1 = UFirst + 0.1 * dU;
 514     Standard_Real par2 = ULast  - 0.1 * dU;
 515
 516     gp_Pnt P1 = EdgeCurve->Value(par1);
 517     gp_Pnt P2 = EdgeCurve->Value(par2);
 518
 519     if (aRefPnt.SquareDistance(P2) < aRefPnt.SquareDistance(P1)) {
 520       ReOrientedCurve = EdgeCurve->Reversed();
 521       UFirst = EdgeCurve->ReversedParameter(ULast);
 522     }
 523
 524     // Get the point by length
 525     GeomAdaptor_Curve AdapCurve = GeomAdaptor_Curve(ReOrientedCurve);
 526     GCPnts_AbscissaPoint anAbsPnt (AdapCurve, aLength, UFirst);
 527     Standard_Real aParam = anAbsPnt.Parameter();
 528
 529     if (AdapCurve.IsClosed() && aLength < 0.0) {
 530       Standard_Real aTmp = aParam;
 531       aParam = UFirst;
 532       UFirst = aTmp;
 533     }
 534
 535     BRepBuilderAPI_MakeEdge aME (ReOrientedCurve, UFirst, aParam);
 536     if (aME.IsDone())
 537       aShape = aME.Shape();
 538   } else if (aType == SHAPE_ISOLINE) {
 539     GEOMImpl_IIsoline     aII (aFunction);
 540     Handle(GEOM_Function) aRefFace = aII.GetFace();
 541     TopoDS_Shape          aShapeFace = aRefFace->GetValue();
 542
 543     if (aShapeFace.ShapeType() == TopAbs_FACE) {
 544       TopoDS_Face   aFace  = TopoDS::Face(aShapeFace);
 545       bool          isUIso = aII.GetIsUIso();
 546       Standard_Real aParam = aII.GetParameter();
 547       Standard_Real U1,U2,V1,V2;
 548
 549       // Construct a real geometric parameter.
 550       aFace.Orientation(TopAbs_FORWARD);
 551       ShapeAnalysis::GetFaceUVBounds(aFace,U1,U2,V1,V2);
 552
 553       if (isUIso) {
 554         aParam = U1 + (U2 - U1)*aParam;
 555       } else {
 556         aParam = V1 + (V2 - V1)*aParam;
 557       }
 558
 559       aShape = MakeIsoline(aFace, isUIso, aParam);
 560     } else {
 561       Standard_NullObject::Raise
 562         ("Shape for isoline construction is not a face");
 563     }
 564   }
 565   else {
 566   }
 567
 568   if (aShape.IsNull()) return 0;
 569
 570   // Check shape validity
 571   BRepCheck_Analyzer ana (aShape, false);
 572   if (!ana.IsValid()) {
 573     //Standard_ConstructionError::Raise("Algorithm have produced an invalid shape result");
 574     // For Mantis issue 0021772: EDF 2336 GEOM: Non valid face created from two circles
 575     Handle(ShapeFix_Shape) aSfs = new ShapeFix_Shape (aShape);
 576     aSfs->Perform();
 577     aShape = aSfs->Shape();
 578   }
 579
 580   aFunction->SetValue(aShape);
 581
 582   log.SetTouched(Label());
 583
 584   if (!aWarning.IsEmpty())
 585     Standard_Failure::Raise(aWarning.ToCString());
 586
 587   return 1;
 588 }
 589
 590 TopoDS_Wire GEOMImpl_ShapeDriver::MakeWireFromEdges(const Handle(TColStd_HSequenceOfTransient)& theEdgesFuncs,
 591                                                     const Standard_Real theTolerance)
 592 {
 593   BRep_Builder B;
 594
 595   TopoDS_Wire aWire;
 596   B.MakeWire(aWire);
 597
 598   // add edges
 599   for (unsigned int ind = 1; ind <= theEdgesFuncs->Length(); ind++) {
 600     Handle(GEOM_Function) aRefShape = Handle(GEOM_Function)::DownCast(theEdgesFuncs->Value(ind));
 601     TopoDS_Shape aShape_i = aRefShape->GetValue();
 602     if (aShape_i.IsNull()) {
 603       Standard_NullObject::Raise("Shape for wire construction is null");
 604     }
 605     if (aShape_i.ShapeType() == TopAbs_EDGE || aShape_i.ShapeType() == TopAbs_WIRE) {
 606       TopExp_Explorer exp (aShape_i, TopAbs_EDGE);
 607       for (; exp.More(); exp.Next())
 608         B.Add(aWire, TopoDS::Edge(exp.Current()));
 609     } else {
 610       Standard_TypeMismatch::Raise
 611         ("Shape for wire construction is neither an edge nor a wire");
 612     }
 613   }
 614
 615   // fix edges order
 616   Handle(ShapeFix_Wire) aFW = new ShapeFix_Wire;
 617   aFW->Load(aWire);
 618   aFW->FixReorder();
 619
 620   if (aFW->StatusReorder(ShapeExtend_FAIL1)) {
 621     Standard_ConstructionError::Raise("Wire construction failed: several loops detected");
 622   }
 623   else if (aFW->StatusReorder(ShapeExtend_FAIL)) {
 624     Standard_ConstructionError::Raise("Wire construction failed");
 625   }
 626   else {
 627   }
 628
 629   // IMP 0019766: Building a Wire from unconnected edges by introducing a tolerance
 630   aFW->ClosedWireMode() = Standard_False;
 631   aFW->FixConnected(theTolerance);
 632   if (aFW->StatusConnected(ShapeExtend_FAIL)) {
 633     Standard_ConstructionError::Raise("Wire construction failed: cannot build connected wire");
 634   }
 635   // IMP 0019766
 636   if (aFW->StatusConnected(ShapeExtend_DONE3)) {
 637     // Confused with <prec> but not Analyzer.Precision(), set the same
 638     aFW->FixGapsByRangesMode() = Standard_True;
 639     if (aFW->FixGaps3d()) {
 640       Handle(ShapeExtend_WireData) sbwd = aFW->WireData();
 641       Handle(ShapeFix_Edge) aFe = new ShapeFix_Edge;
 642       for (Standard_Integer iedge = 1; iedge <= sbwd->NbEdges(); iedge++) {
 643         TopoDS_Edge aEdge = TopoDS::Edge(sbwd->Edge(iedge));
 644         aFe->FixVertexTolerance(aEdge);
 645         aFe->FixSameParameter(aEdge);
 646       }
 647     }
 648     else if (aFW->StatusGaps3d(ShapeExtend_FAIL)) {
 649       Standard_ConstructionError::Raise("Wire construction failed: cannot fix 3d gaps");
 650     }
 651   }
 652   aWire = aFW->WireAPIMake();
 653
 654   return aWire;
 655 }
 656
 657 TopoDS_Edge GEOMImpl_ShapeDriver::MakeEdgeFromWire(const TopoDS_Shape& aWire,
 658                                                    const Standard_Real LinTol,
 659                                                    const Standard_Real AngTol)
 660 {
 661     TopoDS_Edge ResEdge;
 662
 663     BRepLib::BuildCurves3d(aWire);
 664     Handle(ShapeFix_Shape) Fixer = new ShapeFix_Shape(aWire);
 665     Fixer->SetPrecision(LinTol);
 666     Fixer->SetMaxTolerance(LinTol);
 667     Fixer->Perform();
 668     TopoDS_Wire theWire = TopoDS::Wire(Fixer->Shape());
 669
 670     TColGeom_SequenceOfCurve CurveSeq;
 671     TopTools_SequenceOfShape LocSeq;
 672     TColStd_SequenceOfReal FparSeq;
 673     TColStd_SequenceOfReal LparSeq;
 674     TColStd_SequenceOfReal TolSeq;
 675     GeomAbs_CurveType CurType;
 676     TopoDS_Vertex FirstVertex, LastVertex;
 677     Standard_Boolean FinalReverse = Standard_False;
 678
 679     BRepTools_WireExplorer wexp(theWire) ;
 680     for (; wexp.More(); wexp.Next())
 681     {
 682       TopoDS_Edge anEdge = wexp.Current();
 683       Standard_Real fpar, lpar;
 684       TopLoc_Location aLoc;
 685       Handle(Geom_Curve) aCurve = BRep_Tool::Curve(anEdge, aLoc, fpar, lpar);
 686       if (aCurve.IsNull())
 687         continue;
 688
 689       BRepAdaptor_Curve BAcurve(anEdge);
 690       GeomAbs_CurveType aType = BAcurve.GetType();
 691
 692       Handle(Geom_Curve) aBasisCurve = BAcurve.Curve().Curve();
 693
 694       if (aBasisCurve->IsPeriodic())
 695         ElCLib::AdjustPeriodic(aBasisCurve->FirstParameter(), aBasisCurve->LastParameter(),
 696                                Precision::PConfusion(), fpar, lpar);
 697
 698       if (CurveSeq.IsEmpty())
 699       {
 700         CurveSeq.Append(aCurve);
 701         TopoDS_Shape aLocShape;
 702         aLocShape.Location(aLoc);
 703         aLocShape.Orientation(wexp.Orientation());
 704         LocSeq.Append(aLocShape);
 705         FparSeq.Append(fpar);
 706         LparSeq.Append(lpar);
 707         CurType = aType;
 708         FirstVertex = wexp.CurrentVertex();
 709         if (anEdge.Orientation() == TopAbs_REVERSED)
 710           FinalReverse = Standard_True;
 711       }
 712       else
 713       {
 714         Standard_Boolean Done = Standard_False;
 715         Standard_Real NewFpar, NewLpar;
 716         GeomAdaptor_Curve GAprevcurve(CurveSeq.Last());
 717         TopoDS_Vertex CurVertex = wexp.CurrentVertex();
 718         TopoDS_Vertex CurFirstVer = TopExp::FirstVertex(anEdge);
 719         TopAbs_Orientation ConnectByOrigin = (CurVertex.IsSame(CurFirstVer))? TopAbs_FORWARD : TopAbs_REVERSED;
 720         if (aCurve == CurveSeq.Last())
 721         {
 722           NewFpar = fpar;
 723           NewLpar = lpar;
 724           if (aBasisCurve->IsPeriodic())
 725           {
 726             if (NewLpar < NewFpar)
 727               NewLpar += aBasisCurve->Period();
 728             if (ConnectByOrigin == TopAbs_FORWARD)
 729               ElCLib::AdjustPeriodic(FparSeq.Last(),
 730                                      FparSeq.Last() + aBasisCurve->Period(),
 731                                      Precision::PConfusion(), NewFpar, NewLpar);
 732             else
 733               ElCLib::AdjustPeriodic(FparSeq.Last() - aBasisCurve->Period(),
 734                                      FparSeq.Last(),
 735                                      Precision::PConfusion(), NewFpar, NewLpar);
 736           }
 737           Done = Standard_True;
 738         }
 739         else if (aType == CurType &&
 740                  aType != GeomAbs_BezierCurve &&
 741                  aType != GeomAbs_BSplineCurve &&
 742                  aType != GeomAbs_OtherCurve)
 743         {
 744           switch (aType)
 745           {
 746           case GeomAbs_Line:
 747             {
 748               gp_Lin aLine    = BAcurve.Line();
 749               gp_Lin PrevLine = GAprevcurve.Line();
 750               if (aLine.Contains(PrevLine.Location(), LinTol) &&
 751                   aLine.Direction().IsParallel(PrevLine.Direction(), AngTol))
 752               {
 753                 gp_Pnt P1 = ElCLib::Value(fpar, aLine);
 754                 gp_Pnt P2 = ElCLib::Value(lpar, aLine);
 755                 NewFpar = ElCLib::Parameter(PrevLine, P1);
 756                 NewLpar = ElCLib::Parameter(PrevLine, P2);
 757                 if (NewLpar < NewFpar)
 758                 {
 759                   Standard_Real MemNewFpar = NewFpar;
 760                   NewFpar = NewLpar;
 761                   NewLpar = MemNewFpar;
 762                   ConnectByOrigin = TopAbs::Reverse(ConnectByOrigin);
 763                 }
 764                 Done = Standard_True;
 765               }
 766               break;
 767             }
 768           case GeomAbs_Circle:
 769             {
 770               gp_Circ aCircle    = BAcurve.Circle();
 771               gp_Circ PrevCircle = GAprevcurve.Circle();
 772               if (aCircle.Location().Distance(PrevCircle.Location()) <= LinTol &&
 773                   Abs(aCircle.Radius() - PrevCircle.Radius()) <= LinTol &&
 774                   aCircle.Axis().IsParallel(PrevCircle.Axis(), AngTol))
 775               {
 776                 if (aCircle.Axis().Direction() * PrevCircle.Axis().Direction() < 0.)
 777                 {
 778                   Standard_Real memfpar = fpar;
 779                   fpar = lpar;
 780                   lpar = memfpar;
 781                   ConnectByOrigin = TopAbs::Reverse(ConnectByOrigin);
 782                 }
 783                 gp_Pnt P1 = ElCLib::Value(fpar, aCircle);
 784                 gp_Pnt P2 = ElCLib::Value(lpar, aCircle);
 785                 NewFpar = ElCLib::Parameter(PrevCircle, P1);
 786                 NewLpar = ElCLib::Parameter(PrevCircle, P2);
 787                 if (NewLpar < NewFpar)
 788                   NewLpar += 2.*M_PI;
 789                 //Standard_Real MemNewFpar = NewFpar, MemNewLpar =  NewLpar;
 790                 if (ConnectByOrigin == TopAbs_FORWARD)
 791                   ElCLib::AdjustPeriodic(FparSeq.Last(),
 792                                          FparSeq.Last() + 2.*M_PI,
 793                                          Precision::PConfusion(), NewFpar, NewLpar);
 794                 else
 795                   ElCLib::AdjustPeriodic(FparSeq.Last() - 2.*M_PI,
 796                                          FparSeq.Last(),
 797                                          Precision::PConfusion(), NewFpar, NewLpar);
 798                 Done = Standard_True;
 799               }
 800               break;
 801             }
 802           case GeomAbs_Ellipse:
 803             {
 804               gp_Elips anEllipse   = BAcurve.Ellipse();
 805               gp_Elips PrevEllipse = GAprevcurve.Ellipse();
 806               if (anEllipse.Focus1().Distance(PrevEllipse.Focus1()) <= LinTol &&
 807                   anEllipse.Focus2().Distance(PrevEllipse.Focus2()) <= LinTol &&
 808                   Abs(anEllipse.MajorRadius() - PrevEllipse.MajorRadius()) <= LinTol &&
 809                   Abs(anEllipse.MinorRadius() - PrevEllipse.MinorRadius()) <= LinTol &&
 810                   anEllipse.Axis().IsParallel(PrevEllipse.Axis(), AngTol))
 811               {
 812                 if (anEllipse.Axis().Direction() * PrevEllipse.Axis().Direction() < 0.)
 813                 {
 814                   Standard_Real memfpar = fpar;
 815                   fpar = lpar;
 816                   lpar = memfpar;
 817                   ConnectByOrigin = TopAbs::Reverse(ConnectByOrigin);
 818                 }
 819                 gp_Pnt P1 = ElCLib::Value(fpar, anEllipse);
 820                 gp_Pnt P2 = ElCLib::Value(lpar, anEllipse);
 821                 NewFpar = ElCLib::Parameter(PrevEllipse, P1);
 822                 NewLpar = ElCLib::Parameter(PrevEllipse, P2);
 823                 if (NewLpar < NewFpar)
 824                   NewLpar += 2.*M_PI;
 825                 if (ConnectByOrigin == TopAbs_FORWARD)
 826                   ElCLib::AdjustPeriodic(FparSeq.Last(),
 827                                          FparSeq.Last() + 2.*M_PI,
 828                                          Precision::PConfusion(), NewFpar, NewLpar);
 829                 else
 830                   ElCLib::AdjustPeriodic(FparSeq.Last() - 2.*M_PI,
 831                                          FparSeq.Last(),
 832                                          Precision::PConfusion(), NewFpar, NewLpar);
 833                 Done = Standard_True;
 834               }
 835               break;
 836             }
 837           case GeomAbs_Hyperbola:
 838             {
 839               gp_Hypr aHypr    = BAcurve.Hyperbola();
 840               gp_Hypr PrevHypr = GAprevcurve.Hyperbola();
 841               if (aHypr.Focus1().Distance(PrevHypr.Focus1()) <= LinTol &&
 842                   aHypr.Focus2().Distance(PrevHypr.Focus2()) <= LinTol &&
 843                   Abs(aHypr.MajorRadius() - PrevHypr.MajorRadius()) <= LinTol &&
 844                   Abs(aHypr.MinorRadius() - PrevHypr.MinorRadius()) <= LinTol &&
 845                   aHypr.Axis().IsParallel(PrevHypr.Axis(), AngTol))
 846               {
 847                 gp_Pnt P1 = ElCLib::Value(fpar, aHypr);
 848                 gp_Pnt P2 = ElCLib::Value(lpar, aHypr);
 849                 NewFpar = ElCLib::Parameter(PrevHypr, P1);
 850                 NewLpar = ElCLib::Parameter(PrevHypr, P2);
 851                 if (NewLpar < NewFpar)
 852                 {
 853                   Standard_Real MemNewFpar = NewFpar;
 854                   NewFpar = NewLpar;
 855                   NewLpar = MemNewFpar;
 856                   ConnectByOrigin = TopAbs::Reverse(ConnectByOrigin);
 857                 }
 858                 Done = Standard_True;
 859               }
 860               break;
 861             }
 862           case GeomAbs_Parabola:
 863             {
 864               gp_Parab aParab    = BAcurve.Parabola();
 865               gp_Parab PrevParab = GAprevcurve.Parabola();
 866               if (aParab.Location().Distance(PrevParab.Location()) <= LinTol &&
 867                   aParab.Focus().Distance(PrevParab.Focus()) <= LinTol &&
 868                   Abs(aParab.Focal() - PrevParab.Focal()) <= LinTol &&
 869                   aParab.Axis().IsParallel(PrevParab.Axis(), AngTol))
 870               {
 871                 gp_Pnt P1 = ElCLib::Value(fpar, aParab);
 872                 gp_Pnt P2 = ElCLib::Value(lpar, aParab);
 873                 NewFpar = ElCLib::Parameter(PrevParab, P1);
 874                 NewLpar = ElCLib::Parameter(PrevParab, P2);
 875                 if (NewLpar < NewFpar)
 876                 {
 877                   Standard_Real MemNewFpar = NewFpar;
 878                   NewFpar = NewLpar;
 879                   NewLpar = MemNewFpar;
 880                   ConnectByOrigin = TopAbs::Reverse(ConnectByOrigin);
 881                 }
 882                 Done = Standard_True;
 883               }
 884               break;
 885             }
 886           } //end of switch (aType)
 887         } // end of else if (aType == CurType && ...
 888         if (Done)
 889         {
 890           if (NewFpar < FparSeq.Last())
 891             FparSeq(FparSeq.Length()) = NewFpar;
 892           else
 893             LparSeq(LparSeq.Length()) = NewLpar;
 894         }
 895         else
 896         {
 897           CurveSeq.Append(aCurve);
 898           TopoDS_Shape aLocShape;
 899           aLocShape.Location(aLoc);
 900           aLocShape.Orientation(wexp.Orientation());
 901           LocSeq.Append(aLocShape);
 902           FparSeq.Append(fpar);
 903           LparSeq.Append(lpar);
 904           TolSeq.Append(BRep_Tool::Tolerance(CurVertex));
 905           CurType = aType;
 906         }
 907       } // end of else (CurveSeq.IsEmpty()) -> not first time
 908     } // end for (; wexp.More(); wexp.Next())
 909
 910     LastVertex = wexp.CurrentVertex();
 911     TolSeq.Append(BRep_Tool::Tolerance(LastVertex));
 912
 913     TopoDS_Vertex FirstVtx_final = (FinalReverse)? LastVertex : FirstVertex;
 914     FirstVtx_final.Orientation(TopAbs_FORWARD);
 915     TopoDS_Vertex LastVtx_final = (FinalReverse)? FirstVertex : LastVertex;
 916     LastVtx_final.Orientation(TopAbs_REVERSED);
 917
 918     if (!CurveSeq.IsEmpty())
 919     {
 920       Standard_Integer nb_curve = CurveSeq.Length();   //number of curves
 921       TColGeom_Array1OfBSplineCurve tab(0,nb_curve-1);                    //array of the curves
 922       TColStd_Array1OfReal tabtolvertex(0,nb_curve-1); //(0,nb_curve-2);  //array of the tolerances
 923
 924       Standard_Integer i;
 925
 926       if (nb_curve > 1)
 927       {
 928         for (i = 1; i <= nb_curve; i++)
 929         {
 930           if (CurveSeq(i)->IsInstance(STANDARD_TYPE(Geom_TrimmedCurve)))
 931             CurveSeq(i) = (*((Handle(Geom_TrimmedCurve)*)&(CurveSeq(i))))->BasisCurve();
 932
 933           Handle(Geom_TrimmedCurve) aTrCurve = new Geom_TrimmedCurve(CurveSeq(i), FparSeq(i), LparSeq(i));
 934           tab(i-1) = GeomConvert::CurveToBSplineCurve(aTrCurve);
 935           tab(i-1)->Transform(LocSeq(i).Location().Transformation());
 936           GeomConvert::C0BSplineToC1BSplineCurve(tab(i-1), Precision::Confusion());
 937           if (LocSeq(i).Orientation() == TopAbs_REVERSED)
 938             tab(i-1)->Reverse();
 939
 940           //Temporary
 941           //char* name = new char[100];
 942           //sprintf(name, "c%d", i);
 943           //DrawTrSurf::Set(name, tab(i-1));
 944
 945           if (i > 1)
 946             tabtolvertex(i-2) = TolSeq(i-1);
 947         } // end for (i = 1; i <= nb_curve; i++)
 948         tabtolvertex(nb_curve-1) = TolSeq(TolSeq.Length());
 949
 950         Standard_Boolean closed_flag = Standard_False;
 951         Standard_Real closed_tolerance = 0.;
 952         if (FirstVertex.IsSame(LastVertex) &&
 953             GeomLProp::Continuity(tab(0), tab(nb_curve-1),
 954                                   tab(0)->FirstParameter(),
 955                                   tab(nb_curve-1)->LastParameter(),
 956                                   Standard_False, Standard_False, LinTol, AngTol) >= GeomAbs_G1)
 957         {
 958           closed_flag = Standard_True ;
 959           closed_tolerance = BRep_Tool::Tolerance(FirstVertex);
 960         }
 961
 962         Handle(TColGeom_HArray1OfBSplineCurve)  concatcurve;     //array of the concatenated curves
 963         Handle(TColStd_HArray1OfInteger)        ArrayOfIndices;  //array of the remining Vertex
 964         GeomConvert::ConcatC1(tab,
 965                               tabtolvertex,
 966                               ArrayOfIndices,
 967                               concatcurve,
 968                               closed_flag,
 969                               closed_tolerance);   //C1 concatenation
 970
 971         if (concatcurve->Length() > 1)
 972         {
 973           GeomConvert_CompCurveToBSplineCurve Concat(concatcurve->Value(concatcurve->Lower()));
 974
 975           for (i = concatcurve->Lower()+1; i <= concatcurve->Upper(); i++)
 976             Concat.Add( concatcurve->Value(i), LinTol, Standard_True );
 977
 978           concatcurve->SetValue(concatcurve->Lower(), Concat.BSplineCurve());
 979         }
 980         // rnc : prevents the driver from building an edge without C1 continuity
 981         if (concatcurve->Value(concatcurve->Lower())->Continuity()==GeomAbs_C0){
 982           Standard_ConstructionError::Raise("Construction aborted : The given Wire has sharp bends between some Edges, no valid Edge can be built");
 983         }
 984         ResEdge = BRepLib_MakeEdge(concatcurve->Value(concatcurve->Lower()),
 985                                    FirstVtx_final, LastVtx_final,
 986                                    concatcurve->Value(concatcurve->Lower())->FirstParameter(),
 987                                    concatcurve->Value(concatcurve->Lower())->LastParameter());
 988       }
 989       else
 990       {
 991         if (CurveSeq(1)->IsInstance(STANDARD_TYPE(Geom_TrimmedCurve)))
 992           CurveSeq(1) = (*((Handle(Geom_TrimmedCurve)*)&(CurveSeq(1))))->BasisCurve();
 993
 994         CurveSeq(1)->Transform(LocSeq(1).Location().Transformation());
 995         ResEdge = BRepLib_MakeEdge(CurveSeq(1),
 996                                    FirstVtx_final, LastVtx_final,
 997                                    FparSeq(1), LparSeq(1));
 998       }
 999     }
1000
1001     if (FinalReverse)
1002       ResEdge.Reverse();
1003
1004     return ResEdge;
1005 }
1006
1007 //=============================================================================
1008 /*!
1009  * \brief Returns an isoline for a face.
1010  */
1011 //=============================================================================
1012
1013 TopoDS_Shape GEOMImpl_ShapeDriver::MakeIsoline
1014                             (const TopoDS_Face &theFace,
1015                              const bool         IsUIso,
1016                              const double       theParameter) const
1017 {
1018   TopoDS_Shape          aResult;
1019   GEOMUtils_Hatcher     aHatcher(theFace);
1020   const GeomAbs_IsoType aType = (IsUIso ? GeomAbs_IsoU : GeomAbs_IsoV);
1021
1022   aHatcher.Init(aType, theParameter);
1023   aHatcher.Perform();
1024
1025   if (!aHatcher.IsDone()) {
1026     Standard_ConstructionError::Raise("MakeIsoline : Hatcher failure");
1027   }
1028
1029   const Handle(TColStd_HArray1OfInteger) &anIndices =
1030     (IsUIso ? aHatcher.GetUIndices() : aHatcher.GetVIndices());
1031
1032   if (anIndices.IsNull()) {
1033     Standard_ConstructionError::Raise("MakeIsoline : Null hatching indices");
1034   }
1035
1036   const Standard_Integer anIsoInd = anIndices->Lower();
1037   const Standard_Integer aHatchingIndex = anIndices->Value(anIsoInd);
1038
1039   if (aHatchingIndex == 0) {
1040     Standard_ConstructionError::Raise("MakeIsoline : Invalid hatching index");
1041   }
1042
1043   const Standard_Integer aNbDomains =
1044     aHatcher.GetNbDomains(aHatchingIndex);
1045
1046   if (aNbDomains < 0) {
1047     Standard_ConstructionError::Raise("MakeIsoline : Invalid number of domains");
1048   }
1049
1050   // The hatching is performed successfully. Create the 3d Curve.
1051   Handle(Geom_Surface) aSurface   = BRep_Tool::Surface(theFace);
1052   Handle(Geom_Curve)   anIsoCurve = (IsUIso ?
1053     aSurface->UIso(theParameter) : aSurface->VIso(theParameter));
1054   Handle(Geom2d_Curve) aPIsoCurve =
1055     aHatcher.GetHatching(aHatchingIndex);
1056   const Standard_Real  aTol = Precision::Confusion();
1057   Standard_Integer     anIDom = 1;
1058   Standard_Real        aV1;
1059   Standard_Real        aV2;
1060   BRep_Builder         aBuilder;
1061   Standard_Integer     aNbEdges = 0;
1062
1063   for (; anIDom <= aNbDomains; anIDom++) {
1064     if (aHatcher.GetDomain(aHatchingIndex, anIDom, aV1, aV2)) {
1065       // Check first and last parameters.
1066       if (!aHatcher.IsDomainInfinite(aHatchingIndex, anIDom)) {
1067         // Create an edge.
1068         TopoDS_Edge anEdge = BRepBuilderAPI_MakeEdge(anIsoCurve, aV1, aV2);
1069
1070         // Update it with a parametric curve on face.
1071         aBuilder.UpdateEdge(anEdge, aPIsoCurve, theFace, aTol);
1072         aNbEdges++;
1073
1074         if (aNbEdges > 1) {
1075           // Result is a compond.
1076           if (aNbEdges == 2) {
1077             // Create a new compound.
1078             TopoDS_Compound aCompound;
1079
1080             aBuilder.MakeCompound(aCompound);
1081             aBuilder.Add(aCompound, aResult);
1082             aResult = aCompound;
1083           }
1084
1085           // Add an edge to the compound.
1086           aBuilder.Add(aResult, anEdge);
1087         } else {
1088           // Result is the edge.
1089           aResult = anEdge;
1090         }
1091       }
1092     }
1093   }
1094
1095   if (aNbEdges == 0) {
1096     Standard_ConstructionError::Raise("MakeIsoline : Empty result");
1097   }
1098
1099   return aResult;
1100 }
1101
1102 //================================================================================
1103 /*!
1104  * \brief Returns a name of creation operation and names and values of creation parameters
1105  */
1106 //================================================================================
1107
1108 bool GEOMImpl_ShapeDriver::
1109 GetCreationInformation(std::string&             theOperationName,
1110                        std::vector<GEOM_Param>& theParams)
1111 {
1112   if (Label().IsNull()) return 0;
1113   Handle(GEOM_Function) function = GEOM_Function::GetFunction(Label());
1114
1115   GEOMImpl_IShapes aCI( function );
1116   Standard_Integer aType = function->GetType();
1117
1118   switch ( aType ) {
1119   case WIRE_EDGES:
1120     theOperationName = "WIRE";
1121     AddParam( theParams, "Wires/edges", aCI.GetShapes() );
1122     AddParam( theParams, "Tolerance", aCI.GetTolerance() );
1123     break;
1124   case FACE_WIRE:
1125     theOperationName = "FACE";
1126     AddParam( theParams, "Wire/edge", aCI.GetBase() );
1127     AddParam( theParams, "Is planar wanted", aCI.GetIsPlanar() );
1128     break;
1129   case FACE_WIRES:
1130     theOperationName = "FACE";
1131     AddParam( theParams, "Wires/edges", aCI.GetShapes() );
1132     AddParam( theParams, "Is planar wanted", aCI.GetIsPlanar() );
1133     break;
1134   case SHELL_FACES:
1135     theOperationName = "SHELL";
1136     AddParam( theParams, "Objects", aCI.GetShapes() );
1137     break;
1138   case SOLID_SHELL:
1139   case SOLID_SHELLS:
1140     theOperationName = "SOLID";
1141     AddParam( theParams, "Objects", aCI.GetShapes() );
1142     break;
1143   case COMPOUND_SHAPES:
1144     theOperationName = "COMPOUND";
1145     AddParam( theParams, "Objects", aCI.GetShapes() );
1146     break;
1147   case EDGE_WIRE:
1148     theOperationName = "EDGE";
1149     AddParam( theParams, "Wire", aCI.GetBase() );
1150     AddParam( theParams, "Linear Tolerance", aCI.GetTolerance() );
1151     AddParam( theParams, "Angular Tolerance", aCI.GetAngularTolerance() );
1152     break;
1153   case EDGE_CURVE_LENGTH:
1154     theOperationName = "EDGE";
1155     {
1156       GEOMImpl_IVector aCI( function );
1157       AddParam( theParams, "Edge", aCI.GetPoint1() );
1158       AddParam( theParams, "Start point", aCI.GetPoint2() );
1159       AddParam( theParams, "Length", aCI.GetParameter() );
1160     }
1161     break;
1162   case SHAPES_ON_SHAPE:
1163   {
1164     theOperationName = "GetShapesOnShapeAsCompound";
1165     Handle(TColStd_HSequenceOfTransient) shapes = aCI.GetShapes();
1166     if ( !shapes.IsNull() && shapes->Length() > 0 )
1167       AddParam( theParams, "Check shape", shapes->Value(1) );
1168     if ( !shapes.IsNull() && shapes->Length() > 1 )
1169       AddParam( theParams, "Shape", shapes->Value(2) );
1170     AddParam( theParams, "Shape type", TopAbs_ShapeEnum( aCI.GetSubShapeType() ));
1171     AddParam( theParams, "State", TopAbs_State((int) aCI.GetTolerance() ));
1172     break;
1173   }
1174   case SHAPE_ISOLINE:
1175   {
1176     GEOMImpl_IIsoline aII (function);
1177
1178     theOperationName = "ISOLINE";
1179     AddParam(theParams, "Face", aII.GetFace());
1180     AddParam(theParams, "Isoline type", (aII.GetIsUIso() ? "U" : "V"));
1181     AddParam(theParams, "Parameter", aII.GetParameter());
1182     break;
1183   }
1184   default:
1185     return false;
1186   }
1187
1188   return true;
1189 }
1190
1191 IMPLEMENT_STANDARD_HANDLE (GEOMImpl_ShapeDriver,GEOM_BaseDriver);
1192 IMPLEMENT_STANDARD_RTTIEXT (GEOMImpl_ShapeDriver,GEOM_BaseDriver);
1193
1194 //modified by NIZNHY-PKV Wed Dec 28 13:48:31 2011f
1195 #include <TopoDS_Iterator.hxx>
1196 #include <TopTools_HSequenceOfShape.hxx>
1197 #include <ShapeAnalysis_FreeBounds.hxx>
1198 #include <TopTools_MapOfShape.hxx>
1199 #include <TopTools_MapOfOrientedShape.hxx>
1200 #include <BRep_Builder.hxx>
1201 #include <TopoDS_Wire.hxx>
1202
1203 //=======================================================================
1204 //function : KeepEdgesOrder
1205 //purpose  :
1206 //=======================================================================
1207 /*
1208 void KeepEdgesOrder(const Handle(TopTools_HSequenceOfShape)& aEdges,
1209                     const Handle(TopTools_HSequenceOfShape)& aWires)
1210 {
1211   Standard_Integer aNbWires, aNbEdges;
1212   //
1213   if (aEdges.IsNull()) {
1214     return;
1215   }
1216   //
1217   if (aWires.IsNull()) {
1218     return;
1219   }
1220   //
1221   aNbEdges=aEdges->Length();
1222   aNbWires=aWires->Length();
1223   if (!aNbEdges || !aNbWires) {
1224     return;
1225   }
1226   //-----
1227   Standard_Boolean bClosed;
1228   Standard_Integer i, j;
1229   TopoDS_Wire aWy;
1230   TopoDS_Iterator aIt;
1231   BRep_Builder aBB;
1232   TopTools_MapOfOrientedShape aMEx;
1233   //
1234   for (i=1; i<=aNbWires; ++i) {
1235     const TopoDS_Shape& aWx=aWires->Value(i);
1236     //
1237     aMEx.Clear();
1238     aIt.Initialize (aWx);
1239     for (; aIt.More(); aIt.Next()) {
1240       const TopoDS_Shape& aEx=aIt.Value();
1241       aMEx.Add(aEx);
1242     }
1243     // aWy
1244     aBB.MakeWire (aWy);
1245     for (j=1; j<=aNbEdges; ++j) {
1246       const TopoDS_Shape& aE=aEdges->Value(j);
1247       if (aMEx.Contains(aE)) {
1248         aBB.Add(aWy, aE);
1249       }
1250     }
1251     //
1252     bClosed=aWx.Closed();
1253     aWy.Closed(bClosed);
1254     //
1255     aWires->Append(aWy);
1256   }// for (i=1; i<=aNbWires; ++i) {
1257   //
1258   aWires->Remove(1, aNbWires);
1259 }
1260 */
1261 //modified by NIZNHY-PKV Wed Dec 28 13:48:34 2011t