[occt.git] / src / DNaming / DNaming_PrismDriver.cxx

// Created on: 2009-06-16
// Created by: Sergey ZARITCHNY
// Copyright (c) 2009-2014 OPEN CASCADE SAS
//
// This file is part of Open CASCADE Technology software library.
//
// This library is free software; you can redistribute it and/or modify it under
// the terms of the GNU Lesser General Public License version 2.1 as published
// by the Free Software Foundation, with special exception defined in the file
// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
// distribution for complete text of the license and disclaimer of any warranty.
//
// Alternatively, this file may be used under the terms of Open CASCADE
// commercial license or contractual agreement.


#include <BRep_Tool.hxx>
#include <BRepBuilderAPI_MakeFace.hxx>
#include <BRepCheck_Analyzer.hxx>
#include <BRepCheck_Shell.hxx>
#include <BRepCheck_Wire.hxx>
#include <BRepGProp.hxx>
#include <BRepPrimAPI_MakeCylinder.hxx>
#include <BRepPrimAPI_MakePrism.hxx>
#include <DNaming.hxx>
#include <DNaming_PrismDriver.hxx>
#include <Geom_Line.hxx>
#include <gp_Ax2.hxx>
#include <gp_Dir.hxx>
#include <gp_Pnt.hxx>
#include <gp_Vec.hxx>
#include <GProp_GProps.hxx>
#include <ModelDefinitions.hxx>
#include <Precision.hxx>
#include <Standard_GUID.hxx>
#include <Standard_Real.hxx>
#include <Standard_Type.hxx>
#include <TDataStd_Integer.hxx>
#include <TDataStd_Real.hxx>
#include <TDF_Label.hxx>
#include <TDF_TagSource.hxx>
#include <TFunction_Function.hxx>
#include <TFunction_Logbook.hxx>
#include <TNaming.hxx>
#include <TNaming_Builder.hxx>
#include <TNaming_NamedShape.hxx>
#include <TopExp_Explorer.hxx>
#include <TopLoc_Location.hxx>
#include <TopoDS.hxx>
#include <TopoDS_Edge.hxx>
#include <TopoDS_Shape.hxx>
#include <TopoDS_Solid.hxx>
#include <TopoDS_Wire.hxx>
#include <TopTools_DataMapOfShapeShape.hxx>

IMPLEMENT_STANDARD_RTTIEXT(DNaming_PrismDriver,TFunction_Driver)

// OCC
// OCAF
//=======================================================================
//function : DNaming_PrismDriver
//purpose  : Constructor
//=======================================================================
DNaming_PrismDriver::DNaming_PrismDriver()
{}

//=======================================================================
//function : Validate
//purpose  : Validates labels of a function in <theLog>.
//=======================================================================
void DNaming_PrismDriver::Validate(Handle(TFunction_Logbook)&) const
{}

//=======================================================================
//function : MustExecute
//purpose  : Analyses in <theLog> if the loaded function must be executed
//=======================================================================
Standard_Boolean DNaming_PrismDriver::MustExecute(const Handle(TFunction_Logbook)&) const
{
  return Standard_True;
}

#ifdef OCCT_DEBUG
#include <BRepTools.hxx>
static void Write(const TopoDS_Shape& shape,
		      const Standard_CString filename) 
{
  std::ofstream save;
  save.open(filename);
  save << "DBRep_DrawableShape" << std::endl << std::endl;
  if(!shape.IsNull()) BRepTools::Write(shape, save);
  save.close();
}
#endif
//=======================================================================
//function : Execute
//purpose  : Executes the function 
//=======================================================================
Standard_Integer DNaming_PrismDriver::Execute(Handle(TFunction_Logbook)& theLog) const {
  Handle(TFunction_Function) aFunction;
  Label().FindAttribute(TFunction_Function::GetID(), aFunction);
  if(aFunction.IsNull()) return -1;

  // Save location
  Handle(TNaming_NamedShape) aPrevPrism = DNaming::GetFunctionResult(aFunction);
  TopLoc_Location aLocation;
  if (!aPrevPrism.IsNull() && !aPrevPrism->IsEmpty()) {
    aLocation = aPrevPrism->Get().Location();
  }

  //Basis for IPrism
  Handle(TDataStd_UAttribute) aBasObject = DNaming::GetObjectArg(aFunction,PRISM_BASIS);
  Handle(TNaming_NamedShape) aBasisNS = DNaming::GetObjectValue(aBasObject);
  if(aBasisNS.IsNull() || aBasisNS->IsEmpty()) {
    aFunction->SetFailure(WRONG_ARGUMENT);
    return -1;
  }
 
  const TopoDS_Shape& aBasis = aBasisNS->Get(); 
  TopoDS_Shape aBASIS;
  if(aBasis.ShapeType() == TopAbs_WIRE) {
    Handle(BRepCheck_Wire) aCheck = new BRepCheck_Wire(TopoDS::Wire(aBasis));
    if(aCheck->Closed(Standard_True) == BRepCheck_NoError) {
      BRepBuilderAPI_MakeFace aMaker (TopoDS::Wire(aBasis), Standard_True); //Makes planar face
      if(aMaker.IsDone()) 
	aBASIS = aMaker.Face();//aMaker.Face();           
    }
  } else if(aBasis.ShapeType() == TopAbs_FACE)
    aBASIS = aBasis;
  if(aBASIS.IsNull()) {
    aFunction->SetFailure(WRONG_ARGUMENT);
    return -1;
  }


  Handle(TNaming_NamedShape) aContextOfBasis;
  Standard_Boolean anIsAttachment = Standard_False;
  if(DNaming::IsAttachment(aBasObject)) {
    aContextOfBasis = DNaming::GetAttachmentsContext(aBasObject); // a Context of Prism basis
    if(aContextOfBasis.IsNull() || aContextOfBasis->IsEmpty()) {
      aFunction->SetFailure(WRONG_ARGUMENT);
      return -1;
    }
    anIsAttachment = Standard_True;
  }

// Height
  Standard_Real aHeight = DNaming::GetReal(aFunction,PRISM_HEIGHT)->Get();
  if(aHeight <= Precision::Confusion()) {
    aFunction->SetFailure(WRONG_ARGUMENT);
    return -1;
  }

  // Direction
  gp_Ax1 anAxis;  
  DNaming::ComputeSweepDir(aBasis, anAxis);
    
  // Reverse
  Standard_Integer aRev = DNaming::GetInteger(aFunction,PRISM_DIR)->Get();
  if(aRev) anAxis.Reverse();

  // Calculate Vec - direction of extrusion
  gp_Vec aVEC(anAxis.Direction());
  aVEC = aVEC*aHeight;
  
  BRepPrimAPI_MakePrism aMakePrism(aBASIS, aVEC, Standard_True);  
  aMakePrism.Build();
  if (!aMakePrism.IsDone()) {
    aFunction->SetFailure(ALGO_FAILED);
    return -1;
  }
  
  const TopoDS_Shape& aResult = aMakePrism.Shape();
  BRepCheck_Analyzer aCheckAnalyzer(aResult);
  if (!aCheckAnalyzer.IsValid(aResult)) {
    aFunction->SetFailure(RESULT_NOT_VALID);
#ifdef OCCT_DEBUG
    Standard_CString aFileName = "PrismResult.brep";
    Write(aResult, aFileName);
#endif
    return -1;
  }
  Standard_Boolean aVol = Standard_False;

  if(aResult.ShapeType() == TopAbs_SOLID) aVol = Standard_True;
  else if(aResult.ShapeType() == TopAbs_SHELL) {
    Handle(BRepCheck_Shell) aCheck = new BRepCheck_Shell(TopoDS::Shell(aResult));
    if(aCheck->Closed() == BRepCheck_NoError) 
      aVol = Standard_True;
  } 

  if(aVol) {
    GProp_GProps aGProp;
    BRepGProp::VolumeProperties(aResult, aGProp);
    if(aGProp.Mass() <= Precision::Confusion()) {
      aFunction->SetFailure(RESULT_NOT_VALID);
      return -1;
    }
  }

  // Naming  
  if(anIsAttachment)
    LoadNamingDS(RESPOSITION(aFunction), aMakePrism, aBASIS, aContextOfBasis->Get());
  else
    LoadNamingDS(RESPOSITION(aFunction), aMakePrism, aBASIS, aBASIS);

  // restore location
  if(!aLocation.IsIdentity()) 
    TNaming::Displace(RESPOSITION(aFunction), aLocation, Standard_True);

  theLog->SetValid(RESPOSITION(aFunction),Standard_True);  
  aFunction->SetFailure(DONE);
  return 0;
}

//=======================================================================
//function : LoadAndName
//purpose  : 
//=======================================================================
void DNaming_PrismDriver::LoadNamingDS (const TDF_Label& theResultLabel, 
					   BRepPrimAPI_MakePrism& MS,
					   const TopoDS_Shape& Basis,
					   const TopoDS_Shape& Context
					   ) const 
{

  TopTools_DataMapOfShapeShape SubShapes;
  for (TopExp_Explorer Exp(MS.Shape(),TopAbs_FACE); Exp.More(); Exp.Next()) {
    SubShapes.Bind(Exp.Current(),Exp.Current());
  }
  
  Handle(TDF_TagSource) Tagger = TDF_TagSource::Set(theResultLabel);
  if (Tagger.IsNull()) return;
  Tagger->Set(0);

  TNaming_Builder Builder (theResultLabel);
  if(Basis.IsEqual(Context))
    Builder.Generated(MS.Shape());
  else
    Builder.Generated(Context, MS.Shape());
 
  //Insert lateral face : Face from Edge
  TNaming_Builder  LateralFaceBuilder(theResultLabel.NewChild());   
  DNaming::LoadAndOrientGeneratedShapes(MS, Basis, TopAbs_EDGE, LateralFaceBuilder, SubShapes);

  Standard_Boolean makeTopBottom = Standard_True;
  if (Basis.ShapeType() == TopAbs_COMPOUND) {
    TopoDS_Iterator itr(Basis);
    if (itr.More() && itr.Value().ShapeType() == TopAbs_WIRE) makeTopBottom = Standard_False;
  } else if (Basis.ShapeType() == TopAbs_WIRE) {
    makeTopBottom = Standard_False;
  }
  if (makeTopBottom) {
    //Insert bottom face
    TopoDS_Shape BottomFace = MS.FirstShape();
    if (!BottomFace.IsNull()) {
      if (BottomFace.ShapeType() != TopAbs_COMPOUND) {
	TNaming_Builder BottomBuilder(theResultLabel.NewChild());  //2
	if (SubShapes.IsBound(BottomFace)) {
	  BottomFace = SubShapes(BottomFace);
	}
	BottomBuilder.Generated(BottomFace);
      } else {
	TopoDS_Iterator itr(BottomFace);
	for (; itr.More(); itr.Next()) {
	  TNaming_Builder BottomBuilder(theResultLabel.NewChild());  
	  BottomBuilder.Generated(itr.Value());
	}
      }
    }
    
    //Insert top face
    TopoDS_Shape TopFace = MS.LastShape();
    if (!TopFace.IsNull()) {
      if (TopFace.ShapeType() != TopAbs_COMPOUND) {
	TNaming_Builder TopBuilder(theResultLabel.NewChild()); //3
	if (SubShapes.IsBound(TopFace)) {
	  TopFace = SubShapes(TopFace);
	}
	TopBuilder.Generated(TopFace);
      } else {
	TopoDS_Iterator itr(TopFace);
	for (; itr.More(); itr.Next()) {
	  TNaming_Builder TopBuilder(theResultLabel.NewChild());  
	  TopBuilder.Generated(itr.Value());
	}
      }
    }
  }   
}
Commit	Line	Data
b311480e	1	// Created on: 2009-06-16
b311480e	2	// Created by: Sergey ZARITCHNY
973c2be1	3	// Copyright (c) 2009-2014 OPEN CASCADE SAS
b311480e	4	//
973c2be1	5	// This file is part of Open CASCADE Technology software library.
b311480e	6	//
d5f74e42	7	// This library is free software; you can redistribute it and/or modify it under
d5f74e42	8	// the terms of the GNU Lesser General Public License version 2.1 as published
973c2be1	9	// by the Free Software Foundation, with special exception defined in the file
	10	// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
	11	// distribution for complete text of the license and disclaimer of any warranty.
b311480e	12	//
973c2be1	13	// Alternatively, this file may be used under the terms of Open CASCADE
973c2be1	14	// commercial license or contractual agreement.
7fd59977	15
7fd59977	16
7fd59977	17	#include <BRep_Tool.hxx>
42cf5bc1	18	#include <BRepBuilderAPI_MakeFace.hxx>
7fd59977	19	#include <BRepCheck_Analyzer.hxx>
42cf5bc1	20	#include <BRepCheck_Shell.hxx>
	21	#include <BRepCheck_Wire.hxx>
	22	#include <BRepGProp.hxx>
	23	#include <BRepPrimAPI_MakeCylinder.hxx>
7fd59977	24	#include <BRepPrimAPI_MakePrism.hxx>
42cf5bc1	25	#include <DNaming.hxx>
	26	#include <DNaming_PrismDriver.hxx>
	27	#include <Geom_Line.hxx>
	28	#include <gp_Ax2.hxx>
	29	#include <gp_Dir.hxx>
	30	#include <gp_Pnt.hxx>
	31	#include <gp_Vec.hxx>
7fd59977	32	#include <GProp_GProps.hxx>
42cf5bc1	33	#include <ModelDefinitions.hxx>
7fd59977	34	#include <Precision.hxx>
7fd59977	35	#include <Standard_GUID.hxx>
7fd59977	36	#include <Standard_Real.hxx>
42cf5bc1	37	#include <Standard_Type.hxx>
7fd59977	38	#include <TDataStd_Integer.hxx>
7fd59977	39	#include <TDataStd_Real.hxx>
42cf5bc1	40	#include <TDF_Label.hxx>
	41	#include <TDF_TagSource.hxx>
	42	#include <TFunction_Function.hxx>
	43	#include <TFunction_Logbook.hxx>
7fd59977	44	#include <TNaming.hxx>
	45	#include <TNaming_Builder.hxx>
	46	#include <TNaming_NamedShape.hxx>
42cf5bc1	47	#include <TopExp_Explorer.hxx>
	48	#include <TopLoc_Location.hxx>
	49	#include <TopoDS.hxx>
	50	#include <TopoDS_Edge.hxx>
	51	#include <TopoDS_Shape.hxx>
	52	#include <TopoDS_Solid.hxx>
	53	#include <TopoDS_Wire.hxx>
	54	#include <TopTools_DataMapOfShapeShape.hxx>
7fd59977	55
92efcf78	56	IMPLEMENT_STANDARD_RTTIEXT(DNaming_PrismDriver,TFunction_Driver)
92efcf78	57
42cf5bc1	58	// OCC
42cf5bc1	59	// OCAF
7fd59977	60	//=======================================================================
	61	//function : DNaming_PrismDriver
	62	//purpose : Constructor
	63	//=======================================================================
	64	DNaming_PrismDriver::DNaming_PrismDriver()
	65	{}
	66
	67	//=======================================================================
	68	//function : Validate
	69	//purpose : Validates labels of a function in <theLog>.
	70	//=======================================================================
f486f64d	71	void DNaming_PrismDriver::Validate(Handle(TFunction_Logbook)&) const
7fd59977	72	{}
	73
	74	//=======================================================================
	75	//function : MustExecute
	76	//purpose : Analyses in <theLog> if the loaded function must be executed
	77	//=======================================================================
f486f64d	78	Standard_Boolean DNaming_PrismDriver::MustExecute(const Handle(TFunction_Logbook)&) const
7fd59977	79	{
	80	return Standard_True;
	81	}
	82
0797d9d3	83	#ifdef OCCT_DEBUG
7fd59977	84	#include <BRepTools.hxx>
	85	static void Write(const TopoDS_Shape& shape,
	86	const Standard_CString filename)
	87	{
04232180	88	std::ofstream save;
7fd59977	89	save.open(filename);
04232180	90	save << "DBRep_DrawableShape" << std::endl << std::endl;
7fd59977	91	if(!shape.IsNull()) BRepTools::Write(shape, save);
	92	save.close();
	93	}
	94	#endif
	95	//=======================================================================
	96	//function : Execute
	97	//purpose : Executes the function
	98	//=======================================================================
f486f64d	99	Standard_Integer DNaming_PrismDriver::Execute(Handle(TFunction_Logbook)& theLog) const {
7fd59977	100	Handle(TFunction_Function) aFunction;
	101	Label().FindAttribute(TFunction_Function::GetID(), aFunction);
	102	if(aFunction.IsNull()) return -1;
	103
	104	// Save location
	105	Handle(TNaming_NamedShape) aPrevPrism = DNaming::GetFunctionResult(aFunction);
	106	TopLoc_Location aLocation;
	107	if (!aPrevPrism.IsNull() && !aPrevPrism->IsEmpty()) {
	108	aLocation = aPrevPrism->Get().Location();
	109	}
	110
	111	//Basis for IPrism
	112	Handle(TDataStd_UAttribute) aBasObject = DNaming::GetObjectArg(aFunction,PRISM_BASIS);
	113	Handle(TNaming_NamedShape) aBasisNS = DNaming::GetObjectValue(aBasObject);
	114	if(aBasisNS.IsNull() \|\| aBasisNS->IsEmpty()) {
	115	aFunction->SetFailure(WRONG_ARGUMENT);
	116	return -1;
	117	}
	118
	119	const TopoDS_Shape& aBasis = aBasisNS->Get();
	120	TopoDS_Shape aBASIS;
	121	if(aBasis.ShapeType() == TopAbs_WIRE) {
	122	Handle(BRepCheck_Wire) aCheck = new BRepCheck_Wire(TopoDS::Wire(aBasis));
	123	if(aCheck->Closed(Standard_True) == BRepCheck_NoError) {
	124	BRepBuilderAPI_MakeFace aMaker (TopoDS::Wire(aBasis), Standard_True); //Makes planar face
	125	if(aMaker.IsDone())
	126	aBASIS = aMaker.Face();//aMaker.Face();
	127	}
	128	} else if(aBasis.ShapeType() == TopAbs_FACE)
	129	aBASIS = aBasis;
	130	if(aBASIS.IsNull()) {
	131	aFunction->SetFailure(WRONG_ARGUMENT);
	132	return -1;
	133	}
	134
	135
	136	Handle(TNaming_NamedShape) aContextOfBasis;
	137	Standard_Boolean anIsAttachment = Standard_False;
	138	if(DNaming::IsAttachment(aBasObject)) {
	139	aContextOfBasis = DNaming::GetAttachmentsContext(aBasObject); // a Context of Prism basis
	140	if(aContextOfBasis.IsNull() \|\| aContextOfBasis->IsEmpty()) {
	141	aFunction->SetFailure(WRONG_ARGUMENT);
	142	return -1;
	143	}
	144	anIsAttachment = Standard_True;
	145	}
	146
	147	// Height
	148	Standard_Real aHeight = DNaming::GetReal(aFunction,PRISM_HEIGHT)->Get();
	149	if(aHeight <= Precision::Confusion()) {
	150	aFunction->SetFailure(WRONG_ARGUMENT);
	151	return -1;
	152	}
	153
	154	// Direction
	155	gp_Ax1 anAxis;
	156	DNaming::ComputeSweepDir(aBasis, anAxis);
	157
	158	// Reverse
	159	Standard_Integer aRev = DNaming::GetInteger(aFunction,PRISM_DIR)->Get();
	160	if(aRev) anAxis.Reverse();
	161
	162	// Calculate Vec - direction of extrusion
	163	gp_Vec aVEC(anAxis.Direction());
164	aVEC = aVEC*aHeight;
165
166	BRepPrimAPI_MakePrism aMakePrism(aBASIS, aVEC, Standard_True);
167	aMakePrism.Build();
168	if (!aMakePrism.IsDone()) {
169	aFunction->SetFailure(ALGO_FAILED);
170	return -1;
171	}
172
173	const TopoDS_Shape& aResult = aMakePrism.Shape();
51740958	174	BRepCheck_Analyzer aCheckAnalyzer(aResult);
51740958	175	if (!aCheckAnalyzer.IsValid(aResult)) {
7fd59977	176	aFunction->SetFailure(RESULT_NOT_VALID);
0797d9d3	177	#ifdef OCCT_DEBUG
7fd59977	178	Standard_CString aFileName = "PrismResult.brep";
	179	Write(aResult, aFileName);
	180	#endif
	181	return -1;
	182	}
	183	Standard_Boolean aVol = Standard_False;
	184
	185	if(aResult.ShapeType() == TopAbs_SOLID) aVol = Standard_True;
	186	else if(aResult.ShapeType() == TopAbs_SHELL) {
	187	Handle(BRepCheck_Shell) aCheck = new BRepCheck_Shell(TopoDS::Shell(aResult));
	188	if(aCheck->Closed() == BRepCheck_NoError)
	189	aVol = Standard_True;
	190	}
	191
	192	if(aVol) {
	193	GProp_GProps aGProp;
	194	BRepGProp::VolumeProperties(aResult, aGProp);
	195	if(aGProp.Mass() <= Precision::Confusion()) {
	196	aFunction->SetFailure(RESULT_NOT_VALID);
	197	return -1;
	198	}
	199	}
	200
	201	// Naming
	202	if(anIsAttachment)
	203	LoadNamingDS(RESPOSITION(aFunction), aMakePrism, aBASIS, aContextOfBasis->Get());
	204	else
	205	LoadNamingDS(RESPOSITION(aFunction), aMakePrism, aBASIS, aBASIS);
	206
	207	// restore location
	208	if(!aLocation.IsIdentity())
	209	TNaming::Displace(RESPOSITION(aFunction), aLocation, Standard_True);
	210
f486f64d	211	theLog->SetValid(RESPOSITION(aFunction),Standard_True);
7fd59977	212	aFunction->SetFailure(DONE);
	213	return 0;
	214	}
	215
	216	//=======================================================================
	217	//function : LoadAndName
	218	//purpose :
	219	//=======================================================================
	220	void DNaming_PrismDriver::LoadNamingDS (const TDF_Label& theResultLabel,
	221	BRepPrimAPI_MakePrism& MS,
	222	const TopoDS_Shape& Basis,
	223	const TopoDS_Shape& Context
	224	) const
	225	{
	226
	227	TopTools_DataMapOfShapeShape SubShapes;
	228	for (TopExp_Explorer Exp(MS.Shape(),TopAbs_FACE); Exp.More(); Exp.Next()) {
	229	SubShapes.Bind(Exp.Current(),Exp.Current());
	230	}
	231
	232	Handle(TDF_TagSource) Tagger = TDF_TagSource::Set(theResultLabel);
	233	if (Tagger.IsNull()) return;
	234	Tagger->Set(0);
	235
	236	TNaming_Builder Builder (theResultLabel);
	237	if(Basis.IsEqual(Context))
	238	Builder.Generated(MS.Shape());
	239	else
	240	Builder.Generated(Context, MS.Shape());
	241
	242	//Insert lateral face : Face from Edge
	243	TNaming_Builder LateralFaceBuilder(theResultLabel.NewChild());
	244	DNaming::LoadAndOrientGeneratedShapes(MS, Basis, TopAbs_EDGE, LateralFaceBuilder, SubShapes);
	245
	246	Standard_Boolean makeTopBottom = Standard_True;
	247	if (Basis.ShapeType() == TopAbs_COMPOUND) {
	248	TopoDS_Iterator itr(Basis);
	249	if (itr.More() && itr.Value().ShapeType() == TopAbs_WIRE) makeTopBottom = Standard_False;
	250	} else if (Basis.ShapeType() == TopAbs_WIRE) {
	251	makeTopBottom = Standard_False;
	252	}
	253	if (makeTopBottom) {
	254	//Insert bottom face
	255	TopoDS_Shape BottomFace = MS.FirstShape();
	256	if (!BottomFace.IsNull()) {
	257	if (BottomFace.ShapeType() != TopAbs_COMPOUND) {
	258	TNaming_Builder BottomBuilder(theResultLabel.NewChild()); //2
	259	if (SubShapes.IsBound(BottomFace)) {
	260	BottomFace = SubShapes(BottomFace);
	261	}
	262	BottomBuilder.Generated(BottomFace);
	263	} else {
	264	TopoDS_Iterator itr(BottomFace);
	265	for (; itr.More(); itr.Next()) {
	266	TNaming_Builder BottomBuilder(theResultLabel.NewChild());
	267	BottomBuilder.Generated(itr.Value());
	268	}
	269	}
	270	}
	271
	272	//Insert top face
	273	TopoDS_Shape TopFace = MS.LastShape();
	274	if (!TopFace.IsNull()) {
	275	if (TopFace.ShapeType() != TopAbs_COMPOUND) {
276	TNaming_Builder TopBuilder(theResultLabel.NewChild()); //3
277	if (SubShapes.IsBound(TopFace)) {
278	TopFace = SubShapes(TopFace);
279	}
280	TopBuilder.Generated(TopFace);
281	} else {
282	TopoDS_Iterator itr(TopFace);
283	for (; itr.More(); itr.Next()) {
284	TNaming_Builder TopBuilder(theResultLabel.NewChild());
285	TopBuilder.Generated(itr.Value());
286	}
287	}
288	}
289	}
290	}