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// File: BRepAlgo_BooleanOperation.cxx
// Created: Thu Nov 20 17:08:08 1997
// Author: Prestataire Mary FABIEN
// <fbi@langdox.paris1.matra-dtv.fr>
#include <BRepAlgo_BooleanOperations.ixx>
#include <TopOpeBRep_DSFiller.hxx>
#include <TopOpeBRepDS_BuildTool.hxx>
#include <TopOpeBRepTool_GeomTool.hxx>
#include <BRep_Tool.hxx>
#include <BRep_Builder.hxx>
#include <BRepTools_Substitution.hxx>
#include <TopoDS.hxx>
#include <TopoDS_Compound.hxx>
#include <TopTools_ListOfShape.hxx>
#include <TopTools_ListIteratorOfListOfShape.hxx>
#include <Geom_Surface.hxx>
#include <TopLoc_Location.hxx>
#include <Bnd_Box.hxx>
#include <BRepBndLib.hxx>
//=======================================================================
//function : Create
//purpose :
//=======================================================================
BRepAlgo_BooleanOperations::BRepAlgo_BooleanOperations() :
myApproxNbPntMax (30) ,
myApproxTol3D (1.e-7) ,
myApproxTol2D (1.e-7) ,
myApproxRelativeTol (Standard_True)
{
}
//=======================================================================
//function : Shapes2d
//purpose :
//=======================================================================
void BRepAlgo_BooleanOperations::Shapes2d (const TopoDS_Shape& S1,
const TopoDS_Shape& S2)
{
// S1 doit etre une face ou un ensemble de faces
// S2 doit etre une edge.
if (S2.ShapeType() != TopAbs_EDGE) return;
BRep_Builder Builder ;
TopoDS_Wire Wire ;
Builder.MakeWire (Wire);
Builder.Add (Wire, S2);
TopExp_Explorer Exp (S1, TopAbs_FACE) ;
if (!Exp.More()) return ;
const TopoDS_Face& FirstFace = TopoDS::Face (Exp.Current()) ;
TopLoc_Location Loc;
const Handle(Geom_Surface)& Surf = BRep_Tool::Surface (FirstFace, Loc) ;
TopoDS_Face Face ;
Builder.MakeFace (Face, Surf, Loc, BRep_Tool::Tolerance (FirstFace)) ;
Builder.Add (Face, Wire) ;
Face.Orientation (FirstFace.Orientation()) ;
myS1 = S1 ;
myS2 = Face ;
myDSA.Init() ;
myDSA.Load (myS1, myS2) ;
Handle (TopOpeBRepDS_HDataStructure)& HDS = myDSA.ChangeDS() ;
myDSA.myDSFiller.Insert2d (myS1, myS2, HDS) ;
}
//=======================================================================
//function : Shapes
//purpose : Defines the arguments.
//=======================================================================
void BRepAlgo_BooleanOperations::Shapes (const TopoDS_Shape& S1,
const TopoDS_Shape& S2)
{
myS1 = S1;
myS2 = S2;
myDSA.Init();
myDSA.Load(myS1, myS2);
Handle(TopOpeBRepDS_HDataStructure)& HDS = myDSA.ChangeDS();
myDSA.myDSFiller.Insert(myS1,myS2,HDS);
// const Standard_Boolean CheckShapes = Standard_True;
// Standard_Boolean esp = HDS->EdgesSameParameter();
// Standard_Boolean localcheck = CheckShapes;
}
//=======================================================================
//function : SetApproxParameters
//purpose : Sets the parameters for the approximations.
//=======================================================================
void BRepAlgo_BooleanOperations::SetApproxParameters (const Standard_Integer NbPntMax,
const Standard_Real Tol3D,
const Standard_Real Tol2D,
const Standard_Boolean RelativeTol)
{
myApproxNbPntMax = NbPntMax ;
myApproxTol3D = Tol3D ;
myApproxTol2D = Tol2D ;
myApproxRelativeTol = RelativeTol ;
}
//=======================================================================
//function : Define
//purpose :
//=======================================================================
void BRepAlgo_BooleanOperations::Define (const TopoDS_Shape& S1,
const TopoDS_Shape& S2,
Handle(TopOpeBRepDS_HDataStructure)& HDS)
{
ChangeDataStructure() = HDS;
myS1 = S1;
myS2 = S2;
}
//=======================================================================
//function : Perform
//purpose : Performs the global boolean operation.
//=======================================================================
void BRepAlgo_BooleanOperations::Perform ()
{
TopOpeBRepDS_BuildTool& BTofBuilder = myDSA.myHB->ChangeBuildTool();
TopOpeBRepTool_GeomTool& GTofBTofBuilder = BTofBuilder.ChangeGeomTool();
GTofBTofBuilder.SetNbPntMax(myApproxNbPntMax);
GTofBTofBuilder.SetTolerances (myApproxTol3D, myApproxTol2D, myApproxRelativeTol) ;
Handle(TopOpeBRepBuild_HBuilder)& HB = myDSA.myHB;
Handle(TopOpeBRepDS_HDataStructure)& HDS = myDSA.ChangeDS();
HB->Perform(HDS,myS1,myS2);
}
//=======================================================================
//function : Perform
//purpose : Performs the global boolean operation in regards of the
// given states.
//=======================================================================
void BRepAlgo_BooleanOperations::Perform (const TopAbs_State State1,
const TopAbs_State State2)
{
Perform() ;
myShape.Nullify() ;
myResult.Nullify() ;
myMapShape.Clear() ;
Handle(TopOpeBRepBuild_HBuilder)& HBuilder = ChangeBuilder() ;
HBuilder->MergeShapes (myS1, State1, myS2, State2) ;
const TopTools_ListOfShape& ListResults = HBuilder->Merged (myS1, State1) ;
Standard_Integer NbResults = ListResults.Extent() ;
if (NbResults > 0) {
if (NbResults == 1) {
myShape = ListResults.First() ;
} else {
BRep_Builder Builder ;
Builder.MakeCompound (TopoDS::Compound (myShape)) ;
TopTools_ListIteratorOfListOfShape Iter ;
for (Iter.Initialize (ListResults) ; Iter.More() ; Iter.Next())
Builder.Add (myShape, Iter.Value()) ;
}
TopExp_Explorer Explorer ;
for (Explorer.Init (myShape, TopAbs_FACE) ; Explorer.More() ; Explorer.Next()) {
myMapShape.Add (Explorer.Current()) ;
}
for (Explorer.Init (myShape, TopAbs_EDGE) ; Explorer.More() ; Explorer.Next()) {
myMapShape.Add (Explorer.Current()) ;
}
}
}
//=======================================================================
//function : Common
//purpose :
//=======================================================================
const TopoDS_Shape& BRepAlgo_BooleanOperations::Common()
{
Perform (TopAbs_IN, TopAbs_IN) ;
return myShape ;
}
//=======================================================================
//function : fus
//purpose :
//=======================================================================
const TopoDS_Shape& BRepAlgo_BooleanOperations::Fus()
{
Perform (TopAbs_OUT, TopAbs_OUT) ;
return myShape ;
}
//=======================================================================
//function : cut
//purpose :
//=======================================================================
const TopoDS_Shape& BRepAlgo_BooleanOperations::Cut()
{
Perform (TopAbs_OUT, TopAbs_IN) ;
return myShape ;
}
//=======================================================================
//function : Section
//purpose :
//=======================================================================
const TopoDS_Shape& BRepAlgo_BooleanOperations::Section()
{
// Standard_Boolean bcw = BuilderCanWork();
// if ( ! bcw || myshapeisnull) return;
Perform () ;
myShape.Nullify() ;
myResult.Nullify() ;
myMapShape.Clear() ;
Handle(TopOpeBRepBuild_HBuilder)& HBuilder = myDSA.myHB ;
const TopTools_ListOfShape& ListResults = HBuilder->Section() ;
Standard_Integer NbResults = ListResults.Extent() ;
if (NbResults > 0) {
if (NbResults == 1) {
myShape = ListResults.First() ;
} else {
BRep_Builder Builder ;
Builder.MakeCompound (TopoDS::Compound (myShape)) ;
TopTools_ListIteratorOfListOfShape Iter ;
for (Iter.Initialize (ListResults) ; Iter.More() ; Iter.Next())
Builder.Add (myShape, Iter.Value()) ;
}
TopExp_Explorer Explorer ;
for (Explorer.Init (myShape, TopAbs_EDGE) ; Explorer.More() ; Explorer.Next()) {
myMapShape.Add (Explorer.Current()) ;
}
}
return myShape ;
}
//=======================================================================
//function : Shape
//purpose :
//=======================================================================
const TopoDS_Shape& BRepAlgo_BooleanOperations::Shape()
{
return myShape;
}
//=======================================================================
//function : Shape
//purpose :
//=======================================================================
const TopoDS_Shape& BRepAlgo_BooleanOperations::ShapeFrom (const TopoDS_Shape& Shape)
{
myResult.Nullify() ;
if (!myShape.IsNull()) {
TopoDS_Shape ShapeToDel ;
if (Shape.IsSame (myS1)) {
ShapeToDel = myS2 ;
} else {
ShapeToDel = myS1 ;
}
BRepTools_Substitution Substitute ;
TopTools_ListOfShape NullFaces ;
NullFaces.Clear() ;
TopExp_Explorer ExpFac ;
for (ExpFac.Init (ShapeToDel, TopAbs_FACE) ; ExpFac.More() ; ExpFac.Next()) {
const TopoDS_Face& Face = TopoDS::Face (ExpFac.Current()) ;
const TopTools_ListOfShape& ListResults = Modified (Face) ;
if (ListResults.Extent() == 0) {
if (myMapShape.Contains (Face)) Substitute.Substitute (Face, NullFaces) ;
} else {
TopTools_ListIteratorOfListOfShape ItrFace ;
for (ItrFace.Initialize (ListResults) ; ItrFace.More() ; ItrFace.Next()) {
Substitute.Substitute (TopoDS::Face (ItrFace.Value()), NullFaces) ;
}
}
}
Substitute.Build (myShape) ;
if (Substitute.IsCopied (myShape)) {
const TopTools_ListOfShape& ListResults = Substitute.Copy (myShape) ;
Standard_Integer NbResults = ListResults.Extent() ;
if (NbResults == 1) {
myResult = ListResults.First() ;
} else if (NbResults > 1) {
BRep_Builder Builder ;
Builder.MakeCompound (TopoDS::Compound (myResult)) ;
TopTools_ListIteratorOfListOfShape ItrResult ;
for (ItrResult.Initialize (ListResults) ; ItrResult.More() ; ItrResult.Next()) {
Builder.Add (myResult, ItrResult.Value()) ;
}
}
} else {
myResult = myShape ;
}
}
return myResult ;
}
//=======================================================================
//function : Modified
//purpose :
//=======================================================================
const TopTools_ListOfShape& BRepAlgo_BooleanOperations::Modified (const TopoDS_Shape& Shape)
{
return myDSA.Modified(Shape);
}
//=======================================================================
//function : IsDeleted
//purpose :
//=======================================================================
Standard_Boolean BRepAlgo_BooleanOperations::IsDeleted (const TopoDS_Shape& Shape)
{
Standard_Boolean Deleted = Standard_True ;
Handle(TopOpeBRepBuild_HBuilder)& HBuilder = myDSA.myHB ;
if ( myMapShape.Contains (Shape)
|| HBuilder->IsMerged (Shape, TopAbs_OUT)
|| HBuilder->IsMerged (Shape, TopAbs_IN)
|| HBuilder->IsMerged (Shape, TopAbs_ON)
|| HBuilder->IsSplit (Shape, TopAbs_OUT)
|| HBuilder->IsSplit (Shape, TopAbs_IN)
|| HBuilder->IsSplit (Shape, TopAbs_ON))
Deleted = Standard_False ;
return Deleted ;
}
//=======================================================================
//function : DataStructure
//purpose :
//=======================================================================
const Handle(TopOpeBRepDS_HDataStructure)& BRepAlgo_BooleanOperations::DataStructure() const
{
return myDSA.DS();
}
//=======================================================================
//function : DataStructure
//purpose :
//=======================================================================
Handle(TopOpeBRepDS_HDataStructure)& BRepAlgo_BooleanOperations::ChangeDataStructure()
{
return myDSA.ChangeDS();
}
//=======================================================================
//function : Builder
//purpose :
//=======================================================================
const Handle(TopOpeBRepBuild_HBuilder)& BRepAlgo_BooleanOperations::Builder() const
{
return myDSA.Builder();
}
//=======================================================================
//function : Builder
//purpose :
//=======================================================================
Handle(TopOpeBRepBuild_HBuilder)& BRepAlgo_BooleanOperations::ChangeBuilder()
{
return myDSA.ChangeBuilder();
}
//=======================================================================
//function : DataStructureAccess
//purpose : returns the member myDSA.
//=======================================================================
BRepAlgo_DSAccess& BRepAlgo_BooleanOperations::DataStructureAccess()
{
return myDSA;
}
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