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// File: BRepAlgo_Section.cxx
// Created: Fri Feb 18 11:14:56 1994
// Author: Remi LEQUETTE
// <rle@nonox>
#include <BRepAlgo_Section.ixx>
#include <BRepBuilderAPI_MakeShell.hxx>
#include <BRepBuilderAPI_MakeFace.hxx>
#include <TopoDS.hxx>
#include <TopTools_ListIteratorOfListOfShape.hxx>
#include <TopOpeBRepDS_HDataStructure.hxx>
#include <Geom_Plane.hxx>
#include <Geom_Surface.hxx>
#include <BRep_Builder.hxx>
#include <BRep_Tool.hxx>
#include <TopOpeBRepBuild_HBuilder.hxx>
#include <TopOpeBRepDS_BuildTool.hxx>
#include <Geom2d_TrimmedCurve.hxx>
#include <TopOpeBRepBuild_Tools.hxx>
static TopoDS_Shape MakeShape(const Handle(Geom_Surface)& );
//=======================================================================
//function : BRepAlgo_Section
//purpose :
//=======================================================================
BRepAlgo_Section::BRepAlgo_Section(const TopoDS_Shape& S1,
const TopoDS_Shape& S2,
const Standard_Boolean PerformNow)
: BRepAlgo_BooleanOperation(S1, S2)
{
InitParameters();
myS1Changed = Standard_True;
myS2Changed = Standard_True;
if(myS1.IsNull() || S2.IsNull()) {
myshapeisnull = Standard_True;
}
if (PerformNow)
Build();
}
//=======================================================================
//function : BRepAlgo_Section
//purpose :
//=======================================================================
BRepAlgo_Section::BRepAlgo_Section(const TopoDS_Shape& S1,
const gp_Pln& Pl,
const Standard_Boolean PerformNow)
: BRepAlgo_BooleanOperation(S1, MakeShape(new Geom_Plane(Pl)))
{
InitParameters();
myS1Changed = Standard_True;
myS2Changed = Standard_True;
if(S1.IsNull() || myS2.IsNull()) {
myshapeisnull = Standard_True;
}
if (PerformNow)
Build();
}
//=======================================================================
//function : BRepAlgo_Section
//purpose :
//=======================================================================
BRepAlgo_Section::BRepAlgo_Section(const TopoDS_Shape& S1,
const Handle(Geom_Surface)& Sf,
const Standard_Boolean PerformNow)
: BRepAlgo_BooleanOperation(S1, MakeShape(Sf))
{
InitParameters();
myS1Changed = Standard_True;
myS2Changed = Standard_True;
if(S1.IsNull() || myS2.IsNull()) {
myshapeisnull = Standard_True;
}
if (PerformNow)
Build();
}
//=======================================================================
//function : BRepAlgo_Section
//purpose :
//=======================================================================
BRepAlgo_Section::BRepAlgo_Section(const Handle(Geom_Surface)& Sf,
const TopoDS_Shape& S2,
const Standard_Boolean PerformNow)
: BRepAlgo_BooleanOperation(MakeShape(Sf), S2)
{
InitParameters();
myS1Changed = Standard_True;
myS2Changed = Standard_True;
if(myS1.IsNull() || S2.IsNull()) {
myshapeisnull = Standard_True;
}
if (PerformNow)
Build();
}
//=======================================================================
//function : BRepAlgo_Section
//purpose :
//=======================================================================
BRepAlgo_Section::BRepAlgo_Section(const Handle(Geom_Surface)& Sf1,
const Handle(Geom_Surface)& Sf2,
const Standard_Boolean PerformNow)
: BRepAlgo_BooleanOperation(MakeShape(Sf1), MakeShape(Sf2))
{
InitParameters();
myS1Changed = Standard_True;
myS2Changed = Standard_True;
if(myS1.IsNull() || myS2.IsNull()) {
myshapeisnull = Standard_True;
}
if (PerformNow)
Build();
}
//=======================================================================
//function : Init1
//purpose : initialize the first Shape
//=======================================================================
void BRepAlgo_Section::Init1(const TopoDS_Shape& S1)
{
if(!S1.IsNull()) {
if (!S1.IsEqual(myS1)) {
myS1 = S1;
myS1Changed = Standard_True;
}
} else {
if(!myS1.IsNull()) {
myS1 = S1;
myS1Changed = Standard_True;
}
}
if (myS1Changed || myS2Changed)
NotDone();
}
//=======================================================================
//function : Init1
//purpose : initialize the first Shape
//=======================================================================
void BRepAlgo_Section::Init1(const gp_Pln& Pl)
{
Init1(MakeShape(new Geom_Plane(Pl)));
}
//=======================================================================
//function : Init1
//purpose : initialize the first Shape
//=======================================================================
void BRepAlgo_Section::Init1(const Handle(Geom_Surface)& Sf)
{
Init1(MakeShape(Sf));
}
//=======================================================================
//function : Init2
//purpose : initialize the second Shape
//=======================================================================
void BRepAlgo_Section::Init2(const TopoDS_Shape& S2)
{
if(!S2.IsNull()) {
if (!S2.IsEqual(myS2)) {
myS2 = S2;
myS2Changed = Standard_True;
}
} else {
if(!myS2.IsNull()) {
myS2 = S2;
myS2Changed = Standard_True;
}
}
if (myS1Changed || myS2Changed)
NotDone();
}
//=======================================================================
//function : Init2
//purpose : initialize the second Shape
//=======================================================================
void BRepAlgo_Section::Init2(const gp_Pln& Pl)
{
Init2(MakeShape(new Geom_Plane(Pl)));
}
//=======================================================================
//function : Init2
//purpose : initialize the second Shape
//=======================================================================
void BRepAlgo_Section::Init2(const Handle(Geom_Surface)& Sf)
{
Init2(MakeShape(Sf));
}
//=======================================================================
//function : Approximation
//purpose : To learn if an approximation of the geometry is calculated
//=======================================================================
void BRepAlgo_Section::Approximation(const Standard_Boolean Approx)
{
TopOpeBRepDS_BuildTool& BTofBuilder = myHBuilder->ChangeBuildTool();
TopOpeBRepTool_GeomTool& GTofBTofBuilder = BTofBuilder.ChangeGeomTool();
TopOpeBRepTool_OutCurveType OCT =
(Approx) ? TopOpeBRepTool_APPROX :TopOpeBRepTool_BSPLINE1;
if (GTofBTofBuilder.TypeC3D() != OCT) {
myApproxChanged = Standard_True;
GTofBTofBuilder.Define(OCT);
}
if (myApproxChanged)
NotDone();
}
//=======================================================================
//function : ComputePCurveOn1
//purpose : To learn if PCurves are calculated on the faces of the 1st Shape
//=======================================================================
void BRepAlgo_Section::ComputePCurveOn1(const Standard_Boolean ComputePCurve1)
{
TopOpeBRepDS_BuildTool& BTofBuilder = myHBuilder->ChangeBuildTool();
TopOpeBRepTool_GeomTool& GTofBTofBuilder = BTofBuilder.ChangeGeomTool();
if( GTofBTofBuilder.CompPC1() != ComputePCurve1) {
GTofBTofBuilder.DefinePCurves1(ComputePCurve1);
myPCurve1Changed = Standard_True;
}
if(myPCurve1Changed)
NotDone();
}
//=======================================================================
//function : ComputePCurve2
//purpose : To learn if PCurves are calculated on the faces of the 2nd Shape
//=======================================================================
void BRepAlgo_Section::ComputePCurveOn2(const Standard_Boolean ComputePCurve2)
{
TopOpeBRepDS_BuildTool& BTofBuilder = myHBuilder->ChangeBuildTool();
TopOpeBRepTool_GeomTool& GTofBTofBuilder = BTofBuilder.ChangeGeomTool();
if( GTofBTofBuilder.CompPC2() != ComputePCurve2) {
GTofBTofBuilder.DefinePCurves2(ComputePCurve2);
myPCurve2Changed = Standard_True;
}
if(myPCurve2Changed)
NotDone();
}
//=======================================================================
//function : Build
//purpose : compute the section
//=======================================================================
void BRepAlgo_Section::Build()
{
if (myS1Changed ||
myS2Changed ||
myApproxChanged ||
myPCurve1Changed ||
myPCurve2Changed) {
PerformDS();
Standard_Boolean bcw = BuilderCanWork();
if ( ! bcw || myshapeisnull) return;
BRep_Builder BB;
BB.MakeCompound(TopoDS::Compound(myShape));
Handle(TopOpeBRepBuild_HBuilder) HB = Builder();
TopTools_ListIteratorOfListOfShape itloe = HB->Section();
for(; itloe.More(); itloe.Next()) BB.Add(myShape,itloe.Value());
TopOpeBRepBuild_Tools::CorrectTolerances(myShape);
Done();
}
}
//=======================================================================
//function : HasAncestorFaceOn1
//purpose :
//=======================================================================
Standard_Boolean BRepAlgo_Section::HasAncestorFaceOn1(const TopoDS_Shape& E,
TopoDS_Shape& F)const
{
TopoDS_Shape F1,F2; Standard_Integer iC;
Standard_Boolean res = myHBuilder->EdgeCurveAncestors(E,F1,F2,iC);
if ( res ) F = F1;
return res;
}
//=======================================================================
//function : HasAncestorFaceOn2
//purpose :
//=======================================================================
Standard_Boolean BRepAlgo_Section::HasAncestorFaceOn2(const TopoDS_Shape& E,
TopoDS_Shape& F)const
{
TopoDS_Shape F1,F2; Standard_Integer iC;
Standard_Boolean res = myHBuilder->EdgeCurveAncestors(E,F1,F2,iC);
if ( res ) F = F2;
return res;
}
//=======================================================================
//function : PCurve1
//purpose :
//=======================================================================
Handle(Geom2d_Curve) BRepAlgo_Section::PCurveOn1(const TopoDS_Shape& E) const
{
Handle(Geom2d_Curve) PC;
const TopOpeBRepTool_GeomTool& GT = myHBuilder->BuildTool().GetGeomTool();
if (!GT.CompPC1()) return PC;
TopoDS_Shape F1,F2; Standard_Integer iC;
Standard_Boolean res = myHBuilder->EdgeCurveAncestors(E,F1,F2,iC);
if ( !res ) return PC;
const TopoDS_Edge& EE = TopoDS::Edge(E);
const TopoDS_Face& FF = TopoDS::Face(F1);
Standard_Real f,l; PC = BRep_Tool::CurveOnSurface(EE,FF,f,l);
Handle(Geom2d_TrimmedCurve) TC = new Geom2d_TrimmedCurve(PC,f,l);
return TC;
}
//=======================================================================
//function : PCurve2
//purpose :
//=======================================================================
Handle(Geom2d_Curve) BRepAlgo_Section::PCurveOn2(const TopoDS_Shape& E) const
{
Handle(Geom2d_Curve) PC;
const TopOpeBRepTool_GeomTool& GT = myHBuilder->BuildTool().GetGeomTool();
if (!GT.CompPC2()) return PC;
TopoDS_Shape F1,F2;
Standard_Integer iC;
Standard_Boolean res = myHBuilder->EdgeCurveAncestors(E,F1,F2,iC);
if ( !res ) return PC;
const TopoDS_Edge& EE = TopoDS::Edge(E);
const TopoDS_Face& FF = TopoDS::Face(F2);
Standard_Real f,l; PC = BRep_Tool::CurveOnSurface(EE,FF,f,l);
Handle(Geom2d_TrimmedCurve) TC = new Geom2d_TrimmedCurve(PC,f,l);
return TC;
}
//=======================================================================
//function : InitParameters
//purpose : initialize the fields of the class
//=======================================================================
void BRepAlgo_Section::InitParameters()
{
TopOpeBRepDS_BuildTool& BTofBuilder = myHBuilder->ChangeBuildTool();
TopOpeBRepTool_GeomTool& GTofBTofBuilder = BTofBuilder.ChangeGeomTool();
GTofBTofBuilder.Define(TopOpeBRepTool_BSPLINE1);
GTofBTofBuilder.DefineCurves(Standard_True);
GTofBTofBuilder.DefinePCurves1(Standard_False);
GTofBTofBuilder.DefinePCurves2(Standard_False);
myS1Changed = Standard_False;
myS2Changed = Standard_False;
//
myApproxChanged = Standard_False;
//
myPCurve1Changed = Standard_False;
//
myPCurve2Changed = Standard_False;
myshapeisnull = Standard_False;
}
//=======================================================================
//function : MakeShape
//purpose :
//=======================================================================
TopoDS_Shape MakeShape(const Handle(Geom_Surface)& S)
{
GeomAbs_Shape c = S->Continuity();
if (c >= GeomAbs_C2) return BRepBuilderAPI_MakeFace(S, Precision::Confusion());
else return BRepBuilderAPI_MakeShell(S);
}
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