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// File: ShapeUpgrade_SplitCurve2d.cxx
// Created: Thu Mar 12 12:26:05 1998
// Author: Pierre BARRAS
// <pbs@sgi84>
#include <ShapeUpgrade_SplitCurve2d.ixx>
#include <ShapeUpgrade.hxx>
#include <Geom2d_BSplineCurve.hxx>
#include <TColStd_ListIteratorOfListOfReal.hxx>
#include <TColStd_HSequenceOfReal.hxx>
#include <TColGeom2d_HArray1OfCurve.hxx>
#include <Geom2d_TrimmedCurve.hxx>
#include <Geom2d_OffsetCurve.hxx>
#include <Standard_ErrorHandler.hxx>
#include <Standard_Failure.hxx>
#include <ShapeExtend.hxx>
#include <Precision.hxx>
#include <Geom2d_BezierCurve.hxx>
#include <ShapeAnalysis_Curve.hxx>
//=======================================================================
//function : ShapeUpgrade_SplitCurve2d
//purpose :
//=======================================================================
ShapeUpgrade_SplitCurve2d::ShapeUpgrade_SplitCurve2d()
{
}
//=======================================================================
//function : Init
//purpose :
//=======================================================================
void ShapeUpgrade_SplitCurve2d::Init(const Handle(Geom2d_Curve)& C)
{
Init (C, C->FirstParameter(), C->LastParameter());
}
//=======================================================================
//function : Init
//purpose :
//=======================================================================
void ShapeUpgrade_SplitCurve2d::Init(const Handle(Geom2d_Curve)& C,
const Standard_Real First,
const Standard_Real Last)
{
// if (ShapeUpgrade::Debug()) cout << "SplitCurve2d::Init"<<endl;
Handle(Geom2d_Curve) CopyOfC = Handle(Geom2d_Curve)::DownCast(C->Copy());
myCurve = CopyOfC;
Standard_Real precision = Precision::PConfusion();
Standard_Real firstPar = First;
Standard_Real lastPar = Last;
Handle (Geom2d_Curve) aCurve = myCurve;
if(aCurve->IsKind(STANDARD_TYPE(Geom2d_TrimmedCurve)))
aCurve=Handle(Geom2d_TrimmedCurve)::DownCast(aCurve)->BasisCurve();
// 15.11.2002 PTV OCC966
if(!ShapeAnalysis_Curve::IsPeriodic(C)) {
Standard_Real fP = aCurve->FirstParameter();
Standard_Real lP = aCurve->LastParameter();
if(Abs(firstPar-fP) < precision)
firstPar = fP;
if(Abs(lastPar-lP) < precision)
lastPar = lP;
if(firstPar < fP){
#ifdef DEB
cout <<"Warning: The range of the edge exceeds the curve domain" <<endl;
#endif
firstPar = fP;
}
if(lastPar > lP){
#ifdef DEB
cout <<"Warning: The range of the edge exceeds the curve domain" <<endl;
#endif
lastPar = lP;
}
if( (lastPar-firstPar) < precision)
lastPar=firstPar+2*precision;
}
ShapeUpgrade_SplitCurve::Init (firstPar, lastPar);
// first, we make a copy of C to prevent modification:
// if (ShapeUpgrade::Debug()) cout << ". copy of the curve"<<endl;
myNbCurves = 1;
}
//=======================================================================
//function : Build
//purpose :
//=======================================================================
void ShapeUpgrade_SplitCurve2d::Build(const Standard_Boolean Segment)
{
// if (ShapeUpgrade::Debug()) cout<<"ShapeUpgrade_SplitCurve2d::Build"<<endl;
Standard_Real First = mySplitValues->Value(1);
Standard_Real Last = mySplitValues->Value(mySplitValues->Length());
//PrepareKnots();
if (mySplitValues->Length() > 2)
myStatus = ShapeExtend::EncodeStatus (ShapeExtend_DONE1);
if (myCurve->IsKind(STANDARD_TYPE(Geom2d_TrimmedCurve))) {
Handle(Geom2d_TrimmedCurve) tmp = Handle(Geom2d_TrimmedCurve)::DownCast (myCurve);
Handle(Geom2d_Curve) BasCurve = tmp->BasisCurve();
ShapeUpgrade_SplitCurve2d spc;
spc.Init(BasCurve,First,Last);
spc.SetSplitValues(mySplitValues);
spc.Build(Segment);
myNbCurves = spc.GetCurves()->Length();
myResultingCurves=new TColGeom2d_HArray1OfCurve (1,myNbCurves);
if (myNbCurves == 1) {
Handle(Geom2d_TrimmedCurve) NewTrimCurve =
new Geom2d_TrimmedCurve(spc.GetCurves()->Value(1),First,Last);
myResultingCurves->SetValue(1,NewTrimCurve);
}
else
myResultingCurves = spc.GetCurves();
myStatus |= spc.myStatus;
return;
}
else if (myCurve->IsKind(STANDARD_TYPE(Geom2d_OffsetCurve))) {
Handle(Geom2d_OffsetCurve) tmp = Handle(Geom2d_OffsetCurve)::DownCast (myCurve);
Handle(Geom2d_Curve) BasCurve = tmp->BasisCurve();
Standard_Real Offset = tmp->Offset();
ShapeUpgrade_SplitCurve2d spc;
spc.Init(BasCurve,First,Last);
spc.SetSplitValues(mySplitValues);
spc.Build(Segment);
myNbCurves = spc.GetCurves()->Length();
myResultingCurves = new TColGeom2d_HArray1OfCurve (1,myNbCurves);
for(Standard_Integer i = 1; i <= myNbCurves; i++) {
Handle(Geom2d_OffsetCurve) NewOffsetCurve = new Geom2d_OffsetCurve(spc.GetCurves()->Value(i),Offset);
myResultingCurves->SetValue(i,NewOffsetCurve);
}
myStatus |= spc.myStatus;
return;
}
myNbCurves = mySplitValues->Length() -1;
myResultingCurves=new TColGeom2d_HArray1OfCurve (1,myNbCurves);
if(myNbCurves ==1) {
Standard_Boolean filled = Standard_True;
if ( Abs ( myCurve->FirstParameter() - First ) < Precision::PConfusion() &&
Abs ( myCurve->LastParameter() - Last ) < Precision::PConfusion() )
myResultingCurves->SetValue(1,myCurve);
else if ( ! Segment || (!myCurve->IsKind (STANDARD_TYPE (Geom2d_BSplineCurve)) &&
!myCurve->IsKind (STANDARD_TYPE (Geom2d_BezierCurve))) || ! Status ( ShapeExtend_DONE2 ) ) {
if(myCurve->IsKind (STANDARD_TYPE (Geom2d_BSplineCurve)) ||
myCurve->IsKind (STANDARD_TYPE (Geom2d_BezierCurve) )) {
Handle(Geom2d_Curve) theNewCurve = Handle(Geom2d_Curve)::DownCast(myCurve->Copy());
try {
OCC_CATCH_SIGNALS
if (myCurve->IsKind (STANDARD_TYPE (Geom2d_BSplineCurve)))
Handle(Geom2d_BSplineCurve)::DownCast(theNewCurve)->Segment (First, Last);
else if (myCurve->IsKind (STANDARD_TYPE (Geom2d_BezierCurve)))
Handle(Geom2d_BezierCurve)::DownCast(theNewCurve)->Segment (First, Last);
}
catch (Standard_Failure) {
#ifdef DEB
cout << "Warning: ShapeUpgrade_Split2dCurve::Build(): Exception in Segment :";
Standard_Failure::Caught()->Print(cout); cout << endl;
#endif
theNewCurve = new Geom2d_TrimmedCurve(Handle(Geom2d_Curve)::DownCast(myCurve->Copy()),First,Last);
}
myResultingCurves->SetValue (1, theNewCurve);
}
else {
Handle(Geom2d_TrimmedCurve) theNewCurve = new Geom2d_TrimmedCurve(Handle(Geom2d_Curve)::DownCast(myCurve->Copy()),First,Last);
myResultingCurves->SetValue (1, theNewCurve);
}
}
else filled = Standard_False;
if ( filled ) return;
}
if (myCurve->IsKind (STANDARD_TYPE (Geom2d_BSplineCurve))) {
Handle(Geom2d_BSplineCurve) BsCurve = Handle(Geom2d_BSplineCurve)::DownCast(myCurve->Copy());
Standard_Integer FirstInd =BsCurve->FirstUKnotIndex(),
LastInd = BsCurve->LastUKnotIndex();
Standard_Integer j = FirstInd;
for(Standard_Integer ii =1 ; ii <= mySplitValues->Length(); ii++) {
Standard_Real spval = mySplitValues->Value(ii);
for(; j <=LastInd;j++) {
if( spval > BsCurve->Knot(j) + Precision::PConfusion()) continue;
if( spval < BsCurve->Knot(j) - Precision::PConfusion()) break;
mySplitValues->SetValue(ii,BsCurve->Knot(j));
}
if(j == LastInd) break;
}
}
for (Standard_Integer i = 1; i <= myNbCurves; i++) {
// skl : in the next block I change "First","Last" to "Firstt","Lastt"
Standard_Real Firstt = mySplitValues->Value(i), Lastt = mySplitValues->Value(i+1);
Handle(Geom2d_Curve) theNewCurve;
if(Segment) {
// creates a copy of myCurve before to segment:
if (myCurve->IsKind (STANDARD_TYPE (Geom2d_BSplineCurve)) ||
myCurve->IsKind (STANDARD_TYPE (Geom2d_BezierCurve))) {
theNewCurve = Handle(Geom2d_Curve)::DownCast(myCurve->Copy());
try {
OCC_CATCH_SIGNALS
if (myCurve->IsKind (STANDARD_TYPE (Geom2d_BSplineCurve)))
Handle(Geom2d_BSplineCurve)::DownCast(theNewCurve)->Segment (Firstt, Lastt);
else if (myCurve->IsKind (STANDARD_TYPE (Geom2d_BezierCurve)))
Handle(Geom2d_BezierCurve)::DownCast(theNewCurve)->Segment (Firstt, Lastt);
myStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE3 );
}
catch (Standard_Failure) {
#ifdef DEB
cout << "Warning: ShapeUpgrade_Split2dCurve::Build(): Exception in Segment :";
Standard_Failure::Caught()->Print(cout); cout << endl;
#endif
theNewCurve = new Geom2d_TrimmedCurve(Handle(Geom2d_Curve)::DownCast(myCurve->Copy()),Firstt,Lastt);
}
}
else
theNewCurve = new Geom2d_TrimmedCurve(Handle(Geom2d_Curve)::DownCast(myCurve->Copy()),Firstt,Lastt);
}
myResultingCurves->SetValue (i, theNewCurve);
}
}
//=======================================================================
//function : GetCurves
//purpose :
//=======================================================================
const Handle(TColGeom2d_HArray1OfCurve)& ShapeUpgrade_SplitCurve2d::GetCurves() const
{
return myResultingCurves;
}
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