OpenCascade/occt
1
0
Fork 0
mirror of https://git.dev.opencascade.org/repos/occt.git synced 2025-04-26 10:19:45 +03:00
Code
occt/src/ShapeUpgrade/ShapeUpgrade_SplitCurve2d.cxx
abv d5f74e42d6 0024624: Lost word in license statement in source files 
License statement text corrected; compiler warnings caused by Bison 2.41 disabled for MSVC; a few other compiler warnings on 54-bit Windows eliminated by appropriate type cast
Wrong license statements corrected in several files.
Copyright and license statements added in XSD and GLSL files.
Copyright year updated in some files.
Obsolete documentation files removed from DrawResources.
2014-02-20 16:15:17 +04:00

250 lines
9.4 KiB
C++
Raw Blame History

// Created on: 1998-03-12
// Created by: Pierre BARRAS
// Copyright (c) 1998-1999 Matra Datavision
// Copyright (c) 1999-2014 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 <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;
}
View Git Blame Copy Permalink