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#include <ShapeAnalysis_TransferParameters.ixx>
#include <Geom_Curve.hxx>
#include <Geom2d_Curve.hxx>
#include <ShapeAnalysis_Edge.hxx>
#include <TColStd_HArray1OfReal.hxx>
#include <BRep_Tool.hxx>
#include <gp.hxx>
#include <ShapeBuild_Edge.hxx>
//=======================================================================
//function : ShapeAnalysis_TransferParameters
//purpose :
//=======================================================================
ShapeAnalysis_TransferParameters::ShapeAnalysis_TransferParameters()
{
myScale = 1.;
myShift = 0.;
}
//=======================================================================
//function : ShapeAnalysis_TransferParameters
//purpose :
//=======================================================================
ShapeAnalysis_TransferParameters::ShapeAnalysis_TransferParameters(const TopoDS_Edge& E,
const TopoDS_Face& F)
{
Init(E,F);
}
//=======================================================================
//function : Init
//purpose :
//=======================================================================
void ShapeAnalysis_TransferParameters::Init(const TopoDS_Edge& E, const TopoDS_Face& F)
{
myScale = 1.;
myShift = 0.;
Standard_Real l,f,l2d = 0.0,f2d = 0.0;
TopLoc_Location L;
myEdge = E;
ShapeAnalysis_Edge sae;
Handle(Geom_Curve) curve3d;// = BRep_Tool::Curve (E,f,l);
sae.Curve3d ( E, curve3d, f, l ,Standard_False);
myFirst = f;
myLast = l;
Handle(Geom2d_Curve) curve2d;// = BRep_Tool::CurveOnSurface (E, F, f2d,l2d);
// ShapeAnalysis_Edge sae;
if (! F.IsNull() ) { // process free edges
sae.PCurve ( E, F, curve2d, f2d, l2d,Standard_False );
}
myFirst2d = f2d;
myLast2d = l2d;
myFace = F;
if ( curve3d.IsNull() || curve2d.IsNull() ) return;
Standard_Real ln2d = l2d - f2d;
Standard_Real ln3d = l - f;
myScale = ( ln3d <= gp::Resolution() ? 1. : ln2d / ln3d );
myShift = f2d - f * myScale;
}
//=======================================================================
//function : SetMaxTolerance
//purpose :
//=======================================================================
void ShapeAnalysis_TransferParameters::SetMaxTolerance( const Standard_Real maxtol )
{
myMaxTolerance = maxtol;
}
//=======================================================================
//function : Perform
//purpose :
//=======================================================================
Handle(TColStd_HSequenceOfReal) ShapeAnalysis_TransferParameters::Perform
(const Handle(TColStd_HSequenceOfReal)& Params,
const Standard_Boolean To2d)
{
Handle(TColStd_HSequenceOfReal) res = new TColStd_HSequenceOfReal;
for (Standard_Integer i = 1 ; i <= Params->Length(); i++)
res->Append(Perform(Params->Value(i),To2d));
return res;
}
//=======================================================================
//function : Perform
//purpose :
//=======================================================================
Standard_Real ShapeAnalysis_TransferParameters::Perform(const Standard_Real Param,
const Standard_Boolean To2d)
{
Standard_Real NewParam;
if(To2d)
NewParam = myShift + Param*myScale;
else
NewParam = -myShift/myScale + Param*1./myScale;
return NewParam;
}
//=======================================================================
//function : TransferRange
//purpose :
//=======================================================================
void ShapeAnalysis_TransferParameters::TransferRange(TopoDS_Edge& newEdge,
const Standard_Real prevPar,
const Standard_Real currPar,
const Standard_Boolean Is2d)
{
ShapeBuild_Edge sbe;
if(Is2d) {
Standard_Real span2d = myLast2d - myFirst2d;
Standard_Real tmp1,tmp2;
if(prevPar > currPar) {
tmp1 = currPar;
tmp2 = prevPar;
}
else {
tmp1 = prevPar;
tmp2 = currPar;
}
Standard_Real alpha = (tmp1-myFirst2d) / span2d;
Standard_Real beta = (tmp2 - myFirst2d) / span2d;
sbe.CopyRanges(newEdge,myEdge, alpha, beta);
}
else {
Standard_Real alpha = (prevPar-myFirst)/(myLast - myFirst);
Standard_Real beta = (currPar - myFirst)/(myLast - myFirst);
sbe.CopyRanges(newEdge,myEdge, alpha, beta);
}
}
//=======================================================================
//function : IsSameRange
//purpose :
//=======================================================================
Standard_Boolean ShapeAnalysis_TransferParameters::IsSameRange() const
{
return myShift == 0. && myScale == 1.;
}
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