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//--------------------------------------------------------------------
//
// File Name : IGESGeom_BSplineSurface.cxx
// Date :
// Author : CKY / Contract Toubro-Larsen
// Copyright : MATRA-DATAVISION 1993
//
//--------------------------------------------------------------------
#include <IGESGeom_BSplineSurface.ixx>
#include <Standard_OutOfRange.hxx>
#include <gp_GTrsf.hxx>
IGESGeom_BSplineSurface::IGESGeom_BSplineSurface () { }
void IGESGeom_BSplineSurface::Init
(const Standard_Integer anIndexU,
const Standard_Integer anIndexV, const Standard_Integer aDegU,
const Standard_Integer aDegV, const Standard_Boolean aCloseU,
const Standard_Boolean aCloseV, const Standard_Boolean aPolynom,
const Standard_Boolean aPeriodU, const Standard_Boolean aPeriodV,
const Handle(TColStd_HArray1OfReal)& allKnotsU,
const Handle(TColStd_HArray1OfReal)& allKnotsV,
const Handle(TColStd_HArray2OfReal)& allWeights,
const Handle(TColgp_HArray2OfXYZ)& allPoles,
const Standard_Real aUmin, const Standard_Real aUmax,
const Standard_Real aVmin, const Standard_Real aVmax)
{
if (allWeights->RowLength() != allPoles->RowLength() ||
allWeights->ColLength() != allPoles->ColLength())
Standard_DimensionMismatch::Raise("IGESGeom_BSplineSurface : Init");
if (allKnotsU->Lower() != -aDegU || allKnotsV->Lower() != -aDegV ||
allKnotsU->Upper() != anIndexU+1 || allKnotsV->Upper() != anIndexV+1 ||
allWeights->LowerRow() != 0 || allWeights->LowerCol() != 0 ||
allPoles->LowerRow() != 0 || allPoles->LowerCol() != 0 ||
allPoles->UpperRow() != anIndexU || allPoles->UpperCol() != anIndexV)
Standard_DimensionMismatch::Raise("IGESGeom_BSplineSurface : Init");
theIndexU = anIndexU;
theIndexV = anIndexV;
theDegreeU = aDegU;
theDegreeV = aDegV;
isClosedU = aCloseU;
isClosedV = aCloseV;
isPolynomial = aPolynom;
isPeriodicU = aPeriodU;
isPeriodicV = aPeriodV;
theKnotsU = allKnotsU;
theKnotsV = allKnotsV;
theWeights = allWeights;
thePoles = allPoles;
theUmin = aUmin;
theUmax = aUmax;
theVmin = aVmin;
theVmax = aVmax;
InitTypeAndForm(128,FormNumber());
// FormNumber precises the shape 0-9
}
void IGESGeom_BSplineSurface::SetFormNumber (const Standard_Integer form)
{
if (form < 0 || form > 9) Standard_OutOfRange::Raise
("IGESGeom_BSplineSurface : SetFormNumber");
InitTypeAndForm(128,form);
}
Standard_Integer IGESGeom_BSplineSurface::UpperIndexU () const
{
return theIndexU;
}
Standard_Integer IGESGeom_BSplineSurface::UpperIndexV () const
{
return theIndexV;
}
Standard_Integer IGESGeom_BSplineSurface::DegreeU () const
{
return theDegreeU;
}
Standard_Integer IGESGeom_BSplineSurface::DegreeV () const
{
return theDegreeV;
}
Standard_Boolean IGESGeom_BSplineSurface::IsClosedU () const
{
return isClosedU;
}
Standard_Boolean IGESGeom_BSplineSurface::IsClosedV () const
{
return isClosedV;
}
Standard_Boolean IGESGeom_BSplineSurface::IsPolynomial
(const Standard_Boolean flag) const
{
if (flag) return isPolynomial;
Standard_Integer i,j;
Standard_Real w0 = theWeights->Value(0,0);
for ( j = 0; j < theIndexV; j ++)
for (i = 0; i < theIndexU; i ++)
if (Abs(theWeights->Value(i,j) - w0) > 1.e-10) return Standard_False;
return Standard_True;
}
Standard_Boolean IGESGeom_BSplineSurface::IsPeriodicU () const
{
return isPeriodicU;
}
Standard_Boolean IGESGeom_BSplineSurface::IsPeriodicV () const
{
return isPeriodicV;
}
Standard_Integer IGESGeom_BSplineSurface::NbKnotsU () const
{
return theKnotsU->Length();
}
Standard_Integer IGESGeom_BSplineSurface::NbKnotsV () const
{
return theKnotsV->Length();
}
Standard_Real IGESGeom_BSplineSurface::KnotU
(const Standard_Integer anIndex) const
{
return theKnotsU->Value(anIndex);
}
Standard_Real IGESGeom_BSplineSurface::KnotV
(const Standard_Integer anIndex) const
{
return theKnotsV->Value(anIndex);
}
Standard_Integer IGESGeom_BSplineSurface::NbPolesU () const
{
return theIndexU+1;
}
Standard_Integer IGESGeom_BSplineSurface::NbPolesV () const
{
return theIndexV+1;
}
Standard_Real IGESGeom_BSplineSurface::Weight
(const Standard_Integer anIndex1, const Standard_Integer anIndex2) const
{
return theWeights->Value(anIndex1, anIndex2);
}
gp_Pnt IGESGeom_BSplineSurface::Pole
(const Standard_Integer anIndex1, const Standard_Integer anIndex2) const
{
gp_XYZ tempXYZ = thePoles->Value(anIndex1,anIndex2);
// Reversal of the order of indices since the poles are
// stored in the array like that. See ReadOwnParams()
gp_Pnt Pole(tempXYZ);
return Pole;
}
gp_Pnt IGESGeom_BSplineSurface::TransformedPole
(const Standard_Integer anIndex1, const Standard_Integer anIndex2) const
{
gp_XYZ tempXYZ = thePoles->Value(anIndex1, anIndex2);
// Reversal of the order of indices since the poles are
// stored in the array like that. See ReadOwnParams()
if (HasTransf()) Location().Transforms(tempXYZ);
gp_Pnt Pole(tempXYZ);
return Pole;
}
Standard_Real IGESGeom_BSplineSurface::UMin () const
{
return theUmin;
}
Standard_Real IGESGeom_BSplineSurface::UMax () const
{
return theUmax;
}
Standard_Real IGESGeom_BSplineSurface::VMin () const
{
return theVmin;
}
Standard_Real IGESGeom_BSplineSurface::VMax () const
{
return theVmax;
}
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