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Public Member Functions
IGESGeom_SplineSurface Class Reference

defines IGESSplineSurface, Type <114> Form <0>
in package IGESGeom
A parametric spline surface is a grid of polynomial
patches. Patch could be of the type Linear, Quadratic,
Cubic, Wilson-Fowler, Modified Wilson-Fowler, B-Spline
The M * N grid of patches is defined by the 'u' break
points TU(1), TU(2), ..., TU(M+1) and the 'v' break
points TV(1), TV(2), TV(3) ..., TV(N+1).

#include <IGESGeom_SplineSurface.hxx>

Inheritance diagram for IGESGeom_SplineSurface:
Inheritance graph
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Public Member Functions

 IGESGeom_SplineSurface ()
void Init (const Standard_Integer aBoundaryType, const Standard_Integer aPatchType, const Handle< TColStd_HArray1OfReal > &allUBreakpoints, const Handle< TColStd_HArray1OfReal > &allVBreakpoints, const Handle< IGESBasic_HArray2OfHArray1OfReal > &allXCoeffs, const Handle< IGESBasic_HArray2OfHArray1OfReal > &allYCoeffs, const Handle< IGESBasic_HArray2OfHArray1OfReal > &allZCoeffs)
 This method is used to set the fields of the class
SplineSurface

Standard_Integer NbUSegments () const
 returns the number of U segments

Standard_Integer NbVSegments () const
 returns the number of V segments

Standard_Integer BoundaryType () const
 returns boundary type

Standard_Integer PatchType () const
 returns patch type

Standard_Real UBreakPoint (const Standard_Integer anIndex) const
 returns U break point of the grid line referred to by anIndex
raises exception if anIndex <= 0 or anIndex > NbUSegments() + 1

Standard_Real VBreakPoint (const Standard_Integer anIndex) const
 returns V break point of the grid line referred to by anIndex
raises exception if anIndex <= 0 or anIndex > NbVSegments() + 1

Handle_TColStd_HArray1OfReal XPolynomial (const Standard_Integer anIndex1, const Standard_Integer anIndex2) const
 returns X polynomial of patch referred to by anIndex1, anIndex2
raises exception if anIndex1 <= 0 or anIndex1 > NbUSegments()
or anIndex2 <= 0 or anIndex2 > NbVSegments()

Handle_TColStd_HArray1OfReal YPolynomial (const Standard_Integer anIndex1, const Standard_Integer anIndex2) const
 returns Y polynomial of patch referred to by anIndex1, anIndex2
raises exception if anIndex1 <= 0 or anIndex1 > NbUSegments()
or anIndex2 <= 0 or anIndex2 > NbVSegments()

Handle_TColStd_HArray1OfReal ZPolynomial (const Standard_Integer anIndex1, const Standard_Integer anIndex2) const
 returns Z polynomial of patch referred to by anIndex1, anIndex2
raises exception if anIndex1 <= 0 or anIndex1 > NbUSegments()
or anIndex2 <= 0 or anIndex2 > NbVSegments()

void Polynomials (Handle< IGESBasic_HArray2OfHArray1OfReal > &XCoef, Handle< IGESBasic_HArray2OfHArray1OfReal > &YCoef, Handle< IGESBasic_HArray2OfHArray1OfReal > &ZCoef) const
 returns in one all the polynomial values "in bulk"
usefull for massive treatements


Constructor & Destructor Documentation


Member Function Documentation

  - aBoundaryType   : Type of Spline boundary <br>
                      1 = Linear <br>
                      2 = Quadratic <br>
                      3 = Cubic <br>
                      4 = Wilson-Fowler <br>
                      5 = Modified Wilson-Fowler <br>
                      6 = B-spline <br>
  - aPatchType      : Type of patch contained in the grid <br>
                      1 = Cartesian Product <br>
                      0 = Unspecified <br>
  - allUBreakpoints : u values of grid lines <br>
  - allVBreakpoints : v values of grid lines <br>
  - allXCoeffs      : X coefficients of M x N patches <br>
  - allYCoeffs      : Y coefficients of M x N patches <br>
  - allZCoeffs      : Z coefficients of M x N patches <br>

raises exception if allXCoeffs, allYCoeffs & allZCoeffs are not
of the same size.
or if the size of each element of the double array is not 16

Handle_TColStd_HArray1OfReal IGESGeom_SplineSurface::XPolynomial ( const Standard_Integer  anIndex1,
const Standard_Integer  anIndex2 
) const
Handle_TColStd_HArray1OfReal IGESGeom_SplineSurface::YPolynomial ( const Standard_Integer  anIndex1,
const Standard_Integer  anIndex2 
) const
Handle_TColStd_HArray1OfReal IGESGeom_SplineSurface::ZPolynomial ( const Standard_Integer  anIndex1,
const Standard_Integer  anIndex2 
) const

The documentation for this class was generated from the following file: