Open CASCADE Technology
7.1.0.beta
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This algorithm converts a bounded Sphere into a rational B-spline surface. The sphere is a Sphere from package gp. The parametrization of the sphere is P (U, V) = Loc + Radius * Sin(V) * Zdir + Radius * Cos(V) * (Cos(U)*Xdir + Sin(U)*Ydir) where Loc is the center of the sphere Xdir, Ydir and Zdir are the normalized directions of the local cartesian coordinate system of the sphere. The parametrization range is U [0, 2PI] and V [-PI/2, PI/2]. KeyWords : Convert, Sphere, BSplineSurface. More...
#include <Convert_SphereToBSplineSurface.hxx>
Public Member Functions | |
Convert_SphereToBSplineSurface (const gp_Sphere &Sph, const Standard_Real U1, const Standard_Real U2, const Standard_Real V1, const Standard_Real V2) | |
The equivalent B-spline surface as the same orientation as the sphere in the U and V parametric directions. More... | |
Convert_SphereToBSplineSurface (const gp_Sphere &Sph, const Standard_Real Param1, const Standard_Real Param2, const Standard_Boolean UTrim=Standard_True) | |
The equivalent B-spline surface as the same orientation as the sphere in the U and V parametric directions. More... | |
Convert_SphereToBSplineSurface (const gp_Sphere &Sph) | |
The equivalent B-spline surface as the same orientation as the sphere in the U and V parametric directions. More... | |
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Standard_Integer | UDegree () const |
Standard_Integer | VDegree () const |
Returns the degree for the u or v parametric direction of the BSpline surface whose data is computed in this framework. More... | |
Standard_Integer | NbUPoles () const |
Standard_Integer | NbVPoles () const |
Returns the number of poles for the u or v parametric direction of the BSpline surface whose data is computed in this framework. More... | |
Standard_Integer | NbUKnots () const |
Standard_Integer | NbVKnots () const |
Returns the number of knots for the u or v parametric direction of the BSpline surface whose data is computed in this framework . More... | |
Standard_Boolean | IsUPeriodic () const |
Standard_Boolean | IsVPeriodic () const |
Returns true if the BSpline surface whose data is computed in this framework is periodic in the u or v parametric direction. More... | |
gp_Pnt | Pole (const Standard_Integer UIndex, const Standard_Integer VIndex) const |
Returns the pole of index (UIndex,VIndex) to the poles table of the BSpline surface whose data is computed in this framework. Exceptions Standard_OutOfRange if, for the BSpline surface whose data is computed in this framework: More... | |
Standard_Real | Weight (const Standard_Integer UIndex, const Standard_Integer VIndex) const |
Returns the weight of the pole of index (UIndex,VIndex) to the poles table of the BSpline surface whose data is computed in this framework. Exceptions Standard_OutOfRange if, for the BSpline surface whose data is computed in this framework: More... | |
Standard_Real | UKnot (const Standard_Integer UIndex) const |
Returns the U-knot of range UIndex. Raised if UIndex < 1 or UIndex > NbUKnots. More... | |
Standard_Real | VKnot (const Standard_Integer UIndex) const |
Returns the V-knot of range VIndex. Raised if VIndex < 1 or VIndex > NbVKnots. More... | |
Standard_Integer | UMultiplicity (const Standard_Integer UIndex) const |
Returns the multiplicity of the U-knot of range UIndex. Raised if UIndex < 1 or UIndex > NbUKnots. More... | |
Standard_Integer | VMultiplicity (const Standard_Integer VIndex) const |
Returns the multiplicity of the V-knot of range VIndex. Raised if VIndex < 1 or VIndex > NbVKnots. More... | |
Additional Inherited Members | |
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Convert_ElementarySurfaceToBSplineSurface (const Standard_Integer NumberOfUPoles, const Standard_Integer NumberOfVPoles, const Standard_Integer NumberOfUKnots, const Standard_Integer NumberOfVKnots, const Standard_Integer UDegree, const Standard_Integer VDegree) | |
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TColgp_Array2OfPnt | poles |
TColStd_Array2OfReal | weights |
TColStd_Array1OfReal | uknots |
TColStd_Array1OfInteger | umults |
TColStd_Array1OfReal | vknots |
TColStd_Array1OfInteger | vmults |
Standard_Integer | udegree |
Standard_Integer | vdegree |
Standard_Integer | nbUPoles |
Standard_Integer | nbVPoles |
Standard_Integer | nbUKnots |
Standard_Integer | nbVKnots |
Standard_Boolean | isuperiodic |
Standard_Boolean | isvperiodic |
This algorithm converts a bounded Sphere into a rational B-spline surface. The sphere is a Sphere from package gp. The parametrization of the sphere is P (U, V) = Loc + Radius * Sin(V) * Zdir + Radius * Cos(V) * (Cos(U)*Xdir + Sin(U)*Ydir) where Loc is the center of the sphere Xdir, Ydir and Zdir are the normalized directions of the local cartesian coordinate system of the sphere. The parametrization range is U [0, 2PI] and V [-PI/2, PI/2]. KeyWords : Convert, Sphere, BSplineSurface.
Convert_SphereToBSplineSurface::Convert_SphereToBSplineSurface | ( | const gp_Sphere & | Sph, |
const Standard_Real | U1, | ||
const Standard_Real | U2, | ||
const Standard_Real | V1, | ||
const Standard_Real | V2 | ||
) |
The equivalent B-spline surface as the same orientation as the sphere in the U and V parametric directions.
Raised if U1 = U2 or U1 = U2 + 2.0 * Pi Raised if V1 = V2.
Convert_SphereToBSplineSurface::Convert_SphereToBSplineSurface | ( | const gp_Sphere & | Sph, |
const Standard_Real | Param1, | ||
const Standard_Real | Param2, | ||
const Standard_Boolean | UTrim = Standard_True |
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) |
The equivalent B-spline surface as the same orientation as the sphere in the U and V parametric directions.
Raised if UTrim = True and Param1 = Param2 or Param1 = Param2 + 2.0 * Pi Raised if UTrim = False and Param1 = Param2
Convert_SphereToBSplineSurface::Convert_SphereToBSplineSurface | ( | const gp_Sphere & | Sph | ) |
The equivalent B-spline surface as the same orientation as the sphere in the U and V parametric directions.