Open CASCADE Technology 7.8.0
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This algorithm converts a bounded Torus into a rational B-spline surface. The torus is a Torus from package gp. The parametrization of the torus is : P (U, V) = Loc + MinorRadius * Sin(V) * Zdir + (MajorRadius+MinorRadius*Cos(V)) * (Cos(U)*Xdir + Sin(U)*Ydir) where Loc is the center of the torus, Xdir, Ydir and Zdir are the normalized directions of the local cartesian coordinate system of the Torus. The parametrization range is U [0, 2PI], V [0, 2PI]. KeyWords : Convert, Torus, BSplineSurface. More...
#include <Convert_TorusToBSplineSurface.hxx>
Public Member Functions | |
Convert_TorusToBSplineSurface (const gp_Torus &T, 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 torus in the U and V parametric directions. | |
Convert_TorusToBSplineSurface (const gp_Torus &T, 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 torus in the U and V parametric directions. | |
Convert_TorusToBSplineSurface (const gp_Torus &T) | |
The equivalent B-spline surface as the same orientation as the torus in the U and V parametric directions. | |
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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. | |
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. | |
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 . | |
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. | |
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: | |
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: | |
Standard_Real | UKnot (const Standard_Integer UIndex) const |
Returns the U-knot of range UIndex. Raised if UIndex < 1 or UIndex > NbUKnots. | |
Standard_Real | VKnot (const Standard_Integer UIndex) const |
Returns the V-knot of range VIndex. Raised if VIndex < 1 or VIndex > NbVKnots. | |
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. | |
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. | |
This algorithm converts a bounded Torus into a rational B-spline surface. The torus is a Torus from package gp. The parametrization of the torus is : P (U, V) = Loc + MinorRadius * Sin(V) * Zdir + (MajorRadius+MinorRadius*Cos(V)) * (Cos(U)*Xdir + Sin(U)*Ydir) where Loc is the center of the torus, Xdir, Ydir and Zdir are the normalized directions of the local cartesian coordinate system of the Torus. The parametrization range is U [0, 2PI], V [0, 2PI]. KeyWords : Convert, Torus, BSplineSurface.
Convert_TorusToBSplineSurface::Convert_TorusToBSplineSurface | ( | const gp_Torus & | T, |
const Standard_Real | U1, | ||
const Standard_Real | U2, | ||
const Standard_Real | V1, | ||
const Standard_Real | V2 | ||
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Convert_TorusToBSplineSurface::Convert_TorusToBSplineSurface | ( | const gp_Torus & | T, |
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 torus in the U and V parametric directions.
Raised if Param1 = Param2 or Param1 = Param2 + 2.0 * Pi
The equivalent B-spline surface as the same orientation as the torus in the U and V parametric directions.