#include <Geom_Surface.hxx>
Inheritance diagram for Geom_Surface:
Public Member Functions | |
virtual Standard_EXPORT void | UReverse ()=0 |
Reverses the U direction of parametrization of <me>. The bounds of the surface are not modified. . | |
Standard_EXPORT Handle_Geom_Surface | UReversed () const |
Reverses the U direction of parametrization of <me>. The bounds of the surface are not modified. A copy of <me> is returned. . | |
virtual Standard_EXPORT Standard_Real | UReversedParameter (const Standard_Real U) const =0 |
Returns the parameter on the Ureversed surface for the point of parameter U on <me>. me->UReversed()->Value(me->UReversedParameter(U),V) is the same point as me->Value(U,V) . | |
virtual Standard_EXPORT void | VReverse ()=0 |
Reverses the V direction of parametrization of <me>. The bounds of the surface are not modified. . | |
Standard_EXPORT Handle_Geom_Surface | VReversed () const |
Reverses the V direction of parametrization of <me>. The bounds of the surface are not modified. A copy of <me> is returned. . | |
virtual Standard_EXPORT Standard_Real | VReversedParameter (const Standard_Real V) const =0 |
Returns the parameter on the Vreversed surface for the point of parameter V on <me>. me->VReversed()->Value(U,me->VReversedParameter(V)) is the same point as me->Value(U,V) . | |
virtual Standard_EXPORT void | TransformParameters (Standard_Real &U, Standard_Real &V, const gp_Trsf &T) const |
Computes the parameters on the transformed surface for the transform of the point of parameters U,V on <me>. me->Transformed(T)->Value(U',V') is the same point as me->Value(U,V).Transformed(T) Where U',V' are the new values of U,V after calling me->TranformParameters(U,V,T) This methods does not change <u> and <v> It can be redefined. For example on the Plane, Cylinder, Cone, Revolved and Extruded surfaces. . | |
virtual Standard_EXPORT gp_GTrsf2d | ParametricTransformation (const gp_Trsf &T) const |
Returns a 2d transformation used to find the new parameters of a point on the transformed surface. me->Transformed(T)->Value(U',V') is the same point as me->Value(U,V).Transformed(T) Where U',V' are obtained by transforming U,V with th 2d transformation returned by me->ParametricTransformation(T) This methods returns an identity transformation It can be redefined. For example on the Plane, Cylinder, Cone, Revolved and Extruded surfaces. . | |
virtual Standard_EXPORT void | Bounds (Standard_Real &U1, Standard_Real &U2, Standard_Real &V1, Standard_Real &V2) const =0 |
Returns the parametric bounds U1, U2, V1 and V2 of this surface. If the surface is infinite, this function can return a value equal to Precision::Infinite: instead of Standard_Real::LastReal. . | |
virtual Standard_EXPORT Standard_Boolean | IsUClosed () const =0 |
Checks whether this surface is closed in the u parametric direction. Returns true if, in the u parametric direction: taking uFirst and uLast as the parametric bounds in the u parametric direction, for each parameter v, the distance between the points P(uFirst, v) and P(uLast, v) is less than or equal to gp::Resolution(). . | |
virtual Standard_EXPORT Standard_Boolean | IsVClosed () const =0 |
Checks whether this surface is closed in the u parametric direction. Returns true if, in the v parametric direction: taking vFirst and vLast as the parametric bounds in the v parametric direction, for each parameter u, the distance between the points P(u, vFirst) and P(u, vLast) is less than or equal to gp::Resolution(). . | |
virtual Standard_EXPORT Standard_Boolean | IsUPeriodic () const =0 |
Checks if this surface is periodic in the u parametric direction. Returns true if: - this surface is closed in the u parametric direction, and - there is a constant T such that the distance between the points P (u, v) and P (u + T, v) (or the points P (u, v) and P (u, v + T)) is less than or equal to gp::Resolution(). Note: T is the parametric period in the u parametric direction. . | |
virtual Standard_EXPORT Standard_Real | UPeriod () const |
Returns the period of this surface in the u parametric direction. //! raises if the surface is not uperiodic. . | |
virtual Standard_EXPORT Standard_Boolean | IsVPeriodic () const =0 |
Checks if this surface is periodic in the v parametric direction. Returns true if: - this surface is closed in the v parametric direction, and - there is a constant T such that the distance between the points P (u, v) and P (u + T, v) (or the points P (u, v) and P (u, v + T)) is less than or equal to gp::Resolution(). Note: T is the parametric period in the v parametric direction. . | |
virtual Standard_EXPORT Standard_Real | VPeriod () const |
Returns the period of this surface in the v parametric direction. //! raises if the surface is not vperiodic. . | |
virtual Standard_EXPORT Handle_Geom_Curve | UIso (const Standard_Real U) const =0 |
Computes the U isoparametric curve. . | |
virtual Standard_EXPORT Handle_Geom_Curve | VIso (const Standard_Real V) const =0 |
Computes the V isoparametric curve. . | |
virtual Standard_EXPORT GeomAbs_Shape | Continuity () const =0 |
Returns the Global Continuity of the surface in direction U and V : C0 : only geometric continuity, C1 : continuity of the first derivative all along the surface, C2 : continuity of the second derivative all along the surface, C3 : continuity of the third derivative all along the surface, G1 : tangency continuity all along the surface, G2 : curvature continuity all along the surface, CN : the order of continuity is infinite. Example : If the surface is C1 in the V parametric direction and C2 in the U parametric direction Shape = C1. . | |
virtual Standard_EXPORT Standard_Boolean | IsCNu (const Standard_Integer N) const =0 |
Returns the order of continuity of the surface in the U parametric direction. //! Raised if N < 0. . | |
virtual Standard_EXPORT Standard_Boolean | IsCNv (const Standard_Integer N) const =0 |
Returns the order of continuity of the surface in the V parametric direction. //! Raised if N < 0. . | |
virtual Standard_EXPORT void | D0 (const Standard_Real U, const Standard_Real V, gp_Pnt &P) const =0 |
Computes the point of parameter U,V on the surface. Raised only for an "OffsetSurface" if it is not possible to compute the current point. . | |
virtual Standard_EXPORT void | D1 (const Standard_Real U, const Standard_Real V, gp_Pnt &P, gp_Vec &D1U, gp_Vec &D1V) const =0 |
Computes the point P and the first derivatives in the directions U and V at this point. //! Raised if the continuity of the surface is not C1. . | |
virtual Standard_EXPORT void | D2 (const Standard_Real U, const Standard_Real V, gp_Pnt &P, gp_Vec &D1U, gp_Vec &D1V, gp_Vec &D2U, gp_Vec &D2V, gp_Vec &D2UV) const =0 |
Computes the point P, the first and the second derivatives in the directions U and V at this point. //! Raised if the continuity of the surface is not C2. . | |
virtual Standard_EXPORT void | D3 (const Standard_Real U, const Standard_Real V, gp_Pnt &P, gp_Vec &D1U, gp_Vec &D1V, gp_Vec &D2U, gp_Vec &D2V, gp_Vec &D2UV, gp_Vec &D3U, gp_Vec &D3V, gp_Vec &D3UUV, gp_Vec &D3UVV) const =0 |
Computes the point P, the first,the second and the third derivatives in the directions U and V at this point. //! Raised if the continuity of the surface is not C2. . | |
virtual Standard_EXPORT gp_Vec | DN (const Standard_Real U, const Standard_Real V, const Standard_Integer Nu, const Standard_Integer Nv) const =0 |
---Purpose ; Computes the derivative of order Nu in the direction U and Nv in the direction V at the point P(U, V). Raised if the continuity of the surface is not CNu in the U direction or not CNv in the V direction. //! Raised if Nu + Nv < 1 or Nu < 0 or Nv < 0. | |
Standard_EXPORT gp_Pnt | Value (const Standard_Real U, const Standard_Real V) const |
Computes the point of parameter U on the surface. It is implemented with D0 Raised only for an "OffsetSurface" if it is not possible to compute the current point. . | |
Standard_EXPORT const | Handle (Standard_Type)&DynamicType() const |
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Implemented in Geom_BezierSurface, Geom_BSplineSurface, Geom_ElementarySurface, Geom_OffsetSurface, Geom_RectangularTrimmedSurface, and Geom_SweptSurface. |
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Implemented in Geom_BezierSurface, Geom_BSplineSurface, Geom_ElementarySurface, Geom_OffsetSurface, Geom_RectangularTrimmedSurface, Geom_SurfaceOfLinearExtrusion, and Geom_SurfaceOfRevolution. |
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Implemented in Geom_BezierSurface, Geom_BSplineSurface, Geom_ElementarySurface, Geom_OffsetSurface, Geom_RectangularTrimmedSurface, Geom_SurfaceOfLinearExtrusion, and Geom_SurfaceOfRevolution. |
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Reimplemented in Geom_ConicalSurface, Geom_CylindricalSurface, Geom_OffsetSurface, Geom_Plane, Geom_RectangularTrimmedSurface, Geom_SurfaceOfLinearExtrusion, and Geom_SurfaceOfRevolution. |
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Reimplemented in Geom_ConicalSurface, Geom_CylindricalSurface, Geom_OffsetSurface, Geom_Plane, Geom_RectangularTrimmedSurface, Geom_SurfaceOfLinearExtrusion, and Geom_SurfaceOfRevolution. |
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Reimplemented in Geom_OffsetSurface, and Geom_RectangularTrimmedSurface. |
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Reimplemented in Geom_OffsetSurface, and Geom_RectangularTrimmedSurface. |
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