#include <Geom_CylindricalSurface.hxx>
Inheritance diagram for Geom_CylindricalSurface:
Public Member Functions | |
Standard_EXPORT | Geom_CylindricalSurface (const gp_Ax3 &A3, const Standard_Real Radius) |
A3 defines the local coordinate system of the cylindrical surface. The "ZDirection" of A3 defines the direction of the surface's axis of symmetry. At the creation the parametrization of the surface is defined such that the normal Vector (N = D1U ^ D1V) is oriented towards the "outside region" of the surface. Warnings : It is not forbidden to create a cylindrical surface with Radius = 0.0 //! Raised if Radius < 0.0 . | |
Standard_EXPORT | Geom_CylindricalSurface (const gp_Cylinder &C) |
Creates a CylindricalSurface from a non transient Cylinder from package gp. . | |
Standard_EXPORT void | SetCylinder (const gp_Cylinder &C) |
Set <me> so that <me> has the same geometric properties as C. . | |
Standard_EXPORT void | SetRadius (const Standard_Real R) |
Changes the radius of the cylinder. //! Raised if R < 0.0 . | |
Standard_EXPORT gp_Cylinder | Cylinder () const |
returns a non transient cylinder with the same geometric properties as <me>. | |
Standard_EXPORT Standard_Real | UReversedParameter (const Standard_Real U) const |
Return the parameter on the Ureversed surface for the point of parameter U on <me>. Return 2.PI - U. . | |
Standard_EXPORT Standard_Real | VReversedParameter (const Standard_Real V) const |
Return the parameter on the Vreversed surface for the point of parameter V on <me>. Return -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 multiplies V by T.ScaleFactor() . | |
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 a scale centered on the U axis with T.ScaleFactor . | |
Standard_EXPORT void | Bounds (Standard_Real &U1, Standard_Real &U2, Standard_Real &V1, Standard_Real &V2) const |
The CylindricalSurface is infinite in the V direction so V1 = Realfirst, V2 = RealLast from package Standard. U1 = 0 and U2 = 2*PI. . | |
Standard_EXPORT void | Coefficients (Standard_Real &A1, Standard_Real &A2, Standard_Real &A3, Standard_Real &B1, Standard_Real &B2, Standard_Real &B3, Standard_Real &C1, Standard_Real &C2, Standard_Real &C3, Standard_Real &D) const |
Returns the coefficients of the implicit equation of the quadric in the absolute cartesian coordinate system : These coefficients are normalized. A1.X**2 + A2.Y**2 + A3.Z**2 + 2.(B1.X.Y + B2.X.Z + B3.Y.Z) + 2.(C1.X + C2.Y + C3.Z) + D = 0.0 . | |
Standard_EXPORT Standard_Real | Radius () const |
Returns the radius of this cylinder. . | |
Standard_EXPORT Standard_Boolean | IsUClosed () const |
Returns True. . | |
Standard_EXPORT Standard_Boolean | IsVClosed () const |
Returns False. . | |
Standard_EXPORT Standard_Boolean | IsUPeriodic () const |
Returns True. . | |
Standard_EXPORT Standard_Boolean | IsVPeriodic () const |
Returns False. . | |
Standard_EXPORT Handle_Geom_Curve | UIso (const Standard_Real U) const |
The UIso curve is a Line. The location point of this line is on the placement plane (XAxis, YAxis) of the surface. This line is parallel to the axis of symmetry of the surface. . | |
Standard_EXPORT Handle_Geom_Curve | VIso (const Standard_Real V) const |
The VIso curve is a circle. The start point of this circle (U = 0) is defined with the "XAxis" of the surface. The center of the circle is on the symmetry axis. . | |
Standard_EXPORT void | D0 (const Standard_Real U, const Standard_Real V, gp_Pnt &P) const |
Computes the point P (U, V) on the surface. P (U, V) = Loc + Radius * (cos (U) * XDir + sin (U) * YDir) + V * ZDir where Loc is the origin of the placement plane (XAxis, YAxis) XDir is the direction of the XAxis and YDir the direction of the YAxis. . | |
Standard_EXPORT void | D1 (const Standard_Real U, const Standard_Real V, gp_Pnt &P, gp_Vec &D1U, gp_Vec &D1V) const |
Computes the current point and the first derivatives in the directions U and V. . | |
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 |
Computes the current point, the first and the second derivatives in the directions U and V. . | |
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 |
Computes the current point, the first, the second and the third derivatives in the directions U and V. . | |
Standard_EXPORT gp_Vec | DN (const Standard_Real U, const Standard_Real V, const Standard_Integer Nu, const Standard_Integer Nv) const |
Computes the derivative of order Nu in the direction u and Nv in the direction v. //! Raised if Nu + Nv < 1 or Nu < 0 or Nv < 0. . | |
Standard_EXPORT void | Transform (const gp_Trsf &T) |
Applies the transformation T to this cylinder. . | |
Standard_EXPORT Handle_Geom_Geometry | Copy () const |
Creates a new object which is a copy of this cylinder. . | |
Standard_EXPORT const | Handle (Standard_Type)&DynamicType() const |
Private Attributes | |
Standard_Real | radius |
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Implements Geom_Surface. |
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Implements Geom_Geometry. |
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Implements Geom_Surface. |
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Implements Geom_Surface. |
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Implements Geom_Surface. |
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Implements Geom_Surface. |
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Implements Geom_Surface. |
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Reimplemented from Geom_ElementarySurface. |
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Implements Geom_Surface. |
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Implements Geom_Surface. |
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Implements Geom_Surface. |
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Implements Geom_Surface. |
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Reimplemented from Geom_Surface. |
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Implements Geom_Geometry. |
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Reimplemented from Geom_Surface. |
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Implements Geom_Surface. |
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Implements Geom_ElementarySurface. |
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Implements Geom_Surface. |
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Implements Geom_ElementarySurface. |
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