Describes the common behavior for surfaces constructed by sweeping a curve with another curve. The Geom package provides two concrete derived surfaces: surface of revolution (a revolved surface), and surface of linear extrusion (an extruded surface).
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| GeomAbs_Shape | Continuity () const override |
| | returns the continuity of the surface : 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.
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| const gp_Dir & | Direction () const |
| | Returns the reference direction of the swept surface. For a surface of revolution it is the direction of the revolution axis, for a surface of linear extrusion it is the direction of extrusion.
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| occ::handle< Geom_Curve > | BasisCurve () const |
| | Returns the referenced curve of the surface. For a surface of revolution it is the revolution curve, for a surface of linear extrusion it is the extruded curve.
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| void | DumpJson (Standard_OStream &theOStream, int theDepth=-1) const override |
| | Dumps the content of me into the stream.
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| virtual void | UReverse ()=0 |
| | Reverses the U direction of parametrization of <me>. The bounds of the surface are not modified.
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| occ::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.
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| virtual double | UReversedParameter (const double U) const =0 |
| | Returns the parameter on the Ureversed surface for the point of parameter U on <me>.
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| virtual void | VReverse ()=0 |
| | Reverses the V direction of parametrization of <me>. The bounds of the surface are not modified.
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| occ::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.
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| virtual double | VReversedParameter (const double V) const =0 |
| | Returns the parameter on the Vreversed surface for the point of parameter V on <me>.
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| virtual void | TransformParameters (double &U, double &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>.
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| virtual 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.
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| virtual void | Bounds (double &U1, double &U2, double &V1, double &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 double::LastReal.
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| virtual bool | 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().
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| virtual bool | 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().
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| virtual bool | IsUPeriodic () const =0 |
| | Checks if this surface is periodic in the u parametric direction. Returns true if:
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| virtual double | UPeriod () const |
| | Returns the period of this surface in the u parametric direction. Raises if the surface is not uperiodic.
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| virtual bool | IsVPeriodic () const =0 |
| | Checks if this surface is periodic in the v parametric direction. Returns true if:
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| virtual double | VPeriod () const |
| | Returns the period of this surface in the v parametric direction. raises if the surface is not vperiodic.
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| virtual occ::handle< Geom_Curve > | UIso (const double U) const =0 |
| | Computes the U isoparametric curve.
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| virtual occ::handle< Geom_Curve > | VIso (const double V) const =0 |
| | Computes the V isoparametric curve.
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| virtual bool | IsCNu (const int N) const =0 |
| | Returns the order of continuity of the surface in the U parametric direction. Raised if N < 0.
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| virtual bool | IsCNv (const int N) const =0 |
| | Returns the order of continuity of the surface in the V parametric direction. Raised if N < 0.
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| virtual gp_Pnt | EvalD0 (const double U, const double V) const =0 |
| | Computes the point of parameter (U, V) on the surface. Raises an exception on failure.
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| virtual ResD1 | EvalD1 (const double U, const double V) const =0 |
| | Computes the point and first partial derivatives at (U, V). Raises an exception if the surface continuity is not C1.
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| virtual ResD2 | EvalD2 (const double U, const double V) const =0 |
| | Computes the point and partial derivatives up to 2nd order at (U, V). Raises an exception if the surface continuity is not C2.
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| virtual ResD3 | EvalD3 (const double U, const double V) const =0 |
| | Computes the point and partial derivatives up to 3rd order at (U, V). Raises an exception if the surface continuity is not C3.
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| virtual gp_Vec | EvalDN (const double U, const double V, const int Nu, const int Nv) const =0 |
| | Computes the derivative of order Nu in U and Nv in V at the point (U, V). Raises an exception on failure.
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| void | D0 (const double U, const double V, gp_Pnt &P) const |
| | Computes the point of parameter (U, V).
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| void | D1 (const double U, const double V, gp_Pnt &P, gp_Vec &D1U, gp_Vec &D1V) const |
| | Computes the point and first partial derivatives.
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| void | D2 (const double U, const double V, gp_Pnt &P, gp_Vec &D1U, gp_Vec &D1V, gp_Vec &D2U, gp_Vec &D2V, gp_Vec &D2UV) const |
| | Computes the point and partial derivatives up to 2nd order.
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| void | D3 (const double U, const double 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 point and partial derivatives up to 3rd order.
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| gp_Vec | DN (const double U, const double V, const int Nu, const int Nv) const |
| | Computes the derivative of order Nu in U and Nv in V.
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| gp_Pnt | Value (const double U, const double V) const |
| | Computes the point of parameter (U, V) on the surface.
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| void | Mirror (const gp_Pnt &P) |
| | Performs the symmetrical transformation of a Geometry with respect to the point P which is the center of the symmetry.
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| void | Mirror (const gp_Ax1 &A1) |
| | Performs the symmetrical transformation of a Geometry with respect to an axis placement which is the axis of the symmetry.
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| void | Mirror (const gp_Ax2 &A2) |
| | Performs the symmetrical transformation of a Geometry with respect to a plane. The axis placement A2 locates the plane of the symmetry : (Location, XDirection, YDirection).
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| void | Rotate (const gp_Ax1 &A1, const double Ang) |
| | Rotates a Geometry. A1 is the axis of the rotation. Ang is the angular value of the rotation in radians.
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| void | Scale (const gp_Pnt &P, const double S) |
| | Scales a Geometry. S is the scaling value.
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| void | Translate (const gp_Vec &V) |
| | Translates a Geometry. V is the vector of the translation.
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| void | Translate (const gp_Pnt &P1, const gp_Pnt &P2) |
| | Translates a Geometry from the point P1 to the point P2.
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| virtual void | Transform (const gp_Trsf &T)=0 |
| | Transformation of a geometric object. This transformation can be a translation, a rotation, a symmetry, a scaling or a complex transformation obtained by combination of the previous elementaries transformations. (see class Transformation of the package Geom).
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| occ::handle< Geom_Geometry > | Mirrored (const gp_Pnt &P) const |
| occ::handle< Geom_Geometry > | Mirrored (const gp_Ax1 &A1) const |
| occ::handle< Geom_Geometry > | Mirrored (const gp_Ax2 &A2) const |
| occ::handle< Geom_Geometry > | Rotated (const gp_Ax1 &A1, const double Ang) const |
| occ::handle< Geom_Geometry > | Scaled (const gp_Pnt &P, const double S) const |
| occ::handle< Geom_Geometry > | Transformed (const gp_Trsf &T) const |
| occ::handle< Geom_Geometry > | Translated (const gp_Vec &V) const |
| occ::handle< Geom_Geometry > | Translated (const gp_Pnt &P1, const gp_Pnt &P2) const |
| virtual occ::handle< Geom_Geometry > | Copy () const =0 |
| | Creates a new object which is a copy of this geometric object.
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| Public Member Functions inherited from Standard_Transient |
| | Standard_Transient () |
| | Empty constructor.
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| | Standard_Transient (const Standard_Transient &) |
| | Copy constructor – does nothing.
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| Standard_Transient & | operator= (const Standard_Transient &) |
| | Assignment operator, needed to avoid copying reference counter.
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| virtual | ~Standard_Transient ()=default |
| | Destructor must be virtual.
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| virtual const opencascade::handle< Standard_Type > & | DynamicType () const |
| | Returns a type descriptor about this object.
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| bool | IsInstance (const opencascade::handle< Standard_Type > &theType) const |
| | Returns a true value if this is an instance of Type.
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| bool | IsInstance (const char *const theTypeName) const |
| | Returns a true value if this is an instance of TypeName.
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| bool | IsKind (const opencascade::handle< Standard_Type > &theType) const |
| | Returns true if this is an instance of Type or an instance of any class that inherits from Type. Note that multiple inheritance is not supported by OCCT RTTI mechanism.
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| bool | IsKind (const char *const theTypeName) const |
| | Returns true if this is an instance of TypeName or an instance of any class that inherits from TypeName. Note that multiple inheritance is not supported by OCCT RTTI mechanism.
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| Standard_Transient * | This () const |
| | Returns non-const pointer to this object (like const_cast). For protection against creating handle to objects allocated in stack or call from constructor, it will raise exception Standard_ProgramError if reference counter is zero.
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| int | GetRefCount () const noexcept |
| | Get the reference counter of this object.
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| void | IncrementRefCounter () noexcept |
| | Increments the reference counter of this object. Uses relaxed memory ordering since incrementing only requires atomicity, not synchronization with other memory operations.
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| int | DecrementRefCounter () noexcept |
| | Decrements the reference counter of this object; returns the decremented value. Uses release ordering for the decrement to ensure all writes to the object are visible before the count reaches zero. An acquire fence is added only when the count reaches zero, ensuring proper synchronization before deletion. This is more efficient than using acq_rel for every decrement.
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| virtual void | Delete () const |
| | Memory deallocator for transient classes.
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Describes the common behavior for surfaces constructed by sweeping a curve with another curve. The Geom package provides two concrete derived surfaces: surface of revolution (a revolved surface), and surface of linear extrusion (an extruded surface).
1.17.0