OCCT3D OCCT 8.0.1
OCCT documentation

Search guides and API reference

Enter at least two characters.

    Open CASCADE Technology Reference Manual 8.0.1
    gp_Sphere Class Reference

    Describes a sphere. A sphere is defined by its radius and positioned in space with a coordinate system (a gp_Ax3 object). The origin of the coordinate system is the center of the sphere. This coordinate system is the "local coordinate system" of the sphere. Note: when a gp_Sphere sphere is converted into a Geom_SphericalSurface sphere, some implicit properties of its local coordinate system are used explicitly: More...

    #include <gp_Sphere.hxx>

    Public Member Functions

    constexpr gp_Sphere () noexcept
     Creates an indefinite sphere.
    constexpr gp_Sphere (const gp_Ax3 &theA3, const double theRadius)
     Constructs a sphere with radius theRadius, centered on the origin of theA3. theA3 is the local coordinate system of the sphere. Warnings: It is not forbidden to create a sphere with null radius. Raises ConstructionError if theRadius < 0.0.
    constexpr void SetLocation (const gp_Pnt &theLoc) noexcept
     Changes the center of the sphere.
    constexpr void SetPosition (const gp_Ax3 &theA3) noexcept
     Changes the local coordinate system of the sphere.
    void SetRadius (const double theR)
     Assigns theR the radius of the Sphere. Warnings : It is not forbidden to create a sphere with null radius. Raises ConstructionError if theR < 0.0.
    constexpr double Area () const noexcept
     Computes the area of the sphere.
    void Coefficients (double &theA1, double &theA2, double &theA3, double &theB1, double &theB2, double &theB3, double &theC1, double &theC2, double &theC3, double &theD) const
     Computes the coefficients of the implicit equation of the quadric in the absolute cartesian coordinates system :
    constexpr void UReverse () noexcept
     Reverses the U parametrization of the sphere reversing the YAxis.
    constexpr void VReverse () noexcept
     Reverses the V parametrization of the sphere reversing the ZAxis.
    bool Direct () const
     Returns true if the local coordinate system of this sphere is right-handed.
    constexpr const gp_PntLocation () const noexcept
     — Purpose ; Returns the center of the sphere.
    constexpr const gp_Ax3Position () const noexcept
     Returns the local coordinates system of the sphere.
    constexpr double Radius () const noexcept
     Returns the radius of the sphere.
    constexpr double Volume () const noexcept
     Computes the volume of the sphere.
    constexpr gp_Ax1 XAxis () const noexcept
     Returns the axis X of the sphere.
    constexpr gp_Ax1 YAxis () const noexcept
     Returns the axis Y of the sphere.
    void Mirror (const gp_Pnt &theP) noexcept
    gp_Sphere Mirrored (const gp_Pnt &theP) const noexcept
     Performs the symmetrical transformation of a sphere with respect to the point theP which is the center of the symmetry.
    void Mirror (const gp_Ax1 &theA1) noexcept
    gp_Sphere Mirrored (const gp_Ax1 &theA1) const noexcept
     Performs the symmetrical transformation of a sphere with respect to an axis placement which is the axis of the symmetry.
    void Mirror (const gp_Ax2 &theA2) noexcept
    gp_Sphere Mirrored (const gp_Ax2 &theA2) const noexcept
     Performs the symmetrical transformation of a sphere with respect to a plane. The axis placement theA2 locates the plane of the of the symmetry : (Location, XDirection, YDirection).
    void Rotate (const gp_Ax1 &theA1, const double theAng)
    gp_Sphere Rotated (const gp_Ax1 &theA1, const double theAng) const
     Rotates a sphere. theA1 is the axis of the rotation. theAng is the angular value of the rotation in radians.
    void Scale (const gp_Pnt &theP, const double theS)
    gp_Sphere Scaled (const gp_Pnt &theP, const double theS) const
     Scales a sphere. theS is the scaling value. The absolute value of S is used to scale the sphere.
    void Transform (const gp_Trsf &theT)
    gp_Sphere Transformed (const gp_Trsf &theT) const
     Transforms a sphere with the transformation theT from class Trsf.
    constexpr void Translate (const gp_Vec &theV) noexcept
    constexpr gp_Sphere Translated (const gp_Vec &theV) const noexcept
     Translates a sphere in the direction of the vector theV. The magnitude of the translation is the vector's magnitude.
    constexpr void Translate (const gp_Pnt &theP1, const gp_Pnt &theP2) noexcept
    constexpr gp_Sphere Translated (const gp_Pnt &theP1, const gp_Pnt &theP2) const noexcept
     Translates a sphere from the point theP1 to the point theP2.

    Detailed Description

    Describes a sphere. A sphere is defined by its radius and positioned in space with a coordinate system (a gp_Ax3 object). The origin of the coordinate system is the center of the sphere. This coordinate system is the "local coordinate system" of the sphere. Note: when a gp_Sphere sphere is converted into a Geom_SphericalSurface sphere, some implicit properties of its local coordinate system are used explicitly:

    • its origin, "X Direction", "Y Direction" and "main Direction" are used directly to define the parametric directions on the sphere and the origin of the parameters,
    • its implicit orientation (right-handed or left-handed) gives the orientation (direct, indirect) to the Geom_SphericalSurface sphere. See Also gce_MakeSphere which provides functions for more complex sphere constructions Geom_SphericalSurface which provides additional functions for constructing spheres and works, in particular, with the parametric equations of spheres.

    Constructor & Destructor Documentation

    ◆ gp_Sphere() [1/2]

    gp_Sphere::gp_Sphere ( )
    inlineconstexprnoexcept

    Creates an indefinite sphere.

    ◆ gp_Sphere() [2/2]

    gp_Sphere::gp_Sphere ( const gp_Ax3 & theA3,
    const double theRadius )
    inlineconstexpr

    Constructs a sphere with radius theRadius, centered on the origin of theA3. theA3 is the local coordinate system of the sphere. Warnings: It is not forbidden to create a sphere with null radius. Raises ConstructionError if theRadius < 0.0.

    Member Function Documentation

    ◆ Area()

    double gp_Sphere::Area ( ) const
    inlineconstexprnoexcept

    Computes the area of the sphere.

    ◆ Coefficients()

    void gp_Sphere::Coefficients ( double & theA1,
    double & theA2,
    double & theA3,
    double & theB1,
    double & theB2,
    double & theB3,
    double & theC1,
    double & theC2,
    double & theC3,
    double & theD ) const

    Computes the coefficients of the implicit equation of the quadric in the absolute cartesian coordinates system :

    theA1.X**2 + theA2.Y**2 + theA3.Z**2 + 2.(theB1.X.Y + theB2.X.Z + theB3.Y.Z) +
    2.(theC1.X + theC2.Y + theC3.Z) + theD = 0.0

    ◆ Direct()

    bool gp_Sphere::Direct ( ) const
    inline

    Returns true if the local coordinate system of this sphere is right-handed.

    ◆ Location()

    const gp_Pnt & gp_Sphere::Location ( ) const
    inlineconstexprnoexcept

    — Purpose ; Returns the center of the sphere.

    ◆ Mirror() [1/3]

    void gp_Sphere::Mirror ( const gp_Ax1 & theA1)
    noexcept

    ◆ Mirror() [2/3]

    void gp_Sphere::Mirror ( const gp_Ax2 & theA2)
    noexcept

    ◆ Mirror() [3/3]

    void gp_Sphere::Mirror ( const gp_Pnt & theP)
    noexcept

    ◆ Mirrored() [1/3]

    gp_Sphere gp_Sphere::Mirrored ( const gp_Ax1 & theA1) const
    nodiscardnoexcept

    Performs the symmetrical transformation of a sphere with respect to an axis placement which is the axis of the symmetry.

    ◆ Mirrored() [2/3]

    gp_Sphere gp_Sphere::Mirrored ( const gp_Ax2 & theA2) const
    nodiscardnoexcept

    Performs the symmetrical transformation of a sphere with respect to a plane. The axis placement theA2 locates the plane of the of the symmetry : (Location, XDirection, YDirection).

    ◆ Mirrored() [3/3]

    gp_Sphere gp_Sphere::Mirrored ( const gp_Pnt & theP) const
    nodiscardnoexcept

    Performs the symmetrical transformation of a sphere with respect to the point theP which is the center of the symmetry.

    ◆ Position()

    const gp_Ax3 & gp_Sphere::Position ( ) const
    inlineconstexprnoexcept

    Returns the local coordinates system of the sphere.

    ◆ Radius()

    double gp_Sphere::Radius ( ) const
    inlineconstexprnoexcept

    Returns the radius of the sphere.

    ◆ Rotate()

    void gp_Sphere::Rotate ( const gp_Ax1 & theA1,
    const double theAng )
    inline

    ◆ Rotated()

    gp_Sphere gp_Sphere::Rotated ( const gp_Ax1 & theA1,
    const double theAng ) const
    inlinenodiscard

    Rotates a sphere. theA1 is the axis of the rotation. theAng is the angular value of the rotation in radians.

    ◆ Scale()

    void gp_Sphere::Scale ( const gp_Pnt & theP,
    const double theS )
    inline

    ◆ Scaled()

    gp_Sphere gp_Sphere::Scaled ( const gp_Pnt & theP,
    const double theS ) const
    inlinenodiscard

    Scales a sphere. theS is the scaling value. The absolute value of S is used to scale the sphere.

    ◆ SetLocation()

    void gp_Sphere::SetLocation ( const gp_Pnt & theLoc)
    inlineconstexprnoexcept

    Changes the center of the sphere.

    ◆ SetPosition()

    void gp_Sphere::SetPosition ( const gp_Ax3 & theA3)
    inlineconstexprnoexcept

    Changes the local coordinate system of the sphere.

    ◆ SetRadius()

    void gp_Sphere::SetRadius ( const double theR)
    inline

    Assigns theR the radius of the Sphere. Warnings : It is not forbidden to create a sphere with null radius. Raises ConstructionError if theR < 0.0.

    ◆ Transform()

    void gp_Sphere::Transform ( const gp_Trsf & theT)
    inline

    ◆ Transformed()

    gp_Sphere gp_Sphere::Transformed ( const gp_Trsf & theT) const
    inlinenodiscard

    Transforms a sphere with the transformation theT from class Trsf.

    ◆ Translate() [1/2]

    void gp_Sphere::Translate ( const gp_Pnt & theP1,
    const gp_Pnt & theP2 )
    inlineconstexprnoexcept

    ◆ Translate() [2/2]

    void gp_Sphere::Translate ( const gp_Vec & theV)
    inlineconstexprnoexcept

    ◆ Translated() [1/2]

    gp_Sphere gp_Sphere::Translated ( const gp_Pnt & theP1,
    const gp_Pnt & theP2 ) const
    inlinenodiscardconstexprnoexcept

    Translates a sphere from the point theP1 to the point theP2.

    ◆ Translated() [2/2]

    gp_Sphere gp_Sphere::Translated ( const gp_Vec & theV) const
    inlinenodiscardconstexprnoexcept

    Translates a sphere in the direction of the vector theV. The magnitude of the translation is the vector's magnitude.

    ◆ UReverse()

    void gp_Sphere::UReverse ( )
    inlineconstexprnoexcept

    Reverses the U parametrization of the sphere reversing the YAxis.

    ◆ Volume()

    double gp_Sphere::Volume ( ) const
    inlineconstexprnoexcept

    Computes the volume of the sphere.

    ◆ VReverse()

    void gp_Sphere::VReverse ( )
    inlineconstexprnoexcept

    Reverses the V parametrization of the sphere reversing the ZAxis.

    ◆ XAxis()

    gp_Ax1 gp_Sphere::XAxis ( ) const
    inlineconstexprnoexcept

    Returns the axis X of the sphere.

    ◆ YAxis()

    gp_Ax1 gp_Sphere::YAxis ( ) const
    inlineconstexprnoexcept

    Returns the axis Y of the sphere.


    The documentation for this class was generated from the following file: