Defines an infinite conical surface. A cone is defined by its half-angle (can be negative) at the apex and positioned in space with a coordinate system (a gp_Ax3 object) and a "reference radius" where:
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| constexpr | gp_Cone () noexcept |
| | Creates an indefinite Cone.
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| constexpr | gp_Cone (const gp_Ax3 &theA3, const double theAng, const double theRadius) |
| | Creates an infinite conical surface. theA3 locates the cone in the space and defines the reference plane of the surface. Ang is the conical surface semi-angle. Its absolute value is in range ]0, PI/2[. theRadius is the radius of the circle in the reference plane of the cone. theRaises ConstructionError.
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| void | SetAxis (const gp_Ax1 &theA1) |
| | Changes the symmetry axis of the cone. Raises ConstructionError the direction of theA1 is parallel to the "XDirection" of the coordinate system of the cone.
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| constexpr void | SetLocation (const gp_Pnt &theLoc) noexcept |
| | Changes the location of the cone.
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| constexpr void | SetPosition (const gp_Ax3 &theA3) noexcept |
| | Changes the local coordinate system of the cone. This coordinate system defines the reference plane of the cone.
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| void | SetRadius (const double theR) |
| | Changes the radius of the cone in the reference plane of the cone. Raised if theR < 0.0.
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| void | SetSemiAngle (const double theAng) |
| | Changes the semi-angle of the cone. Semi-angle can be negative. Its absolute value std::abs(theAng) is in range ]0,PI/2[. Raises ConstructionError if std::abs(theAng) < Resolution from gp or std::abs(theAng) >= PI/2.
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| gp_Pnt | Apex () const |
| | Computes the cone's top. The Apex of the cone is on the negative side of the symmetry axis of the cone.
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| constexpr void | UReverse () noexcept |
| | Reverses the U parametrization of the cone reversing the YAxis.
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| constexpr void | VReverse () noexcept |
| | Reverses the V parametrization of the cone reversing the ZAxis.
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| bool | Direct () const |
| | Returns true if the local coordinate system of this cone is right-handed.
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| constexpr const gp_Ax1 & | Axis () const noexcept |
| | returns the symmetry axis of the cone.
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| 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 : 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.
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| constexpr const gp_Pnt & | Location () const noexcept |
| | returns the "Location" point of the cone.
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| constexpr const gp_Ax3 & | Position () const noexcept |
| | Returns the local coordinates system of the cone.
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| constexpr double | RefRadius () const noexcept |
| | Returns the radius of the cone in the reference plane.
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| constexpr double | SemiAngle () const noexcept |
| | Returns the half-angle at the apex of this cone. Attention! Semi-angle can be negative.
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| constexpr gp_Ax1 | XAxis () const noexcept |
| | Returns the XAxis of the reference plane.
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| constexpr gp_Ax1 | YAxis () const noexcept |
| | Returns the YAxis of the reference plane.
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| void | Mirror (const gp_Pnt &theP) noexcept |
| gp_Cone | Mirrored (const gp_Pnt &theP) const noexcept |
| | Performs the symmetrical transformation of a cone with respect to the point theP which is the center of the symmetry.
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| void | Mirror (const gp_Ax1 &theA1) noexcept |
| gp_Cone | Mirrored (const gp_Ax1 &theA1) const noexcept |
| | Performs the symmetrical transformation of a cone with respect to an axis placement which is the axis of the symmetry.
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| void | Mirror (const gp_Ax2 &theA2) noexcept |
| gp_Cone | Mirrored (const gp_Ax2 &theA2) const noexcept |
| | Performs the symmetrical transformation of a cone with respect to a plane. The axis placement theA2 locates the plane of the of the symmetry : (Location, XDirection, YDirection).
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| void | Rotate (const gp_Ax1 &theA1, const double theAng) |
| gp_Cone | Rotated (const gp_Ax1 &theA1, const double theAng) const |
| | Rotates a cone. theA1 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 &theP, const double theS) |
| gp_Cone | Scaled (const gp_Pnt &theP, const double theS) const |
| | Scales a cone. theS is the scaling value. The absolute value of theS is used to scale the cone.
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| void | Transform (const gp_Trsf &theT) |
| gp_Cone | Transformed (const gp_Trsf &theT) const |
| | Transforms a cone with the transformation theT from class Trsf.
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| constexpr void | Translate (const gp_Vec &theV) noexcept |
| constexpr gp_Cone | Translated (const gp_Vec &theV) const noexcept |
| | Translates a cone in the direction of the vector theV. The magnitude of the translation is the vector's magnitude.
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| constexpr void | Translate (const gp_Pnt &theP1, const gp_Pnt &theP2) noexcept |
| constexpr gp_Cone | Translated (const gp_Pnt &theP1, const gp_Pnt &theP2) const noexcept |
| | Translates a cone from the point P1 to the point P2.
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Defines an infinite conical surface. A cone is defined by its half-angle (can be negative) at the apex and positioned in space with a coordinate system (a gp_Ax3 object) and a "reference radius" where:
- the "main Axis" of the coordinate system is the axis of revolution of the cone,
- the plane defined by the origin, the "X Direction" and the "Y Direction" of the coordinate system is the reference plane of the cone; the intersection of the cone with this reference plane is a circle of radius equal to the reference radius, if the half-angle is positive, the apex of the cone is on the negative side of the "main Axis" of the coordinate system. If the half-angle is negative, the apex is on the positive side. This coordinate system is the "local coordinate system" of the cone. Note: when a gp_Cone cone is converted into a Geom_ConicalSurface cone, 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 cone and the origin of the parameters,
- its implicit orientation (right-handed or left-handed) gives the orientation (direct or indirect) of the Geom_ConicalSurface cone. See Also gce_MakeCone which provides functions for more complex cone constructions Geom_ConicalSurface which provides additional functions for constructing cones and works, in particular, with the parametric equations of cones gp_Ax3