Describes an infinite cylindrical surface. A cylinder is defined by its radius and positioned in space with a coordinate system (a gp_Ax3 object), the "main Axis" of which is the axis of the cylinder. This coordinate system is the "local coordinate system" of the cylinder. Note: when a gp_Cylinder cylinder is converted into a Geom_CylindricalSurface cylinder, some implicit properties of its local coordinate system are used explicitly: More...

#include <gp_Cylinder.hxx>

Public Member Functions
constexpr	gp_Cylinder () noexcept
	Creates a indefinite cylinder.

constexpr	gp_Cylinder (const gp_Ax3 &theA3, const double theRadius)
	Creates a cylinder of radius Radius, whose axis is the "main Axis" of theA3. theA3 is the local coordinate system of the cylinder. Raises ConstructionErrord if theRadius < 0.0.

void	SetAxis (const gp_Ax1 &theA1)
	Changes the symmetry axis of the cylinder. Raises ConstructionError if the direction of theA1 is parallel to the "XDirection" of the coordinate system of the cylinder.

constexpr void	SetLocation (const gp_Pnt &theLoc) noexcept
	Changes the location of the surface.

constexpr void	SetPosition (const gp_Ax3 &theA3) noexcept
	Change the local coordinate system of the surface.

void	SetRadius (const double theR)
	Modifies the radius of this cylinder. Exceptions Standard_ConstructionError if theR is negative.

constexpr void	UReverse () noexcept
	Reverses the U parametrization of the cylinder reversing the YAxis.

constexpr void	VReverse () noexcept
	Reverses the V parametrization of the plane reversing the Axis.

bool	Direct () const
	Returns true if the local coordinate system of this cylinder is right-handed.

constexpr const gp_Ax1 &	Axis () const noexcept
	Returns the symmetry axis of the cylinder.

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 coordinate system : theA1.X2 + theA2.Y2 + theA3.Z**2 + 2.(theB1.X.Y + theB2.X.Z + theB3.Y.Z) + 2.(theC1.X + theC2.Y + theC3.Z) + theD = 0.0.

constexpr const gp_Pnt &	Location () const noexcept
	Returns the "Location" point of the cylinder.

constexpr const gp_Ax3 &	Position () const noexcept
	Returns the local coordinate system of the cylinder.

constexpr double	Radius () const noexcept
	Returns the radius of the cylinder.

constexpr gp_Ax1	XAxis () const noexcept
	Returns the axis X of the cylinder.

constexpr gp_Ax1	YAxis () const noexcept
	Returns the axis Y of the cylinder.

void	Mirror (const gp_Pnt &theP) noexcept

gp_Cylinder	Mirrored (const gp_Pnt &theP) const noexcept
	Performs the symmetrical transformation of a cylinder with respect to the point theP which is the center of the symmetry.

void	Mirror (const gp_Ax1 &theA1) noexcept

gp_Cylinder	Mirrored (const gp_Ax1 &theA1) const noexcept
	Performs the symmetrical transformation of a cylinder with respect to an axis placement which is the axis of the symmetry.

void	Mirror (const gp_Ax2 &theA2) noexcept

gp_Cylinder	Mirrored (const gp_Ax2 &theA2) const noexcept
	Performs the symmetrical transformation of a cylinder 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_Cylinder	Rotated (const gp_Ax1 &theA1, const double theAng) const
	Rotates a cylinder. 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_Cylinder	Scaled (const gp_Pnt &theP, const double theS) const
	Scales a cylinder. theS is the scaling value. The absolute value of theS is used to scale the cylinder.

void	Transform (const gp_Trsf &theT)

gp_Cylinder	Transformed (const gp_Trsf &theT) const
	Transforms a cylinder with the transformation theT from class Trsf.

constexpr void	Translate (const gp_Vec &theV) noexcept

constexpr gp_Cylinder	Translated (const gp_Vec &theV) const noexcept
	Translates a cylinder 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_Cylinder	Translated (const gp_Pnt &theP1, const gp_Pnt &theP2) const noexcept
	Translates a cylinder from the point theP1 to the point theP2.

Detailed Description

Describes an infinite cylindrical surface. A cylinder is defined by its radius and positioned in space with a coordinate system (a gp_Ax3 object), the "main Axis" of which is the axis of the cylinder. This coordinate system is the "local coordinate system" of the cylinder. Note: when a gp_Cylinder cylinder is converted into a Geom_CylindricalSurface cylinder, 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 cylinder and the origin of the parameters,
its implicit orientation (right-handed or left-handed) gives an orientation (direct or indirect) to the Geom_CylindricalSurface cylinder. See Also gce_MakeCylinder which provides functions for more complex cylinder constructions Geom_CylindricalSurface which provides additional functions for constructing cylinders and works, in particular, with the parametric equations of cylinders gp_Ax3

Constructor & Destructor Documentation

◆ gp_Cylinder() [1/2]

constexpr gp_Cylinder::gp_Cylinder ( )

inlineconstexprnoexcept

Creates a indefinite cylinder.

◆ gp_Cylinder() [2/2]

constexpr gp_Cylinder::gp_Cylinder	(	const gp_Ax3 &	theA3,
		const double	theRadius )

inlineconstexpr

Creates a cylinder of radius Radius, whose axis is the "main Axis" of theA3. theA3 is the local coordinate system of the cylinder. Raises ConstructionErrord if theRadius < 0.0.

Member Function Documentation

◆ Axis()

constexpr const gp_Ax1 & gp_Cylinder::Axis ( ) const

inlineconstexprnoexcept

Returns the symmetry axis of the cylinder.

◆ Coefficients()

void gp_Cylinder::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 coordinate 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_Cylinder::Direct ( ) const

inline

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

◆ Location()

constexpr const gp_Pnt & gp_Cylinder::Location ( ) const

inlineconstexprnoexcept

Returns the "Location" point of the cylinder.

◆ Mirror() [1/3]

void gp_Cylinder::Mirror ( const gp_Ax1 & theA1 )

noexcept

◆ Mirror() [2/3]

void gp_Cylinder::Mirror ( const gp_Ax2 & theA2 )

noexcept

◆ Mirror() [3/3]

void gp_Cylinder::Mirror ( const gp_Pnt & theP )

noexcept

◆ Mirrored() [1/3]

gp_Cylinder gp_Cylinder::Mirrored ( const gp_Ax1 & theA1 ) const

noexcept

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

◆ Mirrored() [2/3]

gp_Cylinder gp_Cylinder::Mirrored ( const gp_Ax2 & theA2 ) const

noexcept

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

◆ Mirrored() [3/3]

gp_Cylinder gp_Cylinder::Mirrored ( const gp_Pnt & theP ) const

noexcept

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

◆ Position()

constexpr const gp_Ax3 & gp_Cylinder::Position ( ) const

inlineconstexprnoexcept

Returns the local coordinate system of the cylinder.

◆ Radius()

constexpr double gp_Cylinder::Radius ( ) const

inlineconstexprnoexcept

Returns the radius of the cylinder.

◆ Rotate()

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

inline

◆ Rotated()

gp_Cylinder gp_Cylinder::Rotated	(	const gp_Ax1 &	theA1,
		const double	theAng ) const

inline

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

◆ Scale()

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

inline

◆ Scaled()

gp_Cylinder gp_Cylinder::Scaled	(	const gp_Pnt &	theP,
		const double	theS ) const

inline

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

◆ SetAxis()

void gp_Cylinder::SetAxis ( const gp_Ax1 & theA1 )

inline

Changes the symmetry axis of the cylinder. Raises ConstructionError if the direction of theA1 is parallel to the "XDirection" of the coordinate system of the cylinder.

◆ SetLocation()

constexpr void gp_Cylinder::SetLocation ( const gp_Pnt & theLoc )

inlineconstexprnoexcept

Changes the location of the surface.

◆ SetPosition()

constexpr void gp_Cylinder::SetPosition ( const gp_Ax3 & theA3 )

inlineconstexprnoexcept

Change the local coordinate system of the surface.

◆ SetRadius()

void gp_Cylinder::SetRadius ( const double theR )

inline

Modifies the radius of this cylinder. Exceptions Standard_ConstructionError if theR is negative.

◆ Transform()

void gp_Cylinder::Transform ( const gp_Trsf & theT )

inline

◆ Transformed()

gp_Cylinder gp_Cylinder::Transformed ( const gp_Trsf & theT ) const

inline

Transforms a cylinder with the transformation theT from class Trsf.

◆ Translate() [1/2]

constexpr void gp_Cylinder::Translate	(	const gp_Pnt &	theP1,
		const gp_Pnt &	theP2 )

inlineconstexprnoexcept

◆ Translate() [2/2]

constexpr void gp_Cylinder::Translate ( const gp_Vec & theV )

inlineconstexprnoexcept

◆ Translated() [1/2]

constexpr gp_Cylinder gp_Cylinder::Translated	(	const gp_Pnt &	theP1,
		const gp_Pnt &	theP2 ) const

inlineconstexprnoexcept

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

◆ Translated() [2/2]

constexpr gp_Cylinder gp_Cylinder::Translated ( const gp_Vec & theV ) const

inlineconstexprnoexcept

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

◆ UReverse()

constexpr void gp_Cylinder::UReverse ( )

inlineconstexprnoexcept

Reverses the U parametrization of the cylinder reversing the YAxis.

◆ VReverse()

constexpr void gp_Cylinder::VReverse ( )

inlineconstexprnoexcept

Reverses the V parametrization of the plane reversing the Axis.

◆ XAxis()

constexpr gp_Ax1 gp_Cylinder::XAxis ( ) const

inlineconstexprnoexcept

Returns the axis X of the cylinder.

◆ YAxis()

constexpr gp_Ax1 gp_Cylinder::YAxis ( ) const

inlineconstexprnoexcept

Returns the axis Y of the cylinder.

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

gp_Cylinder.hxx

Public Member Functions

Detailed Description

Constructor & Destructor Documentation

◆ gp_Cylinder() [1/2]

◆ gp_Cylinder() [2/2]

Member Function Documentation

◆ Axis()

◆ Coefficients()

◆ Direct()

◆ Location()

◆ Mirror() [1/3]

◆ Mirror() [2/3]

◆ Mirror() [3/3]

◆ Mirrored() [1/3]

◆ Mirrored() [2/3]

◆ Mirrored() [3/3]

◆ Position()

◆ Radius()

◆ Rotate()

◆ Rotated()

◆ Scale()

◆ Scaled()

◆ SetAxis()

◆ SetLocation()

◆ SetPosition()

◆ SetRadius()

◆ Transform()

◆ Transformed()

◆ Translate() [1/2]

◆ Translate() [2/2]

◆ Translated() [1/2]

◆ Translated() [2/2]

◆ UReverse()

◆ VReverse()

◆ XAxis()

◆ YAxis()