Public 成员函数
	GTorus ()

	GTorus (GAx3 theA3, double theMajorRadius, double theMinorRadius)

void	SetAxis (GAx1 theA1)

void	SetLocation (GPnt theLoc)

void	SetMajorRadius (double theMajorRadius)

void	SetMinorRadius (double theMinorRadius)

void	SetPosition (GAx3 theA3)

double	Area ()

void	UReverse ()

void	VReverse ()

boolean	Direct ()

GAx1	Axis ()

GPnt	Location ()

GAx3	Position ()

double	MajorRadius ()

double	MinorRadius ()

double	Volume ()

GAx1	XAxis ()

GAx1	YAxis ()

void	Mirror (GPnt theP)

GTorus	Mirrored (GPnt theP)

void	Mirror (GAx1 theA1)

GTorus	Mirrored (GAx1 theA1)

void	Mirror (GAx2 theA2)

GTorus	Mirrored (GAx2 theA2)

void	Rotate (GAx1 theA1, double theAng)

GTorus	Rotated (GAx1 theA1, double theAng)

void	Scale (GPnt theP, double theS)

GTorus	Scaled (GPnt theP, double theS)

void	Transform (GTrsf theT)

GTorus	Transformed (GTrsf theT)

void	Translate (GVec theV)

GTorus	Translated (GVec theV)

void	Translate (GPnt theP1, GPnt theP2)

GTorus	Translated (GPnt theP1, GPnt theP2)

详细描述

Describes a torus. A torus is defined by its major and minor radii and positioned in space with a coordinate system (a gp_Ax3 object) as follows: - The origin of the coordinate system is the center of the torus; - The surface is obtained by rotating a circle of radius equal to the minor radius of the torus about the "main Direction" of the coordinate system. This circle is located in the plane defined by the origin, the "X Direction" and the "main Direction" of the coordinate system. It is centered on the "X Axis" of this coordinate system, and located at a distance, from the origin of this coordinate system, equal to the major radius of the torus; - The "X Direction" and "Y Direction" define the reference plane of the torus. The coordinate system described above is the "local coordinate system" of the torus. Note: when a gp_Torus torus is converted into a Geom_ToroidalSurface torus, 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 torus and the origin of the parameters, - its implicit orientation (right-handed or left-handed) gives the orientation (direct, indirect) to the Geom_ToroidalSurface torus. See Also gce_MakeTorus which provides functions for more complex torus constructions Geom_ToroidalSurface which provides additional functions for constructing tori and works, in particular, with the parametric equations of tori.

构造及析构函数说明

◆ GTorus() [1/2]

GTorus.GTorus ( )

creates an indefinite Torus.

◆ GTorus() [2/2]

GTorus.GTorus	(	GAx3	theA3,
		double	theMajorRadius,
		double	theMinorRadius )

a torus centered on the origin of coordinate system theA3, with major radius theMajorRadius and minor radius theMinorRadius, and with the reference plane defined by the origin, the "X Direction" and the "Y Direction" of theA3. Warnings : It is not forbidden to create a torus with theMajorRadius = theMinorRadius = 0.0 Raises ConstructionError if theMinorRadius < 0.0 or if theMajorRadius < 0.0

成员函数说明

◆ Area()

double GTorus.Area ( )

Computes the area of the torus.

◆ Axis()

GAx1 GTorus.Axis ( )

returns the symmetry axis of the torus.

◆ Direct()

boolean GTorus.Direct ( )

returns true if the Ax3, the local coordinate system of this torus, is right handed.

◆ Location()

GPnt GTorus.Location ( )

Returns the Torus's location.

◆ MajorRadius()

double GTorus.MajorRadius ( )

returns the major radius of the torus.

◆ MinorRadius()

double GTorus.MinorRadius ( )

returns the minor radius of the torus.

◆ Mirrored() [1/3]

GTorus GTorus.Mirrored ( GAx1 theA1 )

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

◆ Mirrored() [2/3]

GTorus GTorus.Mirrored ( GAx2 theA2 )

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

◆ Mirrored() [3/3]

GTorus GTorus.Mirrored ( GPnt theP )

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

◆ Position()

GAx3 GTorus.Position ( )

Returns the local coordinates system of the torus.

◆ Rotated()

GTorus GTorus.Rotated	(	GAx1	theA1,
		double	theAng )

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

◆ Scaled()

GTorus GTorus.Scaled	(	GPnt	theP,
		double	theS )

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

◆ SetAxis()

void GTorus.SetAxis ( GAx1 theA1 )

Modifies this torus, by redefining its local coordinate system so that: - its origin and "main Direction" become those of the axis theA1 (the "X Direction" and "Y Direction" are then recomputed). Raises ConstructionError if the direction of theA1 is parallel to the "XDirection" of the coordinate system of the toroidal surface.

◆ SetLocation()

void GTorus.SetLocation ( GPnt theLoc )

Changes the location of the torus.

◆ SetMajorRadius()

void GTorus.SetMajorRadius ( double theMajorRadius )

Assigns value to the major radius of this torus. Raises ConstructionError if theMajorRadius - MinorRadius <= Resolution()

◆ SetMinorRadius()

void GTorus.SetMinorRadius ( double theMinorRadius )

Assigns value to the minor radius of this torus. Raises ConstructionError if theMinorRadius < 0.0 or if MajorRadius - theMinorRadius <= Resolution from gp.

◆ SetPosition()

void GTorus.SetPosition ( GAx3 theA3 )

Changes the local coordinate system of the surface.

◆ Transformed()

GTorus GTorus.Transformed ( GTrsf theT )

Transforms a torus with the transformation theT from class Trsf.

◆ Translated() [1/2]

GTorus GTorus.Translated	(	GPnt	theP1,
		GPnt	theP2 )

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

◆ Translated() [2/2]

GTorus GTorus.Translated ( GVec theV )

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

◆ UReverse()

void GTorus.UReverse ( )

Reverses the U parametrization of the torus reversing the YAxis.

◆ Volume()

double GTorus.Volume ( )

Computes the volume of the torus.

◆ VReverse()

void GTorus.VReverse ( )

Reverses the V parametrization of the torus reversing the ZAxis.

◆ XAxis()

GAx1 GTorus.XAxis ( )

returns the axis X of the torus.

◆ YAxis()

GAx1 GTorus.YAxis ( )

returns the axis Y of the torus.

Public 成员函数