Open CASCADE Technology  6.5.4
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Public Member Functions
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

DEFINE_STANDARD_ALLOC gp_Sphere ()
 Creates an indefinite sphere.

 gp_Sphere (const gp_Ax3 &A3, const Standard_Real Radius)
 Constructs a sphere with radius Radius, centered on the origin
of A3. A3 is the local coordinate system of the sphere.
Warnings :
It is not forbidden to create a sphere with null radius.
Raises ConstructionError if Radius < 0.0

void SetLocation (const gp_Pnt &Loc)
 Changes the center of the sphere.

void SetPosition (const gp_Ax3 &A3)
 Changes the local coordinate system of the sphere.

void SetRadius (const Standard_Real R)
 Assigns R the radius of the Sphere.
Warnings :
It is not forbidden to create a sphere with null radius.
Raises ConstructionError if R < 0.0

Standard_Real Area () const
 Computes the aera of the sphere.

void Coefficients (Standard_Real &A1, Standard_Real &A2, Standard_Real &A3, Standard_Real &B1, Standard_Real &B2, Standard_Real &B3, Standard_Real &C1, Standard_Real &C2, Standard_Real &C3, Standard_Real &D) const
 Computes the coefficients of the implicit equation of the quadric
in the absolute cartesian coordinates system :
A1.X**2 + A2.Y**2 + A3.Z**2 + 2.(B1.X.Y + B2.X.Z + B3.Y.Z) +
2.(C1.X + C2.Y + C3.Z) + D = 0.0

void UReverse ()
 Reverses the U parametrization of the sphere
reversing the YAxis.

void VReverse ()
 Reverses the V parametrization of the sphere
reversing the ZAxis.

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

const gp_PntLocation () const
 --- Purpose ;
Returns the center of the sphere.

const gp_Ax3Position () const
 Returns the local coordinates system of the sphere.

Standard_Real Radius () const
 Returns the radius of the sphere.

Standard_Real Volume () const
 Computes the volume of the sphere

gp_Ax1 XAxis () const
 Returns the axis X of the sphere.

gp_Ax1 YAxis () const
 Returns the axis Y of the sphere.

void Mirror (const gp_Pnt &P)
gp_Sphere Mirrored (const gp_Pnt &P) const
 Performs the symmetrical transformation of a sphere
with respect to the point P which is the center of the
symmetry.

void Mirror (const gp_Ax1 &A1)
gp_Sphere Mirrored (const gp_Ax1 &A1) const
 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 &A2)
gp_Sphere Mirrored (const gp_Ax2 &A2) const
 Performs the symmetrical transformation of a sphere with respect
to a plane. The axis placement A2 locates the plane of the
of the symmetry : (Location, XDirection, YDirection).

void Rotate (const gp_Ax1 &A1, const Standard_Real Ang)
gp_Sphere Rotated (const gp_Ax1 &A1, const Standard_Real Ang) const
 Rotates a sphere. A1 is the axis of the rotation.
Ang is the angular value of the rotation in radians.

void Scale (const gp_Pnt &P, const Standard_Real S)
gp_Sphere Scaled (const gp_Pnt &P, const Standard_Real S) const
 Scales a sphere. S is the scaling value.
The absolute value of S is used to scale the sphere

void Transform (const gp_Trsf &T)
gp_Sphere Transformed (const gp_Trsf &T) const
 Transforms a sphere with the transformation T from class Trsf.

void Translate (const gp_Vec &V)
gp_Sphere Translated (const gp_Vec &V) const
 Translates a sphere in the direction of the vector V.
The magnitude of the translation is the vector's magnitude.

void Translate (const gp_Pnt &P1, const gp_Pnt &P2)
gp_Sphere Translated (const gp_Pnt &P1, const gp_Pnt &P2) const
 Translates a sphere from the point P1 to the point P2.

const gp_Ax3_CSFDB_Getgp_Spherepos () const
Standard_Real _CSFDB_Getgp_Sphereradius () const
void _CSFDB_Setgp_Sphereradius (const Standard_Real p)

Detailed Description


Constructor & Destructor Documentation


Member Function Documentation


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