Open CASCADE Technology  6.5.4
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Public Member Functions
gp_Cone Class Reference

Defines an infinite conical surface.
A cone is defined by its half-angle at the apex and
positioned in space with a coordinate system (a gp_Ax3
object) and a "reference radius" where:
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#include <gp_Cone.hxx>

Public Member Functions

DEFINE_STANDARD_ALLOC gp_Cone ()
 Creates an indefinite Cone.

 gp_Cone (const gp_Ax3 &A3, const Standard_Real Ang, const Standard_Real Radius)
 Creates an infinite conical surface. A3 locates the cone
in the space and defines the reference plane of the surface.
Ang is the conical surface semi-angle between 0 and PI/2 radians.
Radius is the radius of the circle in the reference plane of
the cone.
Raises ConstructionError
. if Radius is lower than 0.0
. Ang < Resolution from gp or Ang >= (PI/2) - Resolution.

void SetAxis (const gp_Ax1 &A1)
 Changes the symmetry axis of the cone. Raises ConstructionError
the direction of A1 is parallel to the "XDirection"
of the coordinate system of the cone.

void SetLocation (const gp_Pnt &Loc)
 Changes the location of the cone.

void SetPosition (const gp_Ax3 &A3)
 Changes the local coordinate system of the cone.
This coordinate system defines the reference plane of the cone.

void SetRadius (const Standard_Real R)
 Changes the radius of the cone in the reference plane of
the cone.
//! Raised if R < 0.0

void SetSemiAngle (const Standard_Real Ang)
 Changes the semi-angle of the cone.
Ang is the conical surface semi-angle ]0,PI/2[.
Raises ConstructionError if Ang < Resolution from gp or Ang >= PI/2 - Resolution

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.

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

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

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

const gp_Ax1Axis () const
 returns the symmetry axis of the cone.

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

const gp_PntLocation () const
 returns the "Location" point of the cone.

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

Standard_Real RefRadius () const
 Returns the radius of the cone in the reference plane.

Standard_Real SemiAngle () const
 Returns the half-angle at the apex of this cone.

gp_Ax1 XAxis () const
 Returns the XAxis of the reference plane.

gp_Ax1 YAxis () const
 Returns the YAxis of the reference plane.

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

void Mirror (const gp_Ax1 &A1)
gp_Cone Mirrored (const gp_Ax1 &A1) const
 Performs the symmetrical transformation of a cone with
respect to an axis placement which is the axis of the
symmetry.

void Mirror (const gp_Ax2 &A2)
gp_Cone Mirrored (const gp_Ax2 &A2) const
 Performs the symmetrical transformation of a cone 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_Cone Rotated (const gp_Ax1 &A1, const Standard_Real Ang) const
 Rotates a cone. 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_Cone Scaled (const gp_Pnt &P, const Standard_Real S) const
 Scales a cone. S is the scaling value.
The absolute value of S is used to scale the cone

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

void Translate (const gp_Vec &V)
gp_Cone Translated (const gp_Vec &V) const
 Translates a cone 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_Cone Translated (const gp_Pnt &P1, const gp_Pnt &P2) const
 Translates a cone from the point P1 to the point P2.

const gp_Ax3_CSFDB_Getgp_Conepos () const
Standard_Real _CSFDB_Getgp_Coneradius () const
void _CSFDB_Setgp_Coneradius (const Standard_Real p)
Standard_Real _CSFDB_Getgp_ConesemiAngle () const
void _CSFDB_Setgp_ConesemiAngle (const Standard_Real p)

Detailed Description


Constructor & Destructor Documentation


Member Function Documentation

gp_Pnt gp_Cone::Apex ( ) const
gp_Cone gp_Cone::Translated ( const gp_Pnt P1,
const gp_Pnt P2 
) const

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