gce_MakeElips Class Reference

This class implements the following algorithms used to create an ellipse from gp. More...

#include <gce_MakeElips.hxx>

Inheritance diagram for gce_MakeElips:

Public Member Functions
	gce_MakeElips (const gp_Ax2 &A2, const Standard_Real MajorRadius, const Standard_Real MinorRadius)
	The major radius of the ellipse is on the "XAxis" and the minor radius is on the "YAxis" of the ellipse. The "XAxis" is defined with the "XDirection" of A2 and the "YAxis" is defined with the "YDirection" of A2. Warnings : It is not forbidden to create an ellipse with MajorRadius = MinorRadius.
	gce_MakeElips (const gp_Pnt &S1, const gp_Pnt &S2, const gp_Pnt &Center)
	Make an ellipse with its center and two points. Warning The MakeElips class does not prevent the construction of an ellipse where the MajorRadius is equal to the MinorRadius. If an error occurs (that is, when IsDone returns false), the Status function returns:
const gp_Elips &	Value () const
	Returns the constructed ellipse. Exceptions StdFail_NotDone if no ellipse is constructed.
const gp_Elips &	Operator () const
	operator gp_Elips () const
Public Member Functions inherited from gce_Root
Standard_Boolean	IsDone () const
	Returns true if the construction is successful.
gce_ErrorType	Status () const
	Returns the status of the construction:

Additional Inherited Members
Protected Attributes inherited from gce_Root
gce_ErrorType	TheError

Detailed Description

This class implements the following algorithms used to create an ellipse from gp.

• Create an ellipse from its center, and two points: one on the ciconference giving the major radius, the other giving the value of the small radius.

Constructor & Destructor Documentation

gce_MakeElips() [1/2]

gce_MakeElips::gce_MakeElips	(	const gp_Ax2 &	A2,
		const Standard_Real	MajorRadius,
		const Standard_Real	MinorRadius
	)

The major radius of the ellipse is on the "XAxis" and the minor radius is on the "YAxis" of the ellipse. The "XAxis" is defined with the "XDirection" of A2 and the "YAxis" is defined with the "YDirection" of A2. Warnings : It is not forbidden to create an ellipse with MajorRadius = MinorRadius.

gce_MakeElips() [2/2]

gce_MakeElips::gce_MakeElips	(	const gp_Pnt &	S1,
		const gp_Pnt &	S2,
		const gp_Pnt &	Center
	)

Make an ellipse with its center and two points. Warning The MakeElips class does not prevent the construction of an ellipse where the MajorRadius is equal to the MinorRadius. If an error occurs (that is, when IsDone returns false), the Status function returns:

• gce_InvertRadius if MajorRadius is less than MinorRadius;
• gce_NegativeRadius if MinorRadius is less than 0.0;
• gce_NullAxis if the points S1 and Center are coincident; or
• gce_InvertAxis if:
• the major radius computed with Center and S1 is less than the minor radius computed with Center, S1 and S2, or
• Center, S1 and S2 are collinear.

Member Function Documentation

Operator()

const gp_Elips & gce_MakeElips::Operator

(

)

const

operator gp_Elips()

gce_MakeElips::operator gp_Elips

(

)

const

Value()

const gp_Elips & gce_MakeElips::Value

(

)

const

Returns the constructed ellipse. Exceptions StdFail_NotDone if no ellipse is constructed.

---

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

• gce_MakeElips.hxx