Open CASCADE Technology 6.6.0
Data Structures
Geom2d_Circle.hxx File Reference
#include <Standard.hxx>
#include <Standard_DefineHandle.hxx>
#include <Handle_Geom2d_Circle.hxx>
#include <Standard_Real.hxx>
#include <Geom2d_Conic.hxx>
#include <Standard_Boolean.hxx>
#include <Standard_Integer.hxx>
#include <Handle_Geom2d_Geometry.hxx>

Data Structures

class  Geom2d_Circle
 Describes a circle in the plane (2D space).
A circle is defined by its radius and, as with any conic
curve, is positioned in the plane with a coordinate
system (gp_Ax22d object) where the origin is the
center of the circle.
The coordinate system is the local coordinate
system of the circle.
The orientation (direct or indirect) of the local
coordinate system gives an explicit orientation to the
circle, determining the direction in which the
parameter increases along the circle.
The Geom2d_Circle circle is parameterized by an angle:
P(U) = O + R*Cos(U)*XDir + R*Sin(U)*YDir
where:
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