Circle¶

The CIRCLE entity (DXF Reference) defined by the DXF attributes dxf.center and dxf.radius. The CIRCLE entity has OCS coordinates.

See also

Subclass of	`ezdxf.entities.DXFGraphic`
DXF type	`'CIRCLE'`
Factory function	`ezdxf.layouts.BaseLayout.add_circle()`
Inherited DXF attributes	Common graphical DXF attributes

Warning

Do not instantiate entity classes by yourself - always use the provided factory functions!

class ezdxf.entities.Circle¶

vertices(angles: Iterable[float]) → Iterator[Vec3]¶

Yields the vertices of the circle of all given angles as Vec3 instances in WCS.

Parameters:: angles – iterable of angles in OCS as degrees, angle goes counter-clockwise around the extrusion vector, and the OCS x-axis defines 0-degree.

flattening(sagitta: float) → Iterator[Vec3]¶: Approximate the circle by vertices in WCS as Vec3 instances. The argument sagitta is the maximum distance from the center of an arc segment to the center of its chord. Yields a closed polygon where the start vertex is equal to the end vertex!

transform(m: Matrix44) → Circle¶: Transform the CIRCLE entity by transformation matrix m inplace. Raises NonUniformScalingError() for non-uniform scaling.

translate(dx: float, dy: float, dz: float) → Circle¶: Optimized CIRCLE/ARC translation about dx in x-axis, dy in y-axis and dz in z-axis, returns self (floating interface).

to_ellipse(replace=True) → Ellipse¶

Convert the CIRCLE/ARC entity to an Ellipse entity.

Adds the new ELLIPSE entity to the entity database and to the same layout as the source entity.

Parameters:: replace – replace (delete) source entity by ELLIPSE entity if True

to_spline(replace=True) → Spline¶

Convert the CIRCLE/ARC entity to a Spline entity.

Adds the new SPLINE entity to the entity database and to the same layout as the source entity.

Parameters:: replace – replace (delete) source entity by SPLINE entity if True