Circle

CIRCLE (DXF Reference) center at location dxf.center and radius of dxf.radius. The CIRCLE entity has OCS coordinates.

See also

• Tutorial for Simple DXF Entities, section Circle

• ezdxf.math.ConstructionCircle

• Object Coordinate System (OCS)

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

dxf.center

Center point of circle (2D/3D Point in OCS)

dxf.radius

Radius of circle (float)

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

Yields vertices of the circle for iterable angles in WCS.

Parameters

angles – iterable of angles in OCS as degrees, angle goes counter-clockwise around the extrusion vector, OCS x-axis = 0 deg.

flattening(sagitta: float) → Iterable[Vec3]

Approximate the circle by vertices in WCS, argument sagitta is the max. distance from the center of an arc segment to the center of its chord. Returns a closed polygon: start vertex == end vertex!

Yields always Vec3 objects.

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 CIRCLE/ARC 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 CIRCLE/ARC 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