Arc

class compas.geometry.Arc(frame=None, radius=None, end_angle=None, start_angle=None, **kwargs)[source]

Bases: Primitive

Represents a portion of a circle’s arc.

Parameters

• frame (Frame) – Coordinate frame at the center of the arc’s circle.

• radius (float) – Radius of the arc’s circle.

• end_angle (float) – The angle in radians of the end of this Arc.

• start_angle – The angle in radians of the start of this Arc.

Attributes

• length (float) – The length of the arc (radius * angle)

• angle (float) – The sweep angle in radians (between incrementing end angle and start angle).

• domain (tuple(float, float)) – A tuple containing the start and end angles of this arc, in radians.

• center (Point) – The center point of the circle which coincides with this Arc.

• circumference (float) – The circumference of the circle which coincides with this Arc.

• diameter (float) – The diameter of the circle which coincides with this Arc.

Methods

from_circle

Creates an Arc from a circle and start and end angles.

Inherited Methods

ToString	Converts the instance to a string.
copy	Make an independent copy of the data object.
from_data	Construct an object of this type from the provided data.
from_json	Construct an object from serialized data contained in a JSON file.
from_jsonstring	Construct an object from serialized data contained in a JSON string.
sha256	Compute a hash of the data for comparison during version control using the sha256 algorithm.
to_data	Convert an object to its native data representation.
to_json	Serialize the data representation of an object to a JSON file.
to_jsonstring	Serialize the data representation of an object to a JSON string.
transform	Transform the geometry.
transformed	Returns a transformed copy of this geometry.
validate_data	Validate the object's data against its data schema.
validate_json	Validate the object's data against its json schema.