Type: Basic DXF R12 entity.

Draws circular arcs — arcs cut from circles, not from ellipses, parabolas, or some other complicated curve, the arc goes from start angle to end angle.

DXFEngine.arc(radius=1.0, center=(0., 0.), startangle=0., endangle=360., **kwargs)
  • radius (float) – arc radius
  • center – center point (xy- or xyz-tuple), z-axis is 0 by default
  • startangle (float) – start angle in degree
  • endangle (float) – end angle in degree

Common Keyword Arguments for all Basic DXF R12 Entities

keyword description
layer Layer name as string
linetype Linetype name as string, if not defined = BYLAYER
color as integer in range [1..255], 0 = BYBLOCK, 256 = BYLAYER
thickness Thickness as float
paper_space 0 = entity is in model_space, 1 = entity is in paper_space
extrusion_direction 3D Point as tuple(x, y, z) if extrusion direction is not parallel to the World Z axis

Attribs of DXF entities can be changed by the index operator:

from dxfwrite import DXFEngine as dxf

drawing = dxf.drawing('drawing.dxf')
arc = dxf.arc(2.0, (1.0, 1.0), 30, 90)
arc['layer'] = 'points'
arc['color'] = 7
arc['center'] = (2, 3, 7) # int or float
arc['radius'] = 3.5