TRACE

Type: Basic DXF R12 entity.

A trace of three or four points.

DXFEngine.trace(points=[], **kwargs)

Parameters:points – list of three or four 2D- or 3D-points

access/assign trace points by index 0, 1, 2 or 3:

trace[0] = (1.2, 4.3, 3.3)
trace[1] = (7.2, 2.3, 4.4)

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')
trace = dxf.trace([(0, 0), (2, 0), (2, 1), (0, 1)], layer='0')
trace['layer'] = 'trace'
trace['color'] = 7

# assign points by index 0, 1, 2, 3
trace[0] = (1.2, 4.3, 1.9)
drawing.add(trace)
drawing.save()