Arc example

Arc example
 1# this example creates 4 arcs all with the same radius in the active block
 2
 3# check there is an active drawing
 4if impact.active_drawing.isNone():
 5
 6    # display a message in the output toolbox
 7    impact.gui.output_toolbox.add("Unable to continue: there is no active drawing")
 8
 9else:
10
11    # create a local variable for the active block
12    ab = impact.active_drawing.active_layer.active_block
13
14    # move to the origin of the active block
15    ab.move_ad(0, 0)
16
17    # create a local variable for the radius
18    radius = 50
19
20    # create a vector for the offset
21    offset = impact.creator.vector(radius,radius)
22
23    # create a clockwise large arc
24    ab.arc(offset, radius, 0, 0)
25
26    # create an anti-clockwise large arc
27    ab.arc(offset, radius, 1, 0)
28
29    # create a clockwise small arc
30    ab.arc(offset, radius, 0, 1)
31
32    # create an anti-clockwise small arc
33    ab.arc(offset, radius, 1, 1)
34