Regular polygon confusing alignment behavior

[erooke]

The alignment behavior for RegularPolygon seems to be different than for other objects. From what I can see most objects get aligned by bounding box. However if you ask for RegularPolygon to be centered it gets aligned according to the circumscribed circle.

The left image is what happens if you give align = Align.CENTER while the right is what would normally happen.

Is this intended? The docs do not mention this but there are tests enforcing this behavior:

build123d/tests/test_build_sketch.py

Lines 296 to 303 in 47814ad

	def test_regular_polygon_matches_polar(self):
	for side_count in range(3, 10):
	with BuildSketch():
	regular_poly = RegularPolygon(1, side_count)
	poly_pts = [Vector(v) for v in regular_poly.vertices()]
	polar_pts = [p.position for p in PolarLocations(1, side_count)]
	for poly_pt, polar_pt in zip(poly_pts, polar_pts):
	self.assertTupleAlmostEquals(poly_pt.to_tuple(), polar_pt.to_tuple(), 5)

edit: this test is enforcing this behavior as the default arg for align is (Align.CENTER, Align.CENTER)

[jdegenstein]

This is intentional behavior and we are unlikely to change it. This is documented on this page of the docs, including one example specifically for triangles. https://build123d.readthedocs.io/en/latest/center.html

As mentioned on that page, there is even an enum to control this: CenterOf.

[erooke]

Fair enough, dunno how I missed that page in the docs.