def __init__(self, r, sweep=None):
super(circle, self).__init__()
r = D(r)
self.points.append((D(0), D(0)))
self.points.append((r, D(0)))
self.points.append((D(0), r))
if sweep is not None:
assert sweep > 0 and sweep < 360
sweep = dmath.radians(D(sweep))
self.points.append((dmath.cos(sweep) * r, dmath.sin(sweep) * r))
self.full = sweep is None
def __init__(self, a):
super(rotate, self).__init__()
a = dmath.radians(D(a))
self.m[0,0] = self.m[1,1] = D(dmath.cos(a))
self.m[0,1] = D(dmath.sin(a))
self.m[1,0] = -D(dmath.sin(a))
