Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>
the orientation circles round cycles times during the
whole cycle
begin_zeta is the angle from outwards at theta==0
the orientation circles round cycles times during the
whole cycle
begin_zeta is the angle from outwards at theta==0
- positive meaning in the direction of r0 x r1
+ positive meaning in the direction of r0 x r1 (maybe)
'''
ParametricCircle.__init__(tw, c, r0, r1)
tw._cycles = cycles
'''
ParametricCircle.__init__(tw, c, r0, r1)
tw._cycles = cycles