def transform(ctx, path, m, n1, n2, n3, points=100, range=TWOPI):
first = True
for i in _range(points):
pt = path.point(float(i)/points)
phi = i * range / points
dx, dy = supercalc(m, n1, n2, n3, phi)
if first:
ctx.beginpath(pt.x+dx, pt.y+dy)
first = False
else:
ctx.lineto(pt.x+dx, pt.y+dy)
return ctx.endpath(draw=False)
def path(ctx, x, y, w, h, m, n1, n2, n3, points=1000, percentage=1.0, range=TWOPI):
first = True
for i in _range(points):
if i > points*percentage:
continue
phi = i * range / points
dx, dy = supercalc(m, n1, n2, n3, phi)
dx = (dx * w) + x
dy = (dy * h) + y
if first:
ctx.beginpath(dx, dy)
first = False
else:
ctx.lineto(dx, dy)
return ctx.endpath()