def render(self):
# Semicircles computation
visited = {0}
for multiple in range(2, self.circles):
origin_x = 0
target_x = multiple
color = 'black'
while target_x <= self.iterations:
if origin_x == 0 and target_x not in visited :
direction = '-'
color = 'red'
else:
direction = '+'
semicircle = Semicircle((origin_x, 0), (target_x, 0), angle_dir=direction)
semicircle.stroke(color, width=.6, opacity=.25)
semicircle.fill('none')
self.add(semicircle)
visited.add(target_x)
origin_x += multiple
target_x += multiple
# Number line
for i in range(self.iterations + 1):
circle = Circle((i, 0), .25)
circle.stroke('black', width=.1)
circle.fill('white')
self.add(circle)
self.stretch()
self.save()
