def __init__(self, focal_point, **kwargs):
digest_config(self, kwargs)
circles = VGroup()
for x in range(self.n_circles):
circle = Circle(
radius=self.big_radius,
stroke_color=BLACK,
stroke_width=0,
)
circle.add_updater(lambda c: c.move_to(focal_point))
circle.save_state()
circle.set_width(self.small_radius * 2)
circle.set_stroke(self.color, self.start_stroke_width)
circles.add(circle)
animations = [Restore(circle) for circle in circles]
super().__init__(*animations, **kwargs)
def __init__(self, focal_point, **kwargs):
digest_config(self, kwargs)
circles = VGroup()
for x in range(self.n_circles):
circle = Circle(
radius=self.big_radius,
stroke_color=BLACK,
stroke_width=0,
)
circle.add_updater(
lambda c: c.move_to(focal_point)
)
circle.save_state()
circle.set_width(self.small_radius * 2)
circle.set_stroke(self.color, self.start_stroke_width)
circles.add(circle)
animations = [
Restore(circle)
for circle in circles
]
super().__init__(*animations, **kwargs)
def get_circle(self, mobject):
circle = Circle(**self.circle_config)
circle.add_updater(lambda c: c.surround(mobject))
return circle