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from manimlib.imports import *
class Mobius(ThreeDScene):
def construct(self):
axes=ThreeDAxes()
R=2.5
mobius = ParametricSurface(
lambda u, v: np.array([
(R+u*np.cos(v/2))*np.cos(v),
(R+u*np.cos(v/2))*np.sin( v),
u*np.sin(v/2)
]),
u_min = -0.5, u_max = 0.5, v_min = 0, v_max = 2*PI,
resolution=(6, 32)).fade(0.5) #Resolution of the surfaces
circle=Circle(radius=2.5, color=BLUE)
mobius.rotate(PI/2, axis=RIGHT)
mobius.rotate(PI/2, axis=OUT)
# # mobius.shift(RIGHT+OUT+DOWN)
along = ParametricSurface(
lambda u, v: np.array([
(R+u*np.cos(v/2))*np.cos(v),
(R+u*np.cos(v/2))*np.sin(v),
0
]),
u_min = -0.5, u_max = 0.5, v_min = 0, v_max = 2*PI,
resolution=(6, 32)).fade(0.5) #Resolution of the surfaces
circle=Circle(radius=2.5, color=BLUE)
self.set_camera_orientation(phi=75 * DEGREES,theta=-75*DEGREES)
self.play(Write(mobius))
self.wait(1)
self.begin_ambient_camera_rotation(rate=0.65)
self.wait(10)
self.stop_ambient_camera_rotation()
self.wait(1)
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