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from manimlib.imports import *
class helix_(ThreeDScene):
CONFIG = {
"x_min": -6,
"x_max": 6,
"y_min": -6,
"y_max": 6,
"graph_origin": ORIGIN
}
def construct(self):
axes = ThreeDAxes()
helix = ParametricFunction(
lambda t: np.array([
1.5*np.cos(TAU*t),
1.5*np.sin(TAU*t),
2*t
]), t_min = -1, t_max = 2, color = RED
)
cylinder = ParametricSurface(
lambda u, v: np.array([
1.5*np.cos(TAU*v),
1.5*np.sin(TAU*v),
2*u
]), u_min = -1, u_max = 2, fill_opacity = -.4, fill_color = WHITE, color = WHITE
)
self.set_camera_orientation(phi=60* DEGREES,theta=45*DEGREES)
self.play(FadeIn(axes), FadeIn(cylinder), ShowCreation(helix, run_time = 4))
self.begin_ambient_camera_rotation(rate=0.5)
self.wait(5)
self.play(FadeOut(axes),FadeOut(helix), FadeOut(cylinder))
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