def add_treds_to_tires(self):
for tire in self.get_tires():
radius = tire.get_width() / 2
center = tire.get_center()
tred = Line(
0.7 * radius * consts.RIGHT, 1.1 * radius * consts.RIGHT,
stroke_width=2,
color=Color('BLACK')
)
tred.rotate(consts.PI / 5, about_point=tred.get_end())
for theta in np.arange(0, 2 * np.pi, np.pi / 4):
new_tred = tred.copy()
new_tred.rotate(theta, about_point=consts.ORIGIN)
new_tred.shift(center)
tire.add(new_tred)
return self
def get_lines_parallel_to_axis(self, axis1, axis2, freq, ratio):
line = Line(axis1.get_start(), axis1.get_end())
dense_freq = (1 + ratio)
step = (1 / dense_freq) * freq
lines1 = VGroup()
lines2 = VGroup()
ranges = (
np.arange(0, axis2.x_max, step),
np.arange(0, axis2.x_min, -step),
)
for inputs in ranges:
for k, x in enumerate(inputs):
new_line = line.copy()
new_line.move_to(axis2.number_to_point(x))
if k % (1 + ratio) == 0:
lines1.add(new_line)
else:
lines2.add(new_line)
return lines1, lines2