Merge branch 'master' of github.com:3b1b/manim

This commit is contained in:
Grant Sanderson 2021-02-06 10:37:26 -08:00
commit 1a5a59f40e
2 changed files with 6 additions and 1 deletions

View file

@ -636,6 +636,10 @@ class Arrow(Line):
super().scale(length / self.get_length())
self.rotate(angle_of_vector(vect) - self.get_angle())
self.rotate(
PI / 2 - np.arccos(normalize(vect)[2]),
axis=rotate_vector(self.get_unit_vector(), -PI / 2),
)
self.shift(start - self.get_start())
self.refresh_triangulation()

View file

@ -57,6 +57,7 @@ class NumberLine(Line):
super().__init__(self.x_min * RIGHT, self.x_max * RIGHT, **kwargs)
if self.width:
self.set_width(self.width)
self.unit_size = self.get_unit_size()
else:
self.scale(self.unit_size)
self.center()
@ -123,7 +124,7 @@ class NumberLine(Line):
return self.point_to_number(point)
def get_unit_size(self):
return (self.x_max - self.x_min) / self.get_length()
return self.get_length() / (self.x_max - self.x_min)
def get_number_mobject(self, x,
number_config=None,