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Cleaned up rotation.py

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Grant Sanderson 2019-02-09 15:48:36 -08:00
parent c1cc1a8b24
commit 9550174eba
1 changed files with 16 additions and 20 deletions
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36
manimlib/animation/rotation.py
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@ -1,9 +1,8 @@
import numpy as np
from manimlib.animation.animation import Animation from manimlib.animation.animation import Animation
from manimlib.animation.transform import Transform from manimlib.animation.transform import Transform
from manimlib.constants import * from manimlib.constants import OUT
from manimlib.utils.config_ops import digest_config from manimlib.constants import PI
from manimlib.constants import TAU
from manimlib.utils.rate_functions import linear from manimlib.utils.rate_functions import linear
@ -13,18 +12,12 @@ class Rotating(Animation):
"radians": TAU, "radians": TAU,
"run_time": 5, "run_time": 5,
"rate_func": linear, "rate_func": linear,
"in_place": True,
"about_point": None, "about_point": None,
"about_edge": None, "about_edge": None,
} }
def interpolate_submobject(self, submobject, starting_submobject, alpha):
submobject.points = np.array(starting_submobject.points)
def interpolate_mobject(self, alpha): def interpolate_mobject(self, alpha):
Animation.interpolate_mobject(self, alpha) self.mobject.become(self.starting_mobject)
if self.in_place and self.about_point is None:
self.about_point = self.mobject.get_center()
self.mobject.rotate( self.mobject.rotate(
alpha * self.radians, alpha * self.radians,
axis=self.axis, axis=self.axis,
@ -35,22 +28,25 @@ class Rotating(Animation):
class Rotate(Transform): class Rotate(Transform):
CONFIG = { CONFIG = {
"in_place": False,
"about_point": None, "about_point": None,
"about_edge": None,
} }
def __init__(self, mobject, angle=np.pi, axis=OUT, **kwargs): def __init__(self, mobject, angle=PI, axis=OUT, **kwargs):
if "path_arc" not in kwargs: if "path_arc" not in kwargs:
kwargs["path_arc"] = angle kwargs["path_arc"] = angle
if "path_arc_axis" not in kwargs: if "path_arc_axis" not in kwargs:
kwargs["path_arc_axis"] = axis kwargs["path_arc_axis"] = axis
digest_config(self, kwargs, locals()) self.angle = angle
target = mobject.deepcopy() self.axis = axis
if self.in_place: super().__init__(mobject, **kwargs)
self.about_point = mobject.get_center()
def create_target(self):
target = self.mobject.copy()
target.rotate( target.rotate(
angle, self.angle,
axis=axis, axis=self.axis,
about_point=self.about_point, about_point=self.about_point,
about_edge=self.about_edge,
) )
Transform.__init__(self, mobject, target, **kwargs) return target