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Minor improvements to vibrating string, plus copy method to animation

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This commit is contained in:
Grant Sanderson 2015-12-16 19:49:21 -08:00
parent 6a10e775b9
commit 723103fb9a
2 changed files with 11 additions and 7 deletions
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4
animation/animation.py
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@ -6,6 +6,7 @@ import time
import os import os
import progressbar import progressbar
import inspect import inspect
from copy import deepcopy
from helpers import * from helpers import *
from mobject import Mobject from mobject import Mobject
@ -30,6 +31,9 @@ class Animation(object):
def __str__(self): def __str__(self):
return self.name return self.name
def copy(self):
return deepcopy(self)
def update(self, alpha): def update(self, alpha):
if alpha < 0: if alpha < 0:
alpha = 0.0 alpha = 0.0

14
animation/playground.py
View file

@ -9,13 +9,13 @@ from helpers import *
class VibratingString(Animation): class VibratingString(Animation):
DEFAULT_CONFIG = { DEFAULT_CONFIG = {
"num_periods" : 1, "num_periods" : 1,
"overtones" : 4, "overtones" : 4,
"amplitude" : 0.5, "amplitude" : 0.5,
"radius" : SPACE_WIDTH/2, "radius" : SPACE_WIDTH/2,
"center" : ORIGIN, "center" : ORIGIN,
"color" : "white", "color" : "white",
"run_time" : 3.0, "run_time" : 3.0,
"alpha_func" : None "alpha_func" : None
} }
def __init__(self, **kwargs): def __init__(self, **kwargs):
digest_config(self, kwargs) digest_config(self, kwargs)