def construct(self):
words = TexText("Change we can believe in")
change = VMobject(*words.split()[:6])
top = TOP(radius = 0.75)
top.shift(change.get_right()-top.get_right())
self.play(Write(words))
self.play(
FadeOut(change),
GrowFromCenter(top)
)
self.wait(3)
def get_log_anim(self, center):
O_log_n = Tex(["O(", "\\log(n)", ")"])
O_log_n.shift(center)
log_n = O_log_n.split()[1]
#super hacky
g = log_n.split()[2]
for mob in g.submobjects:
mob.is_subpath = False
mob.set_fill(BLACK, 1.0)
log_n.add(mob)
g.submobjects = []
#end hack
top = TOP(2, None, "n", radius = 0.75)
top.set_width(log_n.get_width())
top.shift(log_n.get_center())
new_O_log_n = O_log_n.copy()
new_O_log_n.submobjects[1] = top
return Transform(O_log_n, new_O_log_n)
def get_exp_anim(self, center):
epii = Tex("e^{\\pi i} = -1")
epii.shift(center)
top = TOP("e", "\\pi i", "-1", radius = 0.75)
top.shift(center)
e, pi, i, equals, minus, one = epii.split()
##hacky
loop = e.submobjects[0]
loop.is_subpath = False
loop.set_fill(BLACK, 1.0)
e.submobjects = []
##
start = VMobject(
equals,
VMobject(e, loop),
VMobject(pi, i),
VMobject(minus, one)
)
return Transform(start, top)