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Beginning chapter 8p2

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This commit is contained in:
Grant Sanderson
2016-08-28 18:26:08 -07:00
parent 5ab7eac8cb
commit 382fc41d37
6 changed files with 1086 additions and 128 deletions
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8
mobject/tex_mobject.py
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@ -93,7 +93,9 @@ class TexMobject(SVGMobject):
def highlight_by_tex(self, tex, color):
if not hasattr(self, "expression_parts"):
raise Exception("Calling highlight_by_tex on a non-composite TexMobject")
if tex == self.get_tex_string():
self.highlight(color)
return self
for submob, part_tex in zip(self.split(), self.expression_parts):
if part_tex == tex:
submob.highlight(color)
@ -105,12 +107,12 @@ class TexMobject(SVGMobject):
)
def add_background_rectangle(self, color = BLACK, opacity = 0.75):
rect = BackgroundRectangle(
self.background_rectangle = BackgroundRectangle(
self, color = color,
fill_opacity = opacity
)
letters = VMobject(*self.submobjects)
self.submobjects = [rect, letters]
self.submobjects = [self.background_rectangle, letters]
return self
class TextMobject(TexMobject):