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Cache already computed TexMobjects

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This commit is contained in:
Grant Sanderson 2021-01-13 00:11:27 -10:00
parent fda7fff146
commit 6537258f24
1 changed files with 22 additions and 16 deletions
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36
manimlib/mobject/svg/tex_mobject.py
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@ -6,6 +6,7 @@ import itertools as it
from manimlib.constants import * from manimlib.constants import *
from manimlib.mobject.geometry import Line from manimlib.mobject.geometry import Line
from manimlib.mobject.svg.svg_mobject import SVGMobject from manimlib.mobject.svg.svg_mobject import SVGMobject
from manimlib.mobject.types.vectorized_mobject import VMobject
from manimlib.mobject.svg.svg_mobject import VMobjectFromSVGPathstring from manimlib.mobject.svg.svg_mobject import VMobjectFromSVGPathstring
from manimlib.mobject.types.vectorized_mobject import VGroup from manimlib.mobject.types.vectorized_mobject import VGroup
from manimlib.utils.config_ops import digest_config from manimlib.utils.config_ops import digest_config
@ -17,14 +18,10 @@ from manimlib.utils.tex_file_writing import display_during_execution
SCALE_FACTOR_PER_FONT_POINT = 0.001 SCALE_FACTOR_PER_FONT_POINT = 0.001
class TexSymbol(VMobjectFromSVGPathstring): tex_string_to_summobject_map = {}
CONFIG = {
"should_subdivide_sharp_curves": True,
"should_remove_null_curves": True,
}
class SingleStringTexMobject(SVGMobject): class SingleStringTexMobject(VMobject):
CONFIG = { CONFIG = {
"fill_opacity": 1.0, "fill_opacity": 1.0,
"stroke_width": 0, "stroke_width": 0,
@ -37,13 +34,27 @@ class SingleStringTexMobject(SVGMobject):
} }
def __init__(self, tex_string, **kwargs): def __init__(self, tex_string, **kwargs):
digest_config(self, kwargs) super().__init__(**kwargs)
assert(isinstance(tex_string, str)) assert(isinstance(tex_string, str))
self.tex_string = tex_string self.tex_string = tex_string
file_name = tex_to_svg_file( if tex_string not in tex_string_to_summobject_map:
self.get_tex_file_body(tex_string), full_tex = self.get_tex_file_body(tex_string)
filename = tex_to_svg_file(full_tex)
svg_mob = SVGMobject(
filename,
height=None,
path_string_config={
"should_subdivide_sharp_curves": True,
"should_remove_null_curves": True,
}
) )
SVGMobject.__init__(self, file_name=file_name, **kwargs) tex_string_to_summobject_map[tex_string] = svg_mob.submobjects
self.add(*(
sm.copy()
for sm in tex_string_to_summobject_map[tex_string]
))
if self.height is None: if self.height is None:
self.scale(SCALE_FACTOR_PER_FONT_POINT * self.font_size) self.scale(SCALE_FACTOR_PER_FONT_POINT * self.font_size)
if self.organize_left_to_right: if self.organize_left_to_right:
@ -134,11 +145,6 @@ class SingleStringTexMobject(SVGMobject):
def get_tex(self): def get_tex(self):
return self.tex_string return self.tex_string
def path_string_to_mobject(self, path_string):
# Overwrite superclass default to use
# specialized path_string mobject
return TexSymbol(path_string)
def organize_submobjects_left_to_right(self): def organize_submobjects_left_to_right(self):
self.sort(lambda p: p[0]) self.sort(lambda p: p[0])
return self return self