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Fixed inconsistent stroke width scaling for text in compound objects (#4694)

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* fixed zero-stroke mobject scaling

* updated vectorized_mobject scale docstring text
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Vihaan Dutta 2026-04-19 16:10:14 -04:00 • committed by GitHub
commit 429f25328d
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1 changed files with 15 additions and 7 deletions
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22
manim/mobject/types/vectorized_mobject.py
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@ -500,8 +500,10 @@ class VMobject(Mobject):
will shrink, and for :math:`|\alpha| > 1` it will grow. Furthermore,
if :math:`\alpha < 0`, the mobject is also flipped.
scale_stroke
Boolean determining if the object's outline is scaled when the object is scaled.
If enabled, and object with 2px outline is scaled by a factor of .5, it will have an outline of 1px.
Boolean determining if each submobject's outline is scaled when the object
is scaled. If enabled, each submobject keeps its relative stroke width (for
example, a submobject with a 2px outline scaled by a factor of .5 will have
a 1px outline, while a submobject with 0px stroke remains at 0px).
kwargs
Additional keyword arguments passed to
:meth:`~.Mobject.scale`.
@ -538,11 +540,17 @@ class VMobject(Mobject):
"""
if scale_stroke:
self.set_stroke(width=abs(scale_factor) * self.get_stroke_width())
self.set_stroke(
width=abs(scale_factor) * self.get_stroke_width(background=True),
background=True,
)
for mob in self.get_family():
if isinstance(mob, VMobject):
mob.set_stroke(
width=abs(scale_factor) * mob.get_stroke_width(),
family=False,
)
mob.set_stroke(
width=abs(scale_factor) * mob.get_stroke_width(background=True),
background=True,
family=False,
)
super().scale(scale_factor, about_point=about_point, about_edge=about_edge)
return self