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Allow passing a buff to LabeledDot #4403

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Allow passing a buff to LabeledDot #4403

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85fac41
Give LabeledDot a buffer and improve radius calculation
nubDotDev Aug 17, 2025
be9e504
fix norm calculation
nubDotDev Aug 17, 2025
1ff212a
documentation
nubDotDev Aug 17, 2025
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10 changes: 7 additions & 3 deletions manim/mobject/geometry/arc.py
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Original file line number Diff line number Diff line change
Expand Up @@ -757,8 +757,9 @@ class LabeledDot(Dot):
representing rendered strings like :class:`~.Text` or :class:`~.Tex`
can be passed as well.
radius
The radius of the :class:`Dot`. If ``None`` (the default), the radius
is calculated based on the size of the ``label``.
The radius of the :class:`Dot`. If provided, the ``buff`` is ignored.
If ``None`` (the default), the radius is calculated based on the size
of the ``label`` and the ``buff``.

Examples
--------
Expand All @@ -784,6 +785,7 @@ def __init__(
self,
label: str | SingleStringMathTex | Text | Tex,
radius: float | None = None,
buff: float = SMALL_BUFF,
**kwargs: Any,
) -> None:
if isinstance(label, str):
Expand All @@ -794,7 +796,9 @@ def __init__(
rendered_label = label

if radius is None:
radius = 0.1 + max(rendered_label.width, rendered_label.height) / 2
radius = buff + float(
np.linalg.norm([rendered_label.width, rendered_label.height]) / 2
)
super().__init__(radius=radius, **kwargs)
rendered_label.move_to(self.get_center())
self.add(rendered_label)
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