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Deprecate point_at_t and document that a BezierSegment can be called #30070

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Deprecate point_at_t and document that a BezierSegment can be called #30070

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1 change: 1 addition & 0 deletions doc/api/bezier_api.rst
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Original file line number Diff line number Diff line change
Expand Up @@ -5,4 +5,5 @@
.. automodule:: matplotlib.bezier
:members:
:undoc-members:
:special-members: __call__
:show-inheritance:
4 changes: 4 additions & 0 deletions doc/api/next_api_changes/deprecations/30070-OG.rst
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@@ -0,0 +1,4 @@
``BezierSegment.point_at_t``
~~~~~~~~~~~~~~~~~~~~~~~~~~~~

... is deprecated. Instead, it is possible to call the BezierSegment with an argument.
8 changes: 6 additions & 2 deletions lib/matplotlib/bezier.py
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Expand Up @@ -190,6 +190,9 @@ class BezierSegment:
"""
A d-dimensional Bézier segment.

A BezierSegment can be called with an argument, either a scalar or an array-like
object, to evaluate the curve at that/those location(s).

Parameters
----------
control_points : (N, d) array
Expand Down Expand Up @@ -223,6 +226,8 @@ def __call__(self, t):
return (np.power.outer(1 - t, self._orders[::-1])
* np.power.outer(t, self._orders)) @ self._px

@_api.deprecated(
"3.11", alternative="Call the BezierSegment object with an argument.")
def point_at_t(self, t):
"""
Evaluate the curve at a single point, returning a tuple of *d* floats.
Expand Down Expand Up @@ -336,10 +341,9 @@ def split_bezier_intersecting_with_closedpath(
"""

bz = BezierSegment(bezier)
bezier_point_at_t = bz.point_at_t

t0, t1 = find_bezier_t_intersecting_with_closedpath(
bezier_point_at_t, inside_closedpath, tolerance=tolerance)
lambda t: tuple(bz(t)), inside_closedpath, tolerance=tolerance)

_left, _right = split_de_casteljau(bezier, (t0 + t1) / 2.)
return _left, _right
Expand Down
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