Redo colorbar overhaul. · matplotlib/matplotlib@277b5eb · GitHub
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jklymakjklymak
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Redo colorbar overhaul.
Previous overhaul packaged an inner and outer axes in a container "ColorbarAxes" and tried to dispatch methods between them. This overhaul takes the _much_ simpler approach of resizing the image using a custom _axes_locator that a) calls any existing locator b) or just uses the axes default position. The custom _axes_locator then shrinks the axes in the appropriate direction to make room for extend tri/rectangles. As with the previous fix, the extend tri/rectangles are drawn as patches in axes co-ordinates, rather than pcolormesh in "data" co-ordinates.
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‎doc/api/next_api_changes/behavior/20054-JMK.rst‎

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‎lib/matplotlib/_constrained_layout.py‎

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@@ -575,7 +575,11 @@ def _reposition_colorbar(cbax, renderer, *, offset=None):
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pbcb = trans_fig_to_subfig.transform_bbox(pbcb)
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cbax.set_transform(fig.transSubfigure)
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cbax._set_position(pbcb)
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cbax.set_aspect(aspect, anchor=anchor, adjustable='box')
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cbax.set_anchor(anchor)
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if location in ['bottom', 'top']:
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aspect = 1 / aspect
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cbax.set_box_aspect(aspect)
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cbax.set_aspect('auto')
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return offset
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‎lib/matplotlib/axes/_base.py‎

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