8000 Make colorbars constructible with dataless ScalarMappables. by anntzer · Pull Request #12767 · matplotlib/matplotlib · GitHub
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Make colorbars constructible with dataless ScalarMappables. #12767

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Merged
jklymak merged 1 commit into from
Nov 8, 2018
Merged

Make colorbars constructible with dataless ScalarMappables. #12767

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3 changes: 2 additions & 1 deletion lib/matplotlib/colorbar.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1069,7 +1069,8 @@ class Colorbar(ColorbarBase):
def __init__(self, ax, mappable, **kw):
# Ensure the given mappable's norm has appropriate vmin and vmax set
# even if mappable.draw has not yet been called.
mappable.autoscale_None()
if mappable.get_array() is not None:
mappable.autoscale_None()

self.mappable = mappable
kw['cmap'] = cmap = mappable.cmap
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