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Data limits in scatter function #3481

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Data limits in scatter function #3481

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3 changes: 2 additions & 1 deletion lib/matplotlib/axes/_axes.py
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Original file line number Diff line number Diff line change
Expand Up @@ -3657,7 +3657,8 @@ def scatter(self, x, y, s=20, c='b', marker='o', cmap=None, norm=None,
if self._ymargin < 0.05 and x.size > 0:
self.set_ymargin(0.05)

self.add_collection(collection)
self.add_collection(collection, autolim=False)
self.update_datalim(offsets)

@efiring efiring Sep 6, 2014

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This doesn't make sense to me. What if transOffset is not transData? It seems like add_collection should be handling all this correctly, and if it isn't then that is what needs to be fixed, not the code in scatter.
My impression is that the problem is coming from the basic design of mpl, in which some variables are set, calculations are done, and then later changes in those variables are not taken into account. The only way around it is a major redesign in which a full dependency relationship is established, and the evaluation occurs only at the last moment.

self.autoscale_view()

return collection
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