Use autolim kwarg in add_collection to prevent duplication of effort.#3100
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tacaswell merged 1 commit intomatplotlib:masterfrom Jun 2, 2014
Merged
Use autolim kwarg in add_collection to prevent duplication of effort.#3100tacaswell merged 1 commit intomatplotlib:masterfrom
tacaswell merged 1 commit intomatplotlib:masterfrom
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This changeset cleans up several problems associated with updating Axes.dataLim. The basic point is that when a method that creates a collection also updates Axes.dataLim, Axes.add_collection() should be called with autolim=False. With autolim=True, add_collection will use a very general method to update the dataLim, but in many cases the method creating the collection can perform the update much more efficiently. Closes matplotlib#3095, which reported a regression that appears to have been introduced by 88b722f.
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This flag is initialized to True by cla(); subsequently, anything that updates the dataLim needs to set it to False so that the updating is cumulative rather than starting again from scratch.
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Use autolim kwarg in add_collection to prevent duplication of effort.
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I think the better solution (but not the quicker solution, so I'm happy this PR was merged) would be to implement an appropriate data limit updater on the QuadMeshCollection - I'm not sure I'll get around to doing this anytime soon, so just wanted to post it here as a reminder.
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This changeset cleans up several problems associated with updating
Axes.dataLim. The basic point is that when a method that creates
a collection also updates Axes.dataLim, Axes.add_collection() should be
called with autolim=False. With autolim=True, add_collection will
use a very general method to update the dataLim, but in many cases
the method creating the collection can perform the update much more
efficiently.
Closes #3095, which reported a regression that appears to have been
introduced by 88b722f.