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Changes in plot size can cause range events to loop #3614

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philippjfr opened this issue Apr 9, 2019 · 3 comments

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commented Apr 9, 2019

When using a dynamic downsampling or aggregation operation with both RangeXY and PlotSize streams such as the rasterize operation it is possible to get in a state where events end up bouncing back and forth. While there is logic to prevent this happening already it does not account for the fact that if framewise=True a change in the PlotSize can trigger a range event. If the plot size is changing because the tick labels are getting longer plot size and range events will continuously bounce back and forth.

@philippjfr philippjfr added this to the v1.12.1 milestone Apr 9, 2019

@jbednar

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commented Apr 9, 2019

Yes, I have seen that, though I've never been able to capture it reproducibly. Probably there's some case where tick labels get enormous that would make it reliable to reproduce.

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commented Apr 9, 2019

@jsignell gave me such an example, which is how I was able to figure it out. Will try to think of a fix today.

@youngsaj

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commented Apr 10, 2019

This is highly likely the issue I'm seeing as well. @philippjfr I sent you an email with details, and potentially another way to duplicate this.

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