Pan draw error in scattergl + rangeslider and multiple yaxis

[nZo-sp]

https://codepen.io/anon/pen/NBbZEg

Actually im using a scattergl plot in a sort of "mixed mode":

• Drawing one trace with scatter in order to enable rangeslider preview
• Drawing all other traces with scattergl in order to have a boost in FPS and CPU usage
  Using this configuration if the user tries to pan, all the scatterlg traces are painted erroneously:

This seems related to the fact that rangeslider is rendered as last.
When rendered the rangeslider sets the viewport and remains unchanged while panning.

This seems fix the problem:
https://github.com/vincex/plotly.js/pull/2

[etpinard]

Thanks for writing in.

This is what I'm seeing off your vincex#2:

which doesn't seem to solve the double drawing problem.

Moreover, I would be reluctant to merge your patch as it could potentially slow down a hot code patch.

I think we should instead dedicate our efforts towards #2627

[nZo-sp]

Ok, we will wait for #2627.
The strange thing is that in my environment the double line bug is not visible instead in a pen with the exact same layout/traces configuration copied from my environment the double line is visible. Thats weird.

[etpinard]

my environment the double line bug is not visible

Are you using a different plotly.js version?

[nZo-sp]

node_modules\plotly.js\dist\plotly.js from 1.39.2 available in npm.

Im trying to replicate even the init flow.
Usually i have axes and traces added dynamically so there are a bunch of relayout and addtraces in the process. Ill let you know if i find something

[nZo-sp]

Here a pen with the full flow, but the doubletrace bug is still there.
https://codepen.io/anon/pen/NBbZEg

Here a shoot of what I have in my environment

[etpinard]

Hmm https://codepen.io/anon/pen/NBbZEg gives me:

Strange.

Oh well, there's probably a lot more things that aren't working properly on scattergl+rangeslider graphs.

Ok if I merge this ticket with #2627 ?

[nZo-sp]

That is perfectly fine #2627 share the same goal.

[etpinard]

Thanks for your help @VinceX !

Merging with #2627