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[BUG] RangesUpdate not emitted when using xwheel_pan #11633
Description
The following code triggers the RangesUpdate event when using all the pan/zoom/reset tools, except for the xwheel_pan and ywheel_pan ones. I suspect this is not the intended behavior.
from bokeh.plotting import figure, curdoc
from bokeh.events import RangesUpdate
p = figure(tools=('xwheel_zoom', 'ywheel_zoom', 'xwheel_pan', 'ywheel_pan',
'box_zoom', 'pan', 'reset'))
p.line([1,2], [4,3])
p.on_event(RangesUpdate, lambda evt: print(evt))
curdoc().add_root(p)
This is bokeh 2.4.0, Python 3.9.7, Ubuntu 21.04.
Activity
bryevdv commentedon Sep 17, 2021
I'm sure it needs a call to
added. Quite honestly forget these tools exist, I still don't quite understand the point of a wheel pan. Triaging to land on
branch-3.0since there's already several backports to 2.4.1 this can just be included in one batch.bryevdv commentedon Sep 17, 2021
@alexbjorling if you are interested to make a stab at a PR, you can see how other tools trigger the update:
https://github.com/bokeh/bokeh/search?q=trigger_ranges_update_event
Things should be very similar inside https://github.com/bokeh/bokeh/blob/branch-3.0/bokehjs/src/lib/models/tools/gestures/wheel_pan_tool.ts
alexbjorling commentedon Sep 17, 2021
Oh, for what I'm writing now the wheel pan is perfect. I have a waterfall 2d plot showing vibrational spectra over time. You pan the time axis, and this event causes data from the new time range to be read from the database and shown.
Put in PR #11634, hope it's OK!
github-actions commentedon Oct 26, 2024
This issue has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.