Y-axis autoscale with Range Selector - layout.on_change not recognized

📊 Plotly Python
1

Trying to autoscale the yaxis when using the range selector but seems to not be getting called at all? Trying to adapt solution found here to work with rangeselector. I currently have

def zoom(layout, x_range):
  print('yaxis updated')
  in_view = df.loc[figure.layout.xaxis.range[0]:figure.layout.xaxis.range[1]]
  figure.layout.yaxis.range = [in_view.High.min() - 10, in_view.High.max() + 10]


def build_plot():
  .
  .
  .
  figure=go.FigureWidget(data=data, layout=layout)
  figure.layout.on_change(zoom, 'xaxis.range')

Right now I’m not even seeing the print statement in the console. Is this only possible with range slider or am I simply making some other mistake as only the xaxis is changing? Also, I’m rendering directly in html (flask render_template) not using juypter; originally I was just using go.Figure but I went to go.FigureWidget so I could use the on_change callback. Not certain where I should go at this point so any feedback is welcome.

2

Hi @cartier,

FigureWidget is a custom ipywidget (https://ipywidgets.readthedocs.io/en/stable/), so it will only work in the Jupyter context. The main options for this are the Jupyter notebook, JupyterLab, or voila (https://github.com/QuantStack/voila) for a standalone dashboard.

You could also do this using Dash (https://dash.plot.ly/) using a relayoutData callback.

-Jon

3

Hey @jmmease thanks for letting me know. Looked at this post too but not sure they ever got it working…

4

Hi @mcox. Saw your post here that’s a little over 2years old. Just a shot in the dark but I was wondering if you ever made any progress. Running into a similar issue…