`fitbounds="locations"` parameter not working for `px.choropleth_map`

[mattiatantardini]

The fitbounds parameter appear not to work when used in choropleth mapbox. The only way I found to pass it to the Figure object was to use the update_geos method.

The following is a sample of the code to show the parameter used:

fig = px.choropleth_mapbox(
        df, 
        geojson=self.geojson,
        featureidkey=self.featureidkey,
        locations="location_code,
        color=self.metric,
        mapbox_style="carto-positron",
        opacity=0.4
    )
fig.update_geos(fitbounds="locations")

When calling fig.show, the plot opens to the (0,0) location in Gulf of Guinea.

Why the fitbounds parameter doesn't work on choropleth mapbox?

[tantardini]

Another example is given by https://stackoverflow.com/q/63787612/16797805. Old question, but still "valid", in the sense that the fitbounds parameter for the choropleth mapbox plot still does not work.

[b-a0]

Also doesn't work on px.choropleth_map(), fig.update_geos(fitbounds="locations") doesn't work either with that choropleth

[camdecoster]

This doesn't work because choropleth_map doesn't support fitbounds yet. That still needs to be added in plotly.js, at which point it can bubble up to Plotly Express. Our docs don't seem to mention this anywhere. This is sort of covered in plotly/plotly.js#3434. There's an open PR to add support to plotly.js in plotly/plotly.js#7911.