annotations for mapbox subplots

[ougx]

When it is regular layout it works (see code below).

dcc.Graph(
    id='map',
    figure=dict(
        data=[
            go.Scatter( ... )
        ],
        layout=dict(
            # mapbox=dict(
            #     style='white-bg',
            #     center={'lat':42, 'lon':-97},
            #     zoom=6
            # ),
            annotations=[
                dict(
                    x=-96,
                    y=43,
                    xref='x',
                    yref='y',
                    ax=30,
                    ay=30,
                    text='here',
                    showarrow=True,
                )
            ]
        )
    )
)

But if you uncomment the mapbox section and change go.Scatter to go.Scattermapbox it will always add the annotation to the center of the view and is stagnant even when you move the map.

• replace the result of pip list | grep dash below

dash                          1.14.0
dash-bootstrap-components     0.10.5
dash-core-components          1.10.2
dash-defer-js-import          0.0.2
dash-html-components          1.0.3
dash-renderer                 1.6.0
dash-split-pane               1.0.0
dash-table                    4.9.0
django-plotly-dash            1.4.2

Expected behavior

Mapbox annotations act the same as for regular layouts.

[nicolaskruchten]

This is more of a known scope limitation/feature-request than a bug... layout.annotations only work in paper or 2d-cartesian coordinates today. We would need to add something like mapxbox1 to the possible accepted values of xref and yref to make this work, and it would need to be deeply integrated into our Mapbox code, which is a bit of a project :)

[Ture2019]

Very well its a feature not a bug. Where is the upvote button? How many years does the python community need to wait for an easy to use python library to be able to easily draw on a map? Plotly is our best shot. And annotations are essential!

[nicolaskruchten]

We'd be happy to work with anyone who wants to help contribute such a feature instead of "waiting" :)