Geographical map that zooms to and highlights a given country

Dash Python
1

Hi all,

I’m trying to have a geographical map that zooms to and highlights a country depending on the value of a drop down. I couldn’t find the perfect solution but for now I am using a Choropleth and passing a single location. However, I can’t figure out how to set the zoom for this map.

I’d appreciate any leads on how to set the default zoom or on a better way of achieving this.

Thanks a lot!

1 Like
2

Hi @shanv, the 4.5 release of plotly (last week! See 📣 Announcing Plotly.py 4.5) introduced a fitbounds attributed to geo layout in order to zoom on represented data only. See for example https://plot.ly/python/map-configuration/#automatic-zooming-or-bounds-fitting

2 Likes
3

Thanks, that’s a great feature.

Unfortunately, I’m restricted to using plotly 4.4.1

Do you have any suggestions for this case?

4

oh no… sorry to hear that you cannot use our recent improvements. As a workaround you can retrieve latitude and longitude coordinates of countries, store them in a dataframe and update manually the lataxis_range and lonaxis_range (https://plot.ly/python/map-configuration/#map-projections)

5

Just curious, why are you restricted? Is there something in our code preventing you from upgrading or is this latest version not available on your internal network?

6

Ah perfect. This works great, thanks so much!

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It’s not available on the network as of now