fit_overlays.md

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nbsphinx: hidden
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import folium

FitOverlays

When you add this class to your map, the map will pan and zoom to fit the enabled overlays.

By default, the map won't necessarily show all elements that were added. You may have to pan or zoom out to find them.

If we add the FitOverlays class, it will automatically pan and zoom to show the enabled overlays. In this example we show only the first marker by default. If you enable the second marker, the view changes to include it.

m = folium.Map((52, 0), tiles='cartodbpositron', zoom_start=8)

fg1 = folium.FeatureGroup().add_to(m)
folium.Marker((52, 5)).add_to(fg1)

fg2 = folium.FeatureGroup(show=False).add_to(m)
folium.Marker((52, 5.1)).add_to(fg2)

folium.FitOverlays().add_to(m)

folium.LayerControl().add_to(m)

m

FitOverlays has a couple options:

• padding adds pixels around the bounds.
• max_zoom can be used to prevent zooming in too far.
• fly enables a smoother, longer animation, so you can see how the view changes.
• fit_on_map_load can be used to disable the fitting that happens when the map loads.

Note that padding and max_zoom can achieve the same effect.