altair.topo_feature

altair.topo_feature(url, feature, **kwargs)

A convenience function for extracting features from a topojson url.

Parameters:

urlstring

An URL from which to load the data set.

featurestring

The name of the TopoJSON object set to convert to a GeoJSON feature collection. For example, in a map of the world, there may be an object set named “countries”. Using the feature property, we can extract this set and generate a GeoJSON feature object for each country.

**kwargs

additional keywords passed to TopoDataFormat