Interface ExtendedGeometryCollection<GeometryType>

A GeoJSON-style GeometryCollection which supports GeoJSON geometry objects and additionally GeoSphere.

The generic refers to the type(s) of d3-geo geometry objects contained in the collection.

interface ExtendedGeometryCollection {
    bbox?: number[];
    crs?: {
        properties: any;
        type: string;
    };
    geometries: GeometryType[];
    type: string;
}