ReadJson read json file and unmarshal it to GeoCollection.

Feature represents a single feature.

GeoCollection represents geojson collection of features.

Geometry represents geojson feature geometry.

Properties represents geojson feature properties.

Line is 2d line representing side of polygon or end of a line.

Point is 2d point representing edge of polygon or end of a line order is {lon, lat}.

Polygon is a multi vertices object order is {lon, lat}.