1. Display a different geoJSON
  2. Shapefile, KML, and geoJSON files are available at this site
  3. Adjust scale and size of map

Displaying a geoJSON

Defined in 2008, GeoJSON is a format for encoding a variety of geographic data structures. A GeoJSON object may represent a geometry, a feature, or a collection of features. geoJSON supports the following geometry types: Point, LineString, Polygon, MultiPoint, MultiLineString, MultiPolygon, and GeometryCollection. Features in GeoJSON contain a geometry object and additional properties, and a feature collection represents a list of features. The following defines Arizona along with some of the initial coordinates:
{ "type": "Feature", "properties": { "GEO_ID": "0400000US04", "STATE": "04", "NAME": "Arizona", "LSAD": "", "CENSUSAREA": 113594.084000 }, "geometry": { "type": "Polygon", "coordinates": [ [ [ -112.538593, 37.000674 ], [ -112.534545, 37.000684 ], [ -112.368946, 37.001125 ], [ -112.357690, 37.001025 ], [ -111.412784, 37.001478 ], [ -111.405869, 37.001481 ], [ -111.405517, 37.001497 ],