Geojson
GeoJSON - geographic Javascript Object Notation - is a way of representing geographic features in an [XML]-like format.
{
"type": "Feature",
"geometry": {
"type": "Polygon",
"coordinates": [
[
[100.0, 0.0], [101.0, 0.0], [101.0, 1.0], [100.0, 1.0],
[100.0, 0.0]
]
]
},
"properties": {
"prop1": {
"this": "that"
},
"prop0": "value0"
}
}