{
  "$schema": "http://json-schema.org/draft-04/schema#",
  "id": "geojson",
  "description": "GeoJSON types as defined by GeoJSON",
  "definitions": {
    "point": {
      "title": "Point",
      "type": "object",
      "properties": {
        "type": { "enum": [ "Point" ] },
        "coordinates": { "$ref": "#/definitions/position" }
      },
      "required": [ "type", "coordinates" ]
    },
    "multipoint": {
      "title": "MultiPoint",
      "type": "object",
      "properties": {
        "type": { "enum": [ "MultiPoint" ] },
        "coordinates": { "$ref": "#/definitions/positionArray" }
      },
      "required": [ "type", "coordinates" ]
    },
    "linestring": {
      "title": "LineString",
      "type": "object",
      "properties": {
        "type": { "enum": [ "LineString" ] },
        "coordinates": { "$ref": "#/definitions/lineString" }
      },
      "required": [ "type", "coordinates" ]
    },
    "multilinestring": {
      "title": "MultiLineString",
      "type": "object",
      "properties": {
        "type": { "enum": [ "MultiLineString" ] },
        "coordinates": {
          "type": "array",
          "items": { "$ref": "#/definitions/lineString" }
        },
        "required": [ "type", "coordinates" ]
      }
    },
    "polygon": {
      "title": "Polygon",
      "type": "object",
      "properties": {
        "type": { "enum": [ "Polygon" ] },
        "coordinates": { "$ref": "#/definitions/linearRingArray" }
      },
      "required": [ "type", "coordinates" ]
    },
    "multipolygon": {
      "title": "MultiPolygon",
      "type": "object",
      "properties": {
        "type": { "enum": [ "MultiPolygon" ] },
        "coordinates": {
          "type": "array",
          "items": { "$ref": "#/definitions/linearRingArray" }
        }
      },
      "required": [ "type", "coordinates" ]
    },
    "position": {
      "description": "A single position",
      "type": "array",
      "minItems": 2,
      "items": [ { "type": "number" }, { "type": "number" } ],
      "additionalItems": false
    },
    "positionArray": {
      "description": "An array of positions",
      "type": "array",
      "items": { "$ref": "#/definitions/position" }
    },
    "lineString": {
      "description": "An array of two or more positions",
      "allOf": [
          { "$ref": "#/definitions/positionArray" },
          { "minItems": 2 }
      ]
    },
    "linearRing": {
      "description": "An array of four positions where the first equals the last",
      "allOf": [
          { "$ref": "#/definitions/positionArray" },
          { "minItems": 4 }
      ]
    },
    "linearRingArray": {
      "description": "An array of linear rings",
      "type": "array",
      "items": { "$ref": "#/definitions/linearRing" }
    }
  }
}