{
  "$schema": "http://json-schema.org/draft-04/schema#",
  "id": "geojson.json#",
  "title": "GeoJSON object",
  "description": "GeoJSON is a format for encoding a variety of geographic data structures. A GeoJSON object may represent a geometry, a feature, or a collection of features. \n\nGeoJSON supports the following geometry types: Point, LineString, Polygon, MultiPoint, MultiLineString, MultiPolygon, and GeometryCollection. Features in GeoJSON contain a geometry object and additional properties, and a feature collection represents a list of features. \n\nSee http://geojson.org for the full specification.",
  "type": "object",
  "required": ["type"],
  "properties": {
    "crs": {
      "description": "The coordinate reference system (CRS) of a GeoJSON object.",
      "$ref": "crs.json#"
    },
    "bbox": {
      "$ref": "bbox.json#"
    }
  },
  "oneOf": [
    {
      "$ref": "geometry.json#"
    }, {
      "$ref": "#/definitions/geometryCollection"
    }, {
      "$ref": "#/definitions/feature"
    }, {
      "$ref": "#/definitions/featureCollection"
    }
  ],
  "definitions": {
    "geometryCollection": {
      "title": "GeometryCollection",
      "description": "A collection of geometry objects",
      "translation": {
        "ISO 19115-2": ["EX_Extent > geographicElement > EX_BoundingPolygon > polygon > MultiGeometry"]
      },
      "required": ["geometries"],
      "properties": {
        "type": {
          "enum": ["GeometryCollection"],
          "description": "Type of geometry object."
        },
        "geometries": {
          "type": "array",
          "description": "The set of geometry objects constituting the GeometryCollection.",
          "translation": {
            "ISO 19115-2": ["EX_Extent > geographicElement > EX_BoundingPolygon > polygon > MultiGeometry > geometryMembers"]
          },
          "items": {
            "$ref": "geometry.json#"
          }
        }
      }
    },
    "feature": {
      "title": "Feature",
      "description": "A GeoJSON object with the type \"Feature\" is a feature object. A feature object has a geometry, properties, and an optional identifier.",
      "required": ["geometry", "properties"],
      "properties": {
        "type": {
          "enum": ["Feature"],
          "description": "Type of GeoJSON object."
        },
        "geometry": {
          "description": "The geometry object associated with the Feature.",
          "oneOf": [
            {
              "type": "null",
              "title": "null geometry",
              "description": "A feature object with no associated geometry. For example, a null value may be used when defining a bounding box only."
            }, {
              "$ref": "geometry.json#"
            }
          ]
        },
        "properties": {
          "$ref": "#/definitions/featureProperties"
        },
        "id": {
          "type": ["string", "number"],
          "description": "Unique identifier for the GeoJSON feature object.",
          "translation": {
            "ISO 19115-2": ["geographicElement > EX_BoundingPolygon > polygon > [Point, LineString, Polygon] @id"]
          }
        }
      }
    },
    "featureCollection": {
      "title": "FeatureCollection",
      "description": "A GeoJSON object comprised of multiple Feature objects.",
      "required": ["features"],
      "properties": {
        "type": {
          "enum": ["FeatureCollection"],
          "description": "Type of GeoJSON object."
        },
        "properties": {
          "$ref": "#/definitions/featureProperties"
        },
        "id": {
          "type": ["string", "number"],
          "description": "Unique identifier for the GeoJSON object.",
          "translation": {
            "ISO 19115-2": ["geographicElement > EX_BoundingPolygon > polygon > [Point, LineString, Polygon] @id"]
          }
        },
        "features": {
          "type": "array",
          "description": "Set of Features constituting the FeatureCollection.",
          "translation": {
            "ISO 19115-2": ["geographicElement > EX_BoundingPolygon > polygon > MultiGeometry"]
          },
          "items": {
            "$ref": "#/definitions/feature"
          }
        }
      }
    },
    "featureProperties": {
      "title": "FeatureProperties",
      "description": "JSON object containing information about a feature or collection.",
      "oneOf": [
        {
          "title": "null",
          "type": "null",
          "description": "A feature object with no identified properties."
        }, {
          "type": "object",
          "title": "featureProperties",
          "properties": {
            "includesData": {
              "type": "boolean",
              "description": "A boolean indicating whether geographic object is defining an extent, or used to describe an area of exception, such as \"holes\" in polygons.",
              "translation": {
                "ISO 19115-2": ["EX_Extent > geographicElement > EX_GeographicBoundingBox > extentTypeCode", "EX_Extent > geographicElement > EX_BoundingPolygon > extentTypeCode"]
              }
            },
            "temporalElement": {
              "description": "The temporal reference associated with an feature.",
              "$ref": "../extent.json#/definitions/temporalElement"
            },
            "verticalElement": {
              "type": "array",
              "description": "The vertical extent of the feature geometry.",
              "items": {
                "$ref": "../extent.json#/definitions/verticalExtent"
              }
            },
            "description": {
              "type": "string",
              "description": "A description of the feature.",
              "translation": {
                "ISO 19115-2": ["geographicElement > EX_BoundingPolygon > polygon > [Point, LineString, Polygon] > description"]
              }
            },
            "featureName": {
              "type": "string",
              "description": "A title associated with a feature.",
              "translation": {
                "ISO 19115-2": ["geographicElement > EX_BoundingPolygon > polygon > [Point, LineString, Polygon] > name"]
              }
            },
            "featureScope": {
              "type": "string",
              "description": "Scope of the geographic feature."
            },
            "featureAcquisitionMethod": {
              "type": "string",
              "description": "Method used to establish the position of the geographic feature. "
            },
            "identifier": {
              "type": "array",
              "description": "Identifier for the geographic element with optional cited authority.",
              "translation": {
                "ISO 19115-2": ["geographicElement > EX_GeographicDescription > geographicIdentifier > MD_Identifier"]
              },
              "items": {
                "$ref": "../citation.json#/definitions/identifier"
              }
            }
          }
        }
      ]
    }
  }
}