Geometry

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://opendevelopmentstandards.org/schema/1.0.0-rc.2/core/Geometry.json",
  "title": "Geometry",
  "description": "A shape, as a GeoJSON geometry (RFC 7946): a point, a line, an area, or several of one kind. The first and last positions of a polygon ring are the same. GeoJSON has no curves, surfaces or solids: a shape that has them keeps its original.",
  "type": "object",
  "properties": {
    "type": {
      "type": "string",
      "enum": [
        "Point",
        "MultiPoint",
        "LineString",
        "MultiLineString",
        "Polygon",
        "MultiPolygon"
      ],
      "description": "The kind of shape."
    },
    "coordinates": {
      "type": "array",
      "description": "The positions, nested as the type needs."
    },
    "crs": {
      "$ref": "Crs.json"
    },
    "positioning": {
      "$ref": "Positioning.json",
      "description": "How the positions of the shape were obtained and how accurate they are."
    },
    "original": {
      "$ref": "Original.json",
      "description": "The dataset that the shape was converted from, and what the conversion changed."
    },
    "properties": {
      "type": "object",
      "x-ods-open": true,
      "description": "Free-form data about the shape."
    }
  },
  "required": [
    "type",
    "coordinates"
  ],
  "allOf": [
    {
      "if": {
        "properties": {
          "type": {
            "const": "Point"
          }
        }
      },
      "then": {
        "properties": {
          "coordinates": {
            "$ref": "#/$defs/Position"
          }
        }
      }
    },
    {
      "if": {
        "properties": {
          "type": {
            "const": "MultiPoint"
          }
        }
      },
      "then": {
        "properties": {
          "coordinates": {
            "type": "array",
            "items": {
              "$ref": "#/$defs/Position"
            }
          }
        }
      }
    },
    {
      "if": {
        "properties": {
          "type": {
            "const": "LineString"
          }
        }
      },
      "then": {
        "properties": {
          "coordinates": {
            "$ref": "#/$defs/Line"
          }
        }
      }
    },
    {
      "if": {
        "properties": {
          "type": {
            "const": "MultiLineString"
          }
        }
      },
      "then": {
        "properties": {
          "coordinates": {
            "type": "array",
            "items": {
              "$ref": "#/$defs/Line"
            }
          }
        }
      }
    },
    {
      "if": {
        "properties": {
          "type": {
            "const": "Polygon"
          }
        }
      },
      "then": {
        "properties": {
          "coordinates": {
            "$ref": "#/$defs/Polygon"
          }
        }
      }
    },
    {
      "if": {
        "properties": {
          "type": {
            "const": "MultiPolygon"
          }
        }
      },
      "then": {
        "properties": {
          "coordinates": {
            "type": "array",
            "items": {
              "$ref": "#/$defs/Polygon"
            }
          }
        }
      }
    }
  ],
  "patternProperties": {
    "^x-": {}
  },
  "unevaluatedProperties": false,
  "$defs": {
    "Position": {
      "type": "array",
      "minItems": 2,
      "maxItems": 3,
      "items": {
        "type": "number"
      },
      "description": "x, y, and an optional z."
    },
    "Line": {
      "type": "array",
      "minItems": 2,
      "items": {
        "$ref": "#/$defs/Position"
      },
      "description": "Two positions or more."
    },
    "Ring": {
      "type": "array",
      "minItems": 4,
      "items": {
        "$ref": "#/$defs/Position"
      },
      "description": "A closed ring: four positions or more, the last the same as the first."
    },
    "Polygon": {
      "type": "array",
      "minItems": 1,
      "items": {
        "$ref": "#/$defs/Ring"
      },
      "description": "The outer ring, then any holes."
    }
  },
  "examples": [
    {
      "type": "Polygon",
      "coordinates": [
        [
          [
            -114.08,
            51.04
          ],
          [
            -114.06,
            51.04
          ],
          [
            -114.06,
            51.05
          ],
          [
            -114.08,
            51.04
          ]
        ]
      ]
    },
    {
      "type": "LineString",
      "coordinates": [
        [
          -114.08,
          51.04
        ],
        [
          -114.06,
          51.05
        ]
      ],
      "crs": {
        "epsgCode": 4326
      }
    },
    {
      "type": "Polygon",
      "coordinates": [
        [
          [
            -113.8157,
            52.2676
          ],
          [
            -113.8143,
            52.2676
          ],
          [
            -113.8143,
            52.2684
          ],
          [
            -113.8157,
            52.2684
          ],
          [
            -113.8157,
            52.2676
          ]
        ]
      ],
      "positioning": {
        "method": "surveyed",
        "horizontalAccuracy": 0.05,
        "confidenceLevel": 95
      },
      "original": {
        "file": "file-site-plan",
        "layer": "lease_boundary",
        "feature": "17",
        "geometryType": "CurvePolygon",
        "crs": {
          "code": "EPSG:3402"
        },
        "changes": [
          {
            "type": "curves_linearized",
            "tolerance": 0.01
          },
          {
            "type": "reprojected"
          }
        ]
      }
    }
  ],
  "x-ods-status": "draft",
  "x-ods-kind": "datatype",
  "x-ods-module": "core",
  "x-ods-changes": {
    "0.1.0": "First version."
  }
}