{
  "type": "CityJSONExtension",
  "name": "Potato",
  "uri": "https://www.cityjson.org/potato.ext.json",
  "version": "1.1.0",
  "versionCityJSON": "1.1",
  "description": "Extension for Potatoes",
  
  "definitions": {
    "measure": {
      "type": "object",
      "properties": {
        "value": { "type": "number" },
        "uom": { "type": "string" }
      },
      "required": [ "value", "uom" ],
      "additionalProperties": false
    },
    
    "train": {
      "type": "object",
      "properties": {
        "trainType": { "type": "string" },
        "trainTypeCorrection": { "$ref": "#/definitions/measure" },
        "brakePortionDay": { "$ref": "#/definitions/measure" },
        "brakePortionEvening": { "$ref": "#/definitions/measure" },
        "brakePortionNight": { "$ref": "#/definitions/measure" },
        "lengthDay": { "$ref": "#/definitions/measure" },
        "lengthEvening": { "$ref": "#/definitions/measure" },
        "lengthNight": { "$ref": "#/definitions/measure" },
        "speedDay": { "$ref": "#/definitions/measure" },
        "speedEvening": { "$ref": "#/definitions/measure" },
        "speedNight": { "$ref": "#/definitions/measure" },
        "additionalCorrectionTrain": { "$ref": "#/definitions/measure" }
      },
      "additionalProperties": false
    }
  },
  
  "extraRootProperties": {},
  "extraAttributes": {},

  "extraCityObjects": {
    "_AbstractPotato": {
      "properties": {
        "attributes": { 
          "type": "object" 
        },
        "colours": {
          "type": "array",
          "items": {
            "type": "string"
          }
        }
      }
    },

    "+Potato": {
      "allOf": [
        { "$ref": "#/extraCityObjects/_AbstractPotato" },
        {
          "properties": {
            "type": { "enum": [ "+Potato" ] },
            "attributes": {
              "type": "object",
              "properties": {
                "reflection": { "type": "string" },
                "reflectionCorrection": { "$ref": "#/definitions/measure" },
                "height": { "$ref": "#/definitions/measure" },
                "distance": { "$ref": "#/definitions/measure" }
              }
            },
            "geometry": {
              "type": "array",
              "items": {
                "oneOf": [
                  { "$ref": "geomprimitives.schema.json#/Solid" }
                ]
              }
            }
          },
          "required": [ "type", "geometry" ]
        }
      ]
    }

  }  
}