{
	"type": "CityJSONExtension",
	"name": "UrbanGreen",
	"description": "Extension to model urban green elements",
	"uri": "https://someurl.org/urbangreen.ext.json",
	"version": "0.1.0",
	"versionCityJSON": "1.0",
	"extraRootProperties": {},     
  
	"extraAttributes": {
		"SolitaryVegetationObject": {
			"+objectId": {
				"type": "object",
				"properties": {
					"value": { "type:" "number" }
			},
			"+protected": {
				"type": "object",
				"properties": {
					"value": { "type:" "boolean" }
			},
			"+dataSource": {
				"type": "object",
				"properties": {
					"value": { "type:" "string", "enum": ["planned", "existing"] }
			},
			"+randomSeed": {
				"type": "object",
				"properties": {
					"value": { "type:" "number" }
			},
			"+latestSurveyYear": {
				"type": "object",
				"properties": {
					"value": { "type:" "number" }
			},
			"+projectedYear": {
				"type": "object",
				"properties": {
					"value": { "type:" "number" }
			},
			"+stemHeightStreetSide": {
				"type": "object",
				"properties": {
					"value": { "type:" "number" }
			},
			"+stemHeightForestSide": {
				"type": "object",
				"properties": {
					"value": { "type:" "number" }
			},
			"+creator": {
				"type": "object",
				"properties": {
					"value": { "type:" "string" }
			},
			"+creatorTimeStamp": {
				"type": "object",
				"properties": {
					"value": { "type:" "number" }
			},
			"+editor": {
				"type": "object",
				"properties": {
					"value": { "type:" "string" }
			},
			"+editorTimeStamp": {
				"type": "object",
				"properties": {
					"value": { "type:" "number" }
			},
			"+planId": {
				"type": "object",
				"properties": {
					"value": { "type:" "number" }
			},
		},
		
		"PlantCover": {
			"+objectId": {
				"type": "object",
				"properties": {
					"value": { "type:" "number" }
			},
			"+habitatType": {
				"type": "object",
				"properties": {
					"value": { "type:" "number" }
			},
			"+alternativeHabitatType": {
				"type": "object",
				"properties": {
					"value": { "type:" "number" }
			"+maintenanceClass": {
				"type": "object",
				"properties": {
					"value": { "type:" "number", "enum": ["weekly", "onceperyear", "twiceperyear", "nomaintenance"] }
			},
			"+randomSeed": {
				"type": "object",
				"properties": {
					"value": { "type:" "number" }
			},			
			"+dataSource": {
				"type": "object",
				"properties": {
					"value": { "type:" "string", "enum": ["planned", "existing"] }
			},
			"+year": {
				"type": "object",
				"properties": {
					"value": { "type:" "number" }
		}
	},

	"extraCityObjects": {
		"+RegionalGreenFactorLayer": {
			"properties": {
				"type": "object",
				"attributes": {
					"layerNumber": {"type": "number", "minimum": 1, "maximum": 43 }
				}
			}
		}
	}
}