{
  "type": "CityJSON_Extension",
  "name": "PipeLine",
  "uri": "http://www.smartearth.cn/extension.schema. PipeLine.json",
  "version": "1.0.0",
  "description": "Extension for PipeLine model",
  "extraCityObjects": {
    "+PipeLine": {
      "allOf": [
        {
          "$ref": "../cityobjects.schema.json#/_AbstractCityObject"
        },
        {
          "properties": {
            "type": {
              "enum": [
                "+PipeLine"
              ]
            },
            "topLevel": {
              "type": "boolean"
            },
            "attributes": {
              "type": "object",
              "properties": {
                "function": {
                  "type": "string"
                },
                "bs": {
                  "type": "object",
                  "description": "标识",
                  "properties": {
                    "qqwybs": {
                      "type": "string",
                      "description": "全球唯一编码"
                    },
                    "hydm": {
                      "type": "string",
                      "description": "行业代码"
                    },
                    "fldm": {
                      "type": "string",
                      "description": "分类代码"
                    },
                    "mc": {
                      "type": "string",
                      "description": "名称"
                    }
                  }
                },
                "zt": {
                  "type": "object",
                  "description": "状态",
                  "properties": {
                    "ztgb": {
                      "type": "string",
                      "description": "状态改变"
                    }
                  }
                },
                "sk": {
                  "type": "object",
                  "description": "时空",
                  "properties": {
                    "cssj": {
                      "type": "string",
                      "description": "产生时间"
                    },
                    "gxsj": {
                      "type": "string",
                      "description": "更新时间"
                    },
                    "xwsj": {
                      "type": "string",
                      "description": "消亡时间"
                    }
                  }
                },
                "ssxzq": {
                  "type": "string",
                  "description": "所属行政区域"
                }
              }
            },
            "children": {
              "type": "array",
              "items": {
                "type": "string"
              }
            },
            "geometry": {
              "type": "array",
              "items": {
                "oneOf": [
                  {
                    "$ref": "geomprimitives.schema.json#/MultiPoint"
                  },
                  {
                    "$ref": "geomprimitives.schema.json#/MultiLineString"
                  },
                  {
                    "$ref": "geomprimitives.schema.json#/MultiSurface"
                  },
                  {
                    "$ref": "geomprimitives.schema.json#/CompositeSurface"
                  },
                  {
                    "$ref": "geomprimitives.schema.json#/Solid"
                  },
                  {
                    "$ref": "geomprimitives.schema.json#/CompositeSolid"
                  },
                  {
                    "$ref": "geomprimitives.schema.json#/MultiSolid"
                  },
                  {
                    "$ref": "geomtemplates.schema.json#/GeometryInstance"
                  }
                ]
              }
            }
          },
          "required": [
            "type",
            "topLevel",
            "geometry"
          ]
        }
      ]
    }
  }
}