Sw Valve (OpenData)

SwValve represents a device to control the flow of fluid in the Stormwater network. The Stormwater network transports surface water from the land and roading system into the waterway network or ocean. It is spatially abstracted to a point, and is a node on the Stormwater network. IDS-compliant SwValve data will be inserted via the SwValveStage table. When deleted or edited, the record is Archived. A snapshot of the feature record, before it is edited, will be sent to the archive table immediately prior to the first edit of the day for that record. SwValve assets are represented in SAP as equipment objects. Entity type: Thing. Projection: New Zealand Transverse Mercator (NZTM) - EPSG: 2193 Vertical datum: New Zealand Vertical Datum 2016 (NZVD2016) - EPSG: 7839SwValve是一种用于管控雨水管网（Stormwater network）内流体流量的设备。雨水管网负责将陆地及道路系统产生的地表径流输送至河网或海洋。该设备在空间上被抽象为一个点位，为雨水管网中的节点。符合IDS规范的SwValve数据将通过SwValveStage表完成录入。当数据记录被删除或编辑时，该记录将被归档。在该记录当日首次编辑之前，其编辑前的要素记录快照将被即时发送至归档表。SwValve资产在SAP系统中以设备对象的形式进行表征。实体类型：事物（Thing）。投影坐标系：新西兰横轴墨卡托投影（New Zealand Transverse Mercator, NZTM）——EPSG:2193。垂直基准面：2016年新西兰垂直基准面（New Zealand Vertical Datum 2016, NZVD2016）——EPSG:7839