Sw Invert (OpenData)

SwInvert represents a node position on the pipe where the reduced level of the floor of the pipe on the inside was measured - must be coincident with the pipe. It is spatially abstracted to a point Entity type: Concept Projection: New Zealand Transverse Mercator (NZTM) - EPSG: 2193 Vertical datum: New Zealand Vertical Datum 2016 (NZVD2016) - EPSG: 7839

SwInvert（SwInvert）指管道上的节点位置，该处测量得到管道内部管底的归化高程，且该节点必须与管道空间重合。该对象在空间上被抽象为点实体，实体类型：概念。其空间参考信息如下：投影坐标系采用新西兰横轴墨卡托投影（New Zealand Transverse Mercator, NZTM），EPSG代码为2193；垂直基准面采用2016年新西兰垂直基准面（New Zealand Vertical Datum 2016, NZVD2016），EPSG代码为7839。