DP Flood Management Lake Ellesmere Line (OpenData)

This entity describes land prone to flooding from Te Waihora/ Lake Ellesmere, for which a minimum building floor height is specified in the District Plan. The affected area is represented by a compound geometry consisting of a line and an area. The Feature DPFloodMgmtLakeEllesmereArea contains area geometry The Feature DPFloodMgmtLakeEllesmereLine contains line geometry The linear component follows a ground contour and forms the landward boundary of the compound geometry. The linear feature is extended to an area geometry to take in the Rating Units affected by the restriction. The linear geometry to be used for cartographic purposes on the planning maps and by the District Plan Property Search tool. The area geometry enables the generation of property condition comments. It is spatially abstracted to a Line. Entity Type: Concept.本实体描述了特怀霍拉湖（Lake Ellesmere，埃尔斯米尔湖）周边易受洪涝影响的土地，该区域在《区域规划》中明确规定了建筑最低层高要求。受影响区域由包含线要素与面要素的复合几何图形表示。其中要素DPFloodMgmtLakeEllesmereArea包含面几何图形，要素DPFloodMgmtLakeEllesmereLine包含线几何图形。该线要素沿地面等高线分布，构成复合几何图形的陆侧边界。为覆盖受此限制约束的评税单元，该线要素被扩展为面几何图形。线几何图形将用于规划地图的制图作业，并供《区域规划》房产查询工具调用；面几何图形则用于生成房产状况备注信息。该面几何图形在空间层面被抽象为线要素。实体类型：概念。