LA County Boundary

County of Los Angeles boundary for use in web maps and applications, specifically those maintained by the LA County EOC GIS Unit. The official County Boundary from the eGIS Data Repository was "un-merged" and attributes were altered, as follows: TYPE was originally land and may now be mainland or island. NAME was originally Los Angeles County and may now be Los Angeles County, Santa Catalina Island, or San Clemente Island. The polygons were then "re-merged" based on the NAME field. As a result, definition queries may be applied, as needed.本数据集为适用于网络地图及各类地理信息应用的洛杉矶县边界数据，尤其适配由洛杉矶县应急行动中心（Emergency Operations Center, EOC）地理信息系统（Geographic Information System, GIS）单元维护的相关系统。源自电子地理信息系统（eGIS）数据仓库的官方县界数据曾被"解合并"处理，并对其属性进行了调整，具体如下：属性字段"TYPE"的初始值为"陆地（land）"，当前可取值为主陆（mainland）或岛屿（island）；属性字段"NAME"的初始值为"洛杉矶县（Los Angeles County）"，当前可取值为洛杉矶县、圣卡塔利娜岛（Santa Catalina Island）或圣克莱门特岛（San Clemente Island）。随后，系统基于"NAME"字段对多边形要素进行了"重新合并"。因此，可根据实际需求应用定义查询。