摘要
给出KML空间数据查询的解决方案,并在基于Google地图建立的Web地理信息系统中予以实现.该方案采用Linq to XML方法实现KML属性查询,采用Net Topology Suite计算空间对象之间的拓扑关系,综合应用此两种技术解决KML空间查询.基于此方案,在VS2010中开发出一套交互式KML空间查询工具,包括点选、连选、区域选择、依属性选择、去选等.
A solution of spatial data query for KML is presented and then realized in Google Maps - based Web GIS. The solution is based on two technologies： Linq to XML which is used to handle text query for KML effi- ciently and Net Topology Suite which is employed to compute the topological relationship between two linear 2D geometries, whose joint utilization leads to the accomplishment of the spatial data query for KML. Furthermore, the solution is turned into a set of interactive spatial query tools for KML in VS 2010, which includes selecting a single object, selecting objects one by one, selecting object（s） within a region, selecting object（s） based on some attribute （s） and removing a certain object from collection of selected objects.
出处
《昆明理工大学学报（自然科学版）》
CAS
北大核心
2013年第5期22-27,共6页
Journal of Kunming University of Science and Technology(Natural Science)
基金
陕西省自然科学基础研究计划项目(2009JM8019)
