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a simple collection of 2d collision/intersects functions. Supports points, circles, ellipses, lines, axis-aligned boxes, and polygons
坐标边界查询工具:使用jts库从省市区县乡镇边界数据或geojson边界数据文件中查找出和任意点、线、面有相交的矢量边界,提供HTTP API接口,内存占用低,性能优良(1秒可查1万个以上坐标对应的城市信息)
A simple quadtree implementation for javascript and typescript (nodejs or browser).
Windows 10 Stand-Alone Application: Create & Manipulate Polygons