Turf是一个JavaScript的模块化的GIS引擎，它执行地理空间与GeoJSON数据处理任务,可以在服务器或在浏览器上运行。
Node.js示例代码：
// fid all the sakes withi 1 mile of a wombatvar turf = require('turf');var fs = require('fs');var wombats = fs.readFileSyc('./wombats.geojso');var sakes = fs.readFileSyc('./sakes.geojso');var oeMileRig = turf.buffer(wombats, 1, 'miles');var sakesNearWombats = turf.withi(sakes, oeMileRig);cosole.log(sakesNearWombats);安装方法：
pm istall turf
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