map tile download base on koa and node-canvas
git clone https://github.com/sakitam-gis/tile-spider.git
npm install
npm run lint
npm run build
npm run devopen http://localhost:3456/map/getTile
add Query Parameters
| param | inter | type | more |
|---|---|---|---|
| url | map service url | String |
eg: http://www.google.cn/maps/vt?lyrs=m@189&gl=cn&x={x}&y={y}&z={z} |
| resolution | layer resolution | Number |
eg: 19567.87924100512 |
you can see images folder.