geotile-sdk-atlas

geotile-sdk

A tile sdk for Cloud Optimised Geotiff and shapefile ",

Example

var geotile_sdk = require("geotile_sdk");

//设置样式文件路径和mapnik的input plugin
var styleDir=".../style"
var mapnikDir=".../node_modules/mapnik/lib/binding/"
geotile_sdk.setMapnikDir(styleDir,mapnikDir)

//根据json生成栅格的地图样式xml文件
var styleJson_raster = {
  "style":{
    "Type": "Raster"
  },
  "layer":{
    "path":"/luojun/github/geotiff-server/test/data/clip2.rs",
    "SRS":"3857"
  }
}
const style_str_raster= JSON.stringify(styleJson_raster)
geotile_sdk.generateXML(style_str, (err,uuid)=>{ if(!!err)var xml_uuid=uuid })

//根据json生成面要素的地图样式xml文件
var styleJson_polygon = {
  "style":{
    "Type": "Polygon",
    "Color": "black",
    "LineWidth": 1,
    "FillColor": "#bee826"
  },
  "layer":{
    "path":"/luojun/github/geotiff-server/test/data/clip2.rs",
    "SRS":"3857"
  }
}
const style_str_polygon= JSON.stringify(styleJson_polygon)
geotile_sdk.generateXML(style_str_polygon, (err,uuid)=>{ if(!!err)var xml_uuid_polygon=uuid })

//根据json生成线要素的地图样式xml文件
var styleJson_line={
  "style":{
    "Type":"Line",
    "Color":"#bee826", 
    "LineWidth":1
  },
  "layer":{
    "path":"/luojun/github/geotiff-server/test/data/clip2.rs",
    "SRS":"3857"
  }
}
const style_str_line= JSON.stringify(styleJson_line)
geotile_sdk.generateXML(style_str_line, (err,uuid)=>{ if(!!err)var xml_uuid_line=uuid })

//根据json生成点要素的地图样式xml文件
var styleJson_point={
  "style":{
    "Type":"Point", 
  },
  "layer":{
    "path":"/luojun/github/geotiff-server/test/data/clip2.rs",
    "SRS":"3857"
  }
}
const style_str_point= JSON.stringify(styleJson_point)
geotile_sdk.generateXML(style_str_point, (err,uuid)=>{ if(!!err)var xml_uuid_point=uuid })
  
//获取瓦片： 传入参数（瓦片的xyz，数据源路径，数据的空间参考系，结果处理回调函数，地图样式文件的uuid）
geotile_sdk.fetchTile(109195, 51561, 17, xml_uuid_raster, (err,buffer) => {});
geotile_sdk.fetchTile(109195, 51561, 17, xml_uuid_polygon, (err,buffer) => {});
geotile_sdk.fetchTile(109195, 51561, 17, xml_uuid_line, (err,buffer) => {});

}