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geotransform

v1.0.17

Published

GIS坐标转换工具

Downloads

9

Readme

GIS坐标转换工具

该工具引用 gcoord https://www.npmjs.com/package/gcoord 和 proj4库, 实现坐标任意转换。

使用方法: npm安装:npm install geotransform --save

  import GeoTransform from "geotransform";
  let gt = new GeoTransform();
  let coords = [113.620605, 34.748383];
  let transCoords = gt.transform("WGS84", "EPSG:4547", coords);
  let transCoords1 = gt.transform("GCJ02", "EPSG:4547", coords);
  let transCoords2 = gt.transform("GCJ02", "WGS84", coords);
  let transCoords3 = gt.transform("EPSG:4326", "EPSG:4547", coords);
  let transCoords4 = gt.transform("EPSG:4326", "GCJ02", coords);

/**

  • 坐标转换方法 gt.transform(fromSR, toSR, coords);
  • @param {*} fromSR 转换前的坐标系
  • @param {*} toSR 转换后的坐标系
  • @param {*} coordinates 坐标值[x, y] */

支持EPSG编码坐标系转换,与非EPSG互转

非EPSG支持以下互转

   "GCJ02"    -> "高德坐标"
   "BD09"     -> "百度坐标"
   "BD09MC"   -> "百度墨卡托坐标"
   "EPSG3857" -> "墨卡托坐标"
   "WGS84"    -> "84地理坐标"