@node-gis/proj4geojson

@node-gis/proj4geojson

Easily convert coordinate system for GIS vector data in GeoJSON format by Proj.4 JS

Install

//npm
npm install @node-gis/proj4geojson

//yarn
yarn add @node-gis/proj4geojson

Quick Start.

    // WGS84 to EPSG:3857
    const conv_geojson = fromWGS84(objGeoJson, "EPSG:3857");

    // EPSG:3857 to  WGS84
    const conv_geojson = toWGS84(objGeoJson, "EPSG:3857");

Custom Coordinates Reference System.

you can easily to use custom CRS with params from epsg.io same like proj4

const epsg_5179 = '+ proj=tmerc +lat_0=38 + lon_0=127.5 + k=0.9996 + x_0=1000000 + y_0=2000000 + ellps=GRS80 + towgs84=0, 0, 0, 0, 0, 0, 0 + units=m + no_defs'
const geojson4326 = toWGS84(testGeojson, epsg_5179);

LICENSE

Licensed MIT