prj2epsg

Node.js module for converting .prj files and projcs / geogcs strings to EPSG codes

• Install

npm i prj2epsg

• From .prj file

const prj2epsg = require('prj2epsg');
const fs = require('fs');

fs.readFile('./myproj.prj', (err, data) => {
    if(!err) prj2epsg.fromPRJ(data);
});

• From GEOGCS / PROJCS string

const prj2epsg = require('prj2epsg');
let prj = 'GEOGCS[\"GCS_WGS_1984\",DATUM[\"WGS_1984\",SPHEROID[\"WGS_84\",6378137,298.257223563]],PRIMEM[\"Greenwich\",0],UNIT[\"Degree\",0.017453292519943295]]';

prj2epsg.fromPRJ(prj) // 4326

• Methods

| Method | Arguments | Description | | ----------- | ----------- | ----------- | | get | projection (String, File), type ('prj', 'epsg') | returns full data object | | fromPRJ | projection (String, File) | returns epsg code without prefix | | fromEPSG | projection (String, File) | returns prj projcs / geogcs string |