A small transform stream to convert latitude and longtitude coordinates into Cartesian coordinates
npm install geo-to-cartesian
var geoToCart = require('geo-to-cartesian');
var geoCoordTextStream = fs.createReadStream('data.txt');
geo.pipe(geoToCart).pipe(outputStream);
The expected format of the geographic coordinates stream is an array,
[lat, lon]
Cartesian coordinate bjects are output in the form:
[x, y, z]