Transform coordinates from one coordinate system to another.
npm install transform-coordinatesTransform coordinates from one coordinate system to another. Just a wrapper around proj4 and epsg-index.
!ISC-licensed
!minimum Node.js version
``shell`
npm install transform-coordinates
proj4 is a battle-proven tool for converting from one any coordinate system into any other. You need to specify a long and complicated string for both system though, to tell proj4 how to convert.
epsg.io has an index of those strings. epsg-index is an offline copy of them.
This module glues together proj4 and epsg-index and returns a clean API.
`js
const transformation = require('transform-coordinates')
const transform = transformation('EPSG:4326', '3068') // WGS 84 to Soldner Berlin
console.error(transform.forward({x: 13.4105, y: 52.5034}))
// {
// x: 25405.407133664165,
// y: 19607.826100560924,
// z: -40.94089552294463
// }
`
transformation(from, to) returns a proj4 object with forward() and inverse().
- projections – Collection of (stereographic) map/coordinate projections.
- proj4 – library to transform coordinates from one coordinate system to another
- epsg-index – A machine-readable index of all EPSG coordinate systems.
If you have a question or have difficulties using transform-coordinates`, please double-check your code and setup first. If you think you have found a bug or want to propose a feature, refer to the issues page.