Proj4js

Proj4js is a JavaScript library that provides methods for coordinate transformations between map projections and longitude/latitude, including datum transformations, in a web client.

Articles about Proj4js

New release of Proj4js v1.0.2

A new release of the Proj4js JavaScript Coordinate System support library is now available. It is primarily a bug fix release but also includes two new important functional improvements: WKT parsing: Proj4js can now parse Well-Known-Text (WKT) versions of the … Continued

Proj4js v1.0.0 Released

As mentioned on the MetaCRS list earlier today by Mike Adair: I’m please to announce that the final v1.0.0 release of Proj4js is now available. Proj4js is a JavaScript library to transform point coordinates from one coordinate system to another, … Continued

Proj4js update

Just to note a couple of updates for the Proj4js project: 1. support was added for Lambert Azimuthal Equal Area projection (proj=laea, ported from PROJ.4) and Lambert Cylindrical Equal Area projection (proj=cea, thanks to R. Marsden from Winwaed software) 2. … Continued