Version 10 (modified by madair, 5 years ago)

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Welcome to Proj4js

Proj4js is a JavaScript?! library to transform point coordinates from one coordinate system to another, including datum transformations.

This library is a port of both the  Proj.4 and  GCTCP C libraries to JavaScript?!. Enabling these transformations in the browser allows geographic data stored in different projections to be combined in browser-based web mapping applications.

Proj4js is a part of the  MetaCRS group of projects.

Starting Points