Dec 1, 2025 · PROJ is a generic coordinate transformation software that transforms geospatial coordinates from one coordinate reference system (CRS) to another. This includes …

Sep 15, 2025 · See Installation for information on how to get pre-built packages of PROJ. Documentation in PDF and zipped HTML can be downloaded using the flyout menu on the left …

2 days ago · The simplest way to install PROJ on Windows is to use the OSGeo4W software distribution. OSGeo4W provides easy access to many popular open source geospatial …

Dec 1, 2025 · Geodetic transformation PROJ can do everything from the most simple projection to very complex transformations across many reference frames.

Dec 1, 2025 · Every projection in PROJ is identified by a shorthand such as merc in the above example. By using the above projection definition as parameters for the command line utility …

Dec 1, 2025 · The main purpose of PROJ is to transform coordinates from one coordinate reference system to another. This can be achieved either with the included command line …

Dec 1, 2025 · PROJ is a generic coordinate transformation software that transforms geospatial coordinates from one coordinate reference system (CRS) to another. This includes …

2 days ago · This section is devoted to the generic parameters that can be used on any projection in the PROJ library. Below is a list of PROJ parameters which can be applied to most …

Dec 1, 2025 · Generally PROJ will accept coordinate reference system descriptions in the form of WKT, WKT2 and PROJ strings. If you are able to describe your desired CRS in either of those …

Dec 1, 2025 · If a proj-string does not contain +type=crs, then it is interpreted as a coordination operation / transformation. If creation of the transformation object fails, the function returns 0 …