PROJ.4 4.7.0

Program proj  is a standard Unix filter function which converts geographic
longitude and latitude coordinates into cartesian coordinates, !
(x, y), by means of a wide variety of cartographic projection functions. For many
of the projection functions the inverse conversion, (x, y) !  can also be performed.
The principle purpose of this user’s manual is to provide complete details
of the technical usage and execution of program proj, supplemented with examples
and some practical applications. However, cartographic characteristics of the
projections are given minimal coverage in this manual and the reader should refer
to Map Projections—A Working Manual (Snyder, 1987) and An Album of Map
Projections (Snyder and Voxland, 1989) for more complete discussions. Program
proj supplements these publications in terms of computational applications in the
Unix environment.
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History updates (Complete changelogs since the listing on this site)

4.7.0 [06-05-11]

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Predicted future versions and notices:

The constantly monitors the update of all programs, including information from the PROJ.4 4.7.1 changelog file, however sometimes it can happen that data are not complete or are outdated.We assume that author continue's to develop 4.8.0 version with further advanced features, and soon you will be informed. Equally important 5.0.0 upgrades of the program we will continue to monitor. Full PROJ.4 description has been compared with the overall software database and our algorithm has found the following applications (are showed below).