## NAME

m.proj - Calculates conversion coordinates for geographic positions.
(GRASS Map Development Program)

## SYNOPSIS

m.proj
m.proj help

## DESCRIPTION

This program allows a user to interactively: convert coordinates from one projection to another

It allows a user to do all of the above:
  reading from a file, writing to the screen, or
  reading from the keyboard, writing to a file, or
  reading from a file, writing to a file,

Note: The program does not transform GRASS files, it is designed to determine coordinate values on an individual position.

The map projections currently supported are listed in etc/projections file

Each of the above projections (with the exception of State Plane) can be computed with the spheroids listed in etc/ellipse.table file

## INPUT FILE FORMAT

When reading from a file of LATITUDE/LONGITUDE data the file will contain three (2) columns of information:
  the first column - latitude - in degrees minutes seconds,
  the second column - longitude - in degrees minutes seconds,

For example:

    	+40 36 31.4563	-87 2 7.8193
    	40n 36 31.4563	87w 2 7.8193

When reading from a file of PROJECTION COORDINATES data the file will contain three (2) columns of information:
  the first column - easting - ground coordinates
  the second column - northing - ground coordinates

For example:

     	 500000.00	4496918.64
    	-424489.11	1908736.13

Note: NO column headings are required, just the numbers.

## SEE ALSO

r.proj, r.proj, s.proj, v.proj

## AUTHORS

Irina Kosinovsky, US Army CERL
R.L. Glenn, USDA, SCS, NHQ-CGIS
Updated to PROJ 4 by Morten Hulden morten@ngb.se

Last changed: $Date: 2002/01/25 05:45:33 $