m.geo GRASS Reference Manual m.geo NAME m.geo - Calculates conversion coordinates for geographic positions. (SCS GRASS Map Development Program) SYNOPSIS m.geo m.geo help DESCRIPTION This program allows a user to interactively: convert projection coordinates Northings and Eastings to Latitude and Longitude values, or allows a user to interactively: convert Latitude and Longitude values to projection coordinate Northings and Eastings. 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. Several map projections are currently supported: stp - State Plane, for all CONUS, Alaska, Hawaii, Puerto Rico, Guam, Virgin Islands, American Samoa, Northern Mariana Islands, Palau, and U.S. Minor Outlying Islands F I F I F F F I F I I I I I F I I I I 6 m 1 > l o I I F I I F I F I F I F I I I I I I I I I I F I I I F I I F I I I I F I I I I I I 2 m 6 > l o I I I I F F F F I F Each of the above projections (with the exception of State Plane) can be computed with the following spheroids: 3 ) 6 0 4 ) 1 6 . 0 h ) 2 0 y t 8 7 a k 6 2 m INPUT FILE FORMAT When reading from a file of LATITUDE/LONGITUDE data the file will contain three (3) columns of information: the first column - latitude - in degrees minutes seconds, the second column - longitude - in degrees minutes seconds, the third column - zone - zero(0) if not required. For example: +40 36 31.4563 -87 2 7.8193 16 40n 36 31.4563 87w 2 7.8193 16 GRASS 5.0beta6 GRASS Development Team 3 m.geo GRASS Reference Manual m.geo When reading from a file of PROJECTION COORDINATES data the file will contain three (3) columns of information: the first column - easting - ground coordinates the second column - northing - ground coordinates the third column - zone - zero(0) if not required. For example: 500000.00 4496918.64 16 <- utm -424489.11 1908736.13 0 <- lambert Note: NO column headings are required, just the numbers. SEE ALSO Mapgen, proj AUTHOR R.L. Glenn, USDA, SCS, NHQ-CGIS NOTICE This program is part of the contrib section of the GRASS distribution. As such, it is externally contributed code that has not been examined or tested by the Office of GRASS Integration. 4 GRASS Development Team GRASS 5.0beta6