Description

This article is from the Geographic Information Systems FAQ, by Lisa Nyman lnyman@census.gov with numerous contributions by others.

3.9 Is there a package available to convert FROM UTM to latitude/longitude? (Geographic Information Systems)

An on-line service is available at:
http://www.geod.nrcan.gc.ca/html-public/GSDapps/English/gsrug-gtou.html

The Geographic Calculator
Resolution Mapping, Inc., River Road, P.O. Box 718, Newcastle, ME
04553. (207) 563-2311. The GC is a Microsoft Windows application that
enables conversion to-from Lat/Long, State Plane, UTM, Landsat WRS,
user defined coordinate and other systems. It sells for $225. This is
a solution if you don't have something like Arc/Info, in which these
CONVERTsions are standard fare.

Geocart
Terra Data, Inc (Bramblebush,
Croton-on-Hudson, NY 10520) (212 675-2971).
it does map projections; Mac based; $499.

PROJ4
PROJ is a standard Unix filter function which converts geographic longitude
and latitude coordinates into cartesian coordinates, (lambda,phi) -> (x,y),
by means of a wide variety of cartographic projection functions. For many
of the projection functions the inverse conversion, (x,y) -> (lambda,phi),
can also be performed."

The Unix version of the software (buildable with gcc) and
PC-DOS version of the software (both executable & source) are located in
ftp://kai.er.usgs.gov/pub/PROJ.4

This software supports a *very* robust set of coordinate projection systems,
datums, and ellipsoids. This software is especially useful if you have to
convert large batches of coordinates.

GeoConverter ($5.00 shareware)
This software does accurate conversions between
UTM and Long/Lat for Macintosh computers.
ftp://ftp.utexas.edu/pub/mac/da/

 

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• prev: 3.8: What is the Digital Chart of the World (DCW) and how do I get one? (Geographic Information Systems)
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• next: 3.10: Does a file exists of latitude and longitude of US cities?

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