Geografic-Information-System/raster/r.latlong/r.latlong.html

<h2>DESCRIPTION</h2>

<em>r.latlong</em> creates a latitude (degree decimal) map, or longitude
if the -l flag is used, from any map in any projection using PROJ.4 library. 
This is an input to <em>r.sun</em> and <em>i.evapo.potrad</em>.

<h2>NOTES</h2>

The PROJ.4 <a href="http://trac.osgeo.org/proj/">website</a>.

<h2>TODO</h2>
Datum transform is not implemented, the same datum is taken as output.

<h2>EXAMPLE</h2>

<div class="code"><pre>
g.region raster=elevation -p
r.latlong input=elevation output=latitude
</pre></div>

<h2>SEE ALSO</h2>

<em>
<a href="r.sun.html">r.sun</a>,
<a href="r.sunhours.html">r.sunhours</a>
</em>

<h2>AUTHORS</h2>

Yann Chemin, International Rice Research Institute, The Philippines

<p><i>Last changed: $Date$</i>