[GRASS-user] Help with a projection

Hamish hamish_nospam at yahoo.com
Mon Aug 27 00:26:59 EDT 2007

Yamil Ortega wrote:
> Hi everybody. I´m really new with the projections and grass, and I need to
>  do this example.
>  http://grass.itc.it/spearfish/php_grass_earthquakes.php
>  I've been able to do this:
>  http://remotesensingjapan.blogspot.com/2007/08/por-fin.html
>  As you can see, the red points are in the lower left corner. This is
>  because the projection is in X,Y mode.
>  However, only in X,Y projection I've been able to import the world image
>  (http://veimages.gsfc.nasa.gov/7105/world.topo.bathy.200406.3x5400x2700.jpg)
>  And a haven´t be able to do the projection in Lat-Long format, import the
>  map(specially this), and apply the sh file that create the red points.

The r.region module will reset the map bounds: import the world map into
the lat/lon location (where the earthquake data is) then run r.region to
set the world map raster's extent to +-90 +-180.

5400x2700 image size gives 15 degrees per cell, check the resolution with


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