[GRASS-user] Re: setting initial region boundaries / info from spatialreference.org

Hermann Peifer peifer at gmx.eu
Sat Jan 14 08:53:16 EST 2012


On 10/01/2012 23:31, Tim Michelsen wrote:
>
> The default values would be the maximum extended defined by the
> projection. With ETRS, for example, we would use:
>
> Projected Bounds: 2426378.0132, 1528101.2618, 6293974.6215, 5446513.5222
> see: http://spatialreference.org/ref/epsg/3035/
>

This is rather a side-remark than an answer to your actual questions.

a) the "maximum extent" of EPSG:3035 is not limited by the LAEA 
projection, but by the Datum of the CRS (ETRS89) which is defined to be 
"fixed to the stable part of the Eurasian continental plate.."

b) For checking EPSG codes, you might want to visit 
http://epsg-registry.org/ rather than http://spatialreference.org/

c) At epsg-registry.org, you will find this bounding box for ETRS89's 
"Area of Use":

Bounding Box Boundary  Value (Decimal Degrees)
West Bound Longitude   -16.10
East Bound Longitude    39.64
North Bound Latitude    84.16
South Bound Latitude    32.88

Hope this helps, Hermann


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