[GRASS-user] Create outer line of raster

[Helmut Kudrnovsky]

>My question is how to create such an outer line. I can of course draw it
myself using QGis or >MapWindow but I'd prefer to let it calculated.
>Can GRASS do this? If so which command do I need.

(1) gdaltindex - builds a shapefile as a raster tileindex
(http://www.gdal.org/gdaltindex.html)

or

(2) g.region rast=yourrast
      v.in.region - Creates a vector polygon from the current region extent. 
     (http://grass.osgeo.org/grass64/manuals/v.in.region.html)

HTH



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best regards
Helmut
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