[Qgis-user] Making a vector layer of raster files extent

[Saber Razmjooei]

I guess it's better to be done in GRASS.
A script:
	1- To import dem1 (r.in.gdal or r.im.arc)
	2- set the region to the raster (g.region rast= dem1)
	3- Create a vector out of the region with the same name of the raster
(v.in.region output=dem1)
	4- add a database to the new vector (v.db.addtable map=dem1
columns=name VARDCHAR(20))
	5- update the name column to get the value of dem1 (v.db.update
map=dem1 column=name value=dem1)
	6 - Create a loop to do it for all 95 dems
	7- Merge the vectors
If you use Linux, it is easy to do a bash script to do it all quickly.
Hope that helps
Sab

On Mon, 2011-01-24 at 16:38 +0100, HÅKON BORCH wrote:
> Helo
> I have a catalog of  95 rasters with DEM. Each time I want to use them
> I have to load a lot of them to find the one I need that covers the
> area I am interested in. Is there a way to generate a layer containing
> polygons of the extent of each layer. I want to make this layer to
> easy find which DEM i should load to a project.
> 
> Or is there an other smart way to deal with a lot of heavy raster
> files, without waitng and waiting and waiting for them to render.
> Best
> Håkon Borch
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