[Qgis-user] Shaded Relief: Memory Error on Windows OS

[Gerardo Jimenez]

Yes, Gdaltools includes a  DEM (terrain models) option. You can find it at raster/dem. When you are working with the hillshading option remember to set th proper scale factor. If you are working with lat lon models 
and your elevation is in meters , you have to set the scale( ratio of..) to 111120. If your coordinates units and elevations have the same measuring unit, in meters, scale factor is 1. 

I prefer to us e Gdaltools because it can handle really large data sets with out a problem. For instance recentlye I produced a model of 2 degrees by 2 degrees and it did was not a problem for Qgis. I tried a doing just a 1 by 2 degrees with  shaded relief plugin and.. your memory error appears.

Hope it helps

Gerardo Jiménez Delgado
Instituto de Investigaciones Antropológicas
Universidad Nacional Autónoma de México
Ciudad Universitaria s/n
Coyoacan 04510
Mexico City
Mexico

56 22 95 16

> Date: Sun, 23 Oct 2011 12:06:21 +0200
> From: alobolistas at gmail.com
> To: qgis-user at lists.osgeo.org; qgis-developer at lists.osgeo.org
> CC: andreasplesch at netscape.net
> Subject: [Qgis-user] Shaded Relief: Memory Error on Windows OS
> 
> Students report a Memory Error at running plugin Shaded Relief on
> Windows machines
> with qgis 1.7.1.
> Is there any solution to this problem?
> 
> See picture in
> https://sites.google.com/site/filestemp2/home/shreliefproblem1.png
> 
> Agus
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