[Qgis-user] Re: QGis slope calculation in Photoshop

[Paulo van Breugel]

Using the print composer is a bit cumbersome, but does not need to be 
imprecise. See this short explanation how you can use it to export 
georeferenced images: 
http://pvanb.wordpress.com/2011/09/28/create-wld-file-for-map-image/. 
The other way to do this is 
http://underdark.wordpress.com/2010/11/30/creating-high-resolution-images-using-qgis/. 
On my computer, the second way tends to be more problematic for larger 
images.

Another option is to use GRASS (GRASS toolbox) to calculate slope, and 
for export of the layer as (georeferenced) png or tiff.

Yet another option, which I didn't try, is to convert the geotiff to a 
normal tiff with world file using gdal; see 
http://lists.osgeo.org/pipermail/gdal-dev/2006-May/008929.html



On 04/10/2012 01:57 PM, mnertinger wrote:
> Using an png wouldn't be a problem at all.
> But i have to use the print-composer to get the png,
> because by just exporting the slope as png I get the same
> "mask-like" result in PS, as with the tif.
> And using the print composer to export an image is rather imprecise
> and unpleasing…
>
> I just don‘t get why I cannot export the slope analysis as a tif,
> as I do for example with the shaded relief or any other geotif from QGis.
>
> --
> View this message in context: http://osgeo-org.1560.n6.nabble.com/QGis-slope-calculation-in-Photoshop-tp4742742p4746109.html
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