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I would like to make a Hillshade-Model with multicolor "alà IMHOF". That means, I dont want a "usual" gray hillshade, I would like to use grey-blue and grey-violett from different sun directions.

Any idea how I could do that with qgis? Are there any plugins?

Thanks a lot! Martin

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1 Answer 1

You're after elevation coloured, shaded relief? You could start by looking here: http://underdark.wordpress.com/2012/01/19/a-guide-to-beautiful-reliefs-in-qgis/

It's simple to use but doesn't offer much in the way of fine control. The results won't look too much like Imhof I'm afraid :(

Hint: If your DEM is lat/lon then transform it to a projected CRS first.

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I know that tool, but its not what im looking for. The result is too... "organic", its good for digital map production, but not for printed maps. But thanks! –  MAP Apr 27 '12 at 11:18
I didn't realise it was you, MAP! For fine control you can use gdaldem hillshade and gdaldem color-relief which are now in QGIS (with other useful tools), under the Raster menu. gdaldem color-relief is really useful, you can set transparency for the colours as well. I expect you will have seen this: linfiniti.com/2010/12/… hsv_merge works well. –  nhopton Apr 27 '12 at 11:48
I almost forgot, gdaldem can also produce data-rasters for slope and aspect. These can be also be rendered using gdaldem color-relief, with a suitable colour ramp. In case you wanted to add a yellow slope layer to the mix, for example (as suggested by Imhof). –  nhopton Apr 27 '12 at 12:42
Thanks a lot! A lot stuff to experimentate :) –  MAP Apr 28 '12 at 7:43

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