Tutorials

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QGIS Labs

QGIS Tutorial Labs http://www.plantsciences.ucdavis.edu/plant/qgislabs.htm
Sometimes I create hillshades using the QGIS hillshade plugin and then overlay the original DEM over it.

Relief vizualisation

http://linfiniti.com/2010/12/a-workflow-for-creating-beautiful-relief-shaded-dems-using-gdal/
http://linfiniti.com/2010/12/3d-visualisation-and-dem-creation-in-qgis-with-the-grass-plugin/

3d visualisation and DEM creation in QGIS with the GRASS plugin - Linfiniti Geo Blog

A note from Sam in the Linfiniti team: The last two weeks of FOSS GIS training courses (posted about here and here ) have been impressive. High-five to the trainers, Tim and Gavin, for their hard work!

The Geospatial Desktop » Creating a Standalone GIS Application

http://desktopgisbook.com/2009/02/creating_a_standalone_gis_application_1/ In this example we are going to begin to build a standalone GIS application using Python and the QGIS libraries. We’ll start simple by creating an application to load and display a shapefile.