I have a vector layer of points. Can I get an output from a rasterlayer which contains DTM-values (height) determined by my points placement?
@WhiteboxDev mentions two scripts. There is a third which may be best in your situation and that it Point Sampling Tool. This has been available at least since QGIS 1.8 and works very well. You can even sample simultaneously across many rasters and even vector polygons to get all the values from various layers at each point. Load it via
Plugins->Manage and Install Plugins.