Last time we had the task to create mountain ranges polygons for the whole world. I prepared a small tutorial referred to that. Maybe you can find something interesting for you. It will show you a model on how to select defined regions, slicing raster, smoothing and also exporting desired features. Enjoy!
3D is soooo cool… Okay let’s be honest: the exciting times of Second Life are gone and the Oculus Rift is still not in sight in the end-user stores. But it is and was always cool to create you own 2.5D (we are using GIS not CAD, you know) visualization and make beautiful graphics for your papers or posters. It was always a big drawback for QGIS that ArcGIS was and is so good with ArcScene. But we’re proud users and we’ll use NVIZ. Let me show you how.
Dear GRASS GIS: Happy birthday! There has been a lot movement in the last decades and you enriched our workflows and our way of spatial thinking. There were books written for you , movies filmed for you and you’ve got your very personal encounter with Star Trek: