I'm a new qGis user (just started yesterday) and I'm trying to find a solution to a problem. I need to generate a 3D polygon starting from a list of points located in space, with X and Y coordinates and elevation value (these points are generated by a telemeter, used to map a landslide areas like mountains and hills).
I tried the Contour tool but it works only when I have just 4 points on my list (so that it says 2x2 grid). When I add more points it says "No regular grid" and clicking OK crashes qGis. I also tried some Vector tools but all I can get is 2D polygons or a polygon with fixed altitude, not a polygon where every vertex has its own altitude.
Two images to explain the concept:
What it should look like when having a lot of points:
Is there a way to do it on QGIS?