I'm trying to create polygons associate to given .csv files. On the polygon I would have to be able to read the coordinates x, y (AND Z) because I need to interpolate points and work with them. I know this can be done OpenJUMP, because I've been doing it for a while, but I've not been able to find how to do it in QGIS. Does anyone know how to do it?
ps. I've tried archeoCAD, but it doesn't fit my needs because it creates polygons as a single unit, without the information of the points on the chart, and I'm trying with CADtools, but I'm not really being able to figure it out.
My csv contains vertices, and the rows contain (comma separated, without header, nor any space) 1 = coordinate x, 2 = y, 3 = z, 4 = string, 5 = string (row 4 is a common field). I do know how to create .csv files, and how to create a polygon out of the resulting points. The problem is that I'd need that polygon to include the x,y and z coordinates on the same layer... I've tried several options, but I'm starting to think maybe this is not possible in QGIS?