I work with QGIS, v. 2.0.1. I have a point layer in which I have structures that could be represented as lines or polygons, but at the moment they are represented as a group of points. I know I can create new layers with different geometry but if I do this, I don't have the attribute table of the original point layer attached to the new line/polygon layer. And if I copy the point layer, I have the attribute table but it's not the right geometry. Can I change the geometry afterwards?
I could do a table join, right? But I don't have a common attribute and the table join is not permanent is it?
I tried the "PointstoPaths" Plugin, but it's not what I'm looking for. I also found the "Points2One" Plugin which seems perfect for my problem, but somehow it doesn't work (a shapefile is created but I can't "see" anything in the map).
That's how the map looks: for lines:
and for polygons:
I have about 800 points and the attributes show name of the place, measurements, date and much more.