I'm new to Blender and am experimenting using it to design a landscaping project. I have a DXF file with contour lines for the land and have managed to import these into Blender. My aim is to have a full surface that reflects the site, and where I can start manipulating the slope and adding shapes onto it.
I now have a series of lines with heights, but that are not connected to each other and don't have an edge around them. After a long time trying to just join the edges using a combination of selecting them and choosing "Connect vertex path" or "Merge vertices > at center" (when connect didn't work) I thought maybe I'd be able to create a plane from it. However this only created small patches of planes so I'm guessing I've done something wrong. I was thinking as a next option I could just create a plane of the same size underneath it and manually drag each point up to match a point on one of the contour lines. This would probably take quite a while - is there any better option out there?