Thanks for all the help ! I finished the trainstation model today and now I'm starting to build the stuff around
Is anyone kind enough to convert those to .3DM ? I only need the curves and the buildings, I will open them in rhino and generate the terrain with the patch tool (maybe before I'll clean all the lines)
Then I will manually place the buildings on the ground :D Fun part (could do it with grasshopper)
I found a video tutorial about the patch tool it seems to work great if curves are clean and if you first do an extract points.