Hi,
I'm having a irritating problem which I haven't run into before. I've drawn a set of roads which makes up one big surface. Within this road system there's an area, completely surrounded by the roads which should be empty. I just want to select that area and delete it. But even though my lines are planar and connected they don't seem to seperate this area from the rest of the face.
If I delete and redraw one of the lines between the road and the innermost area I get a surface only on the innermost area and not on the actual roads. That would indicate that there's a broken connection on the outer lines. However if I delete and redraw one of the outer lines it creates on face which covers all of the model, roads and inner area.
Does anyone recognize this problem and know of a way to solve it?

I should add that I created this model by using the drape tool. Maybe that is what caused the problem.