What I want is basically stuff like this:

Replacing various drawn circles such as radar and weapons range.
However I want mine to have a faint grid pattern "filling":

That's just a rough sketch; I want hexagonal grid pattern, not square.
What's worse is I'd like them to overlap nicely, either merging or cancelling each other out or whathaveyou, particularly since it uses semi-transparency and several overlapping might lead to hideousness. But is this even possible to do in a way that doesn't look horrendous when two grids overlap?