Check if position is near a tree?

[galzohar 31]

I want to spawn a mortar in a random position, but of course don't want to spawn it near a tall object like a tree (or building, but checking for buildings is easy). Any reasonably effective way to check for that, since trees don't exactly have a class name?

[twirly 11]

This might help you.... http://community.bistudio.com/wiki/isFlatEmpty