[Flightgear-devel] Is there a property that gest the distance between an object and the point of view?

[Roberto I. <ro...@gm...>]

I have a 3d object and I'd like to use a property out of the tree which 
gets me the distance between the point of view and the object itself, in 
order to apply an animation to that. Is there something like that available?

   Roberto