Checking if object is on ground level?

[Guest]

I have a trigger that is grouped to an object so that when the object is in the trigger radius, the trigger will fire. Now, does anyone know how I would go about making the trigger fire only if the object is on the ground?

Basically the object is being transported by a chopper and I only want the trigger to activate once the object has been dropped from the chopper and is on the ground.

[Ghost 40]

Make sure the trigger is set to activate by anybody or a specific side. Then in the onactivation of the trigger put something as follows

this and ((getpos (thislist select 0)) select 2 < 1)

[Guest]

Thanks, that worked great.