Hi Arthur,

zero is not the same as null. Zero is a perfectly valid (and rather common) number, whereas a null is a lack of a number.

If you want to remove specific values from a tree, you should create a cull pattern that is FALSE for those values and TRUE for everything else. In this particular case it should be easy, because when you feed ZERO into a boolean parameter it is automatically converted to FALSE, and anything else is converted to TRUE.

Oh wait! That's not what you meant. You want to remove empty branches from a structure. You have to use the Clean component for this and make sure you set the [E] input to True:

--
David Rutten
david@mcneel.com
Poprad, Slovakia

David

I am trying to do this:

"If you want to remove specific values from a tree, you should create a cull pattern that is FALSE for those values and TRUE for everything else. In this particular case it should be easy, because when you feed ZERO into a boolean parameter it is automatically converted to FALSE, and anything else is converted to TRUE."

but I am not sure how to feed the "P" value for the cull pattern.

Should I feed it with a expresion?

Thanks!