topic Boolean Ghosts in Modeling

Boolean Ghosts

Paul King — Tue, 23 May 2023 15:30:36 GMT

Hi - I have certian areas in a large model that are haunted!

Whatever new wall I place in these areas has a boolean subtraction done to it, subtracting another object that does not exist on any layer or on any story.

How do I locate & delete these phantom boolean operators, and why would they interact with any walls placed on these locations - I have not defined these new walls as targets in any Boolean operation.

Is it possible to have negative or ":antimatter" objects that are only revealed when coinciding with a positive element?
- Looks like that is what I have here!

Spooky!

Re: Boolean Ghosts

Karl Ottenstein — Wed, 26 Nov 2003 01:36:21 GMT

Post a screen shot for us, perhaps?

Are the 'subtractions' rectangular and about the thickness of a wall? If so, the answer is easy - layer intersection priorities. If not, show us a gif capture to send to ghostbusters! 😉

Karl

Re: Boolean Ghosts

Paul King — Wed, 26 Nov 2003 02:10:27 GMT

Hi - answer was that I was not as thorough in checking as I thought ...No boolean involved.
- I had an early assemblage of small columns & beam objects stuck on a GDL Construction layer which is always turned off - but these were still interacting with walls coincedent in space - atcually turning them into swiss cheese!

Why switched off objects should interact this way I don't know - do intersection priorities apply to this situation?

Cheers

Paul