topic Re: Layer intersection groups in Project data & BIM

Layer intersection groups

KeesW — Tue, 30 May 2023 11:00:52 GMT

Is there any reason why Archicad has choosen to not intersect properly for hidden and visible layers? I would have thought that by hiding a layer, a user is saying that he doesn't want it to show, nor would he want an invisible layer to create breaks in elements on visible layers.

Can anyone give me a contrary logic?

KeesW

Re: Layer intersection groups

Anonymous — Mon, 07 Aug 2006 00:59:25 GMT

The Intersection in Combos "Goodie" is just what you need. First setup all of your layer combinations as you need them and then run this add-on. It will adjust the intersection priority so that hidden layers do not cleanup with visible ones.

http://www.graphisoft.com/support/archicad/downloads/goodies10/USA.html

Re: Layer intersection groups

Anonymous — Mon, 07 Aug 2006 01:03:44 GMT

KeesW wrote:
Is there any reason why Archicad has choosen to not intersect properly for hidden and visible layers? I would have thought that by hiding a layer, a user is saying that he doesn't want it to show, nor would he want an invisible layer to create breaks in elements on visible layers.

Can anyone give me a contrary logic?

Yes.

Intersection by showing/hiding layers was how it worked (mostly anyway - but I won't go into that) prior to version 8. This proved to be inadequate back then and would be even more so now with more complex intersection priorities in composites and the addition of profiled walls. The layer based priorities may not be the best solution in the long run but it provides much more detailed control than the old method. To combine the two would multiply the complexity of the wall interactions beyond the point that I would care to deal with it.

If you want a layer not to intersect when it is hidden just change its priority in that layer combination.

Re: Layer intersection groups

KeesW — Mon, 07 Aug 2006 02:06:06 GMT

Thanks Eric and Matthew. I'll load that goodies tool.

Doesn't answer my question about the logic, though. Surely hiding layers should also, by default, ensure that these don't interfere with visible layers.

KeesW