SEO properties lost

[Anonymous]

Seems like I'm having a problem that I shouldn't be. I've done a number of SEO operations trying to subtract a slab from a thickened ground plane and it worked wonderfully... for a while. However, after going to the section view, every once in a while I notice that it looses the info.

I'm having a similar problem where one of the foundation walls is not subtracting from the plane, and I end up having 2 fill patterns one on top of the other.

Anybody see this before and know of a solution or workaround?

[lapishawaii]

I have been working extensively with SEO and have not had any problems. However sometimes it appears that an object has been selected but I realize later that I had selected an overlaying object. Another possible cause of your problems could be that the operator or target have been moved or accidentally deleted.

[KeesW]

I've not looked at the list for a while.

What is 'SEO"?

[Daniel Lindahl]

Sergio wrote:
Seems like I'm having a problem that I shouldn't be. I've done a number of SEO operations trying to subtract a slab from a thickened ground plane and it worked wonderfully... for a while. However, after going to the section view, every once in a while I notice that it looses the info.
.....
Anybody see this before and know of a solution or workaround?

I have had the same problem a few times. It seems to me that if I have footings/slab edge thickenings cutting a site mesh using subtraction with upward extrusion, the basement floor slab edges coincide with this other cut and the slab does not register as a valid operator element since the slab edges are on the line already cut. If the footings/slab edge thickenings cut the mesh using subtraction only, the Slab cut seems to take.

I am not sure if this is what causes the erratic behaviour, but it made some kind of sense to me at the time.

[Anonymous]

I have had the same type of problem where one the SEO would work fine and then other days it would revert back. I had roofs to form a ramp and my main basement slab, the weird thing was some of the ramp roofs would work and others would not.
I ended up cutting a hole in the site mesh, but isn't really the look on my sections I wanted.

on another note:
my project has .pln modules of indiviual apartments inserted into an overall structure model.
I found that trim to roof did not trim the module walls, but doing a SEO using my roofs worked great ( so far ).