Dropping column bases to mesh below

[Conrado Dominguez]

Greetings to allin this new year

I have many, many,many columns, previously set on top of of flat slab that has now changed to a mesh,with slopes going in several directions.

Dropping all the oolumns to the lowest mesh elevation and then performing a collective "substraction with downwards extrusion" will work, however,I was wondering if there is an equally collective way to have the columns selected and then "gravitate" to the mesh.

Also, what effect have the intensive use of Boolean Ops in the size of a file?

Conrado

[Laszlo Nagy]

Conrado wrote:
Greetings to allin this new year

I have many, many,many columns, previously set on top of of flat slab that has now changed to a mesh,with slopes going in several directions.

Dropping all the oolumns to the lowest mesh elevation and then performing a collective "substraction with downwards extrusion" will work, however,I was wondering if there is an equally collective way to have the columns selected and then "gravitate" to the mesh.

Also, what effect have the intensive use of Boolean Ops in the size of a file?

Conrado

Unfortunately, Gravity works only when placing stuff, but does not when moving/modifying it. This would make a great wish. If you make the wish I promise to vote 'essential'.

I am sure storing SEO relation and operations takes memory but I would not think it takes too much.
I really do not know the limitations of SEO as far as number of operation performed is concerned. I think cutting a couple of dozen Columns out of a Mesh should not cause any problems.

[Conrado Dominguez]

Thanks Laszlo.

I will post this as a wish. However, for a really powerfull function, it will be great if we have the columns Trim top or bottom to slabs and mesh, the same way they now trim to a roof. I allways use a flat roof instead of a slab, to take advantage of the Trim to foof function.

Conrado

[Anonymous]

Conrado, you can transform the mesh into a roof and then Trim to roof all the colunms! You'll need the "Mesh to roof" add-on which is a Goodie.

[Conrado Dominguez]

Conrado, you can transform the mesh into a roof and then Trim to roof all the colunms! You'll need the "Mesh to roof" add-on which is a Goodie.
_________________
Kliment Ivanov

Hmm. No Goodies folder in AC 12. I'll search my previous versions and try it.

Thanks for the tip.

Conrado

[Karl Ottenstein]

Conrado wrote:
Hmm. No Goodies folder in AC 12.

Goodies are a download for all recent versions. Go to your Help menu to find the download page.

Cheers,
karl

[Anonymous]

Conrado wrote:
Also, what effect have the intensive use of Boolean Ops in the size of a file?

There is no appreciable effect on file size as far as I know, but there can be significant effects on 3D performance. I have found SEOs to be pretty robust and use them quite extensively. The main things to watch for are:

1. Don't make reciprocal relationships. An example would be to intersect a roadway slab with a site model and then subtract the result from the site. Better to make a copy of the site to work as a hidden operator.

2. Don't involve parts that don't need to be in the operations. For example, subtracting light fixtures from ceiling slabs should be done room by room (one reason I really want a proper ceiling tool) rather than by selecting all the fixtures and subtracting them from all the ceilings.

In your case, unless you have thousands of columns (or hundreds of complex ones) the performance is probably not much of an issue as long as you have a fairly modern machine.

[Laszlo Nagy]

Matthew wrote:
2. Don't involve parts that don't need to be in the operations. For example, subtracting light fixtures from ceiling slabs should be done room by room (one reason I really want a proper ceiling tool) rather than by selecting all the fixtures and subtracting them from all the ceilings.

I created a wish based on this. Would be nice if the SEO relationship was created only between physically intersection light fixture-slab pair. This way the whole thing could be done in one step.

http://archicad-talk.graphisoft.com/viewtopic.php?p=137905#137905

[Anonymous]

The only problem that I see with the utilization of SEO in this kind of situation is that quantities are compromised...
Or not?...

[Link]

Braza wrote:
The only problem that I see with the utilization of SEO in this kind of situation is that quantities are compromised...
Or not?...

I would say not - for columns at least. Element Information still lists the trimmed volume and a schedule can list the (net) volume.

Cheers,
Link.