Unable to perform slab solid calculations

[nishida_jp]

I am using it with ArchiCAD27/Win10.
within one slab
Place one column and one beam, with the column protruding from the slab.
In order to reduce the volume of columns and beams within these slabs,
In a solid operation, I specified the target as a slab and the operator as a column and beam, and used subtraction and attributes, but the volume of the slab immediately after did not change.
Columns and beams both have volume, but why doesn't the original slab volume decrease?

[CosminF · Accepted solution]

Hi,

I have replicated your situation, and without SEO, and in my case it displays correctly.
Namely, a 300x300x20cm slab. Has this volume - 1.80 sqm (in element attributes)

If I have a column through it, its conditional volume decreases.

Are you sure you are displaying the correct volume for the slab? Maybe consider taking a look here to better understand the listing parameters:
https://helpcenter.graphisoft.com/user-guide/88970/

[Barry Kelly]

Is this an C++ / API question?

i.e. you can't get the correct result in the programming language.

Or is it just a general Archicad question.

If so - wrong forum and I will move the post.

And there is no need for SEO if the building materials have the correct strengths.

Stronger automatically cuts weaker.

Barry.

[nishida_jp]

Sorry

[nishida_jp]

Thanks.
Get Slab Volume without Solid Operation.