topic Knowing if a story is empty? in Archicad C++ API

Knowing if a story is empty?

Anonymous — Wed, 15 Sep 2021 10:35:35 GMT

Hello,

I want to know if a specific floor has anything in it.
In other words, a function which gives the number of elements (of any kind) in a specific floor would be a great solution for me.

Thanks

Re: Knowing if a story is empty?

mikas — Wed, 01 Apr 2020 17:42:11 GMT

Ok, this was in a developer forum, so maybe I answered for a very different thing you wanted to know of.

All layers open. Check renovation filter to show all stages of it.
Select arrow tool. Select everything (ctrl/cmd+A)
Modify Selected (ctrl/cmd+option+T)

A dialog will show you all (selected) elements by type and count.

Re: Knowing if a story is empty?

Ralph Wessel — Wed, 01 Apr 2020 20:50:46 GMT

You could call ACAPI_Element_GetElemList with the API_ElemFilterFlags parameter set to APIFilt_OnActFloor. That will extract a list of elements on the active floor - it empty, you know there aren't any.

Re: Knowing if a story is empty?

Anonymous — Thu, 02 Apr 2020 10:14:43 GMT

Ralph wrote:
You could call ACAPI_Element_GetElemList with the API_ElemFilterFlags parameter set to APIFilt_OnActFloor. That will extract a list of elements on the active floor - it empty, you know there aren't any.

that’s an option, but I don’t want to change the active floor every time. My goal is to make this check for every floor and then delete the layouts of floors without elements in it.

Re: Knowing if a story is empty?

Ralph Wessel — Thu, 02 Apr 2020 10:46:22 GMT

You can restore the active floor after cycling through them all.

I think the only other alternative is iterating through all the elements and checking which floor they're on. You can use ACAPI_Element_GetHeader to avoid loading the whole element.