topic Re: Can't get the two ids of the column element in Archicad C++ API

Can't get the two ids of the column element

WalterWhite — Tue, 01 Oct 2024 08:47:00 GMT

Can't get the two ids of the column element, only the GUID

Re: Can't get the two ids of the column elemen

Barry Kelly — Tue, 01 Oct 2024 08:35:07 GMT

What 2 IDs - Element ID and GUID?

Where are you trying to get this information?

Autotext labels, GDL, API (add-ons), schedules?

Let me know and I will move this post to the appropriate forum.

Barry.

Re: Can't get the two ids of the column elemen

WalterWhite — Tue, 01 Oct 2024 08:38:37 GMT

C++ API(add-ons)

Re: Can't get the two ids of the column elemen

WalterWhite — Tue, 01 Oct 2024 08:48:33 GMT

Can't get the Element ID

Re: Can't get the two ids of the column element

BerndSchwarzenbacher — Tue, 01 Oct 2024 09:06:03 GMT

Element ID's are specific properties.

Try something like this:

const API_Guid ELEMID_PROP_GUID = APIGuidFromString ("7E221F33-829B-4FBC-A670-E74DABCE6289"); API_Property prop; GSErrCode err = ACAPI_Element_GetPropertyValue (elementGuid, ELEMID_PROP_GUID, prop); if (err != NoError) { return err; } ACAPI_WriteReport("Element ID: " + prop.value.singleVariant.variant.uniStringValue, true);

Re: Can't get the two ids of the column element

WalterWhite — Tue, 01 Oct 2024 09:24:01 GMT

Thank you, I will try it, but now there is another problem. When adding a column in the scene, I will get two element, I don't know how to get ID separately.

ModelerAPI::Model* m_model; Int32 nElements = m_model->GetElementCount();

Re: Can't get the two ids of the column element

WalterWhite — Tue, 01 Oct 2024 10:04:36 GMT

I find that one element id in the column is GUID, what is the relationship between the other element id and Guid?

Re: Can't get the two ids of the column element

BerndSchwarzenbacher — Tue, 01 Oct 2024 14:02:37 GMT

I haven't used the ModelerAPI yet, but I don't think it helps you in your case (if I understand correctly what you want to do).

Instead check out these two functions and their examples:
ACAPI_Element_Get

ACAPI_Element_GetElemList

GUID is a unique identification number for each element. With Element ID I usually refer to the property which is usually something like "COL - 001".
And on top of that, the Element ID is a built-in property which has it's own GUID. That's also very confusing.

The question really is which information you want exactly. Maybe you can make a screenshot of the information as you see it in the Archicad Window, then we can tell you how to get it with the API.

Re: Can't get the two ids of the column element

WalterWhite — Tue, 01 Oct 2024 17:05:41 GMT

My ultimate goal is to get the model information for columns, such as Polygon, Vertex. These cannot be obtained directly from the Guid.

Re: Can't get the two ids of the column element

WalterWhite — Tue, 01 Oct 2024 17:22:07 GMT

I can only get one Guid for the column through ACAPI_Element_GetElemList.
With m_model->GetElementCount(), I find that the column consists of two elements, and then use GetElemGuid() to find that each of them has a different Guid.
I am currently using notification management ElementEventHandlerProc, when APINotifyElement_New, the column will return one Guid and the other Guid will not return, what is the way to get it?
I think it might not be an Element ID, but a column with two Guids, judging from the interface GetElemGuid().

Re: Can't get the two ids of the column element

BerndSchwarzenbacher — Fri, 04 Oct 2024 13:24:49 GMT

OK I've completely misunderstood you before. Now I don't think you were looking for the Element ID property value. So forget what I said before.

Now to your actual problem: Not sure what the other GUID is for. How many GUIDs do you get when you add no element to the project?

Re: Can't get the two ids of the column element

WalterWhite — Sun, 06 Oct 2024 03:09:01 GMT

I think I can talk about my practical problems from another direction. When I add a column or a beam to a 3D scene, how to directly obtain their geometric information, such as vertices and surfaces?

Re: Can't get the two ids of the column element

BerndSchwarzenbacher — Tue, 08 Oct 2024 09:38:19 GMT

I've used the ModelAccess API before for something similar. It's not very comfortable to use, but worked in my case. Also unfortunately the examples for it are a bit scarce.

I think the ModelerAPI you've used might be the newer iteration of the interface. But I've not used that yet and I'm really not sure about it's application.

Hope that helps.

Re: Can't get the two ids of the column element

WalterWhite — Thu, 10 Oct 2024 07:22:08 GMT

Ok, I will find a suitable solution according to the direction you provided. Thank you very much.