topic Re: How to get shape of selection used for 3DFilter after filterd? in Archicad C++ API

How to get shape of selection used for 3DFilter after filterd?

HKM — Tue, 17 Sep 2024 11:10:00 GMT

Re: How to get shape of selection used for 3DFilter after filterd?

HKM — Mon, 04 Mar 2024 02:34:44 GMT

note)
Windows10
Archicad26
API Development Kit 26.3000
Visuial Studio 2019

Re: How to get shape of selection used for 3DFilter after filterd?

Laszlo Nagy — Mon, 04 Mar 2024 23:38:17 GMT

Can you upload a better quality and higher resolution screenshot? It is hard to see what it shows.

Re: How to get shape of selection used for 3DFilter after filterd?

HKM — Wed, 06 Mar 2024 01:14:01 GMT

Made it an attached file.
Please confirm.

Re: How to get shape of selection used for 3DFilter after filterd?

Hiromichi Shinkawa — Fri, 31 May 2024 08:30:39 GMT

Hi,

If you'd like to get the shape of model in 3D window, you can try 3D Manager functions to get the 3D polygon data.

(ex: ACAPI_3D_GetComponent())

You can find Example code in API Kit (3D_Test.c).

HTH

Re: How to get shape of selection used for 3DFilter after filterd?

Ralph Wessel — Fri, 31 May 2024 09:05:01 GMT

It looks like you need the geometry of the element as it appears in the 3D window rather than the geometry of the original element (without cropping). If so, you want to look at the documentation for the ModelAccess API. This provides access to the 3D bodies displayed in the 3D view. The documentation for ACAPI_ModelAccess_GetComponent includes a small code snippet that should help you get started. Once you have the body of the target element, you can extract faces, vertices, surfaces etc for a full 3D description.

Re: How to get shape of selection used for 3DFilter after filterd?

HKM — Wed, 05 Jun 2024 01:16:52 GMT

Thank you for your answer.
But what I want to know is not the shape of the clopped object, but the shape of the clopping.

Re: How to get shape of selection used for 3DFilter after filterd?

Ralph Wessel — Wed, 05 Jun 2024 09:06:28 GMT

Do you want the shape of the 2D marquee the user drew?

Re: How to get shape of selection used for 3DFilter after filterd?

HKM — Wed, 05 Jun 2024 14:59:19 GMT

That's right.
It is the shape of (3) in the image I presented.

Note)
At this point, the selected shape drawn by the user will be erased.

Re: How to get shape of selection used for 3DFilter after filterd?

Ralph Wessel — Wed, 05 Jun 2024 19:59:44 GMT

Use ACAPI_Selection_Get to populate a API_SelectionInfo structure. API_SelectionInfo.marquee will contain the coordinates of the selection polyline

Re: How to get shape of selection used for 3DFilter after filterd?

HKM — Wed, 05 Jun 2024 23:58:03 GMT

As stated in the post,
there is no selection marquee on screen at the time of processing.

Re: How to get shape of selection used for 3DFilter after filterd?

Ralph Wessel — Thu, 06 Jun 2024 08:11:19 GMT

You mean the user has already erased the selection marquee? If so, there's nothing you can do afterward.

If you want to know what the marquee shape was previously, I suggest capturing it when it's created so you still have it even if the user clears it.

Re: How to get shape of selection used for 3DFilter after filterd?

HKM — Thu, 06 Jun 2024 08:40:32 GMT

So what I'm interested in is not the shape of the selection marquee, but the shape of the currently active 3D filter.

Re: How to get shape of selection used for 3DFilter after filterd?

HKM — Thu, 06 Jun 2024 08:50:48 GMT

The shape of the 3D filter will be maintained indefinitely until you press the [F5] key again.
I would like to know the shape of this maintained 3D filter.

Re: How to get shape of selection used for 3DFilter after filterd?

Ralph Wessel — Thu, 06 Jun 2024 09:31:27 GMT

I think a lot of this comes down to how Archicad works. If you draw a marquee in a 2D (plan) view and then move to 3D, it builds the 3D scene cropped to the 2D marquee. But if you build the 3D scene again with the 3D view already open, it rebuilds the whole 3D scene again without any cropping to the 2D marquee. But the marquee still remains in 2D unless you explicitly clear it, so if you move back to the 2D view and then rebuild the 3D view from there, the cropping will reappear again.

ACAPI_Selection_Get will get the shape of that marquee for you - I'm pretty sure that's what you want.

Re: How to get shape of selection used for 3DFilter after filterd?

HKM — Thu, 06 Jun 2024 15:45:28 GMT

Create a view cropped with the 3D filter.
Whenever you call up the view you created, the 3D filter will be recreated.
The selection marquee doesn't matter in this case.

I would like to know the shape of the 3D filter.

Re: How to get shape of selection used for 3DFilter after filterd?

Barry Kelly — Fri, 07 Jun 2024 02:54:36 GMT

OK, so you are not talking about simply viewing a marquee crop in 3D.

You want the actual crop that is stored when you save a view in the view map.

I can't help you with that as I know nothing about API, just trying to clarify what you want.

I was under the impression you just wanted the marquee shape from the plan, which I think is what Ralph was thinking as well.

Barry.

Re: How to get shape of selection used for 3DFilter after filterd?

HKM — Fri, 07 Jun 2024 07:36:14 GMT

Thank you that is exactly right.

Re: How to get shape of selection used for 3DFilter after filterd?

Ralph Wessel — Fri, 07 Jun 2024 07:36:37 GMT

Following up on Barry's observation, can you confirm that you want the cropping stored with a 3D view stored in the Navigator? And applied according to the View setting (as shown in the attached snapshot (under marquee effect)?

Re: How to get shape of selection used for 3DFilter after filterd?

HKM — Fri, 07 Jun 2024 09:18:35 GMT

It has the same settings.