topic Re: View notification in Archicad C++ API

View notification

Anonymous — Tue, 24 Sep 2024 07:52:03 GMT

Is there a notification available for when a user changes the 3D view, as in a pan, rotate, zoom etc? A camera modification in the 2D plan view triggers a notification, but I can't see how to catch it in the 3D view. Suggestions appreciated.

Re: View notification

Anonymous — Tue, 02 Jun 2015 23:04:26 GMT

I'm not aware of any notification for 3d view cameras (but there might possibly be a way I don't know about). For my plugin I check the ArchiCAD camera position from the timer of a dialog (DG_MSG_NULL).

Paul

Re: View notification

Anonymous — Wed, 24 Jun 2015 07:26:29 GMT

Thanks for the feedback. I ended up doing a similar thing: polling camera transform in a bg thread.

Re: View notification

Anonymous — Fri, 10 Jul 2015 07:12:19 GMT

Actually I think your way is better. I'm getting all sorts of stability problems running worker threads in an AddOn. So thanks again for the suggestion.

Re: View notification

Ralph Wessel — Fri, 10 Jul 2015 10:48:57 GMT

MarkHenryC wrote:
Actually I think your way is better. I'm getting all sorts of stability problems running worker threads in an AddOn. So thanks again for the suggestion.

Perhaps this has changed, but as far as I know a worker thread shouldn't attempt to interact with ArchiCAD through the API. The API is currently designed for add-ons running on a single thread and running only when ArchiCAD specifically invokes them. Attempting any API access outside of that context is likely to cause instability. Perhaps someone for GS could comment?

Re: View notification

Anonymous — Fri, 10 Jul 2015 19:59:28 GMT

Thanks for that info, Ralph. That would certainly explain some problems I'm having (usually in the kernel/context switching area).