topic Methods of ucs(wcs) in ObjectARX Forum

Methods of ucs(wcs)

luo.jw — Tue, 28 Jun 2022 11:03:42 GMT

When i try to set the current ucs by ucs name within the ucstablerecord, I found that the founction "acedSetCurrentUCS" doesn`t work. I wish to get more detail about ucs. How does the ucs work in objectarx,

Re: Methods of ucs(wcs)

Alexander.Rivilis — Tue, 28 Jun 2022 11:37:56 GMT

Try this code: https://forums.autodesk.com/t5/objectarx/how-to-set-current-ucs/m-p/2513619#M26377

Re: Methods of ucs(wcs)

luo.jw — Tue, 28 Jun 2022 14:29:05 GMT

Thank a lot. And i`m a newer in objectarx learining. The code in that page that you provide confuse me. Maybe i have some misunderstandings about wcs and ucs. Could you give some recommends to help me getting deeper to understand the relationship between wcs and ucs. Thank u very much.

Re: Methods of ucs(wcs)

Alexander.Rivilis — Tue, 28 Jun 2022 14:53:57 GMT

@luo.jw wrote:

Thank a lot. And i`m a newer in objectarx learining. The code in that page that you provide confuse me. Maybe i have some misunderstandings about wcs and ucs. Could you give some recommends to help me getting deeper to understand the relationship between wcs and ucs. Thank u very much.

What problem are you trying to solve?

Re: Methods of ucs(wcs)

luo.jw — Thu, 30 Jun 2022 07:32:25 GMT

Thank you very muck, I just want to know how to implement the founction: druing the process of drawing, i just need type a shortcut to set the current ucs instead of clicking the viewcube and selecting the named ucs or wcs to set the default ucs or wcs.

Re: Methods of ucs(wcs)

daniel_cadext — Sat, 02 Jul 2022 13:10:24 GMT

You need to get the view matrix and feed it to acedSetCurrentUCS

There’s a thread here https://forums.autodesk.com/t5/objectarx/need-to-mimic-ucs-v-command/m-p/5197755

This probably doesn’t do what you want, but so you have an idea

//#include "gs.h" //#pragma comment(lib, "AcDrawBridge.lib") static void ArxBrxTest_doit() { resbuf cvport; acedGetVar(_T("CVPORT"), &cvport); AcGsKernelDescriptor desc; desc.addRequirement(AcGsKernelDescriptor::k3DDrawing); const AcGsView* pView = acgsObtainAcGsView(cvport.resval.rint, desc); acedSetCurrentUCS(pView->viewingMatrix()); }

edit, might be better to send command "UCS" "V"