Methods of ucs(wcs)

[luo.jw]

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,

[Alexander.Rivilis]

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

[luo.jw]

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.

[Alexander.Rivilis]

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@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.

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What problem are you trying to solve?

[luo.jw]

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.

[daniel_cadext]

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"