Re: passing tagged points through a C++ command

["Christopher Crouzet" <christopher.crouzet(at)gmail.com>]

Hello,
I was curious to see how to solve this problem, so I did few tests and I finally found the solution in the 'CComAPIHandler' class. It seems that the 'SubComponent' class is not fully implemented in the C++ SDK, so it's the only way. There is a great example under the 'Invoke' function from the doc to do what you want.
You just have to adjust a little the code from the example, and it's OK.

Here is the 'final' code wich works for both selected components and string input as "Object.pnt[....]" :

XSIPLUGINCALLBACK CStatus MyCommand_Init(CRef &in_ctxt)
{
    Context ctxt = in_ctxt;
    Command cmd = ctxt.GetSource();
    cmd.EnableReturnValue(false);


    // Add some arguments to the command.
    ArgumentArray args;
    args = cmd.GetArguments();
    args.AddWithHandler(L"in_objList", siArgHandlerCollection);


    return CStatus::OK;
}

XSIPLUGINCALLBACK CStatus MyCommand_Execute(CRef &in_ctxt)
{
    Application app;

    // Retrieve data from the argument list.
    CValueArray args = ctxt.GetAttribute(L"Arguments");
    CValueArray in_objList = args[0];


    // Iterate over the object list.
    for (LONG i = 0; i < in_objList.GetCount(); i++ ) {
        // The collection of selected components exists in the first member.
        CComAPIHandler comCollItem = (CRef)in_objList[i];
        CComAPIHandler comSubComp = comCollItem.GetProperty(L"SubComponent");
        CValue subCompType = comSubComp.GetProperty(L"Type");

        // Grab the component collection.
        CComAPIHandler comCompColl(comSubComp.GetProperty (L"ComponentCollection"));


        // Now we can iterate over the component collection's members.
        LONG lCollCount(comCompColl.GetProperty(L"Count"));

        for (LONG j = 0; j < lCollCount; j++) {
            CValue rtn;                             // output from the Item property.
            CValueArray idx; idx.Add(j);            // set the index to use.
            comCompColl.Invoke( L"Item", CComAPIHandler::PropertyGet, rtn, idx );

            // From the CRef class, we can convert it to the actual class.
            CRef itm(rtn);
            if (itm.GetClassID() == siVertexID) {
                Vertex vtx = Vertex(itm);
                app.LogMessage(L"Found a vertex at index " + CString(vtx.GetIndex()));
            }
            else if (itm.GetClassID() == siSampleID) {
                Sample smp = Sample(itm);
                app.LogMessage (L"Found a sample at index " + CString(smp.GetIndex()));
            }
            else if (itm.GetClassID() == siEdgeID)
            {
                Edge edg = Edge(itm);
                app.LogMessage (L"Found a edge at index " + CString(edg.GetIndex()));
            }
            else if (itm.GetClassID() == siControlPointID) {
                ControlPoint ctrl = ControlPoint(itm);
                app.LogMessage(L"Found a control point at index " + CString(ctrl.GetIndex()));
            }
        }
    }


    return CStatus::OK;
}

Hope it helps.

On 8/30/07, Mathieu Leclaire <mleclair(at)hybride.com> wrote:

I want to pass tagged points as an argument trough my custom command but I'm not sure how to extract them in C++ from the CValue…

 

Example: MyCommand("Object.pnt[2764,3281,3802,4156,4160,4167,4487]");

 

What are the steps to go through to get access to the points so I can then change the position of the tagged points?

 

 

Mathieu Leclaire

R&D Programmer

Hybride Technologies

 

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