MCOMMAND_CONVERTSELECTION [SOLVED]

On 02/07/2015 at 09:35, xxxxxxxx wrote:

User Information:
Cinema 4D Version:   R16 
Platform:      Mac OSX  ; 
Language(s) :     C++  ;

---------
Hi,

I'm trying to convert a selection from edge-mode to point-mode.
Here is what I've got so far:

  
    
    
    BaseContainer bc;  
    bc.SetInt32(MDATA_CONVERTSELECTION_LEFT, 1);  
    bc.SetInt32(MDATA_CONVERTSELECTION_RIGHT, 0);  
    bc.SetBool(MDATA_CONVERTSELECTION_TOLERANT, false);  
    ModelingCommandData cd;  
    cd.doc = doc;  
    cd.arr = selection;  
    cd.bc = &bc;  
    if (!SendModelingCommand(MCOMMAND_CONVERTSELECTION, cd))  
    {  
      return false;  
    }  
    EventAdd();

Is it normal that this doesn't update visually?
And if so, what do I have to do to make it visible?

Greetings,
Casimir Smets

On 02/07/2015 at 10:01, xxxxxxxx wrote:

After SendModelingCommand(), update the objects involved:

for (Int32 x = 0; x < selection->GetCount(); x++)
{
     BaseObject *op = static_cast<BaseObject*>(selection->GetIndex(x));
     if (!op) continue;
     op->Message(MSG_UPDATE);
}

It is also possible that MCOMMAND_CONVERTSELECTION in SendModelingCommand() does not handle multiple objects like the Convert Selection command does.  Try it with one object, setting cd.op instead of using a selection in cd.arr to confirm its behavior.

On 02/07/2015 at 11:54, xxxxxxxx wrote:

Hi Robert,

I've tried everything you said, with no results :s
Here is my last piece of code:

for (Int32 x = 0; x < selection->GetCount(); x++)
{
  BaseContainer bc;
  bc.SetInt32(MDATA_CONVERTSELECTION_LEFT, 1);
  bc.SetInt32(MDATA_CONVERTSELECTION_RIGHT, 0);
  bc.SetInt32(MDATA_CONVERTSELECTION_TOLERANT, false);
  ModelingCommandData cd;
  cd.doc = doc;
  cd.op = static_cast<BaseObject*>(selection->GetIndex(x));
  cd.bc = &bc;
  if (!SendModelingCommand(MCOMMAND_CONVERTSELECTION, cd))
      return false;
  op = static_cast<BaseObject*>(selection->GetIndex(x));
  if (!op) return false;
  op->Message(MSG_UPDATE);
}

But this seems to do nothing :s

Thanks for your help and time!
With kind regards,
Casimir Smets

On 02/07/2015 at 13:21, xxxxxxxx wrote:

I just tried it with one object and it works great.  Remember that to see the resulting conversion in the viewport, you will need to set the document mode (SetMode()) to be Mpoints.  Here is a quick test (using a button in a dialog from a CommandData to do the conversion) :

//*---------------------------------------------------------------------------*
void MIDialog::RunCommand()
//*---------------------------------------------------------------------------*
{
	BaseDocument*	doc =	GetActiveDocument();
	BaseObject*		op =	doc->GetActiveObject();
	if (!op)
	{
		GePrint("Test_Command.MIDialog.RunCommand.op");
		return;
	}
	BaseContainer bc;
	bc.SetInt32(MDATA_CONVERTSELECTION_LEFT, 1);
	bc.SetInt32(MDATA_CONVERTSELECTION_RIGHT, 0);
	bc.SetBool(MDATA_CONVERTSELECTION_TOLERANT, false);
	ModelingCommandData cd;
	cd.doc = doc;
	cd.op = op;
	cd.bc = &bc;
	if (!SendModelingCommand(MCOMMAND_CONVERTSELECTION, cd))
	{
		GePrint("Test_Command.MIDialog.RunCommand.SendModelingCommand");
		return;
	}
	op->Message(MSG_UPDATE);
	doc->SetMode(Mpoints);
	EventAdd();
}

On 03/07/2015 at 05:24, xxxxxxxx wrote:

Hi Robert,

Thanks for your answer!
That indeed did it!

This thread can be marked as solved!

With kind regards,
Casimir Smets