Re: Point position before modeling marker

["guillaume laforge" <guillaume.laforge.3d(at)gmail.com>]

[Andy]
For general scripting, you want to look at Primitive.GetGeometry() which

you can pass in a value to specify what construction mode to retrieve the
geometry object from.For a scripted operator, I'm not so sure, since it
doesn't have one of those cog icons by the title in the SDK docs, so Soft

obviously don't recommend using it in a SCOP.
[/Andy ]
You are right, "Primitive.GetGeometry()" is not the solution for a SCOP. The SDK said that "mode"  argument is ignored inside operators :-/.

[Robert]
I'm pretty sure you would be able to do it - both AddScriptedOp and

AddScriptedOpFromFile have a construction mode argument.
[/Robert]
Yes but it is not the created operator who need to be in modeling construction mode. I need it in secondary mode and read points position from modeling mode.
But thanks for your answer, it helps me to understand the next reply from Andy :-).

[Andy]
Could you add an operator in modelling mode and get it to save the point
positions into a userdatablob, then add an operator in secondary shape

mode to read it back in?
[/Andy]
Thanks Andy ! I think it is the way to go...but I'm stoped half the way.
I can create a userdatablob  by script. I run those lines with all operators disable above modeling mode :
oPoints = oObject.ActivePrimitive.Geometry.Points.PositionArray.toArray();
var oBlob = oObject.AddProperty( "UserDataBlob", false, "v2nSaveModelingUDB" ) ;
oBlob.Value = oPoints

Now if I applied my "mask SCOP" in secondary mode it successfully read the point position from the userdatablob ! 

So I continue on this way and write an operator to dynamically save point position from modeling construction mode...and I miserably failed.

Here is the SCOP applied on a userdatablob :

function XSILoadPlugin( in_reg )
{
    in_reg.Author = "Guillaume Laforge";
    in_reg.Name = "v2nSaveModelingOp";
    in_reg.Major = 1;
    in_reg.Minor = 0;

    in_reg.RegisterOperator("v2nSaveModelingOp");    
    in_reg.RegisterMenu(siMenuTbDeformID,"v2nSaveModelingOp_Menu",false,false);

    //RegistrationInsertionPoint - do not remove this line

    return true;
}

function v2nSaveModelingOp_Menu_Init( ctxt )
{
    var oMenu;
    oMenu = ctxt.Source;
    oMenu.Filter = siGeometryFilter ;

    oMenu.AddCallbackItem("v2nSaveModelingOp (JScript Plugin)","v2nSaveModelingOpMenu");    
    
    return true;
}

function v2nSaveModelingOpMenu( ctxt )
{
    // This function is called when the "v2nSaveModelingOp (JScript Plugin)" menu is clicked.
    var oTargets = Application.Selection;
    
    // Loop so that we build a separate operator for each selected object.
    for ( i = 0 ; i < oTargets.Count
 ; i++ )
    {
        oObject = oTargets.Item(i) ;

        // Two connections on this SICO.
        oObjectPrimitive = oObject.ActivePrimitive
 ;
        oBlob = oObject.AddProperty( "UserDataBlob", false, "v2nSaveModelingUDB" ) ;
        
        //v2nSaveModelingOp connexions
        AddCustomOp( "v2nSaveModelingOp",            // Type
                    oBlob ,                          // Output
                    [ oBlob, oObjectPrimitive   ],  // Inputs
                    "v2nSaveModelingOp", // Name
                     siConstructionModeModeling ) ;    //Applied in modeling Construction mode                
                
    }        
}

function v2nSaveModelingOp_DefineLayout( ctx )
{
    layout = ctx.Source
    layout.Clear() ;
    layout.AddItem( "Mute" ) ;    
}


//v2nSaveModelingOp operator
function v2nSaveModelingOp_Update( ctx )
{
    // Get the object primitive.
    var oInputPrimitive = ctx.GetInputValue( 1 ) ;
    
    ctx.OutputPort.Value = oInputPrimitive.Geometry.Points.PositionArray.toArray();
    return;
}

No error warning occure when I apply this SCOP but when I read the userdatablob value  it gives an "Invalid argument specified" at 
this line in the SCOP :     ctx.OutputPort.Value = oInputPrimitive.Geometry.Points.PositionArray.toArray
();

My question is, how to save points positions in this userdatablob with a SCOP ?

Thanks

Guillaume