[Paraview-developers] Sending a vector from GUI to Server

[RIVERA ROLDAN, Jorge Orlando]

Dear  Mailing list

I was developing a  reader for   3.98  and  I want to port into 4.3.1. A short description follows:

I use a  vtkSMIntVectorProperty selProp to  store a vector with  1 or 0 (true  or false ) .    This vector  selPro  is l filled when in the GUI  I call the accepted property (Apply in Pipeline Browser:: Properties )  .  This  selPro  is connected to a function ActivateSelVec on the server , that   fills another vector  (vtkIntArray)   selVec.

When  the RequestData is called   selVec  should be already filled with 1s and 0s. (the same values of  selPro  )

In 3.98  RequestData (the whole sequence in fact )  is called twice  when I press Apply,  Don’t know  how ?  but I see it with the  debugger.

The order in which  the functions are called  are:

1st call
SetActivateSelVec   (Server:  fills selVec   – with zeros only since  accepted was not executed -- )
Accepted           (Gui  fills   selPro  with 1 and 0   depending  on the state  of qtree)
RequestData      (Does nothing since  selVec    is  all 0 )

2nd call
SetActivateSelVec   (Server:  fills selVec   – this time  correctly since Accepted was already call in the first call and selPro has correct values  )
Accepted           (Gui  fills   selPro  with 1 and 0   depending  on the state  of qtree , which is the same as the 1st call )
RequestData      (Works  since  selVec    has 1 and 0  from ActivateSelVec    in the second call   )



In 4.3.1   does not work  because  the sequence is called  once !!

1st call
SetActivateSelVec   (Server:  fills selVec   – with zeros only since  accepted was not executed -- )
Accepted           (Gui  fills   selPro  with 1 and 0   depending  on the state  of qtree)
RequestData      (Does nothing since  selVec    is  all 0 )  !!!!


The problem is  that in 4.3.1  This sequence is called only once .

Another  reformulation   of my question will be  : How can I send   values to  RequestData   from the GUI ?


Any  help will be  greatly  appreciated

Regards

Orlando Rivera

PS  My files look like this

--------------------------

pqReader.cxx:

pqReader::pqReader   //GUI constructor
{
this->selPro=vtkSMIntVectorProperty::SafeDownCast(this->proxy()->GetProperty( "ActivateSelVec"  ));
}



-----------------------------
Reader.xml:

<ServerManagerConfiguration>
  <ProxyGroup name="sources">
  ….

      <IntVectorProperty name="ActivateSelVec"
          command="SetActivateSelVec
              number_of_elements="0"
              repeat_command="1"
              number_of_elements_per_command="1"
          use_index="1"
          default_values="0"
              label="ActivateStructure">
      </IntVectorProperty>


</ServerManagerConfiguration>



-----------------

vtkReader.cxx

void vtkReader:: SetActivateSelVe (int idx, int flag);
{
selPro->InsertTuple1(idx,flag);
}


Int vtkReader::RequesData(…)
{
     /*   getData  using  selPro  */
}
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