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0003441

VTK

(No Category)

public

2006-06-24 14:15

2013-04-05 19:56

Reporter

Dominik Szczerba

Assigned To

Clinton Stimpson

Priority

high

Severity

major

Reproducibility

always

Status

closed

Resolution

no change required

Platform

OS Version

Product Version

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Fixed in Version

Summary

0003441: problems with QVTKWidget and vtkCellPicker

Description

I am sending an EndPickEvent to a slot in a widget containing a QVTKWidget:

void aWidget::pick(vtkObject* caller){
  vtkRenderWindowInteractor* iren =
vtkRenderWindowInteractor::SafeDownCast(caller);

vtkCellPicker *cellPicker = (vtkCellPicker *)iren->GetPicker();
  cellPicker->PrintSelf(cerr,vtkIndent());
  long id = cellPicker->GetCellId();
  cerr << "cellPicker->GetCellId() = " << id << endl;
}

I connect to it as follows during the widget's initialization:

vtkEventQtSlotConnect* connections = vtkEventQtSlotConnect::New();
connections->Connect(widget.GetRenderWindow()->GetInteractor(),
vtkCommand::EndPickEvent,&widget,SLOT(pick(vtkObject*)));
connections->PrintSelf(cerr, vtkIndent());

The slot routine is invoked properly with the 'p' hey and all infos from PrintSelf make
sense (e.g. event position, window size, etc.), but GetCellId() doesnt
(big negative constant). What am I doing wrong, with "plain" vtkCommands (without Qt)
it works fine?

regards,
Dominik

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Notes
(0007863) Clinton Stimpson (developer) 2007-06-12 16:49	Works for me. What if you change vtkCellPicker cellPicker = (vtkCellPicker)iren->GetPicker(); to vtkCellPicker* cellPicker = vtkCellPicker::SafeDownCast(iren->GetPicker()); just to be sure you have a vtkCellPicker? If I took my vtkCellPicker out and used the default one (not a vtkCellPicker) then I got large negative numbers.

Issue History
Date Modified	Username	Field	Change
2011-06-16 13:11	Zack Galbreath	Category	=> (No Category)
2013-04-05 19:56	Berk Geveci	Status	customer review => closed