[vtkusers] Show vtkQtLineChartView in Qt

[Jeff Baumes]

Selection in charts is something that was never fully implemented.
Your best bet for that functionality will be in the new charts
forthcoming.

Jeff

On Mon, Mar 15, 2010 at 9:17 AM, Martijn Steenwijk
<martijnsteenwijk at gmail.com> wrote:
> Hi Jeff,
>
> Thanks for your reply. I just figured out the thing you mentioned, I missed
> the call to GetWidget() somehow earlier.
> Now the second step comes however: suppose that I have two charts with the
> same content, which I want to have coupled like done in the example
> mentioned before.
> How could I do that? I've set up a function like done in the example, but
> can't get it to work:
>
> Void ClassName::SetupSelectionLink()
> {
>  vtkSelectionLink *selectionLink = vtkSelectionLink::New();
>  this->ChartView1->GetRepresentation()->SetSelectionLink(selectionLink);
>  this->ChartView2->GetRepresentation()->SetSelectionLink(selectionLink);
>
>  vtkViewUpdater *updater = vtkViewUpdater::New();
>  updater->AddView(this->ChartView1);
>  updater->AddView(this->ChartView2);
>
> }
>
> Any help would be appreciated,
>
> Thanks in advance,
> Martijn
>
> ---
> Martijn Steenwijk
> T 06 20693913
> E martijnsteenwijk at gmail.com
>
> -----Oorspronkelijk bericht-----
> Van: Jeff Baumes [mailto:jeff.baumes at kitware.com]
> Verzonden: maandag 15 maart 2010 13:51
> Aan: Martijn Steenwijk
> CC: vtkusers at vtk.org
> Onderwerp: Re: [vtkusers] Show vtkQtLineChartView in Qt
>
> The following is defined in the superclass, vtkQtChartView:
>
>  // Description:
>  // Get the main container of this view (a  QWidget).
>  // The application typically places the view with a call
>  // to GetWidget(): something like this
>  // this->ui->box->layout()->addWidget(this->View->GetWidget());
>  virtual QWidget* GetWidget();
>
> You do not need a QVTKWidget because these chart classes are not
> rendered with a VTK render window.
>
> That said, there are newer chart classes coming that will scale better
> and will use VTK's OpenGL rendering. They are being actively worked on
> in CVS head, and there will be limited access to these in the next VTK
> release.
>
> Jeff
>
> On Mon, Mar 15, 2010 at 7:52 AM, Martijn Steenwijk
> <martijnsteenwijk at gmail.com> wrote:
>> Dear all,
>>
>>
>>
>> Suppose I have a vtkTable ‘table’ filled with data, which i want to
>> visualize in within a linechart in a qt application, then my code is:
>>
>>
>>
>> vtkQtLineChartView *ChartView = vtkQtLineChartView::New();
>>
>> ChartView->SetupDefaultInteractor();
>>
>> ChartView->SetTitle(“Test”);
>>
>> ChartView->AddRepresentationFromInput(table);
>>
>>
>>
>> If I now call ‘ChartView->Show()’, the data is nicely plotted in a
> separate
>> window. When I try to integrate the view in my Qt application,  like the
> way
>> it’s done with the vtkGraphLayoutView in
>> \Examples\InfoVis\Cxx\EasyView\EasyView.cxx, I would expect that I would
>> need something like a QVTKWidget or vtkQtchartWidget in order to integrate
>> the renderer in my Qt application, but, I’m not getting both options to
>> work. Could anyone give me a hint to solve this?
>>
>>
>>
>> Best,
>>
>> Martijn
>>
>>
>>
>>
>>
>> ---
>>
>> Martijn Steenwijk
>>
>> T 06 20693913
>>
>> E martijnsteenwijk at gmail.com
>
>