[vtkusers] vtkChart - difficulty changing title colour and font size

[John Platt]

Hi Arnaud,

Thanks for your suggestion but it does not change the behaviour.
Here is my code for changing the chart title colour ...

    vtkTextProperty* txtProp = myChart->GetTitleProperties();
    txtProp->SetColor( r, g, b );
    myChart->GetScene()->SetDirty( true );

Thanks for your help.

John.

----- Original Message ----- 
  From: Arnaud BARRE 
  To: John Platt 
  Sent: Tuesday, December 18, 2012 6:19 PM
  Subject: Re: [vtkusers] vtkChart - difficulty changing title colour and font size


  How do you modify these properties? You can use the method vtkScene::SetDirty. For example chart->GetScene()->SetDirty(true); This should update your modifications in the next rendering.


  Arnaud




  On Tue, Dec 18, 2012 at 7:07 PM, John Platt <jcplatt at dsl.pipex.com> wrote:

    Hi,

    I'm having trouble changing the text colour and font size of the chart & axes titles. They will change when bold or italic is toggled and also after a lot of zooming in the chart. Maybe there is some issue with caching. Has anybody else had problems?

    VTK 5.8.0,  Qt 4.6.2, Win XP, VS 2008

    Thanks,

    John.

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