[vtkusers] How to change font size in a vtkCaptionActor2D?

[Mathieu Coursolle]

Hi, 
I created a vtkCaptionActor2D to display text at a specified
coordinate. Everything works fine except that whatever the font
size I set, it is always the same. I just cannot modify the font
size, and the default one is just too big. 
Any idea of what I am doing wrong?
Thank you!

//Create an actor to display the caption.

vtkCaptionActor2D* caption_actor = vtkCaptionActor2D::New();





//Create a property for the actor.

vtkTextProperty* property = vtkTextProperty::New();



//Set the color to green and font to arial.

property->SetColor(0, 1, 0);

property->SetFontFamilyToArial();



property->SetFontSize(12); //<<----That line has no effect???

//Set the actor properties.

caption_actor->SetCaptionTextProperty(property);

//Remove the caption borders.

caption_actor->SetBorder(FALSE);

//Set the caption.

caption_actor->SetCaption("My caption...");







//Set the attachment point.

caption_actor->SetAttachmentPoint(x, y, z);

//Add the caption into the renderer.

m_renderer->AddActor2D(caption_actor);



//Clear allocated memory.

caption_actor->Delete();

property->Delete();

 




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