[vtkusers] OffScreenRendering Text

[pay928]

The images are either vtkActor or vtkImageActor depending on what they
display.  Did not display with CaptionActor2D or with a vtkActor2D
-vtkTextMapper.  I added them over the image as noted below:

        vtkTextMapper* mapper = vtkTextMapper::New();
	mapper->SetInput("Test Mapper");
	vtkActor2D* acted = vtkActor2D::New();
	acted->SetMapper(mapper);
	acted->SetPosition(500, 150);
	capRend->AddVTKProp(acted);

It still displays fine if it does not overlap with the image regardless of
the text actor I use.

Pat


Karthik Krishnan-3 wrote:
> 
> Is this a mac ?
> 
> We've had corner annotations (vtkCornerAnnotation which uses a
> vtkActor2D-vtkTextMapper) show up fine on a vtkImageActor using offscreen
> rendering on linux and windows. I'll try to add a test for the same.
> 
> What props do you have on your scene. Could you post a minimal example ?
> 
> thx
> -
> -karthik
> 
> On Thu, Jan 13, 2011 at 4:41 AM, pay928 <pbacayo at gmail.com> wrote:
> 
>>
>> Hello,
>>
>> I am having an issue after I SetOffscreenRendering(1). Everything but the
>> text annotations will show up fine after i pass the RenderWindow through
>> a
>> vtkWindowToImageFilter.  They will show up if there is no imagedata
>> overlapping, but they will not show up if the text is on the image.  Is
>> there another setting I could use to accomplish this or another text
>> actor?
>> Or is this just a limitation of the OffScreenRendering?
>>
>> Thanks,
>> Pat
>> --
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