vtkVolume

[Lisa S. Avila]

Hello Tony,

At the moment, you must render the volume to the window. You can obtain the 
image by asking the render window for the RGB pixel values. In the future 
there is likely to be other options, but I cannot predict a time schedule 
for that.

Lisa

On Monday, July 26, 1999 7:24 PM, Tony Rudd [SMTP:tonyrudd at yahoo.com] 
wrote:
> I working with vtkVolumeRayCastFunction.  Instead of rendering (like in
> the examples)
> onto the "visible" Window, I would like to render onto a 2-D image
> where there I could apply some of the vtk
> imaging routines to it.
>
> So my question is:  How can I ray-cast a volume to a projected plane
> without
> drawing on the Window AND have direct access to the projected image, ie
> a pointer to the image.
>
>     VolumeProperty = vtkVolumeProperty::New();
>         VolumeProperty->ShadeOn();
>         VolumeProperty->SetInterpolationTypeToNearest();
>         VolumeProperty->SetColor(gtfun);
>
>     MipFunction = vtkVolumeRayCastMIPFunction::New();
>
>     VolumeMapper = vtkVolumeRayCastMapper::New();
>         VolumeMapper->SetScalarInput(pDocVol16Reader->GetOutput());
>         VolumeMapper->SetVolumeRayCastFunction(MipFunction);
>         VolumeMapper->SetSampleDistance(1.0);
>
>     Volume = vtkVolume::New();
>         Volume->SetVolumeMapper(VolumeMapper);
>         Volume->SetVolumeProperty(VolumeProperty);
>
>        Props->AddItem(Volume);
>        //  WOULD LIKE to render onto a image!!!
>        //  NOT render on the screen  	
>
> thanks
>
> tony
>
> Tony Rudd
> Medical Student
> tonyrudd at yahoo.com
>
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