[vtkusers] vtkProjectedPolyDataRayBounder problem

[Jianlong Zhou]

hi, all,
As the reason stated bellow, I use vtkProjectedPolyDataRayBounder to clip the volume 
, when I zoom in the scean, there is a hole in the center of the boundered volume. How 
to dynamically set the clipping range of the camera in order to fix this problem.

> The good news is you won't have this problem in VTK 4.0. The bad news is 
> that is because vtkProjectedPolyDataRayBounder no longer exists.
> 
> The problem you are experiencing is due to clipping. If you set the 
> clipping range of the camera yourself this should fix the problem (unless 
> you are really close your camera position is within the clipping sphere).
How to do this?

Thank you very much.

Best regards,
Jianlong

> 
> Lisa
> 
> 
> At 03:21 PM 2/21/2002, Jianlong Zhou wrote:
> >hi, all
> >
> >I use vtk32. I use vtkProjectedPolyDataRayBounder to clip the volume and 
> >bounded the
> >ray to a geometric shape (e.g. sphere) and only render the cliped volume 
> >using direct
> >volume rendering. But I have a problem, when I zoom in the renditions, in 
> >the middle of
> >the bounded volume a hole appears. At the normal size, there is no 
> >problem. Do you
> >know how to solve this problem? Is there any other alternatives for this 
> >kind of ray-
> >bounded volume rendering? How about in vtk4?
> >
> >Thank you in advance.
> >
> >Best regards,
> >Jianlong
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