[vtkusers] thresholding question

[Bill Lorensen]

vtkSliceCubes processes 4 slices at a time.

See the example:
patented/examplesTcl/genPineRoot.tcl 

Bill

At 08:23 PM 12/5/00 -0800, Tao-Pak Chris Tsui wrote:
>Greetings!
>
>I am looking at "threshold.tcl" as an example for my
>application..  it works fine if the dataset I have is
>not large..  what I have is about 100mb of CT data.. 
>it's just too slow to read the entire 100mb of data
>into memory (indeed seems impossible for my 128mb RAM)
>each time when I alter the threshold value... 
>
>is there any way to solve this problem?  is there
>something like vtkMCubesReader to read 4 slices at a
>time?  (vtkMCubesReader is giving polydata but
>vtkThreshold is expecting some scalar values as
>input.. )
>
>
>the data I really want to extract is some tiny steel
>balls which has been implemented into a skull..  these
>balls appear to be much brighter from the CT slices.
>
>is there any way to extract these tiny balls?  Thanks
>so much!!
>
>Chris