[vtkusers] vtkImageReader

[Naveen Kumar Polapally]

hi,

I have a task where i should be able to read any part of the volume, i see 
that using  vtkImageReader i have to read slice by slice.

suppose i have 0 511 0 511 1 100, i want to be able to read
	0 255 0 255 1 50.
with vtkImageReader  even if i use
	setDataVOI(0,255,0,255,1,50) i still have to give the whole extent  
setDataExtent(0,511,0,511,1,100).

Is the any other reader which can read only a subvolume, with out any 
restrictions.

thanks.
naveen
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