[vtkusers] Buffered Reading of vti File

[Kevin H. Hobbs]

On 03/26/2013 07:20 PM, Grant McAuley wrote:
> 
> 
> I am new to vtk, and am guessing that what I want to do is not a
> standard vtk use case. 

I'm not sure such a thing exists. I always seem to find corner
cases too.

> While the vti files are used for the
> purpose of later visualization (eg, in ParaView) of simulation
> data, what I want to do here is to just get data out of the vti
> to feed into another simulation.  

Maybe you can set up your pipeline like :

reader -> clip

where clip is an instance of vtkImageClip :

http://www.vtk.org/doc/nightly/html/classvtkImageClip.html

and you can clip->SetOutputWholeExtent( x1,x2,y1,y2,z1,z2);
clip->Update(); when your 'other' simulation leaves the previous
extent.



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