[Paraview] different orientation of input files

[David E DeMarle]

What does the information tab say about the extent and bounds of both
the original file and the file produced by ITK-snap?

Having never used it myself, I am suspicious that ITK-snap might not
be respecting the input data sets origin or spacing, which could
matter if they are not 0,0,0 and 1,1,1 respectively.

If that is the case, you can use this Script in a python programmable
filter to arbitrarily move the structured grid input to match the
transformed location of the isocontour.

id = self.GetInput()
od = self.GetOutput()
od.ShallowCopy(id)
od.SetOrigin(10,10,10)
od.SetSpacing(2,2,2)

David E DeMarle
Kitware, Inc.
R&D Engineer
21 Corporate Drive
Clifton Park, NY 12065-8662
Phone: 518-881-4909


On Wed, May 16, 2012 at 12:29 PM, Tom Schoenemann <toms at indiana.edu> wrote:
> Hi everyone,
>
> I have a question about changing/editing the orientation and origin
> information about an input file.  Basically, the problem is this: I have a
> 3D volume (originally voxel data) file that contains statistics on its
> surface that I want to display color-coded.  I can create a nice smoothed
> version of the surface using a different piece of software (ITK-SNAP), and
> this is the surface I'd like to use to display my stats (Paraview does not
> allow you to smooth the surface in the same way that ITK-SNAP does,
> eliminating the stair-step surface artifacts).  I can indeed read both the
> stats file and the surface file from ITK-SNAP into Paraview, but
> unfortunately they now have different origins. That is, they don't overlap
> (the bounding box for the stats is completely outside the surface model that
> ITK-SNAP created.
>
> Originally, both files had the same orientation and origin: ITK-SNAP used
> the same file to create the beautiful surface that the stats were created
> with.
>
> So Paraview apparently does not read the header info the same way for the
> two types of files, even though ITK-SNAP does.
>
> Is there a way to change the origin and/or orientation of files in Paraview?
>  I'm assuming there is a simple transform I could figure out by trial and
> error to get them to overlap again, but I don't know how or where I would do
> this.
>
> Thanks for any suggestions!
>
> -Tom
>
> _________________________________________________
> P. Thomas Schoenemann
>
> Associate Professor
> Department of Anthropology
> Indiana University
> Bloomington, IN  47405
> Phone: 812-855-8800
> E-mail: toms at indiana.edu
>
> Open Research Scan Archive (ORSA) Co-Director
> Consulting Scholar
> Museum of Archaeology and Anthropology
> University of Pennsylvania
>
> Homepage: http://mypage.iu.edu/~toms/
>
>
>
>
>
>
>
>
>
>
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