[Insight-users] About deformation Field

[Karthik Krishnan]

Hi,

Paraview loads the file as a two component image and you've answered the second question yourself.

To use the "Calculator" to glyph the data, you have to first convert it to a "vector" representation. 

1. On the Calculator, you will see a "Scalars"  button with two options, "ImageFile_0" and "Imagefile_1". These are the two components. Create a vector using the calculator buttons as:
iHat*ImageFile_0 + jHat*ImageFile_1 

2. Then use Glph to see the deformation field

HTH
karthik




BATY Xavier wrote:

>Hi all,
>
>I have a *.mhd file representing a 2D deformation field. It is the result of
>a registration between 2 MR black and white brain images.
>
>According to the 8.14 chapter of the ITK Software Guide, I must convert this
>to a 3D vector data with a calculator in Paraview.
>
>My question is: How the Calculator works? What operation should I made?
>
>Another one: in Display/EditColorMap/Vector we have the choice between
>Magnitude and Component (1 & 2).
>Is The magnitude represent the magnitude of the vectors of the deformation
>field?
>And the component 1 & 2 the components of the vectors (ie the X and Y
>components)?
>
>Thanks (and sorry, I'm not very familiar with paraview)
>
>Xav
>
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