[Insight-users] Incorrect deformation field using paraview

[motes motes]

Ah found it thanks! So now I do:

      MetaImage_X*iHat+MetaImage_Y*jHat+0*kHat

where   MetaImage_X and MetaImage_Y are selected from the scalars menu.

Next I add a glyph filter, but when I press apply a empty 3D
coordinate system appears - not a single deformation vector shows up -
even though Max num of points = 5000.

When I press the Information tab in the Glyph filter I can see that:

Data Arrays:

Name             Data Type      Data Ranges
MetaImage      float              [-inf, -1e+38], [-inf, -1e+38]
GlyphVector    float              [ 1e+38, -1e+38], [ 1e+38, -1e+38],
[ 1e+38, -1e+38]

Could this maybe have something to do with the lack of deformation vectors?



On Tue, Nov 3, 2009 at 4:11 PM, Karthik Krishnan
<karthik.krishnan at kitware.com> wrote:
> On Tue, Nov 3, 2009 at 9:59 AM, motes motes <mort.motes at gmail.com> wrote:
>>
>> On Tue, Nov 3, 2009 at 3:40 PM, Karthik Krishnan
>> <karthik.krishnan at kitware.com> wrote:
>> > On Tue, Nov 3, 2009 at 9:33 AM, motes motes <mort.motes at gmail.com>
>> > wrote:
>> >>
>> >> But when I view the .mhd file in paraview I just get:
>> >>
>> >> http://37133.vs.webtropia.com/apache2-default/test/test0.png
>> >>
>> >>
>> >> In paraview I load the .mhd file. Then I add a calculator and type:
>> >>
>> >>      coordsX*iHat+coordsY*jHat+0*kHat
>> >
>> > It should read
>> >
>> > MetaImage_0*iHat + MetaImage_1*jHat +  0*kHat
>> >
>> > Choose MetaImage_* from the pull down menu on the calculator. You chose
>> > coords (which are simply coordinates of the points, not the scalar
>> > values of
>> > the their components) which perfectly explains the image you see.
>>
>>
>>
>>
>>
>>
>> Its not possible to choose MetaImage_* from any menus in the
>> calculator.
>
> It is there in the the "Scalars" pull down  menu on the Calculator tab, not
> in the attribute menu.
>
>>
>> From the "attribute mode" drop down menu I can choose:
>>
>> Point data
>> cell data
>>
>> If  I manullay type:
>>
>> MetaImage_0*iHat + MetaImage_1*jHat +  0*kHat
>>
>> into the expression editor and press apply I just get a bunch of error:
>
> Think its the spaces. In any case, use the menu and select what appears.
>
>
>