[vtkusers] Rotating ImageData from vti file

[Jothybasu Selvaraj]

Using vtkImageReslice you could rotate the vtkImageData.

You need to create a vtkMatrix4x4 for the rotation nad pass this matrix to
vtkImageReslice::
SetReSliceAxes

Jothy


On Wed, Apr 11, 2012 at 3:17 PM, Jothybasu Selvaraj <jothybasu at gmail.com>wrote:

> Using vtkImageReslice you could rotate the vtkImageData?
>
> You need to create a vtkMatrix4x4 for the rotation nad pass this matrix to
> vtkImageReslice::SetReSliceAxes
>
> Jothy
>
> On Wed, Apr 11, 2012 at 3:10 PM, Christoffer Green <
> christoffer.green at gmail.com> wrote:
>
>> Hello!
>>
>> I have been trying to figure out if it is possible to rotate data
>> directly from a imagedata xml file. Can anyone lend me a hand on how to do
>> that?
>>
>> I am currently exporting data from matlab to a .vti imagedata xml file
>> and importing it to paraview (that is I am writing the file without using
>> vtk classes) but I
>> do not know how to rotate the data. According to the
>> www.vtk.org/VTK/img/file-formats.pdf file there is a Coordinate tag
>> but it does not appear to have an effect when importing, but on the other
>> hand its barely documented and I am really just guessing on how to use it.
>>
>> Currently I am testing with this data (but my actual data is much larger):
>>
>> <?xml version="1.0"?>
>> <VTKFile type="ImageData" version="0.1" byte_order="LittleEndian">
>> <ImageData WholeExtent="0 1 0 1 0 0" Origin="0.0 0.0 0.0" Spacing="0.4
>> 0.4 0.4">
>>  <Piece Extent="0 1 0 1 0 0">
>> <Coordinates>
>> <DataArray type="Float32" Name="x_coordinate" format="ascii">0.0 0.3
>> 0.0</DataArray>
>>  <DataArray type="Float32" Name="y_coordinate" format="ascii">0.5 0.2
>> 0.0</DataArray>
>> <DataArray type="Float32" Name="z_coordinate" format="ascii">1.0 0.0
>> 0.0</DataArray>
>>  </Coordinates>
>> <PointData>
>> <DataArray type="Float32" Name="MagnitudeArray" format="ascii">0.1  0.3
>>  0.5  0.8</DataArray>
>>  </PointData>
>> </Piece>
>> </ImageData>
>> </VTKFile>
>>
>> Thanks
>>
>> BR/ Christoffer
>>
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>
>
> --
> Jothy
>
>


-- 
Jothy
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