[vtkusers] Oblique slice of 3D image data

[Tijmen Klein]

Thank you for the thip, the combination of vtkImageReslice ->
vtkImagemapToColors indeed gives an output that looks what I would expect :)
But I am having troubles setting the correct value
for setResliceAxesDirectionCosines(), since I only have an origin and normal
(no point1 point2).
Right now I just set the origin (SetResliceAxesOrigin()), but I don't set
the Direction. One strange thing that I am seeing, is that the plane is
rendered outside the original dataset... Would this be because I don't set a
proper direction? Or could it have some other reason?

Cheers,
Tijmen

On Tue, Sep 20, 2011 at 1:50 PM, Jothy <jothybasu at gmail.com> wrote:

> I would recommed vtkImageReslice to cut the imageData and to use
> vtkImagemapToColors with appropriate vtkLookUpTable , then map your data.
>
> Jothy
>
> On Tue, Sep 20, 2011 at 12:40 PM, Tijmen Klein <T.R.Klein at student.rug.nl>wrote:
>
>> I'm currently lost on this one. I have some 3D scalar image data, and want
>> to extract and display a 2D slice/cut from this. The origin and normal of
>> the cutting plane are obtained externally. So I construct a vtkPlane with
>> this information, and then apply this pipeline:
>>
>> vtkStructuredPointsReader -> vtkCutter (with vtkPlane as the cut function)
>> -> vtkPolyDataMapper -> vtkActor
>>
>> However, the colors that are shown on the plane don't seem to be accurate.
>> When I create a slice in Paraview of the same data, the colors on the plane
>> look completely different. Is this because Paraview uses a textured plane
>> for this? If so, how can I get this in VTK? I've looked at
>> the vtkImageReslice, but it does not really seem to be handy when you work
>> with an external normal and origin?
>>
>> Cheers,
>> Tijmen
>>
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>
>
> --
> Jothybasu K Selvaraj
> PhD Student
> University of Liverpool
> Liverpool,UK
>
>
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