[vtkusers] Oblique slice of 3D image data

[Jothy]

You could create a vtkMatrix4x4  and set this matrix to
vtkImageReslice->SetResliceAxes(matrix4x4).

Jothy

On Tue, Sep 20, 2011 at 1:32 PM, Tijmen Klein <T.R.Klein at student.rug.nl>wrote:

> 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
>>
>>
>


-- 
Jothybasu K Selvaraj
PhD Student
University of Liverpool
Liverpool,UK
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