[vtkusers] change imagedata during runtime

[Divya Rathore]

yourInteractor->Render();


On Thu, Oct 27, 2011 at 2:17 PM, Hikaruchan
<Sandra.Schroetter.fl at ait.ac.at>wrote:

> Hi!
>
> I am new to VTK, and maybe it is an too simple question, but I do not get
> it
> work. Hope you can help me.
>
> I have an application with four renderviews (three 2D, one 3D), where I
> show
> my different MRI Slices (sagittal, coronal and axial, and in 3D all of
> them). Now I wanted to make a new Imagedata (which is no problem) and draw
> to it (which is no problem). After a user input I change some of the
> scalars
> of the imagedata (using GetScalarPointer()), but my changes are not
> displayed. I called
>
> electricDensityIma->Update(); //thats the vtkImageData
>
> after I have made my changes to imagedata.
>
> I don't know if it is important, but I make my image, then put a
> vtkImageGaussianSmooth on it, then a vtkImageMedian3D then a
> vtkImageReslice
> and so on.
>
> But I don't get it work, that the display is updated. Hope someone can help
> me and explain me how a imagedata can be changed during runtime and
> correcty
> updated and displayed.
>
> Thank you in advance and please excuse my bad english. :-)
>
>
> --
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