Hi Sebastian,

This seems strange indeed... In which way are you changing content of the image 
data? Could you post parts of your code so that we can try to reproduce?


Regards,
Mathias


-----Original Message-----
From: sebastian ordas [mailto:[email protected]] 
Sent: Thursday, April 15, 2010 4:16 PM
To: Seitel Mathias
Cc: [email protected]
Subject: Re: [mitk-users] how to force a volume rendering to update?

thank you, but none of those solutions actually worked for me

is the volume render being updated in your segmentation plugin?

i think the problem is that e.g. in GPUVolumeMapper3D::GenerateData(),
when vtkImageData *inputData =
input->GetVtkImageData(this->GetTimestep()) is requested, mitk::Image
retrieves the original vtkImageData and not an updated version

what do you think?

thank you
sebastian

On Thu, Apr 15, 2010 at 11:07 AM, Seitel Mathias
<[email protected]> wrote:
> Hi Sebastian,
>
> Generally, in order to request an update of the rendering at any time, you 
> can call
>
>  mitk::RenderingManager::GetInstance()->RequestUpdateAll();
>
> and the display will update itself at the next possible time point (usually 
> after the current event-processing loop finishes). It is also possible to 
> issue an update for single render windows (see documentation).
>
> In case the display update works, but the system does for some reason not 
> recognize that the data has changed, try to call the Modified() method on the 
> object to be rendered (probably the mitk::Image in your case).
>
>
> Hope that helps!
> Mathias
>
>
>
> -----Original Message-----
> From: sebastian ordas [mailto:[email protected]]
> Sent: Thursday, April 15, 2010 4:00 PM
> To: [email protected]
> Subject: [mitk-users] how to force a volume rendering to update?
>
> Hello,
>
> How can I force the volume render of an image (in my case, a binary
> image, a segmentation) to update when its content (data) has changed?
> Is that feature working for you guys in your Segmentation bundle?
>
> thank you!
> sebastian
>
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