Hi Thomas,
I stumbled across another problem: the colortransferfunction works, however
setting the opacity of the transferfunction (using AddScalarOpacityPoint)
does not work. I would like that all zero values of the segmentation have
an opacity of 0.0.
Is there something else with the renderer that I have to activate?
best, michael
2013/7/1 Kilgus, Thomas <[email protected]>
> Ah sorry, I forgot to mention that. Anyway you found it yourself. Good
> work! J****
>
> ** **
>
> Regards****
>
> Thomas****
>
> ** **
>
> ** **
>
> Thomas Kilgus****
>
> German Cancer Research Center (DKFZ)****
>
> Div. Medical and Biological Informatics ****
>
> Junior group: Computer-assisted Interventions (E131)****
>
> Im Neuenheimer Feld 280****
>
> 69120 Heidelberg, Germany****
>
> Phone: +49(0) 6221-42-3545****
>
> ** **
>
> ** **
>
> ** **
>
> *From:* Michael Helmberger [mailto:[email protected]]
> *Sent:* Montag, 1. Juli 2013 13:56
> *To:* Kilgus, Thomas
> *Subject:* Re: [mitk-users] Transferfunctions****
>
> ** **
>
> Hello,****
>
> ** **
>
> if found the error in the code: I had to use the property names "Image
> Rendering.Transfer Function" and "Image Rendering.Mode".****
>
> ** **
>
> now it works like a charm!****
>
> ** **
>
> thanks :)****
>
> ** **
>
> 2013/7/1 Michael Helmberger <[email protected]>****
>
> Hello Thomas,****
>
> ** **
>
> thanks for the fast reply! I tried setting the property but I think I
> still miss something. I use the following code to set the Transferfunction:
> ****
>
> ** **
>
> // set the rendering mode****
>
> mitk::RenderingModeProperty::Pointer renderingModeProp =
> mitk::RenderingModeProperty::New()****
>
>
> renderingModeProp->SetValue(mitk::RenderingModeProperty::COLORTRANSFERFUNCTION_LEVELWINDOW_COLOR);
> ****
>
> node->SetProperty("RenderingMode", renderingModeProp);****
>
> ** **
>
> // set the transfer function****
>
> mitk::TransferFunctionProperty::Pointer transferFuncProp =
> mitk::TransferFunctionProperty::New();****
>
> mitk::TransferFunction::Pointer transferFunction =
> mitk::TransferFunction::New();****
>
> ** **
>
> transferFunction->AddRGBPoint(1, 1,0,0); // label 1 should be red****
>
> transferFunction->AddRGBPoint(2, 0,1,0); // label 2 green****
>
> ** **
>
> transferFuncProp->SetValue(transferFunction);****
>
> node->SetProperty("TransferFunction", transferFuncProp);****
>
> ** **
>
> multiWidget->RequestUpdate();****
>
> ** **
>
> ** **
>
> thanks,****
>
> ** **
>
> michael****
>
> ** **
>
> ps: sorry for spamming you thomas ;)****
>
> ** **
>
> 2013/7/1 Kilgus, Thomas <[email protected]>****
>
> ** **
>
> Hi Michael,****
>
> ****
>
> if you want to use a TransferFuntionProperty to render an image, you have
> to set the property “Image Rendering.Mode” (mitkRenderingModeProperty) to a
> mode which enables the TransferFuntion.
> COLORTRANSFERFUNCTION_LEVELWINDOW_COLOR will apply your TransferFunction
> and also allow you to modify the range via the level window property (level
> window slider in mitkWorkbench). COLORTRANSFERFUNCTION_COLOR will only
> apply your TransferFunction.****
>
> ****
>
> Regards,****
>
> Thomas****
>
> ****
>
> *From:* Michael Helmberger [mailto:[email protected]]
> *Sent:* Montag, 1. Juli 2013 12:06
> *To:* [email protected]
> *Subject:* [mitk-users] Transferfunctions****
>
> ****
>
> Hello,****
>
> ****
>
> I am using the QmitkStdMultiWidget to display a CT volume and a
> segmentation. I would like to assign different colors to different labels
> in the segmentation, however setting the TransferFunctionProperty of the
> corresponding mitk::DataNode did not change anything. ****
>
> ****
>
> I also tried changing the Color property, however this does effect the
> whole image and I cannot change the color for separate labels.****
>
> ****
>
> Thanks,****
>
> ****
>
> Michael****
>
> ** **
>
> ** **
>
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