[vtkusers] Saving seed points in ImagePlaneWidget

[Xiaopeng Yang]

Hello everyone,

 

I am working on developing a simple medical image segmentation program,
which provide interactive selection and automatic saving function of
multiple seed points. That means when left-clicking on one of the CT slices,
the 3D position of that point will be automatically saved to the code. 

 

I applied ImagePlaneWidget to pick the position of certain clicked point.
The position and intensity value can be shown on the screen. But I have no
idea how to program to save the position to the code. Could you give me a
hand about how to solve this problem?

 

Here is the code of ImagePlaneWidget:

 

  vtkImagePlaneWidget * zImagePlaneWidget =  vtkImagePlaneWidget::New();

 

  zImagePlaneWidget->DisplayTextOn();

  zImagePlaneWidget->SetInput(vtkImporter->GetOutput());

  zImagePlaneWidget->SetPlaneOrientationToZAxes();

  zImagePlaneWidget->SetSliceIndex(size[0]/2);

  zImagePlaneWidget->SetPicker(picker);

  zImagePlaneWidget->RestrictPlaneToVolumeOn();

  zImagePlaneWidget->SetKeyPressActivationValue('y');

  zImagePlaneWidget->GetPlaneProperty()->SetColor(1, 0, 0);

  zImagePlaneWidget->SetTexturePlaneProperty(ipwProp);

  zImagePlaneWidget->SetResliceInterpolateToNearestNeighbour();

 

  zImagePlaneWidget->SetInteractor( iren );

zImagePlaneWidget->On();

 

Thanks very much.

 

Best regards,

Yang

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