Is it possible to update closed surface of a segment instead of removing closed surface when underlying vtkImageData is modified?

Development
1

Hi,

I am trying to modify a segment by modifying the underlying binary label map (an instance of vtkImageData) in C++.

When modified() of vtkImageData is called, the closed surface of the segment is removed automatically.

Is it possible to update closed surface of a segment instead of removing closed surface when underlying vtkImageData is modified?

Thanks in advance,

Best regards,

Vincent

2

If you replace the entire content of the vtkImageData then the application has no idea what has changed, so you need to recreate the closed surface representation. If you use vtkSlicerSegmentEditorLogic::ModifySegmentByLabelmap then modifications will be the minimum necessary.