How to copy one segment from a segmentation node to a different segmentation with code?

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1

I’m trying to copy a segment from one segmentation to another, but I don’t know how to do it automatically in my code. I know that we can drag and drop in the data module, but is there a way to do this with code?

2

A workaround could be to export all the segments of Segmentation1 as LabelMap and import it to Segmentation2, then delete all the undesired segments from Segmentation2

3

yes, that would work but I just wanted to know if I could avoid doing that and just move one segment.

4

Yes, you can copy/move segments between segmentations. You can track down how it is implemented in Slicer core and replicate that in your script.

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5

Do you have an example of the script used to do this?

Thanks in advance.

6

I needed to figure this out myself - for anyone in the future that needs this:

destSeg = getNode("segmentDestination") #the vtkMRMLSegmentationNode you want the target in
sourceSeg = getNode("segmentSource") # the vtkMRMLSegmentationNode that it's coming from
segmentID = "yourDesiredSegID" #the ID of your segment
removeFromSource = False #whether you want to delete the segment from the source
destSeg.GetSegmentation().CopySegmentFromSegmentation(sourceSeg.GetSegmentation(),segmentID,removeFromSource)