Issue with "INTERSECT" segment editor effect programming (others are fine)

[nrex45]

Hello All,

I’ve been working witht the segmentEditor Widget based on the code examples on the dev site and have been referencing the info here: Segment editor — 3D Slicer documentation

But for whatever reason I cannot get the “INTERSECT” option to work. I am able to get every other option (COPY, UNION, SUBTRACT, INVERT, CLEAR, FILL) to work properly, but when I choose INTERSECT it simply returns the first segment I pass, and not the overlap between the two.

My code can be found below… Has anybody been able to get INTERSECT to work properly?

segmentEditorWidget = slicer.qMRMLSegmentEditorWidget()
    segmentEditorWidget.setMRMLScene(slicer.mrmlScene)
    segmentEditorNode = slicer.mrmlScene.AddNewNodeByClass("vtkMRMLSegmentEditorNode")
    segmentEditorWidget.setMRMLSegmentEditorNode(segmentEditorNode)
    
    segmentEditorWidget.setSegmentationNode(segmentationNodeNew)
    segmentEditorWidget.setActiveEffectByName("Logical operators")
    
    effect = segmentEditorWidget.activeEffect()
    effect.self().scriptedEffect.setParameter("Operation","UNION")
    selectedSegmentID = effect.self().scriptedEffect.parameterSetNode().GetSelectedSegmentID()
    effect.self().scriptedEffect.setParameter("BypassMasking", 1)
    effect.self().scriptedEffect.setParameter("ModifierSegmentID",segmentationNodeNew.GetSegmentation().GetNthSegmentID(1))
    effect.self().onApply()

[lassoan (Andras Lasso)]

This code snippet works well for me on Slicer-5.2.1:

segmentEditorWidget = slicer.modules.segmenteditor.widgetRepresentation().self().editor
segmentEditorWidget.setActiveEffectByName("Logical operators")
effect = segmentEditorWidget.activeEffect()
effect.self().scriptedEffect.setParameter("Operation","INTERSECT")
effect.self().scriptedEffect.setParameter("BypassMasking", "1")
effect.self().scriptedEffect.setParameter("ModifierSegmentID","Segment_2")
effect.self().onApply()