Is there a way to create a label map node from a segmentation node? I know I can go the other way (from a label map to a segmentation), but I can’t seem to find a way to do the opposite. If this is not possible is there a way to at least get the array underlying the segmentation node? I know I can get an oriented image data, but if I do slicer.util.array on the oriented image data, nothing is returned.
To create a custom Segment Editor effect, use ExtensionWizard module and choose ScriptedSegmentEditorEffect module template. It creates a fully functional effect that uses SimpleITK and you just have to replace the core of it to do what you need.