How to turn off the visibility of 3D models

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Hello!
Hope you are doing well!
As shown in figure below, I’ve created a ‘Segmentation’ node for ‘MRHead’ which contains two segments: Segment_1(with threshold 50-279), Segment_2(with threshold 80-279).

  1. I imported this segmentation node into the model module using the following code:
shNode = slicer.mrmlScene.GetSubjectHierarchyNode()
exportFolderItemId = shNode.CreateFolderItem(shNode.GetSceneItemID(), 'HEAD')
segmentationNode1 = getNode("Segmentation")
slicer.modules.segmentations.logic().ExportAllSegmentsToModels(segmentationNode1, exportFolderItemId)

But after I run the above code, the models’ visibility of the two segments are turned on by default. How to turn off the visibility of the two segmented models using python separately?

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Figure13
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  1. How to remove a segment in this segmentation node programmatically? For example, how to delete the second segment node(Segment_2)?

Grateful for your help in advance!

2

See how to iterate through the nodes in the subject hierarchy folder in this example.

You can hide a model node by calling modelNode.GetDisplayNode().SetVisibility(False).

It is probably better not to export the node in the first place. You can achieve that by using ExportSegmentsToModels that takes a segment ID list; or hiding the segments you don’t want to export and use ExportVisibleSegmentsToModels.

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