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SegmentationWidgetsTest1.py
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/
SegmentationWidgetsTest1.py
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import logging
import qt
import vtk
import slicer
from slicer.ScriptedLoadableModule import *
class SegmentationWidgetsTest1(ScriptedLoadableModuleTest):
def setUp(self):
""" Do whatever is needed to reset the state - typically a scene clear will be enough.
"""
slicer.mrmlScene.Clear(0)
def runTest(self):
"""Run as few or as many tests as needed here.
"""
self.setUp()
self.test_SegmentationWidgetsTest1()
# ------------------------------------------------------------------------------
def test_SegmentationWidgetsTest1(self):
# Check for modules
self.assertIsNotNone(slicer.modules.segmentations)
self.TestSection_00_SetupPathsAndNames()
self.TestSection_01_GenerateInputData()
self.TestSection_02_qMRMLSegmentsTableView()
self.TestSection_03_qMRMLSegmentationGeometryWidget()
self.TestSection_04_qMRMLSegmentEditorWidget()
logging.info('Test finished')
# ------------------------------------------------------------------------------
def TestSection_00_SetupPathsAndNames(self):
logging.info('Test section 0: SetupPathsAndNames')
self.inputSegmentationNode = None
# ------------------------------------------------------------------------------
def TestSection_01_GenerateInputData(self):
logging.info('Test section 1: GenerateInputData')
self.inputSegmentationNode = slicer.mrmlScene.AddNewNodeByClass('vtkMRMLSegmentationNode')
# Create new segments
import random
for segmentName in ['first', 'second', 'third']:
sphereSegment = slicer.vtkSegment()
sphereSegment.SetName(segmentName)
sphereSegment.SetColor(random.uniform(0.0, 1.0), random.uniform(0.0, 1.0), random.uniform(0.0, 1.0))
sphere = vtk.vtkSphereSource()
sphere.SetCenter(random.uniform(0, 100), random.uniform(0, 100), random.uniform(0, 100))
sphere.SetRadius(random.uniform(20, 30))
sphere.Update()
spherePolyData = sphere.GetOutput()
sphereSegment.AddRepresentation(
slicer.vtkSegmentationConverter.GetSegmentationClosedSurfaceRepresentationName(),
spherePolyData)
self.inputSegmentationNode.GetSegmentation().AddSegment(sphereSegment)
self.assertEqual(self.inputSegmentationNode.GetSegmentation().GetNumberOfSegments(), 3)
self.inputSegmentationNode.CreateDefaultDisplayNodes()
displayNode = self.inputSegmentationNode.GetDisplayNode()
self.assertIsNotNone(displayNode)
# ------------------------------------------------------------------------------
def TestSection_02_qMRMLSegmentsTableView(self):
logging.info('Test section 2: qMRMLSegmentsTableView')
displayNode = self.inputSegmentationNode.GetDisplayNode()
self.assertIsNotNone(displayNode)
segmentsTableView = slicer.qMRMLSegmentsTableView()
segmentsTableView.setMRMLScene(slicer.mrmlScene)
segmentsTableView.setSegmentationNode(self.inputSegmentationNode)
self.assertEqual(len(segmentsTableView.displayedSegmentIDs()), 3)
segmentsTableView.show()
slicer.app.processEvents()
slicer.util.delayDisplay("All shown")
segmentsTableView.setHideSegments(['second'])
self.assertEqual(len(segmentsTableView.displayedSegmentIDs()), 2)
slicer.app.processEvents()
slicer.util.delayDisplay("Hidden 'second'")
segmentsTableView.setHideSegments([])
segmentsTableView.filterBarVisible = True
segmentsTableView.textFilter = "third"
self.assertEqual(len(segmentsTableView.displayedSegmentIDs()), 1)
slicer.app.processEvents()
slicer.util.delayDisplay("All but 'third' filtered")
segmentsTableView.textFilter = ""
firstSegment = self.inputSegmentationNode.GetSegmentation().GetSegment("first")
logic = slicer.modules.segmentations.logic()
logic.SetSegmentStatus(firstSegment, logic.InProgress)
sortFilterProxyModel = segmentsTableView.sortFilterProxyModel()
sortFilterProxyModel.setShowStatus(logic.NotStarted, True)
self.assertEqual(len(segmentsTableView.displayedSegmentIDs()), 2)
slicer.app.processEvents()
slicer.util.delayDisplay("'NotStarted' shown")
segmentsTableView.setSelectedSegmentIDs(["third"])
segmentsTableView.setHideSegments(['second'])
segmentsTableView.showOnlySelectedSegments()
self.assertEqual(displayNode.GetSegmentVisibility("first"), False)
self.assertEqual(displayNode.GetSegmentVisibility("second"), True)
self.assertEqual(displayNode.GetSegmentVisibility("third"), True)
slicer.app.processEvents()
slicer.util.delayDisplay("Show only selected segments")
displayNode.SetSegmentVisibility("first", True)
displayNode.SetSegmentVisibility("second", True)
displayNode.SetSegmentVisibility("third", True)
segmentsTableView.filterBarVisible = False
# Reset the filtering parameters in the segmentation node to avoid interference with other tests that
# use this segmentation node
self.inputSegmentationNode.SetSegmentListFilterEnabled(False)
self.inputSegmentationNode.SetSegmentListFilterOptions("")
# ------------------------------------------------------------------------------
def compareOutputGeometry(self, orientedImageData, spacing, origin, directions):
if orientedImageData is None:
logging.error('Invalid input oriented image data')
return False
if (not isinstance(spacing, list) and not isinstance(spacing, tuple)) \
or (not isinstance(origin, list) and not isinstance(origin, tuple)) \
or not isinstance(directions, list):
logging.error('Invalid baseline object types - need lists')
return False
if len(spacing) != 3 or len(origin) != 3 or len(directions) != 3 \
or len(directions[0]) != 3 or len(directions[1]) != 3 or len(directions[2]) != 3:
logging.error('Baseline lists need to contain 3 elements each, the directions 3 lists of 3')
return False
import numpy
tolerance = 0.0001
actualSpacing = orientedImageData.GetSpacing()
actualOrigin = orientedImageData.GetOrigin()
actualDirections = [[0] * 3, [0] * 3, [0] * 3]
orientedImageData.GetDirections(actualDirections)
for i in [0, 1, 2]:
if not numpy.isclose(spacing[i], actualSpacing[i], tolerance):
logging.warning('Spacing discrepancy: ' + str(spacing) + ' != ' + str(actualSpacing))
return False
if not numpy.isclose(origin[i], actualOrigin[i], tolerance):
logging.warning('Origin discrepancy: ' + str(origin) + ' != ' + str(actualOrigin))
return False
for j in [0, 1, 2]:
if not numpy.isclose(directions[i][j], actualDirections[i][j], tolerance):
logging.warning('Directions discrepancy: ' + str(directions) + ' != ' + str(actualDirections))
return False
return True
# ------------------------------------------------------------------------------
def getForegroundVoxelCount(self, imageData):
if imageData is None:
logging.error('Invalid input image data')
return False
imageAccumulate = vtk.vtkImageAccumulate()
imageAccumulate.SetInputData(imageData)
imageAccumulate.SetIgnoreZero(1)
imageAccumulate.Update()
return imageAccumulate.GetVoxelCount()
# ------------------------------------------------------------------------------
def TestSection_03_qMRMLSegmentationGeometryWidget(self):
logging.info('Test section 2: qMRMLSegmentationGeometryWidget')
binaryLabelmapReprName = slicer.vtkSegmentationConverter.GetBinaryLabelmapRepresentationName()
closedSurfaceReprName = slicer.vtkSegmentationConverter.GetClosedSurfaceRepresentationName()
# Use MRHead and Tinypatient for testing
import SampleData
mrVolumeNode = SampleData.downloadSample("MRHead")
[tinyVolumeNode, tinySegmentationNode] = SampleData.downloadSamples('TinyPatient')
# Convert MRHead to oriented image data
import vtkSlicerSegmentationsModuleLogicPython as vtkSlicerSegmentationsModuleLogic
mrOrientedImageData = vtkSlicerSegmentationsModuleLogic.vtkSlicerSegmentationsModuleLogic.CreateOrientedImageDataFromVolumeNode(mrVolumeNode)
mrOrientedImageData.UnRegister(None)
# Create segmentation node with binary labelmap master and one segment with MRHead geometry
segmentationNode = slicer.mrmlScene.AddNewNodeByClass('vtkMRMLSegmentationNode')
segmentationNode.GetSegmentation().SetSourceRepresentationName(binaryLabelmapReprName)
geometryStr = slicer.vtkSegmentationConverter.SerializeImageGeometry(mrOrientedImageData)
segmentationNode.GetSegmentation().SetConversionParameter(
slicer.vtkSegmentationConverter.GetReferenceImageGeometryParameterName(), geometryStr)
threshold = vtk.vtkImageThreshold()
threshold.SetInputData(mrOrientedImageData)
threshold.ThresholdByUpper(16.0)
threshold.SetInValue(1)
threshold.SetOutValue(0)
threshold.SetOutputScalarType(vtk.VTK_UNSIGNED_CHAR)
threshold.Update()
segmentOrientedImageData = slicer.vtkOrientedImageData()
segmentOrientedImageData.DeepCopy(threshold.GetOutput())
mrImageToWorldMatrix = vtk.vtkMatrix4x4()
mrOrientedImageData.GetImageToWorldMatrix(mrImageToWorldMatrix)
segmentOrientedImageData.SetImageToWorldMatrix(mrImageToWorldMatrix)
segment = slicer.vtkSegment()
segment.SetName('Brain')
segment.SetColor(0.0, 0.0, 1.0)
segment.AddRepresentation(binaryLabelmapReprName, segmentOrientedImageData)
segmentationNode.GetSegmentation().AddSegment(segment)
# Create geometry widget
geometryWidget = slicer.qMRMLSegmentationGeometryWidget()
geometryWidget.setSegmentationNode(segmentationNode)
geometryWidget.editEnabled = True
geometryImageData = slicer.vtkOrientedImageData() # To contain the output later
# Volume source with no transforms
geometryWidget.setSourceNode(tinyVolumeNode)
geometryWidget.geometryImageData(geometryImageData)
self.assertTrue(self.compareOutputGeometry(geometryImageData,
(49, 49, 23), (248.8439, 248.2890, -123.75),
[[-1.0, 0.0, 0.0], [0.0, -1.0, 0.0], [0.0, 0.0, 1.0]]))
slicer.vtkOrientedImageDataResample.ResampleOrientedImageToReferenceOrientedImage(
segmentOrientedImageData, geometryImageData, geometryImageData, False, True)
self.assertEqual(self.getForegroundVoxelCount(geometryImageData), 92)
# Transformed volume source
translationTransformMatrix = vtk.vtkMatrix4x4()
translationTransformMatrix.SetElement(0, 3, 24.5)
translationTransformMatrix.SetElement(1, 3, 24.5)
translationTransformMatrix.SetElement(2, 3, 11.5)
translationTransformNode = slicer.vtkMRMLLinearTransformNode()
translationTransformNode.SetName('TestTranslation')
slicer.mrmlScene.AddNode(translationTransformNode)
translationTransformNode.SetMatrixTransformToParent(translationTransformMatrix)
tinyVolumeNode.SetAndObserveTransformNodeID(translationTransformNode.GetID())
geometryWidget.geometryImageData(geometryImageData)
self.assertTrue(self.compareOutputGeometry(geometryImageData,
(49, 49, 23), (273.3439, 272.7890, -112.25),
[[-1.0, 0.0, 0.0], [0.0, -1.0, 0.0], [0.0, 0.0, 1.0]]))
slicer.vtkOrientedImageDataResample.ResampleOrientedImageToReferenceOrientedImage(
segmentOrientedImageData, geometryImageData, geometryImageData, False, True)
self.assertEqual(self.getForegroundVoxelCount(geometryImageData), 94)
# Volume source with isotropic spacing
tinyVolumeNode.SetAndObserveTransformNodeID(None)
geometryWidget.setIsotropicSpacing(True)
geometryWidget.geometryImageData(geometryImageData)
self.assertTrue(self.compareOutputGeometry(geometryImageData,
(23, 23, 23), (248.8439, 248.2890, -123.75),
[[-1.0, 0.0, 0.0], [0.0, -1.0, 0.0], [0.0, 0.0, 1.0]]))
slicer.vtkOrientedImageDataResample.ResampleOrientedImageToReferenceOrientedImage(
segmentOrientedImageData, geometryImageData, geometryImageData, False, True)
self.assertEqual(self.getForegroundVoxelCount(geometryImageData), 414)
# Volume source with oversampling
geometryWidget.setIsotropicSpacing(False)
geometryWidget.setOversamplingFactor(2.0)
geometryWidget.geometryImageData(geometryImageData)
self.assertTrue(self.compareOutputGeometry(geometryImageData,
(24.5, 24.5, 11.5), (261.0939, 260.5390, -129.5),
[[-1.0, 0.0, 0.0], [0.0, -1.0, 0.0], [0.0, 0.0, 1.0]]))
slicer.vtkOrientedImageDataResample.ResampleOrientedImageToReferenceOrientedImage(
segmentOrientedImageData, geometryImageData, geometryImageData, False, True)
self.assertEqual(self.getForegroundVoxelCount(geometryImageData), 751)
slicer.util.delayDisplay('Volume source cases - OK')
# Segmentation source with binary labelmap master
geometryWidget.setOversamplingFactor(1.0)
geometryWidget.setSourceNode(tinySegmentationNode)
geometryWidget.geometryImageData(geometryImageData)
self.assertTrue(self.compareOutputGeometry(geometryImageData,
(49, 49, 23), (248.8439, 248.2890, -123.75),
[[-1.0, 0.0, 0.0], [0.0, -1.0, 0.0], [0.0, 0.0, 1.0]]))
slicer.vtkOrientedImageDataResample.ResampleOrientedImageToReferenceOrientedImage(
segmentOrientedImageData, geometryImageData, geometryImageData, False, True)
self.assertEqual(self.getForegroundVoxelCount(geometryImageData), 92)
# Segmentation source with closed surface master
tinySegmentationNode.GetSegmentation().SetConversionParameter('Smoothing factor', '0.0')
self.assertTrue(tinySegmentationNode.GetSegmentation().CreateRepresentation(closedSurfaceReprName))
tinySegmentationNode.GetSegmentation().SetSourceRepresentationName(closedSurfaceReprName)
tinySegmentationNode.Modified() # Trigger re-calculation of geometry (only generic Modified event is observed)
geometryWidget.geometryImageData(geometryImageData)
self.assertTrue(self.compareOutputGeometry(geometryImageData,
(1, 1, 1), (-86.645, 133.929, 116.786), # current origin of the segmentation is kept
[[0.0, 0.0, 1.0], [-1.0, 0.0, 0.0], [0.0, -1.0, 0.0]]))
slicer.vtkOrientedImageDataResample.ResampleOrientedImageToReferenceOrientedImage(
segmentOrientedImageData, geometryImageData, geometryImageData, False, True)
self.assertEqual(self.getForegroundVoxelCount(geometryImageData), 5223040)
slicer.util.delayDisplay('Segmentation source cases - OK')
# Model source with no transform
shNode = slicer.vtkMRMLSubjectHierarchyNode.GetSubjectHierarchyNode(slicer.mrmlScene)
outputFolderId = shNode.CreateFolderItem(shNode.GetSceneItemID(), 'ModelsFolder')
success = vtkSlicerSegmentationsModuleLogic.vtkSlicerSegmentationsModuleLogic.ExportVisibleSegmentsToModels(
tinySegmentationNode, outputFolderId)
self.assertTrue(success)
modelNode = slicer.util.getNode('Body_Contour')
geometryWidget.setSourceNode(modelNode)
geometryWidget.geometryImageData(geometryImageData)
self.assertTrue(self.compareOutputGeometry(geometryImageData,
(1, 1, 1), (-86.645, 133.929, 116.786), # current origin of the segmentation is kept
[[0.0, 0.0, 1.0], [-1.0, 0.0, 0.0], [0.0, -1.0, 0.0]]))
slicer.vtkOrientedImageDataResample.ResampleOrientedImageToReferenceOrientedImage(
segmentOrientedImageData, geometryImageData, geometryImageData, False, True)
self.assertEqual(self.getForegroundVoxelCount(geometryImageData), 5223040)
slicer.util.delayDisplay('Model source - OK')
# Transformed model source
rotationTransform = vtk.vtkTransform()
rotationTransform.RotateX(45)
rotationTransformMatrix = vtk.vtkMatrix4x4()
rotationTransform.GetMatrix(rotationTransformMatrix)
rotationTransformNode = slicer.vtkMRMLLinearTransformNode()
rotationTransformNode.SetName('TestRotation')
slicer.mrmlScene.AddNode(rotationTransformNode)
rotationTransformNode.SetMatrixTransformToParent(rotationTransformMatrix)
modelNode.SetAndObserveTransformNodeID(rotationTransformNode.GetID())
modelNode.Modified()
geometryWidget.geometryImageData(geometryImageData)
self.assertTrue(self.compareOutputGeometry(geometryImageData,
(1, 1, 1), (-86.645, 177.282, -12.122),
[[0.0, 0.0, 1.0], [-0.7071, -0.7071, 0.0], [0.7071, -0.7071, 0.0]]))
slicer.vtkOrientedImageDataResample.ResampleOrientedImageToReferenceOrientedImage(
segmentOrientedImageData, geometryImageData, geometryImageData, False, True)
self.assertEqual(self.getForegroundVoxelCount(geometryImageData), 5229164)
slicer.util.delayDisplay('Transformed model source - OK')
# ROI source
roiNode = slicer.mrmlScene.AddNewNodeByClass("vtkMRMLMarkupsROINode", 'SourceROI')
rasDimensions = [0.0, 0.0, 0.0]
rasCenter = [0.0, 0.0, 0.0]
slicer.vtkMRMLSliceLogic.GetVolumeRASBox(tinyVolumeNode, rasDimensions, rasCenter)
print(f"rasDimensions={rasDimensions}, rasCenter={rasCenter}")
rasRadius = [x / 2.0 for x in rasDimensions]
roiNode.SetCenter(rasCenter)
roiNode.SetRadiusXYZ(rasRadius)
geometryWidget.setSourceNode(roiNode)
geometryWidget.geometryImageData(geometryImageData)
print(f"geometryImageData: {geometryImageData}")
self.assertTrue(self.compareOutputGeometry(geometryImageData,
(1, 1, 1), (28.344, 27.789, -20.25),
[[1.0, 0.0, 0.0], [0.0, 1.0, 0.0], [0.0, 0.0, 1.0]]))
slicer.vtkOrientedImageDataResample.ResampleOrientedImageToReferenceOrientedImage(
segmentOrientedImageData, geometryImageData, geometryImageData, False, True)
self.assertEqual(self.getForegroundVoxelCount(geometryImageData), 5223040)
slicer.util.delayDisplay('ROI source - OK')
slicer.util.delayDisplay('Segmentation geometry widget test passed')
# ------------------------------------------------------------------------------
def TestSection_04_qMRMLSegmentEditorWidget(self):
logging.info('Test section 4: qMRMLSegmentEditorWidget')
self.segmentEditorNode = slicer.mrmlScene.AddNewNodeByClass('vtkMRMLSegmentEditorNode')
self.assertIsNotNone(self.segmentEditorNode)
self.inputSegmentationNode.SetSegmentListFilterEnabled(False)
self.inputSegmentationNode.SetSegmentListFilterOptions("")
displayNode = self.inputSegmentationNode.GetDisplayNode()
self.assertIsNotNone(displayNode)
segmentEditorWidget = slicer.qMRMLSegmentEditorWidget()
segmentEditorWidget.setMRMLSegmentEditorNode(self.segmentEditorNode)
segmentEditorWidget.setMRMLScene(slicer.mrmlScene)
segmentEditorWidget.setSegmentationNode(self.inputSegmentationNode)
segmentEditorWidget.installKeyboardShortcuts(segmentEditorWidget)
segmentEditorWidget.setFocus(qt.Qt.OtherFocusReason)
segmentEditorWidget.show()
self.segmentEditorNode.SetSelectedSegmentID('first')
self.assertEqual(self.segmentEditorNode.GetSelectedSegmentID(), 'first')
slicer.app.processEvents()
slicer.util.delayDisplay("First selected")
segmentEditorWidget.selectNextSegment()
self.assertEqual(self.segmentEditorNode.GetSelectedSegmentID(), 'second')
slicer.app.processEvents()
slicer.util.delayDisplay("Next segment")
segmentEditorWidget.selectPreviousSegment()
self.assertEqual(self.segmentEditorNode.GetSelectedSegmentID(), 'first')
slicer.app.processEvents()
slicer.util.delayDisplay("Previous segment")
displayNode.SetSegmentVisibility('second', False)
segmentEditorWidget.selectNextSegment()
self.assertEqual(self.segmentEditorNode.GetSelectedSegmentID(), 'third')
slicer.app.processEvents()
slicer.util.delayDisplay("Next segment (with second segment hidden)")
# Trying to go out of bounds past first segment
segmentEditorWidget.selectPreviousSegment() # First
self.assertEqual(self.segmentEditorNode.GetSelectedSegmentID(), 'first')
segmentEditorWidget.selectPreviousSegment() # First
self.assertEqual(self.segmentEditorNode.GetSelectedSegmentID(), 'first')
segmentEditorWidget.selectPreviousSegment() # First
self.assertEqual(self.segmentEditorNode.GetSelectedSegmentID(), 'first')
slicer.app.processEvents()
slicer.util.delayDisplay("Multiple previous segment")
# Wrap around
self.segmentEditorNode.SetSelectedSegmentID('third')
segmentEditorWidget.selectNextSegment()
self.assertEqual(self.segmentEditorNode.GetSelectedSegmentID(), 'first')
slicer.util.delayDisplay("Wrap around segments")