def calculateFiducialDistance(self, modelNode, fiducial):
closestFiducial = slicer.util.getNode('CP')
if not closestFiducial:
closestFiducial = slicer.vtkMRMLMarkupsFiducialNode()
closestFiducial.SetName('CP')
closestFiducial.AddFiducial(0, 0, 0)
closestFiducial.SetNthFiducialLabel(0, 'CP')
slicer.mrmlScene.AddNode(closestFiducial)
closestFiducial.SetDisplayVisibility(False)
line = slicer.util.getNode('Line')
if not line:
line = slicer.vtkMRMLModelNode()
line.SetName('Line')
linePolyData = vtk.vtkPolyData()
line.SetAndObservePolyData(linePolyData)
modelDisplay = slicer.vtkMRMLModelDisplayNode()
modelDisplay.SetSliceIntersectionVisibility(True)
modelDisplay.SetColor(0,1,0)
slicer.mrmlScene.AddNode(modelDisplay)
line.SetAndObserveDisplayNodeID(modelDisplay.GetID())
slicer.mrmlScene.AddNode(line)
cellLocator = vtk.vtkCellLocator()
cellLocator.SetDataSet(modelNode.GetPolyData())
cellLocator.BuildLocator()
if fiducial.GetNumberOfFiducials() > 0:
ras = [0.0, 0.0, 0.0]
closestPoint = [0.0, 0.0, 0.0]
fiducial.GetNthFiducialPosition(0, ras)
distanceSquared = vtk.mutable(0.0)
subId = vtk.mutable(0)
cellId = vtk.mutable(0)
cell = vtk.vtkGenericCell()
cellLocator.FindClosestPoint(ras, closestPoint, cell, cellId, subId, distanceSquared);
distance = math.sqrt(distanceSquared)
closestFiducial.SetNthFiducialPosition(0, closestPoint[0], closestPoint[1], closestPoint[2])
closestFiducial.SetDisplayVisibility(True)
self.drawLineBetweenPoints(line, ras, closestPoint)
self.set3dViewConernerAnnotation('Distance = ' + "%.2f" % distance + 'mm')
else:
logging.warning('No fiducials in list!')
def calculateDistance(self):
point = [0.0,0.0,0.0]
closestPoint = [0.0, 0.0, 0.0]
m = vtk.vtkMatrix4x4()
self.toolTipToTool.GetMatrixTransformToWorld(m)
point[0] = m.GetElement(0, 3)
point[1] = m.GetElement(1, 3)
point[2] = m.GetElement(2, 3)
distanceSquared = vtk.mutable(0.0)
subId = vtk.mutable(0)
cellId = vtk.mutable(0)
cell = vtk.vtkGenericCell()
self.cellLocator.FindClosestPoint(point, closestPoint, cell, cellId, subId, distanceSquared);
distance = math.sqrt(distanceSquared)
self.closestFiducial.SetNthFiducialPosition(0, closestPoint[0], closestPoint[1], closestPoint[2])
self.closestFiducial.SetDisplayVisibility(True)
self.drawLineBetweenPoints(point, closestPoint)
self.tipFiducial.SetNthFiducialLabel(0, ' %.0f' % distance + 'mm')
