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#!/usr/bin/env python
from vtk import *
source = vtkRandomGraphSource()
source.SetNumberOfVertices(15)
source.SetStartWithTree(True)
source.SetIncludeEdgeWeights(True)
bfs = vtkBoostBreadthFirstSearch()
bfs.AddInputConnection(source.GetOutputPort())
bfs.SetOriginVertex(0)
view = vtkGraphLayoutView()
view.AddRepresentationFromInputConnection(bfs.GetOutputPort())
view.SetVertexLabelArrayName("BFS")
view.SetVertexLabelVisibility(True)
view.SetVertexColorArrayName("BFS")
view.SetColorVertices(True)
view.SetEdgeColorArrayName("edge weight")
view.SetColorEdges(True)
view.SetLayoutStrategyToSimple2D()
view.SetVertexLabelFontSize(20)
theme = vtkViewTheme.CreateNeonTheme()
theme.SetLineWidth(5)
theme.SetPointSize(10)
view.ApplyViewTheme(theme)
theme.FastDelete()
view.GetRenderWindow().SetSize(600, 600)
view.ResetCamera()
view.Render()
view.GetInteractor().Start()
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