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#!/usr/bin/env python
from vtk import *
csv_source = vtkDelimitedTextReader()
csv_source.SetFieldDelimiterCharacters(",")
csv_source.SetHaveHeaders(True)
csv_source.SetDetectNumericColumns(True)
csv_source.SetFileName("authors.csv")
graph = vtkTableToGraph()
graph.AddInputConnection(csv_source.GetOutputPort())
graph.AddLinkVertex("Author", "Name", False)
graph.AddLinkVertex("Employer", "Company", False)
graph.AddLinkEdge("Author", "Employer")
view = vtkGraphLayoutView()
view.AddRepresentationFromInputConnection(graph.GetOutputPort())
view.SetVertexLabelArrayName("label")
view.SetVertexLabelVisibility(True)
view.SetVertexColorArrayName("ids")
view.SetColorVertices(True)
view.SetLayoutStrategyToFast2D()
theme = vtkViewTheme.CreateMellowTheme()
theme.SetCellColor(.2,.2,.6)
theme.SetLineWidth(5)
theme.SetPointSize(10)
view.ApplyViewTheme(theme)
view.SetVertexLabelFontSize(20)
theme.FastDelete()
view.GetRenderWindow().SetSize(600, 600)
view.ResetCamera()
view.Render()
view.GetInteractor().Start()
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