ParaView-5.0.1: Added the source-tree to ThirdParty-dev and patched as described in the README file

Resolves bug-report http://bugs.openfoam.org/view.php?id=2098

ParaView-5.0.1/VTK/Examples/Infovis/Python/programmable_pipeline.py

@@ -0,0 +1,54 @@
+#!/usr/bin/env python
+from vtk import *
+
+source = vtkRandomGraphSource()
+source.SetNumberOfVertices(75)
+source.SetEdgeProbability(0.02)
+source.SetUseEdgeProbability(True)
+source.SetStartWithTree(True)
+
+create_index = vtkProgrammableFilter()
+create_index.AddInputConnection(source.GetOutputPort())
+
+def create_index_callback():
+  input = create_index.GetInput()
+  output = create_index.GetOutput()
+
+  output.ShallowCopy(input)
+
+  vertex_id_array = vtkIdTypeArray()
+  vertex_id_array.SetName("vertex_id")
+  vertex_id_array.SetNumberOfTuples(output.GetNumberOfVertices())
+  for i in range(output.GetNumberOfVertices()):
+    vertex_id_array.SetValue(i, i)
+  output.GetVertexData().AddArray(vertex_id_array)
+
+  edge_target_array = vtkIdTypeArray()
+  edge_target_array.SetName("edge_target")
+  edge_target_array.SetNumberOfTuples(output.GetNumberOfEdges())
+  edge_iterator = vtkEdgeListIterator()
+  output.GetEdges(edge_iterator)
+  while edge_iterator.HasNext():
+    edge = edge_iterator.NextGraphEdge()
+    edge_target_array.SetValue(edge.GetId(), edge.GetTarget())
+  output.GetEdgeData().AddArray(edge_target_array)
+
+create_index.SetExecuteMethod(create_index_callback)
+
+view = vtkGraphLayoutView()
+view.AddRepresentationFromInputConnection(create_index.GetOutputPort())
+view.SetVertexLabelArrayName("vertex_id")
+view.SetVertexLabelVisibility(True)
+view.SetEdgeLabelArrayName("edge_target")
+view.SetEdgeLabelVisibility(True)
+
+theme = vtkViewTheme.CreateMellowTheme()
+view.ApplyViewTheme(theme)
+theme.FastDelete()
+
+view.GetRenderWindow().SetSize(600, 600)
+view.ResetCamera()
+view.Render()
+
+view.GetInteractor().Start()
+