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/selection.py

@@ -0,0 +1,113 @@
+#!/usr/bin/env python
+from vtk import *
+
+source = vtkRandomGraphSource()
+source.DirectedOff()
+source.SetNumberOfVertices(100)
+source.SetEdgeProbability(0) # Basically generates a tree
+source.SetUseEdgeProbability(True)
+source.SetStartWithTree(True)
+source.IncludeEdgeWeightsOn()
+
+# Connect to the Boost centrality filter.
+centrality = vtkBoostBrandesCentrality ()
+centrality.SetInputConnection(source.GetOutputPort())
+
+# Create force directed layout
+forceStrat = vtkSimple2DLayoutStrategy()
+forceStrat.SetInitialTemperature(5)
+
+# Create circular layout
+fastStrat = vtkFast2DLayoutStrategy()
+
+
+# Create a graph layout view
+view = vtkGraphLayoutView()
+view.AddRepresentationFromInputConnection(centrality.GetOutputPort())
+view.SetVertexLabelArrayName("vertex id")
+view.SetVertexLabelVisibility(True)
+view.SetVertexColorArrayName("vertex id")
+view.SetColorVertices(True)
+view.SetEdgeColorArrayName("edge weight")
+view.SetColorEdges(True)
+view.SetLayoutStrategy(forceStrat)
+
+# Create a second shrubery!
+view2 = vtkGraphLayoutView()
+view2.AddRepresentationFromInputConnection(centrality.GetOutputPort())
+view2.SetVertexLabelArrayName("vertex id")
+view2.SetVertexLabelVisibility(True)
+view2.SetVertexColorArrayName("vertex id")
+view2.SetColorVertices(True)
+view2.SetEdgeColorArrayName("centrality")
+view2.SetColorEdges(True)
+view2.SetLayoutStrategy(fastStrat)
+
+# Demonstrate value based selection on edges
+sel = vtkSelectionSource()
+sel.SetContentType(7)               # Thresholds
+sel.SetFieldType(4)                 # Edge
+sel.SetArrayName("centrality")
+sel.AddThreshold(500,5000)          # High centrality edges
+sel.Update()
+
+# Take selection and extract a graph
+extract_graph = vtkExtractSelectedGraph()
+extract_graph.AddInputConnection(centrality.GetOutputPort())
+extract_graph.SetSelectionConnection(sel.GetOutputPort())
+
+# Create a view for the extracted graph
+view3 = vtkGraphLayoutView()
+view3.AddRepresentationFromInputConnection(extract_graph.GetOutputPort())
+view3.SetVertexLabelArrayName("vertex id")
+view3.SetVertexLabelVisibility(True)
+view3.SetVertexColorArrayName("vertex id")
+view3.SetColorVertices(True)
+view3.SetEdgeColorArrayName("centrality")
+view3.SetColorEdges(True)
+view3.SetLayoutStrategyToSimple2D()
+
+# Make sure the views are using a pedigree id selection
+view.GetRepresentation(0).SetSelectionType(2)
+view2.GetRepresentation(0).SetSelectionType(2)
+view3.GetRepresentation(0).SetSelectionType(2)
+
+# Create a selection link and set both view to use it
+annotationLink = vtkAnnotationLink()
+view.GetRepresentation(0).SetAnnotationLink(annotationLink)
+view2.GetRepresentation(0).SetAnnotationLink(annotationLink)
+view3.GetRepresentation(0).SetAnnotationLink(annotationLink)
+annotationLink.SetCurrentSelection(sel.GetOutput())
+
+updater = vtkViewUpdater()
+updater.AddAnnotationLink(annotationLink)
+updater.AddView(view)
+updater.AddView(view2)
+updater.AddView(view3)
+
+# Set the theme on the view
+theme = vtkViewTheme.CreateMellowTheme()
+theme.SetLineWidth(5)
+theme.SetPointSize(10)
+theme.SetCellOpacity(.99)
+theme.SetSelectedCellColor(1,0,1)
+theme.SetSelectedPointColor(1,0,1)
+view.ApplyViewTheme(theme)
+view2.ApplyViewTheme(theme)
+view3.ApplyViewTheme(theme)
+theme.FastDelete()
+
+view.GetRenderWindow().SetSize(600, 600)
+view.ResetCamera()
+view.Render()
+
+view2.GetRenderWindow().SetSize(600, 600)
+view2.ResetCamera()
+view2.Render()
+
+view3.GetRenderWindow().SetSize(600, 600)
+view3.ResetCamera()
+view3.Render()
+
+view.GetInteractor().Start()
+