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/GUI/Python/ImplicitPlaneWidget.py

@@ -0,0 +1,80 @@
+#!/usr/bin/env python
+
+# This example demonstrates how to use the vtkPlaneWidget to probe a
+# dataset and then generate contours on the probed data.
+
+import vtk
+
+# Create a mace out of filters.
+sphere = vtk.vtkSphereSource()
+cone = vtk.vtkConeSource()
+glyph = vtk.vtkGlyph3D()
+glyph.SetInputConnection(sphere.GetOutputPort())
+glyph.SetSourceConnection(cone.GetOutputPort())
+glyph.SetVectorModeToUseNormal()
+glyph.SetScaleModeToScaleByVector()
+glyph.SetScaleFactor(0.25)
+
+# The sphere and spikes are appended into a single polydata.
+# This just makes things simpler to manage.
+apd = vtk.vtkAppendPolyData()
+apd.AddInputConnection(glyph.GetOutputPort())
+apd.AddInputConnection(sphere.GetOutputPort())
+
+maceMapper = vtk.vtkPolyDataMapper()
+maceMapper.SetInputConnection(apd.GetOutputPort())
+
+maceActor = vtk.vtkLODActor()
+maceActor.SetMapper(maceMapper)
+maceActor.VisibilityOn()
+
+# This portion of the code clips the mace with the vtkPlanes
+# implicit function. The clipped region is colored green.
+plane = vtk.vtkPlane()
+clipper = vtk.vtkClipPolyData()
+clipper.SetInputConnection(apd.GetOutputPort())
+clipper.SetClipFunction(plane)
+clipper.InsideOutOn()
+
+selectMapper = vtk.vtkPolyDataMapper()
+selectMapper.SetInputConnection(clipper.GetOutputPort())
+
+selectActor = vtk.vtkLODActor()
+selectActor.SetMapper(selectMapper)
+selectActor.GetProperty().SetColor(0, 1, 0)
+selectActor.VisibilityOff()
+selectActor.SetScale(1.01, 1.01, 1.01)
+
+# Create the RenderWindow, Renderer and both Actors
+ren = vtk.vtkRenderer()
+renWin = vtk.vtkRenderWindow()
+renWin.AddRenderer(ren)
+iren = vtk.vtkRenderWindowInteractor()
+iren.SetRenderWindow(renWin)
+
+# The callback function
+def myCallback(obj, event):
+    global plane, selectActor
+    obj.GetPlane(plane)
+    selectActor.VisibilityOn()
+
+# Associate the line widget with the interactor
+planeWidget = vtk.vtkImplicitPlaneWidget()
+planeWidget.SetInteractor(iren)
+planeWidget.SetPlaceFactor(1.25)
+planeWidget.SetInputConnection(glyph.GetOutputPort())
+planeWidget.PlaceWidget()
+planeWidget.AddObserver("InteractionEvent", myCallback)
+
+ren.AddActor(maceActor)
+ren.AddActor(selectActor)
+
+# Add the actors to the renderer, set the background and size
+ren.SetBackground(1, 1, 1)
+renWin.SetSize(300, 300)
+ren.SetBackground(0.1, 0.2, 0.4)
+
+# Start interaction.
+iren.Initialize()
+renWin.Render()
+iren.Start()