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/Modelling/Python/Delaunay3D.py

@@ -0,0 +1,60 @@
+#!/usr/bin/env python
+
+# This example shows how to use Delaunay3D with alpha shapes.
+
+import vtk
+
+# The points to be triangulated are generated randomly in the unit
+# cube located at the origin. The points are then associated with a
+# vtkPolyData.
+math = vtk.vtkMath()
+points = vtk.vtkPoints()
+for i in range(0, 25):
+    points.InsertPoint(i, math.Random(0, 1), math.Random(0, 1),
+                       math.Random(0, 1))
+
+profile = vtk.vtkPolyData()
+profile.SetPoints(points)
+
+# Delaunay3D is used to triangulate the points. The Tolerance is the
+# distance that nearly coincident points are merged
+# together. (Delaunay does better if points are well spaced.) The
+# alpha value is the radius of circumcircles, circumspheres. Any mesh
+# entity whose circumcircle is smaller than this value is output.
+delny = vtk.vtkDelaunay3D()
+delny.SetInputData(profile)
+delny.SetTolerance(0.01)
+delny.SetAlpha(0.2)
+delny.BoundingTriangulationOff()
+
+# Shrink the result to help see it better.
+shrink = vtk.vtkShrinkFilter()
+shrink.SetInputConnection(delny.GetOutputPort())
+shrink.SetShrinkFactor(0.9)
+
+map = vtk.vtkDataSetMapper()
+map.SetInputConnection(shrink.GetOutputPort())
+
+triangulation = vtk.vtkActor()
+triangulation.SetMapper(map)
+triangulation.GetProperty().SetColor(1, 0, 0)
+
+# Create graphics stuff
+ren = vtk.vtkRenderer()
+renWin = vtk.vtkRenderWindow()
+renWin.AddRenderer(ren)
+iren = vtk.vtkRenderWindowInteractor()
+iren.SetRenderWindow(renWin)
+
+# Add the actors to the renderer, set the background and size
+ren.AddActor(triangulation)
+ren.SetBackground(1, 1, 1)
+renWin.SetSize(250, 250)
+renWin.Render()
+
+cam1 = ren.GetActiveCamera()
+cam1.Zoom(1.5)
+
+iren.Initialize()
+renWin.Render()
+iren.Start()