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/IO/Image/Testing/Python/TestImageJSONWriter.py

@@ -0,0 +1,66 @@
+#!/usr/bin/env python
+import os, json, sys
+import vtk
+from vtk.test import Testing
+
+args = sys.argv[1:]
+temp_dir = args[args.index("-T") + 1]
+
+# Always use / to prevent windows/python issue with backslash
+tmp_file = temp_dir + '/wavelet_slice_3.json'
+
+expected_first_values = [75.9335, 102.695, 91.2387, 115.507, 105.995, 125.724, 118.773, 132.24, 128.255, 134.254, 133.446, 131.431, 133.843, 123.998, 129.505]
+
+# Image pipeline
+image1 = vtk.vtkRTAnalyticSource()
+image1.Update()
+output = image1.GetOutput()
+dim_ref = [value for value in output.GetDimensions()]
+origin_ref = [value for value in output.GetOrigin()]
+spacing_ref = [value for value in output.GetSpacing()]
+
+print(dim_ref)
+print(origin_ref)
+print(spacing_ref)
+
+writer = vtk.vtkJSONImageWriter()
+writer.SetInputData(image1.GetOutput())
+writer.SetFileName(tmp_file)
+writer.SetArrayName("RTData")
+writer.SetSlice(3)
+writer.Write()
+
+# Try to load JSON file and compare with dumped data
+print("Writing file:", tmp_file)
+json_file = open(tmp_file, "r")
+json_obj = json.load(json_file)
+json_file.close()
+
+slice = json_obj['RTData']
+if json_obj["dimensions"] != dim_ref:
+    print("Dimension ERROR")
+    sys.exit(1)
+else:
+    print("Dimension OK")
+if json_obj["origin"] != origin_ref:
+    print("Origin ERROR")
+    sys.exit(1)
+else:
+    print("Origin OK")
+if json_obj["spacing"] != spacing_ref:
+    print("Spacing ERROR")
+    sys.exit(1)
+else:
+    print("Spacing OK")
+if len(slice) == 441:
+    print("Slice size OK")
+else:
+    print("Slice size ERROR - Size of ", str(len(slice)))
+    sys.exit(1)
+
+for i in range(len(expected_first_values)):
+    if expected_first_values[i] != slice[i]:
+        sys.exit(1)
+
+print("All good...")
+sys.exit()