Script rename vtu point data array

renamePointDataArray.py

+#!/usr/bin/env python39
+
+from vtk import *
+from sys import argv, exit
+
+if len(argv) < 5:
+    print("Usage: " + argv[0] + " input_property_name output_property_name input.vtu output.vtu")
+    exit(1)
+
+input_file = argv[3]
+output_file = argv[4]
+print("Reading from", input_file)
+print("Writing to", output_file)
+
+r = vtkXMLUnstructuredGridReader()
+r.SetFileName(input_file)
+r.Update()
+
+m = r.GetOutput()
+
+point_data = m.GetPointData()
+point_data_array = point_data.GetArray(argv[1])
+point_data_array.SetName(argv[2])
+
+w = vtkXMLUnstructuredGridWriter()
+w.SetFileName(output_file)
+w.SetInputData(m)
+w.SetDataModeToAscii()
+w.SetCompressorTypeToNone()
+w.Update()