I am using Paraview with the Python Shell and I want to modify some coordinates. The considered data is opened using a reader, the new coordinates are saved just as txt. I obtain the grid from the reader by using the Fetch()-routine and then modify it -- but my question is: can I somehow "return" the now changed grid to the reader-object and then Show() it?
Here is the code used so far:
from paraview import simple
from paraview.vtk import *
import numpy as np
reader=simple.LSDynaReader(FileName='/home/test.d3plot')
reader.UpdatePipeline()
simple.Show(reader)
coord=np.loadtxt('/home/coord.dat')
pts=vtkPoints()
arr=vtkFloatArray()
arr.SetNumberOfComponents(3)
arr.SetVoidArray(coord,14766*3,1)
ug=vtkUnstructuredGrid()
#the data to be modified is a vtkUnstrucuredGrid in a vtkMultiBlockDataset
ug.ShallowCopy(simple.servermanager.Fetch(reader).GetBlock(84))
pts.SetData(arr)
ug.SetPoints(pts)
How can I make the changes visible now? Any help would be appreciated!