[Paraview] Adding/Appending a new array to existing arrays

[David E DeMarle]

I would use the python programmable filter to do it instead. It can't easily
be done from the python shell because that executes on the client side which
is potentially very far away from the data you are trying to append to.

David E DeMarle
Kitware, Inc.
R&D Engineer
28 Corporate Drive
Clifton Park, NY 12065-8662
Phone: 518-371-3971 x109


On Sun, Dec 5, 2010 at 4:00 AM, George <george.gerber at gmail.com> wrote:

> Hi Paraviewers,
>
> Is it possible to add or append a newly created vtkFloatArray to an
> existing set of arrays?
> Please find below my attempt to append/add an array 'p2' to the existing
> arrays 'U','U_0' and 'p'
>
> #~~~~~~~~~~~~~~~~
> from paraview import vtk
> try: paraview.simple
> except: from paraview.simple import *
> paraview.simple._DisableFirstRenderCameraReset()
>
> OpenFOAM = OpenFOAMReader( FileName='C:\\Users\\Public\\30x30x1.OpenFOAM' )
> OpenFOAM.CellArrays = ['U', 'U_0', 'p']
> OpenFOAM.MeshRegions = ['internalMesh']
> MergeBlocks1 = MergeBlocks()
>
> parray=servermanager.Fetch(MergeBlocks1).GetPointData().GetArray('p')
> npts=parray.GetNumberOfTuples()
> p2array = vtk.vtkFloatArray()
> p2array.SetName('p2')
> p2array.SetNumberOfComponents(1)
> p2array.SetNumberOfTuples(npts)
>
> for i in range(npts):
>     p2array.SetValue(i, 999.9)
>
> # Is it possible to add or append the p2array to the 'U','U_0' and 'p'
> arrays?
> # Maybe something like: MergeBlocks1.GetCellData().AddArray(p2array)
> #~~~~~~~~~~~~~~~
> Any help will be greatly appreciated.
>
> Best regards,
> George
>
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