[Paraview] Get value of a vtkintarray object by the filed name

[David E DeMarle]

Try:

inRArray = ids.GetPointData().GetArray("R")
inGArray = ids.GetPointData().GetArray("G")
inBArray = ids.GetPointData().GetArray("B")  for x in range(0,
ids.GetNumberOfPoints()):
  rF = inRArray.GetValue(x)
  gF = inGArray.GetValue(x)
  bF = inBArray.GetValue(x)


David E DeMarle
Kitware, Inc.
Principal Engineer
21 Corporate Drive
Clifton Park, NY 12065-8662
Phone: 518-881-4909

On Tue, Aug 8, 2017 at 7:08 AM, Shayan Nikoohemat <
shayan.nikoohemat at gmail.com> wrote:

> I have a Paraview programmable filter written in python, that I am
> running on a table of points to assign RGB colors as UnsignedCharArray.
> I'm just stuck in one part of the code to get the value of R, G, B fields
> in the range. Here is the table example:
>
> [image: Inline image 1]
>
> ids = self.GetInput()
> ods = self.GetOutput()
>
> ocolors = vtk.vtkUnsignedCharArray()
> ocolors.SetName("colors")
> ocolors.SetNumberOfComponents(3)
> ocolors.SetNumberOfTuples(ids.GetNumberOfPoints())
>
> inArray = ids.GetPointData().GetArray(0)for x in range(0, ids.GetNumberOfPoints()):
>   rF = inArray.GetValue(x) # here I need something like GetValue(x, "R")
>   gF = inArray.GetValue(x) # here I need something like GetValue(x, "G")
>   bF = inArray.GetValue(x) # here I need something like GetValue(x, "B")
>
>   ocolors.SetTuple3(x, rF,gF,bF)
>
> ods.GetPointData().AddArray(ocolors)
>
> Can anyone help me to fix this.
>
> The code source is from an old post from 2012.
>
> Thanks.
>
> Shayan
>
>
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