[Paraview] Accessing a specific variable in Python Programmable Filter

[Su, Simon M CTR USARMY ARL (US)]

Dave,

thanks
-simon

________________________________
From: David E DeMarle [dave.demarle at kitware.com]
Sent: Friday, May 16, 2014 3:51 PM
To: Su, Simon M CTR USARMY ARL (US)
Cc: paraview at paraview.org
Subject: Re: [Paraview] Accessing a specific variable in Python Programmable Filter

input.GetPointData().GetArray("Colors")



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


On Fri, May 16, 2014 at 3:46 PM, Su, Simon M CTR USARMY ARL (US) <simon.m.su.ctr at mail.mil<mailto:simon.m.su.ctr at mail.mil>> wrote:
Hello,

After staring at http://www.paraview.org/Wiki/Python_Programmable_Filter for a while, the way to access the data for a specific variable name still eludes me. This is the python code from the wiki on Add the Colors variable to a PolyData

=============================

input = self.GetPolyDataInput();
output =  self.GetPolyDataOutput();

colors = vtk.vtkUnsignedCharArray();
colors.SetNumberOfComponents(3);
colors.SetName("Colors");

numPoints = input.GetNumberOfPoints()
for i in range(0, numPoints):
    colors.InsertNextTuple3(255,0,0);

output=input
output.GetPointData().AddArray(colors)

===============================

How do I from the next filter, access the variable name "Colors" that I created?

Any help is much appreciated.

thanks
-simon

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