[Paraview] Scalar components and Python Calculator

[Utkarsh Ayachit]

The data arrays in Python calculator are numpy arrays so simply do
something like follows (barring any typos):

    sqrt( pow(ImageData[:,0], 2), pow(ImageData[:,1], 2) )

Also refer to: http://www.paraview.org/Wiki/ParaView/Users_Guide/Python_Calculator

Utkarsh


On Wed, May 22, 2013 at 5:55 PM, Pettey . Lucas <LPettey at drc.com> wrote:
> Hello,
>
> I am trying to use the Python Calculator on 2 different Scalar components in the same data file.
>
> I have written the real and imaginary parts of a Fortran complex data type to a single ".raw" binary file. ParaView correctly opens this file when I tell it that there are 2 scalar components.
>
> I can use the Calculator to perform calculations on the "X" and "Y" components (the real gets imported by default as ImageData_X and the imaginary as ImageData_Y). An expression in the Calculator filter such as:
>
> sqrt(ImageData_X^2 + ImageData_Y^2)
>
> works fine. The Python Calculator, however, generates an error that ImageData_X and ImageData_Y are not defined.
>
> Both filters are set to Point Data.
>
> Any suggestions?
>
> Thanks
> Lucas
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