[Paraview] Use separate arrays for colormap and opacity

[Utkarsh Ayachit]

One option is to use "Python Programmable Filter" to generate an RGBA
array in which you do the color and opacity mapping yourself. You
won't have access to the color and opacity transfer ParaView sets up,
but you can create your own internally. Not the most elegant solution
-- but a solution, nonetheless.

Utkarsh

On Tue, Jun 13, 2017 at 12:24 PM, Evan Kao <tossin at gmail.com> wrote:
> Hello all,
>
> We would like to be able to visualize an object without tying the colormap
> to the same array as the opacity.  Specifically, we would like to animate
> pathlines and color them by velocity, while setting their opacity according
> to particle age.  Is this possible in Paraview?
>
> Thanks,
> Evan Kao
>
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