[Paraview] color discretization of the legend

[Cory Quammen]

ParaView indeed lets you create color maps for your use case, but it's
a tad awkward. One can specify duplicate control points, each with a
different color. This makes it possible to have a sharp transition at
particular values. I have attached an example color map for your use
case. Import it by opening the Color Map Editor and clicking on the
Choose preset tool button (the folder with a heart on it). Then, click
Import in the bottom left corner and load the file.

By the way, we recently transitioned to a discussion forum,
https://discourse.paraview.org. Please use that forum for other
ParaView questions.

Thanks,
CoryOn Mon, Jul 30, 2018 at 5:15 AM Engelen, J. van (Joeri)
<j.vanengelen1 at uu.nl> wrote:
>
> Hi,
>
>
>
> I really like the “Color Discretization” function of Paraview in combination with the automatic annotations, as it gives nice, clean legends. (If “number of table values” < 10)
>
> It is now only possible to use automatic “uniform” discretized values for the color map, so I was wondering: Is it also possible as a user to define specify the bins of the discretized color map?
>
> I cannot find it in the GUI (v5.4.1), but perhaps it is possible with the Python API? (Though I cannot find it though in the online documentation)
>
>
>
> An alternative is binning the data myself beforehand, by adding an extra variable to my NetCDFs, but that increases filesize slightly, hence this e-mail.
>
>
>
> Context:
>
> I work with water salinities as total dissolved solids (TDS g/l). 0 – 1 g/l is drinkable, around 35 g/l is the salinity of seawater and 35 – 100 g/l is considered hypersaline. So my bins are going to be non-uniform.
>
>
>
> Kind regards,
>
> Joeri
>
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--
Cory Quammen
Staff R&D Engineer
Kitware, Inc.
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