[vtkusers] How do I label points in 3d space with arbitrary strings?

[Aron Helser]

FieldData is what you want. Essentially, you add a 'field' to your dataset,
with an entry for each point, that contains the string you want to display.

This example
https://github.com/Kitware/VTK/blob/master/Examples/DataManipulation/Python/Arrays.py
shows one way to add scalar data to a polydata, but I'm not sure it's what
you want - I'm sure there's an appropriate example somewhere :)

HTH,
Aron

On Thu, Jul 5, 2018 at 6:11 AM J. <babybishops at gmail.com> wrote:

> I have some particles moving around in 3d space, and I want to draw labels
> next to them that can display arbitrary data. The behavior in this example
> seems like what I need:
>
>
> https://github.com/Kitware/VTK/blob/master/Examples/Annotation/Python/labeledMesh.py
>
> I tried having a look at vtkLabeledDataMapper, but I don't see any way to
> tell it what to display. It just seems to automatically display...
> coordinates? Or "field data", whatever that is? In any case I couldn't see
> any way to just directly assign strings to point IDs or something like
> that. Is this not the right class for the job? How can I get the behavior
> I'm looking for?
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