[vtkusers] Storing Metadata with VTK objects

[David Gobbi]

Hi Donny,

The usual way of doing this is by adding FieldData arrays to the VTK data
objects:
http://www.vtk.org/Wiki/VTK/Examples/Cxx/PolyData/FieldData

The field data can be retrieved from the data object during a pick.

 - David


On Tue, Jun 27, 2017 at 1:56 PM, Donny Zimmerman <zmanvortex at gmail.com>
wrote:

> I have tried asking this question before without response so i am going to
> try to explain one of my use cases in hopes of clarifying the question.
>
> I have vtkactors that are polyline and/or polygon objects that I am
> rendering. These polyline/polygons represent National Weather Service watch
> and warning areas. I would like to allow the user to pick a polygon and I
> will pop up a window with the watch/warning information text. I need a way
> to store some kind of ID with the actor so that when it is picked I am able
> to look up the correct informative text from my database. I am struggling
> with finding a way to store some kind of metadata with the vtkactor that
> can be referenced when picked. Any help would be appreciated.
>
> Thanks.
>
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