[vtkusers] Storing Metadata with VTK objects

[David Gobbi]

Yes, you can store any kind of array in the FieldData, and you can give
each array any name that you want.

On Tue, Jun 27, 2017 at 2:49 PM, Donny Zimmerman <zmanvortex at gmail.com>
wrote:

> Thanks David! That was exactly what I was looking for. Can I store a
> string array into FieldData?
>
> On Tue, Jun 27, 2017 at 3:17 PM, David Gobbi <david.gobbi at gmail.com>
> wrote:
>
>> 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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