[vtkusers] What is the best way to pass additional data to downstream?

Bill Lorensen bill.lorensen at gmail.com
Tue Dec 5 05:57:15 EST 2017

You can use vtkFieldData.

See: https://lorensen.github.io/VTKExamples/site/Cxx/PolyData/FieldData/

Here is an example that saves a vtkCamera's parameters in field data:


On Tue, Dec 5, 2017 at 2:44 AM, landings <landinghere at 163.com> wrote:
> Hi, I have some additional information (actually a 4 x 4 matrix, or
> potentially more data) and want it pass through the pipeline.
> I have written my own reader who will offer an unstructured grid along with
> additional information, and my own writer who will receive filtered
> geometries with intact additional information.
> The filters in between are unpredictable. But they should not affect this
> information.
> What is the best way to do this?
> --
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