[vtkusers] How to convert (cast) "vtkExtractRectilinearGrid" data type to "vtkRectilinearGrid" type.

Cory Quammen cory.quammen at kitware.com
Fri Jul 17 06:45:51 EDT 2015


vtkExtractRectilinearGrid is a vtkAlgorithm subclass - it read's data and
produces data - while vtkRectilinearGrid is a subclass of vtkDataObject -
it stores data. No conversion between the two is possible.

What you need to do is call vtkExtractRectilinearGrid::GetOutput() to get
the vtkRectilinearGrid. Make sure to call vtkExtractRectilinearGrid::Update()
before you call GetOutput() so that the output data is up-to-date.

Best regards,

On Fri, Jul 17, 2015 at 1:36 AM, Manjunath K E <ke.manjunath at gmail.com>

> Hi,
> I am Manjunath, working on ocean visualization.
> I have generated certain volume of interest (VOI) using
> vtkExtractRectilinearGrid type. Now I would like to render
> vtkExtractRectilinearGrid as "vtkRectilinearGrid" type.
> I would like to know how to convert "vtkExtractRectilinearGrid" data type
> to "vtkRectilinearGrid" type.
>  Thanks and Regards,
>  Manjunath K E
>  Help Ever Hurt Never
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Cory Quammen
R&D Engineer
Kitware, Inc.
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