[vtkusers] merge Filters
dominik at itis.ethz.ch
Wed Nov 12 04:05:40 EST 2008
In vtkDataArray family there is a method SetArray (or SetData, don't
remember) that takes over the pointer to existing buffer. This is
probably what you want here. Still there is an issue with the ordering
(row- or column-wise) - you will have to conform to VTK's row-major style.
Benjamin Schindler wrote:
> I've got the issue that vector data channels are provided as single
> floats (1 channel each component). So I would like to write a filter
> which merges the these three data channel into a vector data channel.
> Now since I never should modify the input data in a filter, I'd have to
> copy the entire data just for the merge which is a lot of memory in case
> of large data files. Is there a way to circumvent this? (Like using the
> same array for all other data channels I get for the input in the output?)
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Dominik Szczerba, PhD
Computational Physics Group
IT'IS Foundation for Research
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