[vtkusers] VTK data structure to C-array

[Elvis Stansvik]

2018-06-23 19:28 GMT+02:00 Romain LEGUAY <romain.leguay at gmail.com>:

> Hi everyone,
>
>
>
> I try to convert all points of a vtkImageData to a C-array.
>
> My purpose is to use this array Inside OpenCL for example.
>
>
>
> My method actually is to read all points of the vtkImageData using
> vtkImageData::ComputePointId and vtkImageData ::GetPoint but this method is
> too slow.
>
>
>
> I don’t find any documentation on this.
>

You can get a direct pointer to the data using GetScalarPointer() [1].

HTH,
Elvis

[1]
https://www.vtk.org/doc/nightly/html/classvtkImageData.html#a567566b094dcc3187061dc5ff02a6abb


>
> Thanks,
>
>
>
> Romain
>
>
>
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