[vtkusers] VTK 5.8.0 HDF5 reader

[Dominik Szczerba]

Is there one in VTK already - or planned?

Dominik

On Wed, Nov 9, 2011 at 7:41 PM, Biddiscombe, John A. <biddisco at cscs.ch> wrote:
> vtkXdmfReader will probably help
>
> JB
>
> -----Original Message-----
> From: vtkusers-bounces at vtk.org [mailto:vtkusers-bounces at vtk.org] On Behalf Of Jim Geach
> Sent: 09 November 2011 17:05
> To: vtkusers at vtk.org
> Subject: [vtkusers] VTK 5.8.0 HDF5 reader
>
>
> dear all --
>
> i'd like to read a data-set (regular gridded data) from a large HDF5 file, straight into a vtkStructuredPoints object if possible.
>
> currently i'm doing this (in python) by first reading from the HDF5 using h5py into a numpy array and then converting to a vtkDataArray, etc.
>
> however, there are two problems:
>
> (a) this is quite slow (we're dealing with many GB data sets)
> (b) there is a bug in numpy that doesn't allow the passing of extremely large (i.e. 2**32-1 element) arrays to VTK
>
> so in short, is there a vtkHDF5Reader ?
>
> i have found some (old) documentation on some discussion boards about an earlier reader, but all the links are defunct. however, i also came across some more recent discussion of HDF5 in VTK 5.8 which looked encouraging.
>
> any help would be gratefully received
>
> jim
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