[gdal-dev] Multidimensional raster support in GDAL

[Ari Jolma]

Even Rouault kirjoitti 22.11.2017 klo 15:11:
>
> On mercredi 22 novembre 2017 14:38:55 CET Ari Jolma wrote:
>
> > Even Rouault kirjoitti 21.11.2017 klo 16:06:
>
> > > gdal_translate (actually GDALDatasetCopyWholeRaster()) uses the
>
> > > INTERLEAVE=PIXEL/BAND metadata item of the IMAGE_STRUCTURE domain as a
>
> > > hint whether to read band by band or all bands together
>
> > >
>
> > > So if you add the following, it should request all bands :
>
> > >
>
> > > poDS->SetMetadataItem("INTERLEAVE", "PIXEL", "IMAGE_STRUCTURE")
>
> >
>
> > I don't see that happening in the case of WCS driver:
>
> >
>
> > PIXEL_INTERLEAVE=TRUE is my option to set the metadata item but it could
>
> > be set with option INTERLEAVE=PIXEL, which GDALDatasetCopyWholeRaster()
>
> > examines.
>
> >
>
> Probably related to the logic of WCSDataset::TestUseBlockIO() which 
> given your area of interest size of 2x2 will force bocked IO instead 
> of direct IO
>
> If PIXEL_INTERLEAVE=TRUE is set, you might want to force the 
> implementation of WCSRasterBand::IReadBlock() to read all the bands.
>

I guess the situation is same for WCSDataset::IRasterIO which may be 
called BandCount and BandMap.

Works fine.

Ari

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