[Qgis-user] Large raster datasets in 2.0

[Stott James]

Does this bug that has just been fixed solve any of your problems?

http://hub.qgis.org/issues/8356

I have lots of vrt files with overviews built, and they were taking forever to load in QGIS master. Now they open quickly again like in 1.8.

Fra: qgis-user-bounces at lists.osgeo.org [mailto:qgis-user-bounces at lists.osgeo.org] På vegne av Jonathan Moules
Sendt: 20. august 2013 13:10
Til: qgis-user at lists.osgeo.org
Emne: [Qgis-user] Large raster datasets in 2.0

Hi list,
  We have some large raster datasets that are mosaiced into a single product. QGIS 1.7 (and I think 1.8) could access these in JP2 or ECW, but 2.0 doesn't seem to be able to (or maybe that's a limitation of the weeklies and the final thing will be compiled with it?).

Due to the size of the rasters combined with a bug in GDAL that causes it to take literally a month to process the overviews for super-large rasters (about 450,000 * 440,000), we can't create them as a GeoTIFF.

So the question - how do I use super-large rasters as a single contiguous dataset in QGIS 2?

Thanks,
Jonathan

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