[Qgis-user] Blocking issue with tilted huge images

[Luca Lanteri]

See also this ticket: https://hub.qgis.org/issues/3460.

For me the problem is not only due to piramid because I've the same problem
also if I dont' build it.

Hi
Luca


2014-07-24 18:07 GMT+02:00 Alexander Bruy <alexander.bruy at gmail.com>:

> Hi Stéphane,
>
> seems this is actually not QGIS issue but GDAL one. See this
> ticket in QGIS tracker https://hub.qgis.org/issues/1722 and another
> in GDAL http://trac.osgeo.org/gdal/ticket/2076
>
> 2014-07-24 18:56 GMT+03:00 TAS-QI <stephane.bonnot at thalesaleniaspace.com>:
> > Hi,
> >
> > we are trying to work around what looks like a bug regarding big images
> > (TIFF 30000x30000) that are georeferenced with a world file. When trying
> to
> > load such an image, QGIS (tested with 1.8 and 2.x) just freezes.
> > Investigation shows this occurs only when the World file contains a
> rotation
> > (is it trying to resample the complete image at loading time?). Manual
> > edition of the World file to remove the rotation leads to smooth loading
> of
> > the image.
> >
> > Can somebody help or suggest further tests?
> >
> > Thanks a lot,
> >
> > Stéphane.
> >
> >
> >
> > --
> > View this message in context:
> http://osgeo-org.1560.x6.nabble.com/Blocking-issue-with-tilted-huge-images-tp5153086.html
> > Sent from the Quantum GIS - User mailing list archive at Nabble.com.
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>
>
>
> --
> Alexander Bruy
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