[Qgis-developer] Raster providers

[Radim Blazek]

That fix is was already superseded by complete
QgsGdalProvider::readBlock rewrite.

I'll look at it.

On Fri, Mar 11, 2011 at 8:54 PM, Giovanni Manghi
<giovanni.manghi at gmail.com> wrote:
> Hi Radim,
>
> unfortunately the "temporary? ugly fix for not georeferenced images", as
> you call in the commit, does not seem to work fine with the
> georeferencer.
>
> If you open a non-georeferenced image in the georeferencer it will not
> show in the tool window.
>
> Cheers
>
>
> -- Giovanni --
>
>
> On Wed, 2011-03-09 at 22:47 +0100, Radim Blazek wrote:
>> The reason is, that GDALCreateGenImgProjTransformer() does not accept
>> source data sources which are not georeferenced. As an ugly
>> workaround, I set the first item in GeoTransform (x offset) to
>> DBL_MIN. In theory it can cause a shift in georeferencing. I don't
>> believe however that it could be really a problem. The shift is
>> 2.22507e-308.
>>
>> Se also cc from gdal list.
>>
>> Radim
>>
>> On Wed, Mar 9, 2011 at 9:53 AM, Werner Macho <werner.macho at gmail.com> wrote:
>> > Hi all!
>> >
>> > I  tried to load a simple jpg (without any projection information) into
>> > QGIS just to test ..
>> > It unfortunately leads to a segfault ..
>> > Then i thought to georeference the file first ... and opened the
>> > georeferencer plugin .. but it seems the georeferencer plugin uses the
>> > same mechanism to load the jpg as qgis itself .. so nothing showed up
>> > and I were not able to georeference the raster file ..
>> >
>> > It seems that there whould be some defaults for rasterfiles without any
>> > projection information. Otherwise it is not possible to create
>> > georeferenced files any more..
>> >
>> > Anyone can confirm this?
>> >
>> > best regards
>> > Werner
>> >
>> >
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>
>