[Qgis-developer] Raster providers

Radim Blazek radim.blazek at gmail.com
Sun Feb 27 05:28:27 EST 2011


Hi,
thanks for testing, there are really too many combinations of data types,
drawing styles, projections, resolutions etc. which I am not able to test all.

It is fixed now. The problem was not in the color handling but in
source resolution calculation.

Radim

On Thu, Feb 24, 2011 at 10:00 AM, Tim Sutton <lists at linfiniti.com> wrote:
> Hi Radim
>
> I did some testing too. Having otf projection is coool! Id did run
> into some problems with my paletted image[1] though.
>
> If I open the image in QGIS default session (i.e. no OTF projection)
> it displays fine [2].
> If I enabled OTF Projection (using 900913 Google Mercator) the image
> displays as all grey [3].
> If I set the CRS to the native image projection (EPSG:32734), the
> image does not show at all.
>
> I still need to test with other image types properly but thought I
> would give you this feedback so long.
>
> Also I noted that for greyscale images they always seem to load with
> min 0 / max 0 and I have to manually go into properties to load them
> from the layer.
>
> [1] http://linfiniti.com/downloads/Toposheet.tif.bz2
> [2] http://imgur.com/JHOvt
> [3] http://imgur.com/NxB7z
>
>
> By the way if anyone else is using git-svn and wanting to test Radims
> branch, this was the process I used to add it as a local and remote
> branch in my local repo:
>
>
> git config --add svn-remote.raster-providers.url
> https://svn.osgeo.org/qgis/branches/raster-providers
> git config --add svn-remote.raster-providers.fetch
> :refs/remotes/raster-providers
> git svn fetch raster-providers -r 15231
> git checkout -b raster-providers -t raster-providers
> git svn rebase raster-providers
>
> Thanks to Juergen for pointing me to the relevant crannie in the
> internet that showed how to do that.
>
> Regards
>
> Tim
>
>
> On Mon, Feb 21, 2011 at 4:04 PM, Radim Blazek <radim.blazek at gmail.com> wrote:
>> Hi have fixed some known problems:
>> - short data types are represented by longer types to get space for
>> nulls (the problem Marco found)
>> - avoid statistics calculation on raster load  (reported by John C. Tull)
>> - properties are enabled according provider capabilities
>>
>> Please test.
>> Radim
>> _______________________________________________
>> Qgis-developer mailing list
>> Qgis-developer at lists.osgeo.org
>> http://lists.osgeo.org/mailman/listinfo/qgis-developer
>>
>
>
>
> --
> Tim Sutton - QGIS Project Steering Committee Member (Release  Manager)
> ==============================================
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