[Qgis-user] Warp raster layer, huge files ouput

[MORREALE Jean Roc]

GDAL has a warp option (-wo OPTIMIZE_SIZE=TRUE) to force the chosen 
compression scheme, the reprojection is smaller but the output files 
will be smaller. This options is not available in the georefencer or the 
warp plugin.

Le 22/05/2012 16:02, Etienne Tourigny a écrit :
> Ahh I had misread- thought you were looking to warp it, not reproject! sorry
>
> That feature is not available for warp operation yet.
>
> As Tim's blog entry says : ‘Creation Options’ panel that appears near
> the bottom of SOME dialogs.
>
> Etienne
>
> On Tue, May 22, 2012 at 5:06 AM, Filipe Silva Dias
> <filipesdias at gmail.com>  wrote:
>> Take a look at this.
>>
>> http://linfiniti.com/2012/03/specifying-options-in-the-qgis-gdal-tools/
>>
>>
>> On Mon, May 21, 2012 at 11:13 PM, Etienne Tourigny<etourigny.dev at gmail.com>
>> wrote:
>>>
>>> you probably want to compress it, I assume your source is a geotiff
>>> and it is compressed.
>>>
>>> Gdaltools has options for this, you need to check out gdalwarp
>>> compression options.  You'll need to add something like '-co
>>> COMPRESS=DEFLATE' in the middle of the command.
>>>
>>> Etiene
>>>
>>> On Mon, May 21, 2012 at 6:56 PM, Marko Kvakić<markokvakic at gmail.com>
>>> wrote:
>>>> Dear Qgis users,
>>>>
>>>> I am trying to change the projection on the Corine landuse raster
>>>> dataset.
>>>>
>>>> The file in question is about 150 Mb, with the projection definition
>>>> ETRS_1989_LAEA_L52_M10
>>>> I have to change it into WGS84 one
>>>>
>>>> When running the Wrap plugin command, the resulting output file is 3 Gb
>>>> big
>>>> and unreadable.
>>>>
>>>> Any kind of help is very much appreciated.
>>>>
>>>> Thank you in advance.
>>>>
>>>> --
>>>> Marko Kvakić