[Qgis-developer] Announcing raster-pipes-2 branch for testing

[Marco Hugentobler]

Hi Etienne

Thanks for the feedback, very much appreciated. I've fixed these issues 
in raster-pipes-2 branch now.

There are still a few things missing in raster saving:
- write colortable to output dataset
- format specific options (e.g. compression)
- dynamic populating of the format combo box (currently hardcoded to 
geotiff)
- progress indication for tile based saving and possibility to cancel

Regards,
Marco

On 18.07.2012 21:12, Etienne Tourigny wrote:
> Noticed a few issues with the save dialog
>   
> 1) "format" drop-down is empty
> 2) cannot select a new file
> 3) segfault when saving to an existing file
> 4) It would be nice to have that action in the legend contextual menu,
> like for vector layers.
>
> regards,
> Etienne
>
> On Wed, Jul 18, 2012 at 3:59 PM, Etienne Tourigny
> <etourigny.dev at gmail.com> wrote:
>> That's great news!
>>
>> Concerning raster saving - will there be a mechanism for compressing files?
>> It would be great if default compression schemes could be chosen for
>> different file types, and an option at save time - sort of like image
>> editors.
>>
>> I had trouble building it with external spatialite, could only get it
>> to compile with cmake -DWITH_INTERNAL_SPATIALITE=TRUE - does this
>> require a special version of spatialite?
>>
>> regards,
>> Etienne
>>
>> On Wed, Jul 18, 2012 at 12:13 PM, Marco Hugentobler
>> <marco.hugentobler at sourcepole.ch> wrote:
>>> Hi devs
>>>
>>> I'd like to announce the branch 'raster-pipes-2' in Radims repository
>>> https://github.com/blazek/Quantum-GIS for testing.
>>> Radim did a great job in refactoring the process of reading / resampling /
>>> reprojecting / displaying / modifying raster layers. Every step is now a
>>> subclass of QgsRasterInterface, with the advantage that several steps can be
>>> chained in a QgsRasterPipe. Like that, the raster functionality is nicely
>>> separated into different classes and it is easy to add/remove elements in
>>> the pipe. The iteration over the raster parts is controlled by
>>> QgsRasterIterator (because for high-resolution prints or analysis on large
>>> datasets, it is impossible to keep everything in memory at once).
>>>
>>> Please report any issue you find in the branch to the developer mailing
>>> list.
>>>
>>> Besides the changes in code architecture, there is also a new feature in the
>>> raster-pipes-2 branch. It is now possible to write through
>>> QgsRasterDataProvider (currently only supported by the gdal provider). There
>>> is a 'save as...' function also for rasters now (though it is not 100%
>>> complete at the moment). There is the option to save a raster in one file or
>>> in tiles (the tiles are then saved in one directory and vrt / pyramides are
>>> automatically created. Very usefull for saving the contents of a WMS layer).
>>>
>>> Regards,
>>> Marco
>>>
>>> --
>>> Dr. Marco Hugentobler
>>> Sourcepole -  Linux & Open Source Solutions
>>> Weberstrasse 5, CH-8004 Zürich, Switzerland
>>> marco.hugentobler at sourcepole.ch http://www.sourcepole.ch
>>> Technical Advisor QGIS Project Steering Committee
>>>
>>> _______________________________________________
>>> Qgis-developer mailing list
>>> Qgis-developer at lists.osgeo.org
>>> http://lists.osgeo.org/mailman/listinfo/qgis-developer


-- 
Dr. Marco Hugentobler
Sourcepole -  Linux & Open Source Solutions
Churerstrasse 22, CH-8808 Pfäffikon SZ, Switzerland
marco.hugentobler at sourcepole.ch http://www.sourcepole.ch
Technical Advisor QGIS Project Steering Committee