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

[Etienne Tourigny]

Marco,  my pleasure!

On Thu, Jul 19, 2012 at 4:09 PM, Marco Hugentobler
<marco.hugentobler at sourcepole.ch> wrote:
> 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

The gdal way or the qgis way? Eventually it would be nice to make
these 2 representations compatible.

> - format specific options (e.g. compression)
> - dynamic populating of the format combo box (currently hardcoded to
> geotiff)

I assume this would this be for enabled formats only?

> - progress indication for tile based saving and possibility to cancel

I would be great to have this even if not saving tiles, if it's not
done already.

Etienne

>
> 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
>