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

[Tim Sutton]

Hi

On Fri, Jul 20, 2012 at 12:19 AM, Etienne Tourigny
<etourigny.dev at gmail.com> wrote:
> 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
>> - 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
>
> It just occurred to me that it would be a great thing to implement
> this as a widget+class in QgisGui, so that it could be used elsewhere
> (e.g. gdaltools, sextante).
>

You mean as a reusable widget like the crs selector? Yes that would be great!

Regards

Tim

> Any way I can help?
>
>
>>
>> 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
>>
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-- 
Tim Sutton - QGIS Project Steering Committee Member (Release  Manager)
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