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

Tue Jul 24 07:53:04 PDT 2012

Hi all

I think it would be a good move to merge the raster-pipes-2 branch back 
to trunk. Ok, I know more instabilities, things to polish, etc. But in 
trunk, it receives more attention and people are more motivated to work 
on it.

Any objections?

Regards,
Marco

Am 20.07.2012 22:15, schrieb Tim Sutton:
> Hi
>
> On Fri, Jul 20, 2012 at 10:13 PM, Etienne Tourigny
> <etourigny.dev at gmail.com> wrote:
>> Ok this is a more general question then - which format(s) should
>> raster export support?
>>
> It should support any GDAL raster driver that supports write and that
> is useable with the active dataset.
>
> I was referring to tif only in terms of the default profiles I mentioned.
>
> Regards
>
> Tim
>
>> Etienne
>>
>> On Fri, Jul 20, 2012 at 5:11 PM, Tim Sutton <lists at linfiniti.com> wrote:
>>> Hi
>>>
>>> On Fri, Jul 20, 2012 at 10:07 PM, Etienne Tourigny
>>> <etourigny.dev at gmail.com> wrote:
>>>
>>>>> One thing that would be really nice is to have
>>>>> some default profiles:
>>>>>
>>>>> - options for maximum read performance regardless of disk space
>>>>> - options for minumum file size regardless of performance
>>>>> - options for 'middle of the road' between the above two
>>>> would you have these options for all file types? it could get a little
>>>> complex, but worth the effort. For now I am implementing 1 default for
>>>> each driver, which can be defined by the user.
>>>>
>>> I was thinking just for tiff as I think it is the most generically used.
>>>
>>> Regards
>>>
>>> Tim
>>>
>>>> Etienne
>>>>
>>>>> Regards
>>>>>
>>>>> Tim
>>>>>
>>>>>
>>>>>>> I have granted you write access, please work directly in raster-pipes-2.
>>>>>> thanks
>>>>>> Etienne
>>>>>>
>>>>>>> Radim
>>>>>>>
>>>>>>>> Etienne
>>>>>>>>
>>>>>>>> On Thu, Jul 19, 2012 at 7:21 PM, Tim Sutton <lists at linfiniti.com> wrote:
>>>>>>>>> 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
>>>>>>>>>>>
>>>>>>>>>> _______________________________________________
>>>>>>>>>> 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)
>>>>>>>>> ==============================================
>>>>>>>>> Please do not email me off-list with technical
>>>>>>>>> support questions. Using the lists will gain
>>>>>>>>> more exposure for your issues and the knowledge
>>>>>>>>> surrounding your issue will be shared with all.
>>>>>>>>>
>>>>>>>>> Visit http://linfiniti.com to find out about:
>>>>>>>>>   * QGIS programming and support services
>>>>>>>>>   * Mapserver and PostGIS based hosting plans
>>>>>>>>>   * FOSS Consulting Services
>>>>>>>>> Skype: timlinux
>>>>>>>>> Irc: timlinux on #qgis at freenode.net
>>>>>>>>> ==============================================
>>>>>>>> _______________________________________________
>>>>>>>> Qgis-developer mailing list
>>>>>>>> Qgis-developer at lists.osgeo.org
>>>>>>>> http://lists.osgeo.org/mailman/listinfo/qgis-developer
>>>>>> _______________________________________________
>>>>>> 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)
>>>>> ==============================================
>>>>> Please do not email me off-list with technical
>>>>> support questions. Using the lists will gain
>>>>> more exposure for your issues and the knowledge
>>>>> surrounding your issue will be shared with all.
>>>>>
>>>>> Visit http://linfiniti.com to find out about:
>>>>>   * QGIS programming and support services
>>>>>   * Mapserver and PostGIS based hosting plans
>>>>>   * FOSS Consulting Services
>>>>> Skype: timlinux
>>>>> Irc: timlinux on #qgis at freenode.net
>>>>> ==============================================
>>>
>>>
>>> --
>>> Tim Sutton - QGIS Project Steering Committee Member (Release  Manager)
>>> ==============================================
>>> Please do not email me off-list with technical
>>> support questions. Using the lists will gain
>>> more exposure for your issues and the knowledge
>>> surrounding your issue will be shared with all.
>>>
>>> Visit http://linfiniti.com to find out about:
>>>   * QGIS programming and support services
>>>   * Mapserver and PostGIS based hosting plans
>>>   * FOSS Consulting Services
>>> Skype: timlinux
>>> Irc: timlinux on #qgis at freenode.net
>>> ==============================================
>
>

-- 
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