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

Marco Hugentobler marco.hugentobler at sourcepole.ch
Wed Jul 25 09:00:27 PDT 2012 

Hi all

The branch is merged. Enjoy (and report issues on the bugtracker).

Regards,
Marco

Am 24.07.2012 16:53, schrieb Marco Hugentobler:
> 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

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