[gdal-dev] GSOC 2015 proposal - Integration of cpp GDAL utilities into GDAL core library

[Peter Halls]

Maybe I've missed the point (through over familiarity with GDAL/OGR?)
.... but these utilities were originally branded as 'worked examples'
of how to use the substantive libraries to perform well understood
operations from which usage of the libraries might be readily
understood.  Each utility is itself a commented set of function calls
to the relevent GDAL libraries.  Why is there a need to duplicate this
in turning the utilities into function calls which then, in turn, must
be called by new stand-alone utilities?  There has to be a loss of
efficiency in sunch a process.

Best wishes,

Peter

On 27 March 2015 at 18:23, Nishith Maheshwari <nshthm at gmail.com> wrote:
> Hi all,
> Please find the following proposal for 'Integration of cpp GDAL utilities
> into GDAL core library'. The same has been submitted to google-melange
> website-
>
> https://docs.google.com/document/d/1Knld8FjWCMpibF2MzJKjZ0S8mrUKdxpA7RrlUX-B95g/edit?usp=sharing
>
> Sorry for the delay in putting up the proposal. Feedback and comments would
> be really helpful.
>
> Regards,
> Nishith Maheshwari
> Lab for Spatial Informatics
> IIIT Hyderabad, India
>
> On Thu, Mar 19, 2015 at 4:02 PM, Volker Wichmann
> <Volker.Wichmann at uibk.ac.at> wrote:
>>
>> Hi Nishith,
>>
>> On 03/18/2015 08:27 PM, Nishith Maheshwari wrote:
>>>
>>> Hi,
>>> I am a masters student from IIIT Hyderabad and currently in my final
>>> year of study and working in the Lab for Spatial Informatics here.
>>>
>>> I was a part of GSOC 2014 and worked on the project *'Schematization
>>> Plugin for QGIS'* last year [1][2].
>>>
>>> I am interested in the project *'Integration of cpp GDAL utilities into
>>> GDAL core library'* .
>>>
>>> I have already looked at a few codes of gdal utilities available in the
>>> 'apps' folder of the sourcecode and had a few queries -
>>>
>>> 1. From my understanding of the project description, the aim is to
>>> refactor the individual codes of gdal utilities by removing the main()
>>> and making them available in the form of functions. These functions can
>>> then be accessed by another function like GDALRunUtility() which can be
>>> used to call them individually using specific parameters. Please let me
>>> know if I'm thinking in the right direction.
>>>
>>> 2. If we are implementing individual functions for every utility we
>>> might not require a separate layer of interaction in the form of
>>> GDALRunUtility(). Any thoughts?
>>
>>
>> yes, the idea was to move the functionality of the gdal utilities to GDAL
>> core in order to have it available directly when using the library and thus
>> to facilitate their usage from "external" programs. The functionality should
>> be usable with the GDALRunUtility() function. This would avoid e.g. a system
>> call to a tool or code duplication which is currently needed in order to
>> create a GDAL vrt for example.
>>
>> It is not intended to remove the GDAL tools, but they would have to be
>> reworked to just provide the parameter interface and then to call
>> GDALRunUtility() themselves. The idea to have a GDALRunUtility() function is
>> to have a unique entry point and common interface to all tool functionality.
>>
>> Best regards,
>> Volker
>>
>>
>>>
>>> [1] http://hub.qgis.org/wiki/quantum-gis/nishithm
>>> [2] https://github.com/nishithm/schematization
>>>
>>> Regards,
>>> Nishith Maheshwari
>>> Lab for Spatial Informatics
>>> IIIT Hyderabad, India
>>>
>>>
>>> _______________________________________________
>>> gdal-dev mailing list
>>> gdal-dev at lists.osgeo.org
>>> http://lists.osgeo.org/mailman/listinfo/gdal-dev
>>>
>>
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>
>
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-- 
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Peter J Halls, PhD Student, Post-war Reconstruction and Development Unit (PRDU)
                     Department of Politics, University of York

Snail mail: PRDU, Derwent College, University of York,
                Heslington, York YO10 5DD
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