[gdal-dev] Questions about projects of GSoC 2009

[Jorge Arévalo]

Hello,

"Difficult" is a very subjective thing, totally agree. Sorry for the
approach of the question.

Maybe I can raise it in that way: What amount of theoretical/practical
knowledge do I need to start working on the project? For example, the first
project (PNG driver) suggests me the following initial knowledges (most of
them are specified in the web http://trac.osgeo.org/gdal/wiki/SummerOfCode):
- PNG format (of course)
- C / C++ fluently
- Raster, bands
- Basic GDAL architecture
- NeuQuant algorithm
- Kohonen Neural Networks
- pngnq
- Several tools that optimize PNG

The project about WKT raster (the list that you provided me on another
mail):
- raster
- band
- pixel and how pixel type influences raster structure
- recognize BIP, BIL and BSQ layouts
- reading and parsing binary data in C/C++
- encode/decode raw binary data to/from hex in C/C++
- understand idea behind Well-Known-Text and Well-Known-Binary
- understand basics of architecture of GDAL
- understand basics of PostGIS
- how to write good unit test for GDAL driver
- how to use GDAL, PostgreSQL and PostGIS manuals and websites

All concepts sound familiar (because I've studied or worked with them), but
I think that I need some previous time to go deeper. I have to include this
in my schedule. I'll finish it tomorrow, and we'll be able to go further on
this issue, if you want :-)

Thanks for your response

Best regards
Jorge

2009/3/29 Mateusz Loskot <mateusz at loskot.net>

> Jorge Arévalo wrote:
> > Hello everybody,
> >
> > I'm interesed in these projects:
> > - PNG Driver
> > - WMTS implementation
> > - WKT Raster Driver
>
> Great!
>
> > I would like to know a little more about them.
>
> Do you have any specific questions or concerns?
>
> > Basically, their estimated difficulty.
>
> Difficulty is a subjective thing.
> What is difficult to me, might be easy to you, so estimation
> may be lead misleading.
>
> > I'm very exciting about the possibility of being one of the selected
> > OSGeo students for GSoC 2009, but I think that I need to be realistic
> > and totally comitted with the project. I'm making a schedule, and I
> > would like to know if all projects fit into it.
>
> And, what's your schedule?
>
> > For example, the last
> > two projects seem to be longer that the first one, but maybe I'm
> > wrong.
>
> Exactly, "seem" is the right word.
>
> We don't know what's your experience and what you consider as
> easy/difficult. So, it's very hard to help you in making your
> decision unless you have specific / technical questions.
>
> Remember, that GSoC projects are not managed in the commercial way.
> It's you and mentor who agree that a project is completed or not.
> See Q9 and Q10:
>
> http://code.google.com/opensource/gsoc/2008/faqs.html#0.1_use_code
>
> So, I'd not worry much about making a very detailed timeline plan.
>
> For instance WKT Raster driver, as I mentioned in the proposal, the idea
> is to develop a *prototype*, something that proofs (or not) the concept
> is feasible and implementation may perform well, something that will be
> helpful and usable for further development.
>
> Best regards,
> --
> Mateusz Loskot, http://mateusz.loskot.net
> Charter Member of OSGeo, http://osgeo.org
>
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