[Gfoss] Fwd: [gdal-dev] UFO format / GDAL 3.0
giohappy a gmail.com
Mer 1 Apr 2015 18:15:08 CEST
ma Even si è dimenticato di dire che, nella sua prima implementazione,
funzionerà solo un giorno all'anno.
Per cui l'interoperabilità potrà essere garantita solo il 1° di Aprile di
ogni anno :)
2015-04-01 18:13 GMT+02:00 Andrea Peri <aperi2007 a gmail.com>:
> Molto interessante davvero.
> Se va in porto apre scenari importanti per l'interoperabilità.
> Il 01/apr/2015 17:48 "Luca Delucchi" <lucadeluge a gmail.com> ha scritto:
>> Per chi non legge la mailing list gdal-dev una buona notizia per il
>> ---------- Forwarded message ----------
>> From: Even Rouault <even.rouault a spatialys.com>
>> Date: 1 April 2015 at 14:16
>> Subject: [gdal-dev] UFO format / GDAL 3.0
>> To: gdal-dev a lists.osgeo.org
>> Since some time a few ideas came to my mind and I felt today was a good
>> one to
>> share them and get feedback.
>> Considering the never ending proliferation of GIS file formats, currently
>> handled in GDAL trunk, it seems wise to put an end to it. Especially
>> since the
>> counter used to iterate over the drivers is a unsigned 8 bit, so we will
>> be unable to add more, or at the expense of sacrificing our ports to
>> Intel 8008
>> or Motorola 6800, which would be pretty sad.
>> Therefore I'd like to propose the UFO format, which stands for Universal
>> Format Oh-yeaaah!
>> The basic idea of UFO is that it isn't a fixed format, but a varying and
>> described one. XML (or perhaps EXI?) + XSD + XSLT + XPath + Schematron
>> probably do it, but for efficiency I thought to a byte-code interpreted by
>> libgdal and whose interface with libgdal would match the GDAL driver
>> interface. So basically each dataset would contain its own driver. The big
>> plus is that you could write image translators that would generate binary
>> encodings optimized for the particular dataset being encoded: for
>> example, it
>> is kind of stupid to write the values of each pixel of a Mandelbrot
>> whereas its mathematical description fits into a few lines of code.
>> Furthermore, still pursuing with that example, we could even have raster
>> arbitrary resolution, since that's a characteristics of fractals. And
>> many GIS
>> datasets have indeed fractal charasterics, such as coastlines (
>> http://en.wikipedia.org/wiki/Coastline_paradox )
>> For security reason, we should aim at supporting only simple & verifiable
>> languages, so Brainfuck (Brainf**k for the most puritans of us) seems to
>> be a
>> good fit : http://en.wikipedia.org/wiki/Brainfuck. Basically it is a
>> complete language with only 8 commands. So as much powerful as needed,
>> being very easy to learn and implement. To save some efforts, I'd humbly
>> suggest we adopt libbf ( http://savannah.nongnu.org/projects/libbf ), an
>> project of mine that also incorporates a on-the-fly optimizer & compiler
>> most popular architectures.
>> The plan would be to have an initial version of the UFO driver ready for
>> 2.0 and push strongly for its widespread adoption in all GIS, remote
>> OSS & proprietary vendors, etc.... Perhaps we should establish a dedicated
>> workgroup at OGC to make it a standard ? Then we could deprecate and
>> all existing drivers and at the time of GDAL 3.0, UFO would be the only
>> remaining driver, making the Intel 8008 port very happy!
>> Happy to hear from your thoughts before formalizing that as a RFC,
>> Spatialys - Geospatial professional services
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> Gfoss a lists.gfoss.it
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> I messaggi di questa lista non hanno relazione diretta con le posizioni
> dell'Associazione GFOSS.it.
> 750 iscritti al 18.3.2015
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