Hi Martin,
Refactoring the ND work, me and Alessio have already started some work on
metadata, partially leveraging on GML-JPEG2000 specifications (and some
parts of 19111), also using some part of your Coverageio module as we
discussed some months ago.
Moreover, we have started a document with schemas and diagrams describing
the metadata structure we have defined.
If you want to take a look on it, let me know. (As a side note, I have just
noticed that OpenOffice weirdly scrambled/overlapped figures... :( )
Cheers,
Daniele
On Thu, Jun 26, 2008 at 10:17 PM, Martin Desruisseaux <
[EMAIL PROTECTED]> wrote:
> Hello Simone
>
> Simone Giannecchini a écrit :
> > Martin, do you think it would be a lot of work to make the
> > coverageio-mosaic work with a file structure instead of a db?
>
> coverageio-mosaic does not work with any persistence mechanism for tile
> informations (neither a file structure or a db). The persistence mechanism
> is up
> to the user: he has the responsability to instantiate a set of Tile objects
> from
> a shapefile, a db or whatever. So we can write a coverageio-mosaic plugin
> for
> shapefiles and a plugin for databases.
>
> There is actually a persitence mechanism as a database: it lives on the
> postgrid
> module. It does not prevent us in any way to create a persistence mechanism
> from
> shapefiles as well.
>
> If the shapefile contains informations beyond the "pixel world", for
> example if
> the shapefile contains informations about the geographic envelope and the
> CRS,
> then it is not intented to live in the MosaicImageReader package. It is
> rather
> intented to live in some kind of CoverageReader wrapping MosaicImageReader.
> We
> have not yet reach this level (so from this point of view MosaicImageReader
> is
> not yet to the conceptual level of your imagemosaic module - which is why I
> said
> that it can generates the images but not the indexed shapefile). The next
> step
> before to reach this level is to get a GeographicImageMetadata framework.
> Cédric
> is working on refactoring my first attempt into a more "GML in JPEG-2000"
> compliant schema.
>
> Martin
>
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--
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Eng. Daniele Romagnoli
Software Engineer
GeoSolutions S.A.S.
Via Carignoni 51
55041 Camaiore (LU)
Italy
phone: +39 0584983027
fax: +39 0584983027
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http://www.geo-solutions.it
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