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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