Jérémy DE ROYER a écrit :
Where can I find a tutorial explaining :
- how to load the files (geotiff ou tif+tfw)
I can't tell on this one...
- how to define the projection (for me Lambert2E)
I don't know how to defines a projection in the particular case of the
GeoTIFF data store. However, there is how to creates a
CoordinateReferenceSystem object in the general case:
- Connect to an EPSG database. If you have the MS-Access software, you
can download the database from http://www.epsg.org, register it as an
ODBC datasource named "EPSG" (uppercase) and make sure that
gt2-epsg-access.jar is in yours classpath. If you can't or don't want
to use the MS-Access version, just make sure that hsqldb.jar and
gt2-epsg-hsql.jar are in yours classpath (an EPSG database in bundled
into gt2-epsg-hsql.jar).
- Gets the EPSG code for Lambert 2 étendue (I don't know it from memory.
If you have MS-Access, you can browse the Access database. They have
nice forms for that).
- Lets suppose that the EPSG code is 4326. You can write the following:
CoordinateReferenceSystem crs = CRS.decode("EPSG:4326");
Thats it. An alternative is to express yours CRS in "Well Known Text"
format and use CRS.parseWKT(theWKT).
There is tutorials on www.geotools.org for that, but unfortunatly they
seems to have disaspear recently because of a Confluence server update.
I don't know when they will be back.
I've seen things about GridCoverage (see below) but the loading doesn't
work (I receive a "Only Geographic & Projected Systems are supported").
See previous mail. It may be a missing field in the GeoTIFF file, but I
have the feeling that this field is not essential and that our GeoTIFF
module could be made more tolerant.
Martin.
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