Hi,
With my rasters, I've got the same problem (y coordinate are negatives)
with the geotiff downloaded at
http://www.csc.noaa.gov/crs/tcm/sample_geotiff.html
So it seems to come from my code and the use of geotools.
Any ideas where it does come from ?
Jérémy
***************
code :
------
MapContext mapContext = new DefaultMapContext();
StyleBuilder styleBuilder = new StyleBuilder();
Envelope envelope = new Envelope();
// On charge le GridCoverage
GeoTiffReader reader = (GeoTiffReader) ((new
GeoTiffFormat()).getReader(new File(NOM_FICHIER_GEOTIFF)));
GridCoverage gc = reader.read(null);
debug("gc.getCoordinateReferenceSystem() >" +
gc.getCoordinateReferenceSystem());
debug("gc.getEnvelope() >" + gc.getEnvelope());
output :
--------
Could not find mediaLib accelerator wrapper classes. Continuing in pure
Java mode.
[DEBUG_GeotiffTest] gc.getCoordinateReferenceSystem() >PROJCS["NAD83 / UTM
zone 17N",
GEOGCS["NAD83",
DATUM["North_American_Datum_1983",
SPHEROID["GRS 1980", 6378137.0, 298.257222101,
AUTHORITY["EPSG","7019"]],
TOWGS84[0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0],
AUTHORITY["EPSG","6269"]],
PRIMEM["Greenwich", 0.0, AUTHORITY["EPSG","8901"]],
UNIT["degree", 0.017453292519943295],
AXIS["Lon", EAST],
AXIS["Lat", NORTH],
AUTHORITY["EPSG","4269"]],
PROJECTION["Transverse_Mercator", AUTHORITY["OGC","Transverse_Mercator"]],
PARAMETER["central_meridian", -81.0],
PARAMETER["latitude_of_origin", 0.0],
PARAMETER["scale_factor", 0.9996],
PARAMETER["false_easting", 500000.0],
PARAMETER["false_northing", 0.0],
UNIT["m", 1.0],
AXIS["x", EAST],
AXIS["y", NORTH],
AUTHORITY["EPSG","26917"]]
[DEBUG_GeotiffTest] gc.getEnvelope() >GeneralEnvelope[703983.695935,
-3738421.777099, 704893.695935, -3737739.777099]
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