Re: [Geotools-gt2-users] Rasters

[<jer...@in...>]

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]