Hi Rainer,
I've been doing similar work recently, and I've been using
ReferencedEnvelope in the construction of my GridCoverage.
Matt
Rainer Suddendorf wrote:
Hi,
I want render a tiff file.
It works perfectly with geotiff files.
But when Iget the coordinates and resolution from an .tfw, I have to
set the Coordinatereferencesystem.
How do I set the CRS manually?
I tried the following, but the GridCoverage does not inherit the CRS
from CRSEnvelope.
public static void main(String[] args) throws Exception {
String name = args[0];
Style style = JMapStyles.getRasterStyle(1.0);
GridCoverageFactory gcFactory = new GridCoverageFactory();
double dist =1000.0;
double x=3544563.0;
double y = 5789834.0;
CRSEnvelope envelope =
new CRSEnvelope("31467", x,y,x+dist,y+dist);
GridCoverage2D gridCoverage = gcFactory.create(name,
getImage(name), envelope);
Object o = gridCoverage.getCoordinateReferenceSystem();
if ( o.equals (CRS.decode("EPSG:31467")){
System.out.println("That wolud be nice, but I never get
here");
}
System.out.out(o);
}
The output:
GEOGCS["WGS84",
DATUM["WGS84",
SPHEROID["WGS84", 6378137.0, 298.257223563]],
PRIMEM["Greenwich", 0.0],
UNIT["degree", 0.017453292519943295],
AXIS["Geodetic longitude", EAST],
AXIS["Geodetic latitude", NORTH]]
I am using geotools 2.4.3.
Thanks for your help.
Rainer
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