Hi:
Is this the right way to do UTM -> Long/Lat conversion?
-- CODE START
public DirectPosition UTMtoLatLong(DirectPosition positionUTM) {
DirectPosition positionLatLong = null;
GeographicCRS geoCRS = DefaultGeographicCRS.WGS84;
CartesianCS cartCS = DefaultCartesianCS.GENERIC_2D;
MathTransformFactory mtFactory =
FactoryFinder.getMathTransformFactory(null);
FactoryGroup factories = new FactoryGroup(null);
try {
ParameterValueGroup parameters =
mtFactory.getDefaultParameters("Mercator_1SP");
parameters.parameter("scale_factor").setValue(0.9996);
//parameters.parameter("scale_factor").setValue(1.000);
//parameters.parameter("central_meridian").setValue(0.0);
//parameters.parameter("latitude_of_origin").setValue(0.0);
parameters.parameter("false_easting").setValue(500000.0);
//parameters.parameter("false_northing").setValue(0.0);
Map properties = Collections.singletonMap("name", "WGS 84 /
Mercator_1SP");
ProjectedCRS projCRS = factories.createProjectedCRS(properties,
geoCRS, null, parameters, cartCS);
CoordinateOperationFactory coFactory =
FactoryFinder.getCoordinateOperationFactory(null);
CoordinateReferenceSystem sourceCRS = geoCRS;
CoordinateReferenceSystem targetCRS = projCRS;
CoordinateOperation op = coFactory.createOperation(sourceCRS,
targetCRS);
MathTransform mtLatLong2UTM = op.getMathTransform();
//System.out.println("Math Transform: " + mtLatLong2UTM.toWKT());
MathTransform mtUTM2LatLong = mtLatLong2UTM.inverse();
positionLatLong = mtUTM2LatLong.transform(positionUTM, null);
} catch (Exception ex) {
System.err.println(ex.getMessage());
}
return positionLatLong;
}
-- CODE END
--
Diego Fdez. Durán <[EMAIL PROTECTED]> | http://www.goedi.net
GPG : 925C 9A21 7A11 3B13 6E43 50DB F579 D119 90D2 66BB
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