/** Returns a projected CRS for test purpose. */
private static CoordinateReferenceSystem getProjectedCRS(final GridCoverage2D coverage) {
try {
final GeographicCRS base = (GeographicCRS) coverage.getCoordinateReferenceSystem();
final Ellipsoid ellipsoid = base.getDatum().getEllipsoid();
final DefaultMathTransformFactory factory = new DefaultMathTransformFactory();
final ParameterValueGroup parameters = factory.getDefaultParameters("Oblique_Stereographic");
parameters.parameter("semi_major").setValue(ellipsoid.getSemiMajorAxis());
parameters.parameter("semi_minor").setValue(ellipsoid.getSemiMinorAxis());
parameters.parameter("central_meridian").setValue(5);
parameters.parameter("latitude_of_origin").setValue(-5);
final MathTransform mt;
try {
mt = factory.createParameterizedTransform(parameters);
} catch (FactoryException exception) {
fail(exception.getLocalizedMessage());
return null;
}
return new DefaultProjectedCRS("Stereographic", base, mt, DefaultCartesianCS.PROJECTED);
} catch (NoSuchIdentifierException exception) {
fail(exception.getLocalizedMessage());
return null;
}
}
public static void attachGeoCoding(
Product p,
double upperLeftLon,
double upperLeftLat,
double lowerRightLon,
double lowerRightLat,
String projection,
double[] projectionParameter) {
double pixelSizeX = (lowerRightLon - upperLeftLon) / p.getSceneRasterWidth();
double pixelSizeY = (upperLeftLat - lowerRightLat) / p.getSceneRasterHeight();
AffineTransform transform = new AffineTransform();
transform.translate(upperLeftLon, upperLeftLat);
transform.scale(pixelSizeX, -pixelSizeY);
transform.translate(PIXEL_CENTER, PIXEL_CENTER);
Rectangle imageBounds = new Rectangle(p.getSceneRasterWidth(), p.getSceneRasterHeight());
if (projection.equals("GCTP_GEO")) {
if ((upperLeftLon >= -180 && upperLeftLon <= 180)
&& (upperLeftLat >= -90 && upperLeftLat <= 90)
&& (lowerRightLon >= -180 && lowerRightLon <= 180)
&& (lowerRightLat >= -90 && lowerRightLat <= 90)) {
try {
p.setGeoCoding(new CrsGeoCoding(DefaultGeographicCRS.WGS84, imageBounds, transform));
} catch (FactoryException | TransformException ignore) {
}
}
} else {
if (projection.equals("GCTP_SNSOID")) {
final MathTransformFactory transformFactory =
ReferencingFactoryFinder.getMathTransformFactory(null);
ParameterValueGroup parameters;
try {
parameters = transformFactory.getDefaultParameters("OGC:Sinusoidal");
} catch (NoSuchIdentifierException ignore) {
return;
}
double semi_major;
double semi_minor;
if (projectionParameter != null) {
semi_major = projectionParameter[0];
semi_minor = projectionParameter[1];
if (semi_minor == 0) {
semi_minor = semi_major;
}
} else {
Ellipsoid ellipsoid = DefaultGeographicCRS.WGS84.getDatum().getEllipsoid();
semi_major = ellipsoid.getSemiMajorAxis();
semi_minor = ellipsoid.getSemiMinorAxis();
}
parameters.parameter("semi_major").setValue(semi_major);
parameters.parameter("semi_minor").setValue(semi_minor);
MathTransform mathTransform;
try {
mathTransform = transformFactory.createParameterizedTransform(parameters);
} catch (Exception ignore) {
return;
}
DefaultGeographicCRS base = DefaultGeographicCRS.WGS84;
CoordinateReferenceSystem modelCrs =
new DefaultProjectedCRS(
"Sinusoidal", base, mathTransform, DefaultCartesianCS.PROJECTED);
try {
CrsGeoCoding geoCoding = new CrsGeoCoding(modelCrs, imageBounds, transform);
p.setGeoCoding(geoCoding);
} catch (Exception ignore) {
}
}
}
}
/**
* Tests the creation of new coordinate reference systems.
*
* @throws FactoryException if a coordinate reference system can't be created.
*/
@Test
public void testCreation() throws FactoryException {
out.println();
out.println("Testing CRS creations");
out.println("---------------------");
out.println();
out.println("create Coodinate Reference System....1: ");
final DatumFactory datumFactory = ReferencingFactoryFinder.getDatumFactory(null);
final CSFactory csFactory = ReferencingFactoryFinder.getCSFactory(null);
final CRSFactory crsFactory = ReferencingFactoryFinder.getCRSFactory(null);
final MathTransformFactory mtFactory = ReferencingFactoryFinder.getMathTransformFactory(null);
final Ellipsoid airy1830;
final Unit<Length> meters = SI.METER;
airy1830 = datumFactory.createEllipsoid(name("Airy1830"), 6377563.396, 6356256.910, meters);
out.println();
out.println("create Coodinate Reference System....2: ");
out.println(airy1830.toWKT());
final PrimeMeridian greenwich;
final Unit<Angle> degrees = NonSI.DEGREE_ANGLE;
greenwich = datumFactory.createPrimeMeridian(name("Greenwich"), 0, degrees);
out.println();
out.println("create Coodinate Reference System....3: ");
out.println(greenwich.toWKT());
// NOTE: we could use the following pre-defined constant instead:
// DefaultPrimeMeridian.GREENWICH;
final GeodeticDatum datum;
datum = datumFactory.createGeodeticDatum(name("Airy1830"), airy1830, greenwich);
out.println();
out.println("create Coodinate Reference System....4: ");
out.println(datum.toWKT());
// NOTE: we could use the following pre-defined constant instead:
// DefaultEllipsoidalCS.GEODETIC_2D;
final EllipsoidalCS ellCS;
ellCS =
csFactory.createEllipsoidalCS(
name("Ellipsoidal"),
csFactory.createCoordinateSystemAxis(
name("Longitude"), "long", AxisDirection.EAST, degrees),
csFactory.createCoordinateSystemAxis(
name("Latitude"), "lat", AxisDirection.NORTH, degrees));
out.println();
out.println("create Coodinate Reference System....5: ");
out.println(ellCS); // No WKT for coordinate systems
final GeographicCRS geogCRS;
geogCRS = crsFactory.createGeographicCRS(name("Airy1830"), datum, ellCS);
out.println();
out.println("create Coodinate Reference System....6: ");
out.println(geogCRS.toWKT());
final MathTransform p;
final ParameterValueGroup param = mtFactory.getDefaultParameters("Transverse_Mercator");
param.parameter("semi_major").setValue(airy1830.getSemiMajorAxis());
param.parameter("semi_minor").setValue(airy1830.getSemiMinorAxis());
param.parameter("central_meridian").setValue(49);
param.parameter("latitude_of_origin").setValue(-2);
param.parameter("false_easting").setValue(400000);
param.parameter("false_northing").setValue(-100000);
out.println();
out.println("create Coodinate System....7: ");
out.println(param);
// NOTE: we could use the following pre-defined constant instead:
// DefaultCartesianCS.PROJECTED;
final CartesianCS cartCS;
cartCS =
csFactory.createCartesianCS(
name("Cartesian"),
csFactory.createCoordinateSystemAxis(name("Easting"), "x", AxisDirection.EAST, meters),
csFactory.createCoordinateSystemAxis(
name("Northing"), "y", AxisDirection.NORTH, meters));
out.println();
out.println("create Coodinate Reference System....8: ");
out.println(cartCS); // No WKT for coordinate systems
final Hints hints = new Hints();
hints.put(Hints.DATUM_FACTORY, datumFactory);
hints.put(Hints.CS_FACTORY, csFactory);
hints.put(Hints.CRS_FACTORY, crsFactory);
hints.put(Hints.MATH_TRANSFORM_FACTORY, mtFactory);
final ReferencingFactoryContainer container = new ReferencingFactoryContainer(hints);
assertSame(datumFactory, container.getDatumFactory());
assertSame(csFactory, container.getCSFactory());
assertSame(crsFactory, container.getCRSFactory());
assertSame(mtFactory, container.getMathTransformFactory());
final Conversion conversion = new DefiningConversion("GBN grid", param);
final ProjectedCRS projCRS =
crsFactory.createProjectedCRS(
name("Great_Britian_National_Grid"), geogCRS, conversion, cartCS);
out.println();
out.println("create Coodinate System....9: ");
out.println(projCRS.toWKT());
}