/** Constructs an authority factory using the specified hints and priority. */
protected FactoryUsingWKT(final Hints userHints, final int priority) {
super(userHints, priority);
factories = ReferencingFactoryContainer.instance(userHints);
Object hint = null;
if (userHints != null) {
hint = userHints.get(Hints.CRS_AUTHORITY_EXTRA_DIRECTORY);
}
if (hint instanceof File) {
directory = (File) hint;
} else if (hint instanceof String) {
directory = new File((String) hint);
} else {
directory = null;
}
hints.put(Hints.CRS_AUTHORITY_EXTRA_DIRECTORY, directory);
// Disposes the cached property file after at least 15 minutes of inactivity.
setTimeout(15 * 60 * 1000L);
}
/**
* 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());
}