How to use

org.apache.sis.referencing.operation.DefaultCoordinateOperationFactory

constructor

/**
 * Returns the factory for coordinate operation objects.
 * The factory is backed by this {@code Proj4Factory} as the {@code MathTransformFactory} implementation.
 */
final DefaultCoordinateOperationFactory opFactory() {
  DefaultCoordinateOperationFactory factory = opFactory;
  if (factory == null) {
    final Map<String,Object> properties = new HashMap<String,Object>(defaultProperties);
    properties.put(ReferencingServices.CRS_FACTORY,   crsFactory);
    properties.put(ReferencingServices.CS_FACTORY,    csFactory);
    properties.put(ReferencingServices.DATUM_FACTORY, datumFactory);
    factory = new DefaultCoordinateOperationFactory(properties, mtFactory);
    opFactory = factory;
  }
  return factory;
}

/**
 * Returns the factory for coordinate operation objects.
 * The factory is backed by this {@code Proj4Factory} as the {@code MathTransformFactory} implementation.
 */
final DefaultCoordinateOperationFactory opFactory() {
  DefaultCoordinateOperationFactory factory = opFactory;
  if (factory == null) {
    final Map<String,Object> properties = new HashMap<>(defaultProperties);
    properties.put(ReferencingServices.CRS_FACTORY,   crsFactory);
    properties.put(ReferencingServices.CS_FACTORY,    csFactory);
    properties.put(ReferencingServices.DATUM_FACTORY, datumFactory);
    factory = new DefaultCoordinateOperationFactory(properties, mtFactory);
    opFactory = factory;
  }
  return factory;
}

  @Override protected void initialize(final int factoryTypes) {
    if ((factoryTypes & OPERATION) != 0) {
      opFactory = new DefaultCoordinateOperationFactory();
    }
  }
};

CRSAuthorityFactory crsFac = ReferencingFactoryFinder
 .getCRSAuthorityFactory("EPSG", null);
 CoordinateReferenceSystem wgs84crs = crsFac
     .createCoordinateReferenceSystem("4326");
 CoordinateReferenceSystem osgbCrs = crsFac
     .createCoordinateReferenceSystem("27700");
 CoordinateOperation op = new DefaultCoordinateOperationFactory()
     .createOperation(osgbCrs, wgs84crs);
 DirectPosition eastNorth = new GeneralDirectPosition(easting, northing);
 DirectPosition latLng = op.getMathTransform().transform(eastNorth,
     eastNorth);
 double latitude=latLng.getOrdinate(0);
 double longitude=latLng.getOrdinate(1);

JDK8.putIfAbsent(p, CS_FACTORY,  csFactory);
properties = p;
return new DefaultCoordinateOperationFactory(properties, mtFactory);

p.putIfAbsent(CS_FACTORY,  csFactory);
properties = p;
return new DefaultCoordinateOperationFactory(properties, mtFactory);

/**
 * Creates a new {@link DefaultCoordinateOperationFactory} to use for testing purpose.
 * The same factory will be used for all tests in this class.
 *
 * @throws ParseException if an error occurred while preparing the WKT parser.
 */
@BeforeClass
public static void createFactory() throws ParseException {
  factory = new DefaultCoordinateOperationFactory();
  parser  = new WKTFormat(null, null);
  parser.addFragment("NTF",
      "Datum[“Nouvelle Triangulation Française (Paris)”,\n" +
      "  Ellipsoid[“Clarke 1880 (IGN)”, 6378249.2, 293.4660212936269]]");
}

factory = new DefaultCoordinateOperationFactory();
parser  = new WKTFormat(null, null);

factory = new DefaultCoordinateOperationFactory();
parser  = new WKTFormat(null, null);
parser.addFragment("NTF",