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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.sis.referencing.crs;
import java.util.Map;
import javax.measure.Unit;
import javax.measure.quantity.Angle;
import javax.xml.bind.annotation.XmlType;
import javax.xml.bind.annotation.XmlElement;
import javax.xml.bind.annotation.XmlRootElement;
import org.opengis.referencing.crs.ProjectedCRS;
import org.opengis.referencing.crs.GeographicCRS;
import org.opengis.referencing.cs.CartesianCS;
import org.opengis.referencing.cs.CoordinateSystem; // For javadoc
import org.opengis.referencing.datum.GeodeticDatum;
import org.opengis.referencing.operation.Conversion;
import org.opengis.referencing.operation.Projection;
import org.opengis.geometry.MismatchedDimensionException;
import org.apache.sis.referencing.cs.AxesConvention;
import org.apache.sis.internal.referencing.ReferencingUtilities;
import org.apache.sis.internal.referencing.AxisDirections;
import org.apache.sis.internal.referencing.WKTKeywords;
import org.apache.sis.internal.referencing.WKTUtilities;
import org.apache.sis.io.wkt.Convention;
import org.apache.sis.io.wkt.Formatter;
import org.apache.sis.util.ComparisonMode;
import static org.apache.sis.internal.referencing.WKTUtilities.toFormattable;
/**
* A 2-dimensional coordinate reference system used to approximate the shape of the earth on a planar surface.
* It is done in such a way that the distortion that is inherent to the approximation is carefully controlled and known.
* Distortion correction is commonly applied to calculated bearings and distances to produce values
* that are a close match to actual field values.
*
* <p><b>Used with datum type:</b>
* {@linkplain org.apache.sis.referencing.datum.DefaultGeodeticDatum Geodetic}.<br>
* <b>Used with coordinate system type:</b>
* {@linkplain org.apache.sis.referencing.cs.DefaultCartesianCS Cartesian}.
* </p>
*
* <h2>Immutability and thread safety</h2>
* This class is immutable and thus thread-safe if the property <em>values</em> (not necessarily the map itself),
* the coordinate system and the datum instances given to the constructor are also immutable. Unless otherwise noted
* in the javadoc, this condition holds if all components were created using only SIS factories and static constants.
*
* @author Martin Desruisseaux (IRD, Geomatys)
* @version 0.6
*
* @see org.apache.sis.referencing.factory.GeodeticAuthorityFactory#createProjectedCRS(String)
*
* @since 0.6
* @module
*/
@XmlType(name = "ProjectedCRSType", propOrder = {
"baseCRS",
"coordinateSystem"
})
@XmlRootElement(name = "ProjectedCRS")
public class DefaultProjectedCRS extends AbstractDerivedCRS<Projection> implements ProjectedCRS {
/**
* Serial number for inter-operability with different versions.
*/
private static final long serialVersionUID = -4502680112031773028L;
/**
* Creates a projected CRS from a defining conversion.
* The properties given in argument follow the same rules than for the
* {@linkplain AbstractCRS#AbstractCRS(Map, CoordinateSystem) super-class constructor}.
* The following table is a reminder of main (not all) properties:
*
* <table class="sis">
* <caption>Recognized properties (non exhaustive list)</caption>
* <tr>
* <th>Property name</th>
* <th>Value type</th>
* <th>Returned by</th>
* </tr>
* <tr>
* <td>{@value org.opengis.referencing.IdentifiedObject#NAME_KEY}</td>
* <td>{@link org.opengis.metadata.Identifier} or {@link String}</td>
* <td>{@link #getName()}</td>
* </tr>
* <tr>
* <td>{@value org.opengis.referencing.IdentifiedObject#ALIAS_KEY}</td>
* <td>{@link org.opengis.util.GenericName} or {@link CharSequence} (optionally as array)</td>
* <td>{@link #getAlias()}</td>
* </tr>
* <tr>
* <td>{@value org.opengis.referencing.IdentifiedObject#IDENTIFIERS_KEY}</td>
* <td>{@link org.opengis.metadata.Identifier} (optionally as array)</td>
* <td>{@link #getIdentifiers()}</td>
* </tr>
* <tr>
* <td>{@value org.opengis.referencing.IdentifiedObject#REMARKS_KEY}</td>
* <td>{@link org.opengis.util.InternationalString} or {@link String}</td>
* <td>{@link #getRemarks()}</td>
* </tr>
* <tr>
* <td>{@value org.opengis.referencing.ReferenceSystem#DOMAIN_OF_VALIDITY_KEY}</td>
* <td>{@link org.opengis.metadata.extent.Extent}</td>
* <td>{@link #getDomainOfValidity()}</td>
* </tr>
* <tr>
* <td>{@value org.opengis.referencing.ReferenceSystem#SCOPE_KEY}</td>
* <td>{@link org.opengis.util.InternationalString} or {@link String}</td>
* <td>{@link #getScope()}</td>
* </tr>
* </table>
*
* The supplied {@code conversion} argument shall <strong>not</strong> includes the operation steps
* for performing {@linkplain org.apache.sis.referencing.cs.CoordinateSystems#swapAndScaleAxes unit
* conversions and change of axis order} since those operations will be inferred by this constructor.
*
* @param properties the properties to be given to the new derived CRS object.
* @param baseCRS coordinate reference system to base the derived CRS on.
* @param conversion the defining conversion from a {@linkplain AxesConvention#NORMALIZED normalized}
* base to a normalized derived CRS.
* @param derivedCS the coordinate system for the derived CRS. The number of axes must match
* the target dimension of the {@code baseToDerived} transform.
* @throws MismatchedDimensionException if the source and target dimensions of {@code baseToDerived}
* do not match the dimensions of {@code base} and {@code derivedCS} respectively.
*
* @see org.apache.sis.referencing.factory.GeodeticObjectFactory#createProjectedCRS(Map, GeographicCRS, Conversion, CartesianCS)
*/
public DefaultProjectedCRS(final Map<String,?> properties,
final GeographicCRS baseCRS,
final Conversion conversion,
final CartesianCS derivedCS)
throws MismatchedDimensionException
{
super(properties, baseCRS, conversion, derivedCS);
}
/**
* Constructs a new coordinate reference system with the same values than the specified one.
* This copy constructor provides a way to convert an arbitrary implementation into a SIS one
* or a user-defined one (as a subclass), usually in order to leverage some implementation-specific API.
*
* <p>This constructor performs a shallow copy, i.e. the properties are not cloned.</p>
*
* @param crs the coordinate reference system to copy.
*
* @see #castOrCopy(ProjectedCRS)
*/
protected DefaultProjectedCRS(final ProjectedCRS crs) {
super(crs);
}
/**
* Returns a SIS coordinate reference system implementation with the same values than the given
* arbitrary implementation. If the given object is {@code null}, then this method returns {@code null}.
* Otherwise if the given object is already a SIS implementation, then the given object is returned unchanged.
* Otherwise a new SIS implementation is created and initialized to the attribute values of the given object.
*
* @param object the object to get as a SIS implementation, or {@code null} if none.
* @return a SIS implementation containing the values of the given object (may be the
* given object itself), or {@code null} if the argument was null.
*/
public static DefaultProjectedCRS castOrCopy(final ProjectedCRS object) {
return (object == null) || (object instanceof DefaultProjectedCRS)
? (DefaultProjectedCRS) object : new DefaultProjectedCRS(object);
}
/**
* Returns the type of conversion associated to this {@code DefaultProjectedCRS}.
* Must be a hard-coded, constant value (not dependent on object state).
*/
@Override
final Class<Projection> getConversionType() {
return Projection.class;
}
/**
* Returns the GeoAPI interface implemented by this class.
* The SIS implementation returns {@code ProjectedCRS.class}.
*
* <div class="note"><b>Note for implementers:</b>
* Subclasses usually do not need to override this method since GeoAPI does not define {@code ProjectedCRS}
* sub-interface. Overriding possibility is left mostly for implementers who wish to extend GeoAPI with
* their own set of interfaces.</div>
*
* @return {@code ProjectedCRS.class} or a user-defined sub-interface.
*/
@Override
public Class<? extends ProjectedCRS> getInterface() {
return ProjectedCRS.class;
}
/**
* Returns the datum of the {@linkplain #getBaseCRS() base CRS}.
*
* @return the datum of the base CRS.
*/
@Override
public GeodeticDatum getDatum() {
return getBaseCRS().getDatum();
}
/**
* Returns the geographic CRS on which the map projection is applied.
* This CRS defines the {@linkplain #getDatum() datum} of this CRS and (at least implicitly)
* the {@linkplain org.apache.sis.referencing.operation.DefaultConversion#getSourceCRS() source}
* of the {@linkplain #getConversionFromBase() conversion from base}.
*
* @return the base coordinate reference system, which must be geographic.
*/
@Override
@XmlElement(name = "baseGeodeticCRS", required = true) // Note: older GML version used "baseGeographicCRS".
public GeographicCRS getBaseCRS() {
final Projection projection = super.getConversionFromBase();
return (projection != null) ? projection.getSourceCRS() : null;
}
/**
* Returns the map projection from the {@linkplain #getBaseCRS() base CRS} to this CRS.
* In Apache SIS, the conversion source and target CRS are set to the following values:
*
* <ul>
* <li>The conversion {@linkplain org.apache.sis.referencing.operation.DefaultConversion#getSourceCRS()
* source CRS} is the {@linkplain #getBaseCRS() base CRS} of {@code this} CRS.</li>
* <li>The conversion {@linkplain org.apache.sis.referencing.operation.DefaultConversion#getTargetCRS()
* target CRS} is {@code this} CRS.
* </ul>
*
* <div class="note"><b>Note:</b>
* This is different than ISO 19111, which allows source and target CRS to be {@code null}.</div>
*
* @return the map projection from base CRS to this CRS.
*/
@Override
public Projection getConversionFromBase() {
return super.getConversionFromBase();
}
/**
* Returns the coordinate system.
*/
@Override
@XmlElement(name = "cartesianCS", required = true)
public final CartesianCS getCoordinateSystem() {
/*
* See AbstractDerivedCRS.createConversionFromBase(…) for
* an explanation about why this method is declared final.
*/
return (CartesianCS) super.getCoordinateSystem();
}
/**
* {@inheritDoc}
*
* @return {@inheritDoc}
*/
@Override
public DefaultProjectedCRS forConvention(final AxesConvention convention) {
return (DefaultProjectedCRS) super.forConvention(convention);
}
/**
* Returns a coordinate reference system of the same type than this CRS but with different axes.
*/
@Override
final AbstractCRS createSameType(final Map<String,?> properties, final CoordinateSystem cs) {
final Projection conversion = super.getConversionFromBase();
return new DefaultProjectedCRS(properties, conversion.getSourceCRS(), conversion, (CartesianCS) cs);
}
/**
* Compares this coordinate reference system with the specified object for equality.
* In addition to the metadata documented in the
* {@linkplain org.apache.sis.referencing.AbstractIdentifiedObject#equals(Object, ComparisonMode) parent class},
* this method considers coordinate system axes of the {@linkplain #getBaseCRS() base CRS} as metadata.
* This means that if the given {@code ComparisonMode} is {@code IGNORE_METADATA} or {@code APPROXIMATE},
* then axis order of the base geographic CRS are ignored
* (but <strong>not</strong> axis order of <strong>this</strong> projected CRS).
*
* @param object the object to compare to {@code this}.
* @param mode {@link ComparisonMode#STRICT STRICT} for performing a strict comparison, or
* {@link ComparisonMode#IGNORE_METADATA IGNORE_METADATA} for comparing only
* properties relevant to coordinate transformations.
* @return {@code true} if both objects are equal.
*/
@Override
public boolean equals(final Object object, final ComparisonMode mode) {
return super.equals(object, mode);
}
/**
* {@inheritDoc}
*
* @return {@inheritDoc}
*/
@Override
protected long computeHashCode() {
return super.computeHashCode();
}
/**
* Formats the inner part of the <cite>Well Known Text</cite> (WKT) representation of this CRS.
*
* <div class="note"><b>Example:</b> Well-Known Text (version 2)
* of a projected coordinate reference system using the Lambert Conformal method.
*
* {@preformat wkt
* ProjectedCRS[“NTF (Paris) / Lambert zone II”,
* BaseGeodCRS[“NTF (Paris)”,
* Datum[“Nouvelle Triangulation Francaise”,
* Ellipsoid[“NTF”, 6378249.2, 293.4660212936269, LengthUnit[“metre”, 1]]],
* PrimeMeridian[“Paris”, 2.5969213, AngleUnit[“grad”, 0.015707963267948967]]],
* Conversion[“Lambert zone II”,
* Method[“Lambert Conic Conformal (1SP)”, Id[“EPSG”, 9801, Citation[“IOGP”]]],
* Parameter[“Latitude of natural origin”, 52.0, AngleUnit[“grad”, 0.015707963267948967], Id[“EPSG”, 8801]],
* Parameter[“Longitude of natural origin”, 0.0, AngleUnit[“degree”, 0.017453292519943295], Id[“EPSG”, 8802]],
* Parameter[“Scale factor at natural origin”, 0.99987742, ScaleUnit[“unity”, 1], Id[“EPSG”, 8805]],
* Parameter[“False easting”, 600000.0, LengthUnit[“metre”, 1], Id[“EPSG”, 8806]],
* Parameter[“False northing”, 2200000.0, LengthUnit[“metre”, 1], Id[“EPSG”, 8807]]],
* CS[“Cartesian”, 2],
* Axis[“Easting (E)”, east, Order[1]],
* Axis[“Northing (N)”, north, Order[2]],
* LengthUnit[“metre”, 1],
* Id[“EPSG”, 27572, Citation[“IOGP”], URI[“urn:ogc:def:crs:EPSG::27572”]]]
* }
*
* <p>Same coordinate reference system using WKT 1.</p>
*
* {@preformat wkt
* PROJCS[“NTF (Paris) / Lambert zone II”,
* GEOGCS[“NTF (Paris)”,
* DATUM[“Nouvelle Triangulation Francaise”,
* SPHEROID[“NTF”, 6378249.2, 293.4660212936269]],
* PRIMEM[“Paris”, 2.33722917],
* UNIT[“degree”, 0.017453292519943295],
* AXIS[“Longitude”, EAST],
* AXIS[“Latitude”, NORTH]],
* PROJECTION[“Lambert_Conformal_Conic_1SP”, AUTHORITY[“EPSG”, “9801”]],
* PARAMETER[“latitude_of_origin”, 46.8],
* PARAMETER[“central_meridian”, 0.0],
* PARAMETER[“scale_factor”, 0.99987742],
* PARAMETER[“false_easting”, 600000.0],
* PARAMETER[“false_northing”, 2200000.0],
* UNIT[“metre”, 1],
* AXIS[“Easting”, EAST],
* AXIS[“Northing”, NORTH],
* AUTHORITY[“EPSG”, “27572”]]
* }
* </div>
*
* @return {@code "ProjectedCRS"} (WKT 2) or {@code "ProjCS"} (WKT 1).
*
* @see <a href="http://docs.opengeospatial.org/is/12-063r5/12-063r5.html#57">WKT 2 specification §9</a>
*/
@Override
protected String formatTo(final Formatter formatter) {
if (super.getConversionFromBase() == null) {
/*
* Should never happen except temporarily at construction time, or if the user invoked the copy constructor
* with an invalid Conversion. Delegates to the super-class method for avoiding a NullPointerException.
* That method returns 'null', which will cause the WKT to be declared invalid.
*/
return super.formatTo(formatter);
}
WKTUtilities.appendName(this, formatter, null);
final Convention convention = formatter.getConvention();
final boolean isWKT1 = (convention.majorVersion() == 1);
final CartesianCS cs = getCoordinateSystem();
final GeographicCRS baseCRS = getBaseCRS();
final Unit<?> lengthUnit = ReferencingUtilities.getUnit(cs);
final Unit<Angle> angularUnit = AxisDirections.getAngularUnit(baseCRS.getCoordinateSystem(), null);
final Unit<Angle> oldAngle = formatter.addContextualUnit(angularUnit);
final Unit<?> oldLength = formatter.addContextualUnit(lengthUnit);
/*
* Format the enclosing base CRS. Note that WKT 1 formats a full GeographicCRS while WKT 2 formats only
* the datum with the prime meridian (no coordinate system) and uses a different keyword ("BaseGeodCRS"
* instead of "GeodeticCRS"). The DefaultGeodeticCRS.formatTo(Formatter) method detects when the CRS to
* format is part of an enclosing ProjectedCRS and will adapt accordingly.
*/
formatter.newLine();
formatter.append(toFormattable(baseCRS));
formatter.newLine();
final ExplicitParameters p = new ExplicitParameters(this, WKTKeywords.Conversion);
final boolean isBaseCRS;
if (isWKT1) {
p.append(formatter); // Format outside of any "Conversion" element.
isBaseCRS = false;
} else {
formatter.append(p); // Format inside a "Conversion" element.
isBaseCRS = isBaseCRS(formatter);
}
/*
* In WKT 2 format, the coordinate system axes are written only if this projected CRS is not the base CRS
* of another derived CRS.
*/
if (!isBaseCRS || convention == Convention.INTERNAL) {
formatCS(formatter, cs, lengthUnit, isWKT1);
}
formatter.restoreContextualUnit(lengthUnit, oldLength);
formatter.restoreContextualUnit(angularUnit, oldAngle);
return isWKT1 ? WKTKeywords.ProjCS : isBaseCRS ? WKTKeywords.BaseProjCRS
: formatter.shortOrLong(WKTKeywords.ProjCRS, WKTKeywords.ProjectedCRS);
}
//////////////////////////////////////////////////////////////////////////////////////////////////
//////// ////////
//////// XML support with JAXB ////////
//////// ////////
//////// The following methods are invoked by JAXB using reflection (even if ////////
//////// they are private) or are helpers for other methods invoked by JAXB. ////////
//////// Those methods can be safely removed if Geographic Markup Language ////////
//////// (GML) support is not needed. ////////
//////// ////////
//////////////////////////////////////////////////////////////////////////////////////////////////
/**
* Constructs a new object in which every attributes are set to a default value.
* <strong>This is not a valid object.</strong> This constructor is strictly
* reserved to JAXB, which will assign values to the fields using reflexion.
*/
private DefaultProjectedCRS() {
}
/**
* Used by JAXB only (invoked by reflection).
*
* @see #getBaseCRS()
*/
private void setBaseCRS(final GeographicCRS crs) {
setBaseCRS("baseGeodeticCRS", crs);
}
/**
* Used by JAXB only (invoked by reflection).
*
* @see #getCoordinateSystem()
*/
private void setCoordinateSystem(final CartesianCS cs) {
setCoordinateSystem("cartesianCS", cs);
}
}