org.opengis.referencing.package-info Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of geoapi Show documentation

The development community in building GIS solutions is sustaining an enormous level of effort. The GeoAPI project aims to reduce duplication and increase interoperability by providing neutral, interface-only APIs derived from OGC/ISO Standards.

There is a newer version: 3.0.2

Show newest version

/*
 *    GeoAPI - Java interfaces for OGC/ISO standards
 *    http://www.geoapi.org
 *
 *    Copyright (C) 2004-2011 Open Geospatial Consortium, Inc.
 *    All Rights Reserved. http://www.opengeospatial.org/ogc/legal
 *
 *    Permission to use, copy, and modify this software and its documentation, with
 *    or without modification, for any purpose and without fee or royalty is hereby
 *    granted, provided that you include the following on ALL copies of the software
 *    and documentation or portions thereof, including modifications, that you make:
 *
 *    1. The full text of this NOTICE in a location viewable to users of the
 *       redistributed or derivative work.
 *    2. Notice of any changes or modifications to the OGC files, including the
 *       date changes were made.
 *
 *    THIS SOFTWARE AND DOCUMENTATION IS PROVIDED "AS IS," AND COPYRIGHT HOLDERS MAKE
 *    NO REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
 *    TO, WARRANTIES OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE OR THAT
 *    THE USE OF THE SOFTWARE OR DOCUMENTATION WILL NOT INFRINGE ANY THIRD PARTY
 *    PATENTS, COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS.
 *
 *    COPYRIGHT HOLDERS WILL NOT BE LIABLE FOR ANY DIRECT, INDIRECT, SPECIAL OR
 *    CONSEQUENTIAL DAMAGES ARISING OUT OF ANY USE OF THE SOFTWARE OR DOCUMENTATION.
 *
 *    The name and trademarks of copyright holders may NOT be used in advertising or
 *    publicity pertaining to the software without specific, written prior permission.
 *    Title to copyright in this software and any associated documentation will at all
 *    times remain with copyright holders.
 */

/**
 * {@linkplain org.opengis.referencing.ReferenceSystem Reference systems}. The following is adapted from
 * {@linkplain org.opengis.annotation.Specification#ISO_19111 OpenGIS® Spatial Referencing by
 * Coordinates (Topic 2)} specification.
 *
 * A reference system contains the metadata required to
 * interpret spatial location information unambiguously. The description of
 * an object's attributes can be done explicitly, by providing all defining
 * parameters, or by identifier, a reference to a recognised source that contains
 * a full description of the object.
 *
 * The {@link org.opengis.referencing.IdentifiedObject} interface contains
 * attributes common to several objects used in spatial referencing by coordinates. For example,
 * a {@linkplain org.opengis.referencing.datum.Datum datum} name might be "North American Datum
 * of 1983". This may have alternative names or aliases, for example the abbreviation "NAD83".
 * Object {@linkplain org.opengis.referencing.IdentifiedObject#getName primary names} have a data type
 * {@link org.opengis.metadata.Identifier} whilst {@linkplain org.opengis.referencing.IdentifiedObject#getAlias aliases}
 * have a data type {@link org.opengis.util.GenericName}.
 *
 * Another attribute is {@linkplain org.opengis.referencing.IdentifiedObject#getIdentifiers identifiers}.
 * This is a unique code used to reference an object in a given place. For example, an external geodetic register might
 * give the NAD83 datum a unique code of "6269". Identifiers have a data type of {@link org.opengis.metadata.Identifier}.
 * In addition to the use of an identifier as a reference to a definition in a remote register, it may also be included
 * in an object definition to allow remote users to refer to the object.
 *
 * Most interfaced objects are immutable. This means that implementations promise
 * not to change an object's internal state once they have handed out an interface pointer. Since
 * most interfaced objects are specified to be immutable, there do not need to be any constraints
 * on operation sequencing. This means that these interfaces can be used in parallel computing
 * environments (e.g. internet servers).
 *
 * Well-Known Text format
 * Many entities in this specification can be printed in a well-known text
 * format. This allows objects to be stored in databases (persistence), and transmitted between
 * interoperating computer programs. The definition for WKT is
 * shown using Extended Backus Naur Form (EBNF).
 *
 * @author  Martin Desruisseaux (IRD)
 * @author  Ely Conn (Leica Geosystems Geospatial Imaging, LLC)
 * @version 3.0
 * @since   1.0
 */
package org.opengis.referencing;