001 /*
002 * GeoAPI - Java interfaces for OGC/ISO standards
003 * http://www.geoapi.org
004 *
005 * Copyright (C) 2005-2012 Open Geospatial Consortium, Inc.
006 * All Rights Reserved. http://www.opengeospatial.org/ogc/legal
007 *
008 * Permission to use, copy, and modify this software and its documentation, with
009 * or without modification, for any purpose and without fee or royalty is hereby
010 * granted, provided that you include the following on ALL copies of the software
011 * and documentation or portions thereof, including modifications, that you make:
012 *
013 * 1. The full text of this NOTICE in a location viewable to users of the
014 * redistributed or derivative work.
015 * 2. Notice of any changes or modifications to the OGC files, including the
016 * date changes were made.
017 *
018 * THIS SOFTWARE AND DOCUMENTATION IS PROVIDED "AS IS," AND COPYRIGHT HOLDERS MAKE
019 * NO REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
020 * TO, WARRANTIES OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE OR THAT
021 * THE USE OF THE SOFTWARE OR DOCUMENTATION WILL NOT INFRINGE ANY THIRD PARTY
022 * PATENTS, COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS.
023 *
024 * COPYRIGHT HOLDERS WILL NOT BE LIABLE FOR ANY DIRECT, INDIRECT, SPECIAL OR
025 * CONSEQUENTIAL DAMAGES ARISING OUT OF ANY USE OF THE SOFTWARE OR DOCUMENTATION.
026 *
027 * The name and trademarks of copyright holders may NOT be used in advertising or
028 * publicity pertaining to the software without specific, written prior permission.
029 * Title to copyright in this software and any associated documentation will at all
030 * times remain with copyright holders.
031 */
032 package org.opengis.geometry.coordinate;
033
034 import java.util.List;
035 import java.util.Set;
036 import org.opengis.annotation.UML;
037
038 import static org.opengis.annotation.Obligation.*;
039 import static org.opengis.annotation.Specification.*;
040
041
042 /**
043 * A triangulated surface that uses the Delaunay algorithm or a similar algorithm complemented
044 * with consideration for breaklines, stoplines and maximum length of triangle sides. These
045 * networks satisfy the Delaunay criterion away from the modifications: For each triangle in
046 * the network, the circle passing through its vertexes does not contain, in its interior, the
047 * vertex of any other triangle.
048 *
049 * @version <A HREF="http://www.opengeospatial.org/standards/as">ISO 19107</A>
050 * @author Martin Desruisseaux (IRD)
051 * @since GeoAPI 2.0
052 *
053 * @see GeometryFactory#createTin
054 */
055 @UML(identifier="GM_Tin", specification=ISO_19107)
056 public interface Tin extends TriangulatedSurface {
057 /**
058 * Stoplines are lines where the local continuity or regularity of the surface is questionable.
059 * In the area of these pathologies, triangles intersecting a stopline shall be removed from
060 * the TIN surface, leaving holes in the surface. If coincidence occurs on surface boundary
061 * triangles, the result shall be a change of the surface boundary. The attribute
062 * {@code stopLines} contains all these pathological segments as a set of line strings.
063 */
064 @UML(identifier="stopLines", obligation=MANDATORY, specification=ISO_19107)
065 Set<LineString> getStopLines();
066
067 /**
068 * Breaklines are lines of a critical nature to the shape of the surface, representing local
069 * ridges, or depressions (such as drainage lines) in the surface. As such their constituent
070 * segments must be included in the TIN even if doing so violates the Delaunay criterion. The
071 * attribute {@code breakLines} contains these critical segments as a set of line strings.
072 */
073 @UML(identifier="breakLines", obligation=MANDATORY, specification=ISO_19107)
074 Set<LineString> getBreakLines();
075
076 /**
077 * Maximal length for retention.
078 * Areas of the surface where the data is not sufficiently dense to assure reasonable
079 * calculations shall be removed by adding a retention criterion for triangles based
080 * on the length of their sides. For any triangle sides exceeding maximum length, the
081 * adjacent triangles to that triangle side shall be removed from the surface.
082 */
083 @UML(identifier="maxLength", obligation=MANDATORY, specification=ISO_19107)
084 double getMaxLength();
085
086 /**
087 * The corners of the triangles in the TIN are often referred to as posts. The attribute
088 * {@code controlPoint} shall contain a set of the {@linkplain Position positions} used
089 * as posts for this TIN. Since each TIN contains triangles, there must be at least 3 posts.
090 * The order in which these points are given does not affect the surface that is represented.
091 * Application schemas may add information based on the ordering of the control points to
092 * facilitate the reconstruction of the TIN from the control points.
093 */
094 @UML(identifier="controlPoint", obligation=MANDATORY, specification=ISO_19107)
095 List<Position> getControlPoints();
096 }