Source Code Cross Referenced for LineStringSegmentTypeBinding.java in  » GIS » GeoTools-2.4.1 » org » geotools » gml3 » bindings » Java Source Code / Java DocumentationJava Source Code and Java Documentation

001:        /*
002:         *    GeoTools - OpenSource mapping toolkit
003:         *    http://geotools.org
004:         *    (C) 2002-2006, GeoTools Project Managment Committee (PMC)
005:         *
006:         *    This library is free software; you can redistribute it and/or
007:         *    modify it under the terms of the GNU Lesser General Public
008:         *    License as published by the Free Software Foundation;
009:         *    version 2.1 of the License.
010:         *
011:         *    This library is distributed in the hope that it will be useful,
012:         *    but WITHOUT ANY WARRANTY; without even the implied warranty of
013:         *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
014:         *    Lesser General Public License for more details.
015:         */
016:        package org.geotools.gml3.bindings;
017:
018:        import javax.xml.namespace.QName;
019:        import com.vividsolutions.jts.geom.CoordinateSequenceFactory;
020:        import com.vividsolutions.jts.geom.GeometryFactory;
021:        import com.vividsolutions.jts.geom.LineString;
022:        import org.geotools.gml.GMLException;
023:        import org.geotools.xml.*;
024:
025:        /**
026:         * Binding object for the type http://www.opengis.net/gml:LineStringSegmentType.
027:         *
028:         * <p>
029:         *        <pre>
030:         *         <code>
031:         *  &lt;complexType name="LineStringSegmentType"&gt;
032:         *      &lt;annotation&gt;
033:         *          &lt;documentation&gt;A LineStringSegment is a curve segment that is defined by two or more coordinate tuples, with linear interpolation between them.
034:         *                                  Note: LineStringSegment implements GM_LineString of ISO 19107.&lt;/documentation&gt;
035:         *      &lt;/annotation&gt;
036:         *      &lt;complexContent&gt;
037:         *          &lt;extension base="gml:AbstractCurveSegmentType"&gt;
038:         *              &lt;sequence&gt;
039:         *                  &lt;choice&gt;
040:         *                      &lt;annotation&gt;
041:         *                          &lt;documentation&gt;GML supports two different ways to specify the control points of a curve segment.
042:         *  1. A sequence of "pos" (DirectPositionType) or "pointProperty" (PointPropertyType) elements. "pos" elements are control points that are only part of this curve segment, "pointProperty" elements contain a point that may be referenced from other geometry elements or reference another point defined outside of this curve segment (reuse of existing points).
043:         *  2. The "posList" element allows for a compact way to specifiy the coordinates of the control points, if all control points are in the same coordinate reference systems and belong to this curve segment only. The number of direct positions in the list must be at least two.&lt;/documentation&gt;
044:         *                      &lt;/annotation&gt;
045:         *                      &lt;choice maxOccurs="unbounded" minOccurs="2"&gt;
046:         *                          &lt;element ref="gml:pos"/&gt;
047:         *                          &lt;element ref="gml:pointProperty"/&gt;
048:         *                          &lt;element ref="gml:pointRep"&gt;
049:         *                              &lt;annotation&gt;
050:         *                                  &lt;documentation&gt;Deprecated with GML version 3.1.0. Use "pointProperty" instead. Included for backwards compatibility with GML 3.0.0.&lt;/documentation&gt;
051:         *                              &lt;/annotation&gt;
052:         *                          &lt;/element&gt;
053:         *                      &lt;/choice&gt;
054:         *                      &lt;element ref="gml:posList"/&gt;
055:         *                      &lt;element ref="gml:coordinates"&gt;
056:         *                          &lt;annotation&gt;
057:         *                              &lt;documentation&gt;Deprecated with GML version 3.1.0. Use "posList" instead.&lt;/documentation&gt;
058:         *                          &lt;/annotation&gt;
059:         *                      &lt;/element&gt;
060:         *                  &lt;/choice&gt;
061:         *              &lt;/sequence&gt;
062:         *              &lt;attribute fixed="linear" name="interpolation" type="gml:CurveInterpolationType"&gt;
063:         *                  &lt;annotation&gt;
064:         *                      &lt;documentation&gt;The attribute "interpolation" specifies the curve interpolation mechanism used for this segment. This mechanism
065:         *  uses the control points and control parameters to determine the position of this curve segment. For a LineStringSegment the interpolation is fixed as "linear".&lt;/documentation&gt;
066:         *                  &lt;/annotation&gt;
067:         *              &lt;/attribute&gt;
068:         *          &lt;/extension&gt;
069:         *      &lt;/complexContent&gt;
070:         *  &lt;/complexType&gt;
071:         *
072:         *          </code>
073:         *         </pre>
074:         * </p>
075:         *
076:         * @generated
077:         */
078:        public class LineStringSegmentTypeBinding extends
079:                AbstractComplexBinding {
080:            GeometryFactory gf;
081:            CoordinateSequenceFactory csf;
082:
083:            public LineStringSegmentTypeBinding(GeometryFactory gf,
084:                    CoordinateSequenceFactory csf) {
085:                this .gf = gf;
086:                this .csf = csf;
087:            }
088:
089:            /**
090:             * @generated
091:             */
092:            public QName getTarget() {
093:                return GML.LineStringSegmentType;
094:            }
095:
096:            /**
097:             * <!-- begin-user-doc -->
098:             * <!-- end-user-doc -->
099:             *
100:             * @generated modifiable
101:             */
102:            public Class getType() {
103:                return LineString.class;
104:            }
105:
106:            /**
107:             * <!-- begin-user-doc -->
108:             * <!-- end-user-doc -->
109:             *
110:             * @generated modifiable
111:             */
112:            public Object parse(ElementInstance instance, Node node,
113:                    Object value) throws Exception {
114:                return GML3ParsingUtils.lineString(node, gf, csf);
115:            }
116:
117:            public Object getProperty(Object object, QName name)
118:                    throws Exception {
119:                if (GML.posList.equals(name)) {
120:                    return GML3EncodingUtils.positions((LineString) object);
121:                }
122:
123:                if ("interpolation".equals(name.getLocalPart())) {
124:                    return "linear";
125:                }
126:
127:                return null;
128:            }
129:        }