source: josm/trunk/src/org/openstreetmap/josm/io/GpxWriter.java@ 343

Last change on this file since 343 was 343, checked in by gebner, 17 years ago

Merge 0.5.
File size: 6.7 KB
Line 
1// License: GPL. Copyright 2007 by Immanuel Scholz and others
2package org.openstreetmap.josm.io;
3
4import java.io.PrintWriter;
5import java.util.Collection;
6import java.util.LinkedList;
7
8import org.openstreetmap.josm.data.Bounds;
9import org.openstreetmap.josm.data.coor.LatLon;
10import org.openstreetmap.josm.data.osm.DataSet;
11import org.openstreetmap.josm.data.osm.Node;
12import org.openstreetmap.josm.data.osm.OsmPrimitive;
13import org.openstreetmap.josm.data.osm.Way;
14import org.openstreetmap.josm.gui.layer.RawGpsLayer.GpsPoint;
15
16/**
17 * Exports a dataset to GPX data. All information available are tried to store in
18 * the gpx. If no corresponding tag is available in GPX, use
19 * <code>&lt;extensions&gt;</code> instead.
20 *
21 * GPX-Way segments are stored as 2-node-pairs, so no &lt;trkseg&gt; with more
22 * or less than 2 &lt;trkpt&gt; are exported.
23 *
24 * @author imi
25 */
26public class GpxWriter extends XmlWriter {
27
28 public GpxWriter(PrintWriter out) {
29 super(out);
30 }
31
32 /**
33 * Export the dataset to gpx. The ways are converted to trksegs, each in
34 * a seperate trk. Finally, all remaining nodes are added as wpt.
35 */
36 public static final class All implements XmlWriter.OsmWriterInterface {
37 private final DataSet data;
38 private final String name;
39 private final String desc;
40 private final String author;
41 private final String email;
42 private final String copyright;
43 private final String year;
44 private final String keywords;
45 private boolean metadataClosed = false;
46
47 public All(DataSet data, String name, String desc, String author, String email, String copyright, String year, String keywords) {
48 this.data = data;
49 this.name = name;
50 this.desc = desc;
51 this.author = author;
52 this.email = email;
53 this.copyright = copyright;
54 this.year = year;
55 this.keywords = keywords;
56 }
57
58 public void header(PrintWriter out) {
59 out.println("<gpx version='1.1' creator='JOSM' xmlns='http://www.topografix.com/GPX/1/1'>");
60 out.println(" <metadata>");
61 if (!name.equals(""))
62 out.println(" <name>"+XmlWriter.encode(name)+"</name>");
63 if (!desc.equals(""))
64 out.println(" <desc>"+XmlWriter.encode(desc)+"</desc>");
65 if (!author.equals("")) {
66 out.println(" <author>");
67 out.println(" <name>"+XmlWriter.encode(author)+"</name>");
68 if (!email.equals(""))
69 out.println(" <email>"+XmlWriter.encode(email)+"</email>");
70 out.println(" </author>");
71 if (!copyright.equals("")) {
72 out.println(" <copyright author='"+XmlWriter.encode(author)+"'>");
73 if (!year.equals(""))
74 out.println(" <year>"+XmlWriter.encode(year)+"</year>");
75 out.println(" <license>"+XmlWriter.encode(copyright)+"</license>");
76 out.println(" </copyright>");
77 }
78 }
79 if (!keywords.equals("")) {
80 out.println(" <keywords>"+XmlWriter.encode(keywords)+"</keywords>");
81 }
82 // don't finish here, to give output functions the chance to add <bounds>
83 }
84
85 public void write(PrintWriter out) {
86 Collection<OsmPrimitive> all = data.allNonDeletedPrimitives();
87 if (all.isEmpty())
88 return;
89 GpxWriter writer = new GpxWriter(out);
90 // calculate bounds
91 Bounds b = new Bounds(new LatLon(Double.MAX_VALUE, Double.MAX_VALUE), new LatLon(-Double.MAX_VALUE, -Double.MAX_VALUE));
92 for (Node n : data.nodes)
93 if (!n.deleted)
94 b.extend(n.coor);
95 out.println(" <bounds minlat='"+b.min.lat()+"' minlon='"+b.min.lon()+"' maxlat='"+b.max.lat()+"' maxlon='"+b.max.lon()+"' />");
96 out.println(" </metadata>");
97 metadataClosed = true;
98
99 // add ways
100 for (Way w : data.ways) {
101 if (w.deleted)
102 continue;
103 out.println(" <trk>");
104 out.println(" <trkseg>");
105 for (Node n : w.nodes) {
106 writer.outputNode(n, false);
107 all.remove(n);
108 }
109 out.println(" </trkseg>");
110 out.println(" </trk>");
111 all.remove(w);
112 }
113
114 // finally add the remaining nodes
115 for (OsmPrimitive osm : all)
116 if (osm instanceof Node)
117 writer.outputNode((Node)osm, true);
118 }
119
120 public void footer(PrintWriter out) {
121 if (!metadataClosed)
122 out.println(" </metadata>");
123 out.println("</gpx>");
124 }
125 }
126
127
128 /**
129 * Export the collection structure to gpx. The gpx will consists of only one
130 * trk with as many trkseg as there are collections in the outer collection.
131 */
132 public static final class Trk implements XmlWriter.OsmWriterInterface {
133 private final Collection<Collection<GpsPoint>> data;
134 public Trk(Collection<Collection<GpsPoint>> data) {
135 this.data = data;
136 }
137
138 public void header(PrintWriter out) {
139 out.println("<gpx version='1.1' creator='JOSM' xmlns='http://www.topografix.com/GPX/1/1'>");
140 }
141
142 public void write(PrintWriter out) {
143 if (data.size() == 0)
144 return;
145 // calculate bounds
146 Bounds b = new Bounds(new LatLon(Double.MAX_VALUE, Double.MAX_VALUE), new LatLon(Double.MIN_VALUE, Double.MIN_VALUE));
147 for (Collection<GpsPoint> c : data)
148 for (GpsPoint p : c)
149 b.extend(p.latlon);
150 out.println(" <metadata>");
151 out.println(" <bounds minlat='"+b.min.lat()+"' minlon='"+b.min.lon()+"' maxlat='"+b.max.lat()+"' maxlon='"+b.max.lon()+"' />");
152 out.println(" </metadata>");
153
154 out.println(" <trk>");
155 for (Collection<GpsPoint> c : data) {
156 out.println(" <trkseg>");
157 LatLon last = null;
158 for (GpsPoint p : c) {
159 // skip double entries
160 if (p.latlon.equals(last))
161 continue;
162 last = p.latlon;
163 LatLon ll = p.latlon;
164 out.print(" <trkpt lat='"+ll.lat()+"' lon='"+ll.lon()+"'");
165 if (p.time != null && p.time.length()!=0) {
166 out.println(">");
167 out.println(" <time>"+p.time+"</time>");
168 out.println(" </trkpt>");
169 } else
170 out.println(" />");
171 }
172 out.println(" </trkseg>");
173 }
174 out.println(" </trk>");
175 }
176
177 public void footer(PrintWriter out) {
178 out.println("</gpx>");
179 }
180 }
181
182 private void outputNode(Node n, boolean wpt) {
183 out.print((wpt?" <wpt":" <trkpt")+" lat='"+n.coor.lat()+"' lon='"+n.coor.lon()+"'");
184 if (n.keys == null) {
185 out.println(" />");
186 return;
187 }
188 boolean found = false;
189 String[] possibleKeys = {"ele", "time", "magvar", "geoidheight", "name",
190 "cmt", "desc", "src", "link", "sym", "type", "fix", "sat",
191 "hdop", "vdop", "pdop", "ageofgpsdata", "dgpsid"};
192 Collection<String> keys = n.keySet();
193 for (String k : possibleKeys) {
194 if (keys.contains(k)) {
195 if (!found) {
196 found = true;
197 out.println(">");
198 }
199 if (k.equals("link")) {
200 out.println(" <link>");
201 out.println(" <text>"+XmlWriter.encode(n.get(k))+"</text>");
202 out.println(" </link>");
203 } else
204 out.println(" <"+k+">"+XmlWriter.encode(n.get(k))+"</"+k+">");
205 }
206 }
207 if (found)
208 out.println(wpt?" </wpt>":" </trkpt>");
209 else
210 out.println(" />");
211 }
212}
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