svn-gvsig-desktop / trunk / libraries / libGPE-KML / src / org / gvsig / gpe / kml / parser / v21 / coordinates / CoordinatesTypeIterator.java @ 19680
History | View | Annotate | Download (5.65 KB)
1 |
package org.gvsig.gpe.kml.parser.v21.coordinates; |
---|---|
2 |
|
3 |
import java.io.IOException; |
4 |
import java.util.StringTokenizer; |
5 |
|
6 |
import org.gvsig.gpe.kml.parser.GPEDeafultKmlParser; |
7 |
import org.gvsig.gpe.kml.parser.v21.geometries.DoubleBinding; |
8 |
import org.gvsig.gpe.kml.utils.KmlTags; |
9 |
import org.gvsig.gpe.utils.StringUtils; |
10 |
import org.gvsig.gpe.xml.stream.XmlStreamException; |
11 |
import org.gvsig.gpe.xml.stream.IXmlStreamReader; |
12 |
import org.gvsig.gpe.xml.utils.CompareUtils; |
13 |
|
14 |
/* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
|
15 |
*
|
16 |
* Copyright (C) 2004 IVER T.I. and Generalitat Valenciana.
|
17 |
*
|
18 |
* This program is free software; you can redistribute it and/or
|
19 |
* modify it under the terms of the GNU General Public License
|
20 |
* as published by the Free Software Foundation; either version 2
|
21 |
* of the License, or (at your option) any later version.
|
22 |
*
|
23 |
* This program is distributed in the hope that it will be useful,
|
24 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
25 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
26 |
* GNU General Public License for more details.
|
27 |
*
|
28 |
* You should have received a copy of the GNU General Public License
|
29 |
* along with this program; if not, write to the Free Software
|
30 |
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
|
31 |
*
|
32 |
* For more information, contact:
|
33 |
*
|
34 |
* Generalitat Valenciana
|
35 |
* Conselleria d'Infraestructures i Transport
|
36 |
* Av. Blasco Ib??ez, 50
|
37 |
* 46010 VALENCIA
|
38 |
* SPAIN
|
39 |
*
|
40 |
* +34 963862235
|
41 |
* gvsig@gva.es
|
42 |
* www.gvsig.gva.es
|
43 |
*
|
44 |
* or
|
45 |
*
|
46 |
* IVER T.I. S.A
|
47 |
* Salamanca 50
|
48 |
* 46005 Valencia
|
49 |
* Spain
|
50 |
*
|
51 |
* +34 963163400
|
52 |
* dac@iver.es
|
53 |
*/
|
54 |
/* CVS MESSAGES:
|
55 |
*
|
56 |
* $Id:CoordinatesTypeBinding.java 357 2008-01-09 17:50:08Z jpiera $
|
57 |
* $Log$
|
58 |
* Revision 1.2 2007/06/07 14:53:59 jorpiell
|
59 |
* Add the schema support
|
60 |
*
|
61 |
* Revision 1.1 2007/05/11 07:06:29 jorpiell
|
62 |
* Refactoring of some package names
|
63 |
*
|
64 |
* Revision 1.4 2007/05/09 08:36:24 jorpiell
|
65 |
* Add the bbox to the layer
|
66 |
*
|
67 |
* Revision 1.3 2007/05/08 08:22:37 jorpiell
|
68 |
* Add comments to create javadocs
|
69 |
*
|
70 |
* Revision 1.2 2007/04/14 16:08:07 jorpiell
|
71 |
* Kml writing support added
|
72 |
*
|
73 |
* Revision 1.1 2007/04/13 13:16:21 jorpiell
|
74 |
* Add KML reading support
|
75 |
*
|
76 |
* Revision 1.1 2007/03/07 08:19:10 jorpiell
|
77 |
* Pasadas las clases de KML de libGPE-GML a libGPE-KML
|
78 |
*
|
79 |
* Revision 1.1 2007/02/28 11:48:31 csanchez
|
80 |
* *** empty log message ***
|
81 |
*
|
82 |
* Revision 1.1 2007/02/20 10:53:20 jorpiell
|
83 |
* A?adidos los proyectos de kml y gml antiguos
|
84 |
*
|
85 |
* Revision 1.1 2007/02/12 13:49:18 jorpiell
|
86 |
* A?adido el driver de KML
|
87 |
*
|
88 |
*
|
89 |
*/
|
90 |
/**
|
91 |
* This class parses a coordinates tag. Example:
|
92 |
* <p>
|
93 |
* <pre>
|
94 |
* <code>
|
95 |
* <coordinates>60.0,60.0 60.0,90.0 90.0,90.0</coordinates>
|
96 |
* </code>
|
97 |
* </pre>
|
98 |
* </p>
|
99 |
* @author Jorge Piera LLodr? (jorge.piera@iver.es)
|
100 |
* @see http://code.google.com/apis/kml/documentation/kml_tags_21.html#coordinates
|
101 |
*/
|
102 |
public class CoordinatesTypeIterator extends KmlCoodinatesIterator{ |
103 |
private StringTokenizer coordinatesString = null; |
104 |
|
105 |
/**
|
106 |
* It parses the gml:coordinates tag
|
107 |
* @param parser
|
108 |
* The XML parser
|
109 |
* @param handler
|
110 |
* The GPE parser that contains the content handler and
|
111 |
* the error handler
|
112 |
* @return
|
113 |
* It retuns a matrix of doubles with 3 columns (x,y,z) and
|
114 |
* one row for each coordinate.
|
115 |
* @throws XmlStreamException
|
116 |
* @throws IOException
|
117 |
*/
|
118 |
/* (non-Javadoc)
|
119 |
* @see org.gvsig.gpe.gml.parser.v2.coordinates.GmlCoodinatesIterator#initialize(org.gvsig.gpe.xml.stream.IXmlStreamReader, org.gvsig.gpe.gml.parser.GPEDefaultGmlParser, java.lang.String)
|
120 |
*/
|
121 |
public void initialize(IXmlStreamReader parser, |
122 |
GPEDeafultKmlParser handler, String lastTag)
|
123 |
throws XmlStreamException, IOException { |
124 |
super.initialize(parser, handler, lastTag);
|
125 |
|
126 |
boolean endFeature = false; |
127 |
int currentTag;
|
128 |
|
129 |
String tag = parser.getName();
|
130 |
currentTag = parser.getEventType(); |
131 |
|
132 |
while (!endFeature){
|
133 |
switch(currentTag){
|
134 |
case IXmlStreamReader.START_TAG:
|
135 |
if (CompareUtils.compareWithOutNamespace(tag,KmlTags.COORDINATES)){
|
136 |
parser.next(); |
137 |
String coordinatesTag = parser.getText().trim();
|
138 |
if (dimension == -1){ |
139 |
dimension = caculateDimension(coordinatesTag); |
140 |
} |
141 |
coordinatesString = new StringTokenizer(coordinatesTag); |
142 |
//Parses until the last tag...
|
143 |
parseAll(); |
144 |
return;
|
145 |
} |
146 |
break;
|
147 |
case IXmlStreamReader.END_TAG:
|
148 |
if (CompareUtils.compareWithOutNamespace(tag,KmlTags.COORDINATES)){
|
149 |
endFeature = true;
|
150 |
} |
151 |
break;
|
152 |
case IXmlStreamReader.TEXT:
|
153 |
|
154 |
break;
|
155 |
} |
156 |
if (!endFeature){
|
157 |
currentTag = parser.next(); |
158 |
tag = parser.getName(); |
159 |
} |
160 |
} |
161 |
} |
162 |
|
163 |
/**
|
164 |
* Calculates the dimension from a array of coordinates
|
165 |
* @param coordinatesTag
|
166 |
* @return
|
167 |
*/
|
168 |
private int caculateDimension(String coordinatesTag) { |
169 |
String firstPair;
|
170 |
StringTokenizer st = new StringTokenizer(coordinatesTag); |
171 |
if (st.hasMoreTokens()){
|
172 |
firstPair = st.nextToken(); |
173 |
}else{
|
174 |
firstPair = coordinatesTag; |
175 |
} |
176 |
return StringUtils.splitString(firstPair, KmlTags.COORDINATES_SEPARATOR).length;
|
177 |
} |
178 |
|
179 |
/*
|
180 |
* (non-Javadoc)
|
181 |
* @see org.gvsig.gpe.parser.ICoordinateIterator#hasNext()
|
182 |
*/
|
183 |
public boolean hasNext() throws IOException { |
184 |
return coordinatesString.hasMoreTokens();
|
185 |
} |
186 |
|
187 |
/*
|
188 |
* (non-Javadoc)
|
189 |
* @see org.gvsig.gpe.parser.ICoordinateIterator#next(double[])
|
190 |
*/
|
191 |
public void next(double[] buffer) throws IOException { |
192 |
String next = coordinatesString.nextToken();
|
193 |
String[] coordinates = org.gvsig.gpe.utils.StringUtils.splitString(next.trim(),KmlTags.COORDINATES_SEPARATOR); |
194 |
for (int i=0 ; i<coordinates.length ; i++){ |
195 |
buffer[i] = handler.getProfile().getDoubleBinding().parse(coordinates[i]); |
196 |
} |
197 |
} |
198 |
|
199 |
|
200 |
} |