root / branches / v1_9_0 / libGPE-GML / src / org / gvsig / gpe / gml / parser / v2 / coordinates / CoordTypeIterator.java @ 53
History | View | Annotate | Download (4.61 KB)
| 1 |
package org.gvsig.gpe.gml.parser.v2.coordinates; |
|---|---|
| 2 |
|
| 3 |
import java.io.IOException; |
| 4 |
|
| 5 |
import javax.xml.namespace.QName; |
| 6 |
|
| 7 |
import org.gvsig.gpe.gml.parser.GPEDefaultGmlParser; |
| 8 |
import org.gvsig.gpe.gml.parser.v2.geometries.DoubleTypeBinding; |
| 9 |
import org.gvsig.gpe.gml.utils.GMLTags; |
| 10 |
import org.gvsig.gpe.xml.stream.EventType; |
| 11 |
import org.gvsig.gpe.xml.stream.IXmlStreamReader; |
| 12 |
import org.gvsig.gpe.xml.stream.XmlStreamException; |
| 13 |
import org.gvsig.gpe.xml.utils.CompareUtils; |
| 14 |
|
| 15 |
|
| 16 |
/* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
|
| 17 |
*
|
| 18 |
* Copyright (C) 2004 IVER T.I. and Generalitat Valenciana.
|
| 19 |
*
|
| 20 |
* This program is free software; you can redistribute it and/or
|
| 21 |
* modify it under the terms of the GNU General Public License
|
| 22 |
* as published by the Free Software Foundation; either version 2
|
| 23 |
* of the License, or (at your option) any later version.
|
| 24 |
*
|
| 25 |
* This program is distributed in the hope that it will be useful,
|
| 26 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
| 27 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
| 28 |
* GNU General Public License for more details.
|
| 29 |
*
|
| 30 |
* You should have received a copy of the GNU General Public License
|
| 31 |
* along with this program; if not, write to the Free Software
|
| 32 |
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
|
| 33 |
*
|
| 34 |
* For more information, contact:
|
| 35 |
*
|
| 36 |
* Generalitat Valenciana
|
| 37 |
* Conselleria d'Infraestructures i Transport
|
| 38 |
* Av. Blasco Ib??ez, 50
|
| 39 |
* 46010 VALENCIA
|
| 40 |
* SPAIN
|
| 41 |
*
|
| 42 |
* +34 963862235
|
| 43 |
* gvsig@gva.es
|
| 44 |
* www.gvsig.gva.es
|
| 45 |
*
|
| 46 |
* or
|
| 47 |
*
|
| 48 |
* IVER T.I. S.A
|
| 49 |
* Salamanca 50
|
| 50 |
* 46005 Valencia
|
| 51 |
* Spain
|
| 52 |
*
|
| 53 |
* +34 963163400
|
| 54 |
* dac@iver.es
|
| 55 |
*/
|
| 56 |
/* CVS MESSAGES:
|
| 57 |
*
|
| 58 |
* $Id:CoordTypeBinding.java 371 2008-01-10 09:30:19Z jpiera $
|
| 59 |
* $Log$
|
| 60 |
* Revision 1.2 2007/05/14 09:31:06 jorpiell
|
| 61 |
* Add the a new class to compare tags
|
| 62 |
*
|
| 63 |
* Revision 1.1 2007/05/07 12:58:42 jorpiell
|
| 64 |
* Add some methods to manage the multigeometries
|
| 65 |
*
|
| 66 |
*
|
| 67 |
*/
|
| 68 |
/**
|
| 69 |
* It parses a gml:CoordType object. Example:
|
| 70 |
* <p>
|
| 71 |
* <pre>
|
| 72 |
* <code>
|
| 73 |
* <gml:coord><gml:X>0</gml:X><gml:Y>0</gml:Y></gml:coord>
|
| 74 |
* </code>
|
| 75 |
* </pre>
|
| 76 |
* </p>
|
| 77 |
* @author Jorge Piera LLodr? (jorge.piera@iver.es)
|
| 78 |
*/
|
| 79 |
public class CoordTypeIterator extends GmlCoodinatesIterator{ |
| 80 |
|
| 81 |
/**
|
| 82 |
* It parses the gml:coord tag
|
| 83 |
* @param parser
|
| 84 |
* The XML parser
|
| 85 |
* @param handler
|
| 86 |
* The GPE parser that contains the content handler and
|
| 87 |
* the error handler
|
| 88 |
* @return
|
| 89 |
* It retuns an array of doubles with 3 values (x,y,z)
|
| 90 |
* @throws XmlStreamException
|
| 91 |
* @throws IOException
|
| 92 |
*/
|
| 93 |
/* (non-Javadoc)
|
| 94 |
* @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)
|
| 95 |
*/
|
| 96 |
public void initialize(IXmlStreamReader parser, |
| 97 |
GPEDefaultGmlParser handler, QName lastTag)
|
| 98 |
throws XmlStreamException, IOException { |
| 99 |
super.initialize(parser, handler, lastTag);
|
| 100 |
} |
| 101 |
|
| 102 |
/*
|
| 103 |
* (non-Javadoc)
|
| 104 |
* @see org.gvsig.gpe.parser.ICoordinateIterator#getDimension()
|
| 105 |
*/
|
| 106 |
public int getDimension() { |
| 107 |
//TODO gets the dimension!!!
|
| 108 |
return 3; |
| 109 |
} |
| 110 |
|
| 111 |
/*
|
| 112 |
* (non-Javadoc)
|
| 113 |
* @see org.gvsig.gpe.parser.ICoordinateIterator#hasNext()
|
| 114 |
*/
|
| 115 |
public boolean hasNext() throws IOException { |
| 116 |
QName tag = parser.getElementName();
|
| 117 |
|
| 118 |
if (CompareUtils.compareWithNamespace(tag,GMLTags.GML_COORD)){
|
| 119 |
return true; |
| 120 |
} |
| 121 |
parseAll(); |
| 122 |
return false; |
| 123 |
} |
| 124 |
|
| 125 |
/*
|
| 126 |
* (non-Javadoc)
|
| 127 |
* @see org.gvsig.gpe.parser.ICoordinateIterator#next(double[])
|
| 128 |
*/
|
| 129 |
public void next(double[] buffer) throws IOException { |
| 130 |
boolean endCoord = false; |
| 131 |
EventType currentTag; |
| 132 |
|
| 133 |
QName tag = parser.getElementName();
|
| 134 |
currentTag = parser.getEventType(); |
| 135 |
|
| 136 |
while (!endCoord){
|
| 137 |
switch(currentTag.getCode()){
|
| 138 |
case EventType.START_ELEMENT_CODE:
|
| 139 |
tag = parser.getElementName(); |
| 140 |
if (CompareUtils.compareWithNamespace(tag,GMLTags.GML_X)){
|
| 141 |
parser.next(); |
| 142 |
buffer[0] = DoubleTypeBinding.parse(parser.getText(),COORDINATES_DECIMAL);
|
| 143 |
}else if (CompareUtils.compareWithNamespace(tag,GMLTags.GML_Y)){ |
| 144 |
parser.next(); |
| 145 |
buffer[1] = DoubleTypeBinding.parse(parser.getText(),COORDINATES_DECIMAL);
|
| 146 |
}else if (CompareUtils.compareWithNamespace(tag,GMLTags.GML_Z)){ |
| 147 |
parser.next(); |
| 148 |
buffer[2] = DoubleTypeBinding.parse(parser.getText(),COORDINATES_DECIMAL);
|
| 149 |
} |
| 150 |
break;
|
| 151 |
case EventType.END_ELEMENT_CODE:
|
| 152 |
tag = parser.getElementName(); |
| 153 |
if (CompareUtils.compareWithNamespace(tag,GMLTags.GML_COORD)){
|
| 154 |
//Advance until netx XML tag
|
| 155 |
endCoord = true;
|
| 156 |
} |
| 157 |
break;
|
| 158 |
} |
| 159 |
if (!endCoord){
|
| 160 |
currentTag = parser.next(); |
| 161 |
} |
| 162 |
} |
| 163 |
} |
| 164 |
} |