svn-gvsig-desktop / trunk / libraries / libRaster / src / org / gvsig / raster / dataset / serializer / GeoPointRmfSerializer.java @ 12522
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/* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
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*
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* Copyright (C) 2007 IVER T.I. and Generalitat Valenciana.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
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*/
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package org.gvsig.raster.dataset.serializer; |
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import java.awt.geom.AffineTransform; |
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import java.awt.geom.Point2D; |
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import java.io.IOException; |
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import java.io.Reader; |
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import java.io.StringReader; |
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import java.util.ArrayList; |
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import org.gvsig.raster.dataset.io.rmf.ClassSerializer; |
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import org.gvsig.raster.dataset.io.rmf.ParsingException; |
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import org.gvsig.raster.datastruct.Extent; |
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import org.gvsig.raster.datastruct.GeoPoint; |
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import org.gvsig.raster.datastruct.ViewPortData; |
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import org.kxml2.io.KXmlParser; |
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import org.xmlpull.v1.XmlPullParserException; |
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/**
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* <P>
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* Clase para convertir a XML la informaci?n de una lista de puntos de control y obtener esta informaci?n desde XML.
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* Esta clase implementa el interfaz IRmfBlock con los m?todos de escritura y
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* lectura. Estos ser?n utilizados por el gestor de ficheros RMF para escribir y
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* leer datos.
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* </P>
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* <P>
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* La estructura XML es la siguiente:
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* </P>
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* <P>
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* \<GeoPoint n="0"\><BR>
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* \<PixelX\>17.85306122448992\</PixelX\><BR>
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* \<PixelY\>15.632653061225255\</PixelY\><BR>
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* \<MapX\>4.62857142857149\</MapX\><BR>
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* \<MapY\>1945.74693877551\</MapY\><BR>
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* \<Active\>true\</Active\><BR>
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* \<LeftCenterPoint\><BR>
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* \<X\>5.104234119122292\</X\><BR>
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* \<Y\>1945.2980070494339\</Y\><BR>
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* \</LeftCenterPoint\><BR>
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* \<RightCenterPoint\><BR>
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* \<X\>4.62857142857149\</X\><BR>
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* \<Y\>1945.74693877551\</Y\><BR>
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* \</RightCenterPoint\><BR>
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* \<LeftViewPort\><BR>
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* \<Proj\>EPSG:23030\</Proj\><BR>
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* \<Bbox\><BR>
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* \<Px\>-244.94276588087763\</Px\><BR>
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* \<Py\>1782.9341499065767\</Py\><BR>
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* \<WCWidth\>500.094\</WCWidth\><BR>
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* \<WCHeight\>324.7277142857142\</WCHeight\><BR>
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* \</Bbox\><BR>
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* \<Pdim\><BR>
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* \<Width\>140\</Width\><BR>
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* \<Height\>140</Height\><BR>
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* \</Pdim\><BR>
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* \<Zoom\>1.0\</Zoom\><BR>
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* \</LeftViewPort\><BR>
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* \<RightViewPort\><BR>
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* \<Proj\>EPSG:23030\</Proj\><BR>
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* \<Bbox\><BR>
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* \<Px\>-245.41842857142848\</Px\><BR>
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* \<Py\>1783.3830816326529\</Py\><BR>
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* \<WCWidth\>500.09399999999994\</WCWidth\><BR>
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* \<WCHeight\>324.72771428571446\</WCHeight\><BR>
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* \</Bbox\><BR>
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* \<Pdim\><BR>
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* \<Width\>140\</Width\><BR>
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* \<Height\>140\</Height\><BR>
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* \</Pdim\><BR>
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* \<Zoom\>1.0\</Zoom\><BR>
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* \</RightViewPort\><BR>
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* \</GeoPoint\><BR>
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* </P>
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*
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* @version 23/04/2007
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* @author Nacho Brodin (nachobrodin@gmail.com)
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*
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*/
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public class GeoPointRmfSerializer extends ClassSerializer { |
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//TAGS
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public static final String MAIN_TAG = "GeoPoints"; |
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public static final String GEOPOINT = "GeoPoint"; |
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public static final String PIXELX = "PixelX"; |
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public static final String PIXELY = "PixelY"; |
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public static final String MAPX = "MapX"; |
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public static final String MAPY = "MapY"; |
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public static final String ACTIVE = "Active"; |
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public static final String LEFTCP = "LeftCenterPoint"; |
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public static final String RIGHTCP = "RightCenterPoint"; |
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public static final String X = "X"; |
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public static final String Y = "Y"; |
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public static final String LEFTVP = "LeftViewPort"; |
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public static final String RIGHTVP = "RightViewPort"; |
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public static final String PROJ = "Proj"; |
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public static final String BBOX = "Bbox"; |
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public static final String PX = "Px"; |
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public static final String PY = "Py"; |
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public static final String WCWIDTH = "WCWidth"; |
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public static final String WCHEIGHT = "WCHeight"; |
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public static final String PDIM = "Pdim"; |
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public static final String WIDTH = "Width"; |
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public static final String HEIGHT = "Height"; |
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public static final String ZOOM = "Zoom"; |
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private GeoPoint[] gpList = null; |
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/**
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* Constructor. Asigna la tabla a serializar.
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* @param ColorTable tabla a convertir en XML
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*/
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public GeoPointRmfSerializer(GeoPoint[] gp) { |
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this.gpList = gp;
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} |
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/**
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* Constructor.
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*/
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public GeoPointRmfSerializer() {
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} |
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/**
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* Parsea un bloque correspondiente a un punto central
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* @param gp
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* @param parser
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* @param parseableTag
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* @throws NumberFormatException
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* @throws XmlPullParserException
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* @throws IOException
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*/
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private void parserCenterPoint(GeoPoint gp, KXmlParser parser, String parseableTag) throws NumberFormatException, XmlPullParserException, IOException { |
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boolean end = false; |
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boolean tagOk = false; |
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int tag = parser.next();
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while (!end) {
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switch(tag) {
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case KXmlParser.START_TAG:
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if(parser.getName() != null){ |
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if (parser.getName().compareTo(parseableTag) == 0) |
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tagOk = true;
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} |
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break;
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case KXmlParser.END_TAG:
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if (parser.getName().compareTo(parseableTag) == 0) |
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end = true;
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break;
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case KXmlParser.TEXT:
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if(tagOk) {
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if(parseableTag.compareTo("LeftCenterPoint") == 0) { |
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double x = Double.valueOf(parserString(parser, X, null)).doubleValue(); |
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double y = Double.valueOf(parserString(parser, Y, null)).doubleValue(); |
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gp.leftCenterPoint = new Point2D.Double(x, y); |
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} |
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if(parseableTag.compareTo("RightCenterPoint") == 0) { |
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double x = Double.valueOf(parserString(parser, X, null)).doubleValue(); |
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double y = Double.valueOf(parserString(parser, Y, null)).doubleValue(); |
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gp.rightCenterPoint = new Point2D.Double(x, y); |
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} |
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tagOk = false;
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} |
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break;
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} |
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if (!end)
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tag = parser.next(); |
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} |
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} |
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/**
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* Parsea un bloque correspondiente a un punto central
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* @param gp
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* @param parser
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* @param parseableTag
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* @throws NumberFormatException
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* @throws XmlPullParserException
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* @throws IOException
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*/
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private void parserBoundingBox(GeoPoint gp, KXmlParser parser, String parseableTag) throws NumberFormatException, XmlPullParserException, IOException { |
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boolean end = false; |
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boolean tagOk = false; |
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int tag = parser.next();
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while (!end) {
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switch(tag) {
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case KXmlParser.START_TAG:
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if(parser.getName() != null){ |
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if (parser.getName().compareTo(BBOX) == 0) |
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tagOk = true;
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} |
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break;
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case KXmlParser.END_TAG:
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if (parser.getName().compareTo(BBOX) == 0) |
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end = true;
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break;
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case KXmlParser.TEXT:
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if(tagOk) {
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if(parseableTag.compareTo("LeftViewPort") == 0) { |
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double x = Double.valueOf(parserString(parser, PX, null)).doubleValue(); |
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double y = Double.valueOf(parserString(parser, PY, null)).doubleValue(); |
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double w = Double.valueOf(parserString(parser, WCWIDTH, null)).doubleValue(); |
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double h = Double.valueOf(parserString(parser, WCHEIGHT, null)).doubleValue(); |
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gp.leftViewPort.setExtent(new Extent(x, y, x + w, y - h));
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} |
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if(parseableTag.compareTo("RightViewPort") == 0) { |
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double x = Double.valueOf(parserString(parser, PX, null)).doubleValue(); |
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double y = Double.valueOf(parserString(parser, PY, null)).doubleValue(); |
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double w = Double.valueOf(parserString(parser, WCWIDTH, null)).doubleValue(); |
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double h = Double.valueOf(parserString(parser, WCHEIGHT, null)).doubleValue(); |
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gp.rightViewPort.setExtent(new Extent(x, y, x + w, y - h));
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} |
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tagOk = false;
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} |
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break;
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} |
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if (!end)
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tag = parser.next(); |
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} |
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} |
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/**
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* Parsea un bloque correspondiente a un punto central
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* @param gp
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* @param parser
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* @param parseableTag
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* @throws NumberFormatException
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* @throws XmlPullParserException
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* @throws IOException
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*/
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private void parserDimension(GeoPoint gp, KXmlParser parser, String parseableTag) throws NumberFormatException, XmlPullParserException, IOException { |
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boolean end = false; |
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boolean tagOk = false; |
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int tag = parser.next();
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while (!end) {
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switch(tag) {
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case KXmlParser.START_TAG:
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if(parser.getName() != null){ |
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if (parser.getName().compareTo(PDIM) == 0) |
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tagOk = true;
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} |
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break;
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case KXmlParser.END_TAG:
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if (parser.getName().compareTo(PDIM) == 0) |
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end = true;
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break;
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case KXmlParser.TEXT:
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if(tagOk) {
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if(parseableTag.compareTo("LeftViewPort") == 0) { |
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double x = Double.valueOf(parserString(parser, WIDTH, null)).doubleValue(); |
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double y = Double.valueOf(parserString(parser, HEIGHT, null)).doubleValue(); |
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//gp.leftViewPort.setSize(x, y);
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} |
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if(parseableTag.compareTo("RightViewPort") == 0) { |
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double x = Double.valueOf(parserString(parser, WIDTH, null)).doubleValue(); |
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double y = Double.valueOf(parserString(parser, HEIGHT, null)).doubleValue(); |
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//gp.rightViewPort.setSize(x, y);
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} |
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tagOk = false;
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} |
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break;
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} |
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if (!end)
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tag = parser.next(); |
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} |
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} |
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/**
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* Parsea un viewport contenido en un punto de control
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* @param gp
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* @param parser
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* @param parseableTag
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* @throws XmlPullParserException
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* @throws IOException
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*/
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private void parserViewPort(GeoPoint gp, KXmlParser parser, String parseableTag) throws XmlPullParserException, IOException { |
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boolean end = false; |
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if(parseableTag.compareTo("LeftViewPort") == 0) { |
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gp.leftViewPort = new ViewPortData();
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gp.leftViewPort.mat = new AffineTransform(); |
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} |
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if(parseableTag.compareTo("RightViewPort") == 0) { |
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gp.rightViewPort = new ViewPortData();
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gp.rightViewPort.mat = new AffineTransform(); |
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} |
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int tag = parser.next();
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while (!end) {
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switch(tag) {
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case KXmlParser.START_TAG:
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if(parser.getName() != null){ |
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if (parser.getName().compareTo(parseableTag) == 0) { |
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String proj = parserString(parser, PROJ, null); |
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parserBoundingBox(gp, parser, parseableTag); |
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parserDimension(gp, parser, parseableTag); |
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if(parseableTag.compareTo("LeftViewPort") == 0) |
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gp.zoomLeft = Double.valueOf(parserString(parser, ZOOM, null)).doubleValue(); |
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if(parseableTag.compareTo("RightViewPort") == 0) |
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gp.zoomRight = Double.valueOf(parserString(parser, ZOOM, null)).doubleValue(); |
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} |
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} |
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break;
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case KXmlParser.END_TAG:
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if (parser.getName().compareTo(parseableTag) == 0) |
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end = true;
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break;
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case KXmlParser.TEXT:
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break;
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} |
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if (!end)
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tag = parser.next(); |
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} |
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} |
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/**
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* Parsea un punto de control completo
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* @param gp
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* @param parser
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* @param xml
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* @param tag
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* @throws XmlPullParserException
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* @throws IOException
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*/
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public void parserGeoPoint(GeoPoint gp, KXmlParser parser, String xml, int tag) throws XmlPullParserException, IOException { |
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double px = Double.parseDouble(parserString(parser, PIXELX, null)); |
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double py = Double.parseDouble(parserString(parser, PIXELY, null)); |
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gp.pixelPoint = new Point2D.Double(px, py); |
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double mx = Double.parseDouble(parserString(parser, MAPX, null)); |
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double my = Double.parseDouble(parserString(parser, MAPY, null)); |
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gp.mapPoint = new Point2D.Double(mx, my); |
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gp.active = Boolean.valueOf(parserString(parser, ACTIVE, null)).booleanValue(); |
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parserCenterPoint(gp, parser, "LeftCenterPoint");
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parserCenterPoint(gp, parser, "RightCenterPoint");
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parserViewPort(gp, parser, "LeftViewPort");
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parserViewPort(gp, parser, "RightViewPort");
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.raster.dataset.io.rmf.IRmfBlock#read(java.lang.String)
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*/
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public void read(String xml) throws ParsingException { |
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ArrayList list = new ArrayList(); |
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GeoPoint gp = null;
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boolean init = false; |
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int nPoint = -1; |
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boolean tagOk = false; |
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KXmlParser parser = new KXmlParser();
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Reader reader = new StringReader(xml); |
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try {
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parser.setInput(reader); |
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} catch (XmlPullParserException e) {
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throw new ParsingException(xml); |
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} |
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try {
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int tag = parser.nextTag();
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if ( parser.getEventType() != KXmlParser.END_DOCUMENT ){
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parser.require(KXmlParser.START_TAG, null, MAIN_TAG);
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while(tag != KXmlParser.END_DOCUMENT) {
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switch(tag) {
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case KXmlParser.START_TAG:
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if (parser.getName().compareTo(MAIN_TAG) == 0) |
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init = true;
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if(init) {
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if (parser.getName().compareTo(GEOPOINT) == 0) { |
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gp = new GeoPoint();
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tagOk = true;
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nPoint++; |
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} |
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} |
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break;
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case KXmlParser.END_TAG:
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break;
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case KXmlParser.TEXT:
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if(tagOk) {
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parserGeoPoint(gp, parser, xml,tag); |
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tagOk = false;
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list.add(gp); |
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} |
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break;
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} |
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tag = parser.next(); |
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} |
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parser.require(KXmlParser.END_DOCUMENT, null, null); |
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} |
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} catch (XmlPullParserException e) {
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throw new ParsingException(xml); |
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} catch (IOException e) { |
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throw new ParsingException(xml); |
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} |
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gpList = new GeoPoint[list.size()];
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for (int i = 0; i < list.size(); i++) |
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gpList[i] = (GeoPoint)list.get(i); |
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.raster.dataset.io.rmf.IRmfBlock#write()
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*/
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public String write() { |
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StringBuffer b = new StringBuffer(); |
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b.append("<" + MAIN_TAG + ">\n"); |
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for (int i = 0; i < gpList.length; i++) { |
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b.append("\t<" + GEOPOINT + " n=\"" + i + "\">\n"); |
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putProperty(b, PIXELX, gpList[i].pixelPoint.getX(), 2);
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putProperty(b, PIXELY, gpList[i].pixelPoint.getY(), 2);
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putProperty(b, MAPX, gpList[i].mapPoint.getX(), 2);
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putProperty(b, MAPY, gpList[i].mapPoint.getY(), 2);
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putProperty(b, ACTIVE, String.valueOf(gpList[i].active), 2); |
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b.append("\t\t<" + LEFTCP + ">\n"); |
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putProperty(b, X, gpList[i].leftCenterPoint.getX(), 3);
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putProperty(b, Y, gpList[i].leftCenterPoint.getY(), 3);
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b.append("\t\t</" + LEFTCP + ">\n"); |
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b.append("\t\t<" + RIGHTCP + ">\n"); |
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putProperty(b, X, gpList[i].rightCenterPoint.getX(), 3);
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putProperty(b, Y, gpList[i].rightCenterPoint.getY(), 3);
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b.append("\t\t</" + RIGHTCP + ">\n"); |
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b.append("\t\t<" + LEFTVP + ">\n"); |
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|
| 441 |
String proj = ""; |
| 442 |
if(gpList[i].leftViewPort.getProjection() != null) |
| 443 |
proj = gpList[i].leftViewPort.getProjection().getAbrev(); |
| 444 |
putProperty(b, PROJ, proj, 3);
|
| 445 |
b.append("\t\t\t<" + BBOX + ">\n"); |
| 446 |
putProperty(b, PX, gpList[i].leftViewPort.getExtent().getMin().getX(), 4);
|
| 447 |
putProperty(b, PY, gpList[i].leftViewPort.getExtent().getMax().getY(), 4);
|
| 448 |
putProperty(b, WCWIDTH, gpList[i].leftViewPort.getExtent().width(), 4);
|
| 449 |
putProperty(b, WCHEIGHT, gpList[i].leftViewPort.getExtent().height(), 4);
|
| 450 |
b.append("\t\t\t</" + BBOX + ">\n"); |
| 451 |
|
| 452 |
b.append("\t\t\t<" + PDIM + ">\n"); |
| 453 |
putProperty(b, WIDTH, GeoPoint.WIDTH_WINDOW, 4);
|
| 454 |
putProperty(b, HEIGHT, GeoPoint.HEIGHT_WINDOW, 4);
|
| 455 |
b.append("\t\t\t</" + PDIM + ">\n"); |
| 456 |
putProperty(b, ZOOM, gpList[i].zoomLeft, 3);
|
| 457 |
|
| 458 |
b.append("\t\t</" + LEFTVP + ">\n"); |
| 459 |
|
| 460 |
b.append("\t\t<" + RIGHTVP + ">\n"); |
| 461 |
|
| 462 |
proj = "";
|
| 463 |
if(gpList[i].rightViewPort.getProjection() != null) |
| 464 |
proj = gpList[i].rightViewPort.getProjection().getAbrev(); |
| 465 |
putProperty(b, PROJ, proj, 3);
|
| 466 |
b.append("\t\t\t<" + BBOX + ">\n"); |
| 467 |
putProperty(b, PX, gpList[i].rightViewPort.getExtent().getMin().getX(), 4);
|
| 468 |
putProperty(b, PY, gpList[i].rightViewPort.getExtent().getMax().getY(), 4);
|
| 469 |
putProperty(b, WCWIDTH, gpList[i].rightViewPort.getExtent().width(), 4);
|
| 470 |
putProperty(b, WCHEIGHT, gpList[i].rightViewPort.getExtent().height(), 4);
|
| 471 |
b.append("\t\t\t</" + BBOX + ">\n"); |
| 472 |
|
| 473 |
b.append("\t\t\t<" + PDIM + ">\n"); |
| 474 |
putProperty(b, WIDTH, GeoPoint.WIDTH_WINDOW, 4);
|
| 475 |
putProperty(b, HEIGHT, GeoPoint.HEIGHT_WINDOW, 4);
|
| 476 |
b.append("\t\t\t</" + PDIM + ">\n"); |
| 477 |
putProperty(b, ZOOM, gpList[i].zoomRight, 3);
|
| 478 |
|
| 479 |
b.append("\t\t</" + RIGHTVP + ">\n"); |
| 480 |
|
| 481 |
b.append("\t</" + GEOPOINT + ">\n"); |
| 482 |
} |
| 483 |
b.append("</" + MAIN_TAG + ">\n"); |
| 484 |
return b.toString();
|
| 485 |
} |
| 486 |
|
| 487 |
/*
|
| 488 |
* (non-Javadoc)
|
| 489 |
* @see org.gvsig.raster.dataset.io.rmf.IRmfBlock#getResult()
|
| 490 |
*/
|
| 491 |
public Object getResult() { |
| 492 |
return gpList;
|
| 493 |
} |
| 494 |
|
| 495 |
/*
|
| 496 |
* (non-Javadoc)
|
| 497 |
* @see org.gvsig.raster.dataset.io.rmf.IRmfBlock#getMainTag()
|
| 498 |
*/
|
| 499 |
public String getMainTag() { |
| 500 |
return MAIN_TAG;
|
| 501 |
} |
| 502 |
} |