svn-gvsig-desktop / trunk / extensions / extGeoreferencing / src / com / iver / cit / gvsig / utils / GeoPointPersistence.java @ 5089
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package com.iver.cit.gvsig.utils; |
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import java.awt.Dimension; |
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import java.awt.geom.Point2D; |
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import java.awt.geom.Rectangle2D; |
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import java.io.BufferedOutputStream; |
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import java.io.File; |
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import java.io.FileOutputStream; |
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import java.io.IOException; |
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import java.io.OutputStream; |
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import java.io.OutputStreamWriter; |
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import java.io.StringWriter; |
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import java.util.ArrayList; |
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|
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import javax.xml.parsers.DocumentBuilder; |
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import javax.xml.parsers.DocumentBuilderFactory; |
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import javax.xml.parsers.ParserConfigurationException; |
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|
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import org.apache.crimson.jaxp.DocumentBuilderFactoryImpl; |
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import org.apache.xml.serialize.OutputFormat; |
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import org.apache.xml.serialize.XMLSerializer; |
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import org.cresques.cts.ProjectionPool; |
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import org.w3c.dom.Document; |
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import org.w3c.dom.Element; |
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import org.w3c.dom.Node; |
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import org.w3c.dom.NodeList; |
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import org.xml.sax.SAXException; |
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|
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import com.iver.andami.PluginServices; |
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import com.iver.cit.gvsig.fmap.DriverException; |
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import com.iver.cit.gvsig.fmap.ViewPort; |
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import com.iver.cit.gvsig.fmap.layers.FLyrGeoRaster; |
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import com.iver.cit.gvsig.fmap.layers.FLyrPoints; |
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import com.iver.cit.gvsig.fmap.layers.GeoPoint; |
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import com.iver.cit.gvsig.gui.View; |
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import com.iver.cit.gvsig.gui.dialogs.GeoreferencingDialog; |
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|
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/**
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* Clase que controla la persistencia de la capa de puntos.
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* @author Nacho Brodin (brodin_ign@gva.es)
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*/
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public class GeoPointPersistence{ |
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//**********************Vars**********************************
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private ArrayList geoPointList = null; |
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private Document xmlDoc = null; |
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private Element generalTag = null; |
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private FLyrPoints lyrPoints = null; |
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private double[] lastViewPort = null; |
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//**********************End Vars******************************
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|
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//**********************Methods*******************************
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/**
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* Constructor
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*/
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public GeoPointPersistence(){}
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|
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/**
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* Constructor
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* @param geoPointList Lista de geopuntos
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*/
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public GeoPointPersistence(FLyrPoints lyrPoints){
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this.geoPointList = lyrPoints.getListPoint();
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this.lyrPoints = lyrPoints;
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} |
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|
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/**
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* Carga la lista de puntos desde un fichero
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* @param file Nombre del fichero
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* @return Array con la lista de puntos
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*/
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public void loadPointList(String file){ |
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try {
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DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance(); |
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DocumentBuilder db = dbf.newDocumentBuilder();
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File f = new File(file); |
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Document doc = db.parse(f);
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if(doc.getDocumentElement().getTagName().equals("GeoPoints")){ |
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NodeList nodeList = doc.getDocumentElement().getChildNodes(); |
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lyrPoints.clear(); |
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for(int i=0;i<nodeList.getLength();i++){ |
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Node node = nodeList.item(i); |
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if(node.getNodeName().equals("FLyrGeoRaster")){ |
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NodeList nl = node.getChildNodes(); |
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lastViewPort = processFlyrGeoRasterNodeValue(nl); |
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} |
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if(node.getNodeName().equals("GeoPoint")){ |
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NodeList nl = node.getChildNodes(); |
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processGeoPointNodeValue(nl); |
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} |
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} |
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this.geoPointList = lyrPoints.getListPoint();
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} |
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} catch (ParserConfigurationException e) { |
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return;
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} catch (SAXException e1) {
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return;
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} catch (IOException e1) { |
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return;
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} |
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} |
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|
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/**
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* Crea el XML con la lista de puntos y la salva a disco
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* @param file
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*/
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public void savePointList(String file){ |
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this.geoPointList = lyrPoints.getListPoint();
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try {
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DocumentBuilderFactory dbFactory = DocumentBuilderFactoryImpl.newInstance();
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DocumentBuilder docBuilder = dbFactory.newDocumentBuilder();
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xmlDoc = docBuilder.newDocument(); |
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} catch(Exception e) { |
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System.out.println(e);
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} |
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generalTag = xmlDoc.createElement("GeoPoints");
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xmlDoc.appendChild(generalTag); |
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createXMLFLyrGeoRasterNode(lyrPoints.getLyrGeoRaster()); |
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for(int i=0;i<geoPointList.size();i++) |
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createXMLGeoPointNode((GeoPoint)(geoPointList.get(i)), i); |
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XML2File(Document2Text(), file); |
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} |
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/**
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* Crea el fichero Ascii con la lista de puntos y la salva a disco
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* @param file
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*/
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public void saveAsciiPointList(String file){ |
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this.geoPointList = lyrPoints.getListPoint();
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for(int i=0;i<geoPointList.size();i++){ |
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//TODO: FALTA IMPLEMENTAR LA EXPORTACI?N DE LA TABLA
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} |
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} |
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//****************************************************
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/**
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* Aplica una transformaci?n al extent dependiendo de si el extent de la imagen
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* original ha cambiado o no. Si la capa FLyrGeoRaster cargada tiene un extent
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* distinto al que se ha salvado en el fichero de puntos esto significa que el
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* extent de la miniimagen que tiene los puntos relativos a las coordenadas de la
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* imagen en pixels ha de sufrir un desplazamiento.
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* @param imgExtent Extent de la imagen
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* @param miniExtent ViewPor del miniextent a transformar
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* @return ViewPort ViewPort del miniextent transformado
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*/
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private ViewPort transformMiniExtent(Rectangle2D imgExtent, ViewPort miniExtent){ |
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if( lastViewPort[0] != imgExtent.getMinX() || |
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lastViewPort[1] != imgExtent.getMinY() ||
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lastViewPort[2] != imgExtent.getWidth() ||
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lastViewPort[3] != imgExtent.getHeight()){
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Rectangle2D r = new Rectangle2D.Double(); |
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r.setRect( miniExtent.getExtent().getMinX() - (lastViewPort[0] - imgExtent.getMinX()),
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miniExtent.getExtent().getMinY() - (lastViewPort[1] - imgExtent.getMinY()),
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miniExtent.getExtent().getWidth(), |
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miniExtent.getExtent().getHeight()); |
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miniExtent.setExtent(r); |
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} |
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return miniExtent;
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} |
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/**
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* Aplica una transformaci?n al centro del extent dependiendo de si el extent de la imagen
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* original ha cambiado o no.
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*/
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private Point2D transformCenter(Rectangle2D imgExtent, Point2D center){ |
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if( lastViewPort[0] != imgExtent.getMinX() || |
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lastViewPort[1] != imgExtent.getMinY() ||
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lastViewPort[2] != imgExtent.getWidth() ||
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lastViewPort[3] != imgExtent.getHeight()){
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Point2D c = new Point2D.Double(); |
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c.setLocation(center.getX() - (lastViewPort[0] - imgExtent.getMinX()),
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center.getY() - (lastViewPort[1] - imgExtent.getMinY()));
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return c;
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} |
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return center;
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} |
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/**
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* Obtiene el valor del extent de la imagen obtenido desde un nodo
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* XML. A partir de este valor obtenido crea un punto en la capa.
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*/
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private double[] processFlyrGeoRasterNodeValue(NodeList nl){ |
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double[] res = null; |
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for(int j=0;j<nl.getLength();j++){ |
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Node geoNode = nl.item(j); |
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if(geoNode.getNodeName().equals("ViewPort")){ |
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res = new double[4]; |
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NodeList vpChildNodes = geoNode.getChildNodes(); |
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for(int i=0;i<vpChildNodes.getLength();i++){ |
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Node vpNode = vpChildNodes.item(i); |
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if(vpNode.getNodeName().equals("Extent")){ |
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NodeList extentChildNodes = vpNode.getChildNodes(); |
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for(int k=0;k<extentChildNodes.getLength();k++){ |
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Node extentNode = extentChildNodes.item(k); |
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if(extentNode.getNodeName().equals("X")) |
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res[0] = Double.valueOf(extentNode.getFirstChild().getNodeValue()).doubleValue(); |
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if(extentNode.getNodeName().equals("Y")) |
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res[1] = Double.valueOf(extentNode.getFirstChild().getNodeValue()).doubleValue(); |
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if(extentNode.getNodeName().equals("Width")) |
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res[2] = Double.valueOf(extentNode.getFirstChild().getNodeValue()).doubleValue(); |
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if(extentNode.getNodeName().equals("Height")) |
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res[3] = Double.valueOf(extentNode.getFirstChild().getNodeValue()).doubleValue(); |
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} |
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} |
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} |
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} |
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} |
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return res;
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} |
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|
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/**
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* Obtiene el valor de un punto georeferenciado obtenido desde un nodo
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* XML. A partir de este valor obtenido crea un punto en la capa.
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*/
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private void processGeoPointNodeValue(NodeList nl){ |
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Point2D leftCenter = null, rightCenter = null; |
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ViewPort leftViewPort = null, rightViewPort = null; |
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double pX = 0D, pY = 0D, mX = 0D, mY = 0D; |
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boolean active = false; |
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for(int j=0;j<nl.getLength();j++){ |
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Node geoNode = nl.item(j); |
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if(geoNode.getNodeName().equals("PixelX")) |
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pX = Double.valueOf(geoNode.getFirstChild().getNodeValue()).doubleValue();
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if(geoNode.getNodeName().equals("PixelY")) |
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pY = Double.valueOf(geoNode.getFirstChild().getNodeValue()).doubleValue();
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if(geoNode.getNodeName().equals("MapX")) |
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mX = Double.valueOf(geoNode.getFirstChild().getNodeValue()).doubleValue();
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if(geoNode.getNodeName().equals("MapY")) |
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mY = Double.valueOf(geoNode.getFirstChild().getNodeValue()).doubleValue();
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if(geoNode.getNodeName().equals("Active")) |
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active = Boolean.valueOf(geoNode.getFirstChild().getNodeValue()).booleanValue();
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if(geoNode.getNodeName().equals("LeftCenterPoint")) |
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leftCenter = processCenterPoint(geoNode.getChildNodes()); |
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if(geoNode.getNodeName().equals("RightCenterPoint")) |
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rightCenter = processCenterPoint(geoNode.getChildNodes()); |
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if(geoNode.getNodeName().equals("LeftViewPort")) |
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leftViewPort = processViewPort(geoNode.getChildNodes()); |
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if(geoNode.getNodeName().equals("RightViewPort")) |
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rightViewPort = processViewPort(geoNode.getChildNodes()); |
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} |
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Point2D p = new Point2D.Double(); |
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p.setLocation(pX, pY); |
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Point2D m = new Point2D.Double(); |
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m.setLocation(mX, mY); |
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lyrPoints.getPointManager().newEmptyPoint(); |
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View theView = null; |
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try{
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theView = (View)PluginServices.getMDIManager().getActiveView();
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}catch(ClassCastException exc){ |
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return;
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} |
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int pos = lyrPoints.getCountPoints() -1; |
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try{
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leftViewPort = transformMiniExtent(lyrPoints.getLyrGeoRaster().getFullExtent(), leftViewPort); |
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leftCenter = transformCenter(lyrPoints.getLyrGeoRaster().getFullExtent(), leftCenter); |
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}catch(DriverException ex){}
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lyrPoints.setPointActive(pos, active); |
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lyrPoints.setLeftCenterPoint(pos,leftCenter); |
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lyrPoints.setRightCenterPoint(pos, rightCenter); |
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lyrPoints.setLeftViewPort(pos, leftViewPort); |
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lyrPoints.setRightViewPort(pos, rightViewPort); |
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lyrPoints.getPointManager().updateData(pos + 1, p, m, lyrPoints.getPointManager().getDialog(), theView);
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if(lyrPoints.getCountPoints() > 0){ |
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GeoreferencingDialog grd = lyrPoints.getPointManager().getDialog(); |
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grd.getConectorPanel().getDataPointsTabPanel(). |
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getSelectPointsPanel().getTableControlerPanel().setNItems(lyrPoints.getCountPoints()); |
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grd.getConectorPanel().getDataPointsTabPanel(). |
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getTablePointsPanel().getTableControlerPanel().setNItems(lyrPoints.getCountPoints()); |
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lyrPoints.getPointManager().selectPoint(0, grd);
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} |
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//lyrPoints.addPoint(p, m);
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} |
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/**
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* Procesa un nodo correspondiente a un extent
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* @param nodeList Lista de nodos
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* @return Rectangle2D
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*/
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private Rectangle2D processExtent(NodeList nodeList){ |
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Rectangle2D r = new Rectangle2D.Double(); |
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double x = 0D, y = 0D, width = 0D, height = 0D; |
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for(int j=0;j<nodeList.getLength();j++){ |
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Node node = nodeList.item(j); |
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if(node.getNodeName().equals("X")) |
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x = Double.valueOf(node.getFirstChild().getNodeValue()).doubleValue();
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if(node.getNodeName().equals("Y")) |
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y = Double.valueOf(node.getFirstChild().getNodeValue()).doubleValue();
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if(node.getNodeName().equals("Width")) |
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width = Double.valueOf(node.getFirstChild().getNodeValue()).doubleValue();
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if(node.getNodeName().equals("Height")) |
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height = Double.valueOf(node.getFirstChild().getNodeValue()).doubleValue();
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} |
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r.setRect(x, y, width, height); |
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return r;
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} |
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/**
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* Procesa un nodo correspondiente a la dimension de un viewPort
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* @param nodeList Lista de nodos
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* @return Rectangle2D
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*/
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private Dimension processImageSize(NodeList nodeList){ |
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Dimension d = new Dimension(); |
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double x = 0D, y = 0D; |
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for(int j=0;j<nodeList.getLength();j++){ |
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Node node = nodeList.item(j); |
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if(node.getNodeName().equals("Width")) |
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x = Double.valueOf(node.getFirstChild().getNodeValue()).doubleValue();
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if(node.getNodeName().equals("Height")) |
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y = Double.valueOf(node.getFirstChild().getNodeValue()).doubleValue();
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} |
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d.setSize(x, y); |
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return d;
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} |
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|
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/**
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* Procesa el nodo correspondiente a un viewport de una mini imagen
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* @param nodeList Lista de nodos
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* @return ViewPort obtenido
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*/
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private ViewPort processViewPort(NodeList nodeList){
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ViewPort vp = new ViewPort(null); |
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for(int j=0;j<nodeList.getLength();j++){ |
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Node node = nodeList.item(j); |
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if(node.getNodeName().equals("Projection")) |
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vp.setProjection(ProjectionPool.get(node.getFirstChild().getNodeValue())); |
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if(node.getNodeName().equals("Extent")) |
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vp.setExtent(processExtent(node.getChildNodes())); |
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if(node.getNodeName().equals("Dimension")) |
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vp.setImageSize(processImageSize(node.getChildNodes())); |
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} |
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vp.setScale(); |
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return vp;
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} |
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|
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/**
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* Procesa un node correspondiente a un punto central de una
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* mini imagen
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* @param nodeList Lista de elementos del nodo centro
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* @return Punto obtenido
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*/
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private Point2D processCenterPoint(NodeList nodeList){ |
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Point2D p = new Point2D.Double(); |
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double x = 0D, y = 0D; |
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for(int j=0;j<nodeList.getLength();j++){ |
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Node node = nodeList.item(j); |
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if(node.getNodeName().equals("X")) |
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x = Double.valueOf(node.getFirstChild().getNodeValue()).doubleValue();
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if(node.getNodeName().equals("Y")) |
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y = Double.valueOf(node.getFirstChild().getNodeValue()).doubleValue();
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} |
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p.setLocation(x, y); |
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return p;
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} |
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|
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//****************************************************
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|
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/**
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* Crea un elemento simple xml de la forma <elem>texNode</elem>
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* a?adiendoselo al elemento padre pasado por par?metro
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* @param parent Elemento padre del XML
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* @param elem tag
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* @param textNode valor
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*/
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private void createSimpleElement(Element parent, String elem, String textNode){ |
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Element itemlevel1 = null; |
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itemlevel1 = xmlDoc.createElement(elem); |
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itemlevel1.appendChild(xmlDoc.createTextNode(textNode)); |
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parent.appendChild(itemlevel1); |
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} |
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|
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/**
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* Crear un bloque que representa un viewport
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* @param parent Elemento padre del XML
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* @param elem tag
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* @param values lista de valores
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*/
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private void createViewPortNode(Element parent, String elem, String[] values){ |
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Element itemlevel1 = null; |
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Element itemlevel2 = null; |
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itemlevel1 = xmlDoc.createElement(elem); |
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createSimpleElement(itemlevel1, "Projection", values[6]); |
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itemlevel2 = xmlDoc.createElement("Extent");
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createSimpleElement(itemlevel2, "X", values[0]); |
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createSimpleElement(itemlevel2, "Y", values[1]); |
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createSimpleElement(itemlevel2, "Width", values[2]); |
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createSimpleElement(itemlevel2, "Height", values[3]); |
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itemlevel1.appendChild(itemlevel2); |
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itemlevel2 = xmlDoc.createElement("Dimension");
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createSimpleElement(itemlevel2, "Width", values[4]); |
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createSimpleElement(itemlevel2, "Height", values[5]); |
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itemlevel1.appendChild(itemlevel2); |
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parent.appendChild(itemlevel1); |
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} |
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|
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/**
|
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* Convierte la capa a georreferenciar a un elemento XML que ser? a?adidoo al
|
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* documento.
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* @param lyrGeo Capa a georreferenciar
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*/
|
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private void createXMLFLyrGeoRasterNode(FLyrGeoRaster lyrGeo) { |
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Element xmlGeoPoint;
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xmlGeoPoint = xmlDoc.createElement("FLyrGeoRaster");
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generalTag.appendChild(xmlGeoPoint); |
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xmlGeoPoint.setAttribute("Name", lyrGeo.getName());
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String[] vpData = {String.valueOf(lyrGeo.getMinX()), |
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String.valueOf(lyrGeo.getMinY()),
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String.valueOf(lyrGeo.getWidth()),
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String.valueOf(lyrGeo.getHeight()),
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String.valueOf(lyrGeo.getImageWidth()),
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String.valueOf(lyrGeo.getImageHeight()),
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lyrGeo.getProjection().getAbrev()}; |
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createViewPortNode(xmlGeoPoint, "ViewPort", vpData);
|
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} |
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|
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/**
|
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* Convierte un geopunto a un elemento XML que ser? a?adido al
|
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* documento.
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* @param geoPoint GeoPoint
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* @param i Posici?n del punto en la lista
|
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*/
|
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private void createXMLGeoPointNode(GeoPoint geoPoint, int i) { |
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Element xmlGeoPoint;
|
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Element itemlevel1;
|
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|
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xmlGeoPoint = xmlDoc.createElement("GeoPoint");
|
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xmlGeoPoint.setAttribute("n", String.valueOf(i)); |
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generalTag.appendChild(xmlGeoPoint); |
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|
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createSimpleElement(xmlGeoPoint, "PixelX", String.valueOf(geoPoint.pixelPoint.getX())); |
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createSimpleElement(xmlGeoPoint, "PixelY", String.valueOf(geoPoint.pixelPoint.getY())); |
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createSimpleElement(xmlGeoPoint, "MapX", String.valueOf(geoPoint.mapPoint.getX())); |
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createSimpleElement(xmlGeoPoint, "MapY", String.valueOf(geoPoint.mapPoint.getY())); |
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createSimpleElement(xmlGeoPoint, "Active", String.valueOf(geoPoint.active)); |
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|
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itemlevel1 = xmlDoc.createElement("LeftCenterPoint");
|
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createSimpleElement(itemlevel1, "X", String.valueOf(geoPoint.leftCenterPoint.getX())); |
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createSimpleElement(itemlevel1, "Y", String.valueOf(geoPoint.leftCenterPoint.getY())); |
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xmlGeoPoint.appendChild(itemlevel1); |
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|
448 |
itemlevel1 = xmlDoc.createElement("RightCenterPoint");
|
449 |
createSimpleElement(itemlevel1, "X", String.valueOf(geoPoint.rightCenterPoint.getX())); |
450 |
createSimpleElement(itemlevel1, "Y", String.valueOf(geoPoint.rightCenterPoint.getY())); |
451 |
xmlGeoPoint.appendChild(itemlevel1); |
452 |
|
453 |
String[] values1 = {String.valueOf(geoPoint.leftViewPort.getExtent().getX()), |
454 |
String.valueOf(geoPoint.leftViewPort.getExtent().getY()),
|
455 |
String.valueOf(geoPoint.leftViewPort.getExtent().getWidth()),
|
456 |
String.valueOf(geoPoint.leftViewPort.getExtent().getHeight()),
|
457 |
String.valueOf(geoPoint.leftViewPort.getImageWidth()),
|
458 |
String.valueOf(geoPoint.leftViewPort.getImageHeight()),
|
459 |
geoPoint.leftViewPort.getProjection().getAbrev()}; |
460 |
createViewPortNode(xmlGeoPoint, "LeftViewPort", values1);
|
461 |
|
462 |
String[] values2 = {String.valueOf(geoPoint.rightViewPort.getExtent().getX()), |
463 |
String.valueOf(geoPoint.rightViewPort.getExtent().getY()),
|
464 |
String.valueOf(geoPoint.rightViewPort.getExtent().getWidth()),
|
465 |
String.valueOf(geoPoint.rightViewPort.getExtent().getHeight()),
|
466 |
String.valueOf(geoPoint.rightViewPort.getImageWidth()),
|
467 |
String.valueOf(geoPoint.rightViewPort.getImageHeight()),
|
468 |
geoPoint.rightViewPort.getProjection().getAbrev()}; |
469 |
|
470 |
createViewPortNode(xmlGeoPoint, "RightViewPort", values2);
|
471 |
} |
472 |
|
473 |
//****************************************************
|
474 |
|
475 |
/**
|
476 |
* escribe a disco el texto XML
|
477 |
* @param textXML Texto XML
|
478 |
* @param fileName Nombre del fichero
|
479 |
*/
|
480 |
private void XML2File(String textXML, String fileName) { |
481 |
try {
|
482 |
OutputStream fout= new FileOutputStream(fileName); |
483 |
OutputStream bout= new BufferedOutputStream(fout); |
484 |
OutputStreamWriter out = new OutputStreamWriter(bout); |
485 |
out.write(textXML); |
486 |
out.flush(); |
487 |
out.close(); |
488 |
}catch (IOException e) { |
489 |
System.out.println(e.getMessage());
|
490 |
} |
491 |
} |
492 |
|
493 |
/**
|
494 |
* Convierte el objeto Document que contiene el XML construido a
|
495 |
* texto XML para que podamos salvarlo a disco.
|
496 |
* @return Cadena de texto XML
|
497 |
*/
|
498 |
private String Document2Text() { |
499 |
StringWriter strWriter = null; |
500 |
XMLSerializer xmlSerializer = null;
|
501 |
OutputFormat outFormat = null;
|
502 |
try {
|
503 |
xmlSerializer = new XMLSerializer();
|
504 |
strWriter = new StringWriter(); |
505 |
outFormat = new OutputFormat();
|
506 |
|
507 |
outFormat.setEncoding("ISO-8859-15");
|
508 |
outFormat.setIndenting(true);
|
509 |
outFormat.setIndent(4);
|
510 |
|
511 |
xmlSerializer.setOutputCharStream(strWriter); |
512 |
xmlSerializer.setOutputFormat(outFormat); |
513 |
xmlSerializer.serialize(xmlDoc); |
514 |
strWriter.close(); |
515 |
} catch (IOException ioEx) { |
516 |
System.out.println("Error : " + ioEx); |
517 |
} |
518 |
return strWriter.toString();
|
519 |
} |
520 |
|
521 |
//**********************End Methods***************************
|
522 |
} |