root / trunk / libraries / libArcIMS / src / org / gvsig / remoteClient / arcims / ArcXMLImage.java @ 8109
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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) 2006 Prodevelop 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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* For more information, contact:
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*
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* Generalitat Valenciana
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* Conselleria d'Infraestructures i Transport
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* Av. Blasco Ib??ez, 50
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* 46010 VALENCIA
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* SPAIN
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*
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* +34 963862235
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* gvsig@gva.es
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* www.gvsig.gva.es
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*
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* or
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*
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* Prodevelop Integraci?n de Tecnolog?as SL
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* Conde Salvatierra de ?lava , 34-10
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* 46004 Valencia
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* Spain
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*
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* +34 963 510 612
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* +34 963 510 968
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* gis@prodevelop.es
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* http://www.prodevelop.es
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*/
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package org.gvsig.remoteClient.arcims; |
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import org.gvsig.remoteClient.arcims.utils.ServiceInfoTags; |
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import org.gvsig.remoteClient.arcims.utils.ServiceInformation; |
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import java.awt.Color; |
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import java.awt.Dimension; |
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import java.awt.geom.Rectangle2D; |
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import java.text.DecimalFormat; |
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import java.text.DecimalFormatSymbols; |
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import java.util.Vector; |
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/**
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* Class that provides static methods to generate ImageServer related ArcXML requests
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* @author jsanz
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* @author jcarrasco
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*/
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public class ArcXMLImage extends ArcXML { |
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/**
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* Creates a complete request in ArcXML for an ImageService
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* from an ArcImsStatus; including extent, format and so on
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* @see org.gvsig.remoteClient.arcims.ArcImsStatus
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* @param status
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* @return String
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*/
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public static String getMapRequest(ArcImsStatus status) { |
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/**
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* Layers that we want to request
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*/
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Vector layers = status.getLayerIds();
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/**
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* The EPSG code that image requested will have,
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* the ArcIMS server will reproject data into this
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* code, see <a href="http://www.epsg.org">EPSG</a>
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*/
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String srs = new String(); |
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/**
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* We suppose that status.getSrs() allways will give a
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* string started by this string
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*/
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String ini_srs = ServiceInfoTags.vINI_SRS;
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/**
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* Gets de Decimal Separator from the status.ServiceInfo
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*/
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ServiceInformation si = status.getServiceInfo(); |
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char ds = si.getSeparators().getDs();
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/**
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* Is the ServiceInfo FeatureCoordsys assumed?
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*/
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boolean srsAssumed = si.isSrsAssumed();
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/**
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* Assign the srs from the status
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* @see org.gvsig.remoteClient.RemoteClientStatus#getSrs()
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*/
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if (!srsAssumed && status.getSrs().startsWith(ini_srs)) {
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srs = status.getSrs().substring(ini_srs.length()).trim(); |
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} else {
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srs = "";
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//System.err.println("The ArcIMS Service doesn't provide a SRS");
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} |
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return getImageRequest(ArcXML.getEnvelope(status.getExtent(), ds), //envelope |
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ArcXML.getFilterCoordsys(srs), //filter
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ArcXML.getFeatureCoordsys(srs), //feature
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status.getFormat(), //image format
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new Dimension(status.getWidth(), status.getHeight()), //image size |
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layers //layers to draw
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); |
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} |
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/**
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* Creates a custom ArcXML request to obtain a request projected by
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* the ArcIms server
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* @param srsInput The SRS of the coordinates provided
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* @param srsOutput The SRS of the coordinates needed
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* @param envelope Rectangle2D with the envelope provided
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* @param ds Char with the Decimal Separator
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* @param imageSize Dimension object
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* @param oneLayerId A dumb layer identificator (but valid) of the service
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* @return String
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*/
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public static String getCustomExtentRequest(String srsInput, |
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Rectangle2D envelope, String srsOutput, char ds, Dimension imageSize, |
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String format, String oneLayerId) { |
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/**
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* The returned request
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*/
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String request = new String(); |
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/**
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* To this request we only need a layer, i.e. the first of the service
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*/
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Vector layer = new Vector(1); |
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layer.add(oneLayerId); |
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request = getImageRequest(ArcXML.getEnvelope(envelope, ds), //envelope
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ArcXML.getFilterCoordsys(srsInput), //filter
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ArcXML.getFeatureCoordsys(srsOutput), //feature
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format, //image format
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imageSize, //image size
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layer //layers to draw
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); |
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return request;
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} |
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/**
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* Creates a complete request in ArcXML for an ImageService. This private
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* method is used for every request that needs a GET_IMAGE.
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*
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* @see ArcImsStatus
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* @see org.gvsig.remoteClient.arcims.ArcImsProtImageHandler#getServiceExtent
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* @param envelope Envelope of the request
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* @param filterCoordsys SRS of input data
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* @param featureCoordsys SRS of output data
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* @param format Image format (PNG,..)
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* @param imageSize Dimension object with image size to be requested
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* @param layerIds Vector with layer Ids to retrieve
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* @return String
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*/
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private static String getImageRequest(String envelope, |
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String filterCoordsys, String featureCoordsys, String format, |
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Dimension imageSize, Vector layerIds) { |
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/**
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* Building the heading of the request
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*/
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String request = new String(); |
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request = "<?xml version = '1.0' encoding = 'UTF-8'?>\r\n" +
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ArcXML.startRequest("1.1") +
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"\t\t<GET_IMAGE autoresize=\"false\" show=\"layers\">\r\n" +
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"\t\t\t<PROPERTIES>\r\n";
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if (!envelope.equals("")) { |
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request += ("\t\t\t\t" + envelope + "\r\n"); |
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} |
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if (imageSize != null) { |
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request += ("\t\t\t\t" + ArcXML.getImageSize(imageSize) + "\r\n"); |
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} |
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if (!featureCoordsys.equals("")) { |
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request += ("\t\t\t\t" + featureCoordsys + "\r\n"); |
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} |
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if (!filterCoordsys.equals("")) { |
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request += ("\t\t\t\t" + filterCoordsys + "\r\n"); |
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} |
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request += ("\t\t\t\t" +
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ArcXML.getBackground(Color.WHITE, Color.WHITE) + "\r\n"); |
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if (!format.equals("")) { |
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request += ("\t\t\t\t" + "<OUTPUT type=\"" + format + "\"/>\r\n"); |
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} |
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//Build the layerlist
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request += ("\t\t\t\t" + "<LAYERLIST order=\"true\">\r\n"); |
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//"\t\t\t\t\t"+"<LAYERDEF id=\""+status.getLayerNames()+"\" visible=\"true\"/>\r\n"+
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/**
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* Building the string that specifies what layers
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* will be requested
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*/
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for (int i = 0; i < layerIds.size(); i++) { |
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request += ("\t\t\t\t\t<LAYERDEF id=\"" +
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layerIds.elementAt(i).toString() + "\" visible=\"true\" />\r\n");
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} |
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/**
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* Building the end of the request
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*/
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request += ("\t\t\t\t" + "</LAYERLIST>\r\n" + |
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"\t\t\t</PROPERTIES>\r\n" + "\t\t</GET_IMAGE>\r\n" + |
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ArcXML.endRequest()); |
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//System.err.println(request);
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return request;
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} |
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/**
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* Creates the ArcXML retrieve INFO of a specific location
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* dependig if the layer is a FEATURECLASS or a IMAGE
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* @see org.gvsig.remoteClient.arcims.ArcImsProtImageHandler#getElementInfo(ArcImsStatus, int, int, int)
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* @param layerType A String with the layer type @see org.gvsig.remoteClient.arcims.utils.ServiceInfoTags
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* @param id The layer id to request
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* @param coords A pair of coordinates with the center of the request
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* @param dists A pair of distances to extend the point to a BoundaryBox
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* @param coordsys A valid EPSG code
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* @return String with the ArcXML
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*/
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public static String getInfoRequest(String layerType, String id, |
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double[] coords, double[] dists, String coordsys, char ds) { |
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StringBuffer sb = new StringBuffer(); |
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Rectangle2D rect = new Rectangle2D.Double(); |
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rect.setFrameFromDiagonal(coords[0] - dists[0], coords[1] - dists[1], |
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coords[0] + dists[0], coords[1] + dists[1]); |
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if (layerType.equals(ServiceInfoTags.vLAYERTYPE_F)) {
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sb.append(ArcXML.startRequest("1.1"));
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sb.append( |
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"\t\t<GET_FEATURES outputmode=\"xml\" checkesc=\"true\" geometry=\"false\" envelope=\"false\">\r\n");
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sb.append("\t\t\t<LAYER id=\"" + id + "\" />\r\n"); |
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sb.append("\t\t\t<SPATIALQUERY subfields=\"#ALL#\" >\r\n");
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if (!coordsys.equals("")) { |
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sb.append("\t\t\t\t" + ArcXML.getFeatureCoordsys(coordsys) +
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"\r\n");
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sb.append("\t\t\t\t" + ArcXML.getFilterCoordsys(coordsys) +
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"\r\n");
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} |
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sb.append( |
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"\t\t\t\t<SPATIALFILTER relation=\"area_intersection\">\r\n");
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sb.append(getEnvelope(rect, ds)); |
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sb.append("\t\t\t\t</SPATIALFILTER>\r\n");
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sb.append("\t\t\t</SPATIALQUERY>\r\n");
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sb.append("\t\t</GET_FEATURES>\r\n");
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sb.append(ArcXML.endRequest()); |
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} else if (layerType.equals(ServiceInfoTags.vLAYERTYPE_I)) { |
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double xCenter = rect.getCenterX();
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double yCenter = rect.getCenterY();
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//We need to format these values into the correct encoding
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DecimalFormatSymbols dfs = new DecimalFormatSymbols(); |
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dfs.setDecimalSeparator(ds); |
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DecimalFormat formatter = new DecimalFormat(PATRON, dfs); |
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String xF = formatter.format(xCenter);
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String yF = formatter.format(yCenter);
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sb.append(ArcXML.startRequest("1.1"));
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sb.append("\t\t<GET_RASTER_INFO x=\"" + xF + "\" y=\"" + yF + |
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"\" layerid=\"" + id + "\">\r\n"); |
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sb.append("\t\t\t<COORDSYS id=\"" + coordsys + "\"/>\r\n"); |
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sb.append("\t\t</GET_RASTER_INFO>\r\n");
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sb.append(ArcXML.endRequest()); |
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// System.err.println(sb.toString());
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} |
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return sb.toString();
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} |
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} |