Mercurial > mxd2map
view src/java/de/intevation/mxd/reader/MapReader.java @ 259:8fe9ccc77962
Introduced a MapScript helper class and improved metadata handling.
author | raimund renkert <raimund.renkert@intevation.de> |
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date | Tue, 16 Aug 2011 13:09:57 +0200 |
parents | df4e0946ef02 |
children | 5a2b5bc066eb |
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/* * Copyright (c) 2011 by Intevation GmbH, Germany <info@intevation.de> * * This file is part of MXD2map. * * This program is free software under the LGPL (>=v2.1) * Read the file LICENCE.txt coming with the software for details * or visit http://www.gnu.org/licenses/ if it does not exist. * * MXD2map has been developed on behalf of the * Bundesamt fuer Seeschifffahrt und Hydrographie (BSH) in Hamburg * by Intevation GmbH. * * Authors: * Raimund Renkert <raimund.renkert@intevation.de> * Bjoern Schilberg <bjoern.schilberg@intevation.de> * Stephan Holl <stephan.holl@intevation.de> */ package de.intevation.mxd.reader; import java.io.IOException; import org.apache.log4j.Logger; import com.esri.arcgis.carto.IMap; import com.esri.arcgis.carto.Map; import com.esri.arcgis.geometry.ISpatialReference; import com.esri.arcgis.geometry.ProjectedCoordinateSystem; import com.esri.arcgis.geometry.GeographicCoordinateSystem; import com.esri.arcgis.geometry.UnknownCoordinateSystem; import com.esri.arcgis.geometry.Projection; import com.esri.arcgis.geometry.IEnvelope; import org.w3c.dom.Element; import de.intevation.mxd.utils.MapToXMLUtils; /** * Reads map information. * * @author <a href="mailto:raimund.renkert@intevation.de">Raimund Renkert</a> */ public class MapReader { /** * The Logger. */ private static final Logger logger = Logger.getLogger(MapReader.class); /** * Private member. */ private Map map; private MapToXMLUtils util; /** * Constructor with ArcGIS map. * * @param map The ArcGIS map object. */ public MapReader(IMap map) throws Exception { logger.debug("constructor()"); if(map instanceof Map) { this.map = (Map)map; } else { throw new Exception("Not an instance of \"Map\"!"); } } /** * Reads the Map attributes. */ public void read() throws IOException { logger.debug("read()"); if(util == null) { throw new IOException("Can not write to document."); } //Create XML Element for map. Element mapElement; try{ mapElement = util.createMap(); } catch(Exception e){ logger.error("Could not create DOM element. Aborting."); throw new IOException("Error creating DOM element."); } //Read map name. try { mapElement.setAttribute("name", map.getName()); } catch(IOException ioe) { logger.warn( "Could not read map name." + " Setting map name to \"default-map\""); mapElement.setAttribute("name", "default-map"); } //Read map extent. try { IEnvelope ext = map.getExtent(); mapElement.setAttribute( "extent_max_x", String.valueOf(ext.getXMax())); mapElement.setAttribute( "extent_max_y", String.valueOf(ext.getYMax())); mapElement.setAttribute( "extent_min_x", String.valueOf(ext.getXMin())); mapElement.setAttribute( "extent_min_y", String.valueOf(ext.getYMin())); } catch(IOException ioe) { logger.warn("Could not read map extend. Setting to 0, 0, 0, 0."); mapElement.setAttribute("extend_max_x", "0"); mapElement.setAttribute("extend_min_x", "0"); mapElement.setAttribute("extend_max_y", "0"); mapElement.setAttribute("extend_min_y", "0"); } //Read map units. int units = 0; try { units = map.getMapUnits(); } catch(IOException ioe) { logger.warn( "Could not read map units." + " Setting map units to unknown."); units = 0; } String s_units; switch(units) { case 1: s_units = "inches"; break; case 2: s_units = "points"; break; case 3: s_units = "feet"; break; case 4: s_units = "yards"; break; case 5: s_units = "miles"; break; case 6: s_units = "nauticalmiles"; break; case 7: s_units = "millimeters"; break; case 8: s_units = "centimeters"; break; case 9: s_units = "meters"; break; case 10: s_units = "kilometers"; break; case 11: s_units = "degree"; break; case 12: s_units = "decimeters"; break; case 13: s_units = "units_last"; break; default : s_units = "unknown"; break; } mapElement.setAttribute("units", s_units); if(units == 0) { logger.warn( "Unknown units." + " Please edit units in resulting mapfile."); } try { mapElement.setAttribute( "scale", String.valueOf(map.getMaxScale())); } catch(IOException ioe) { logger.warn("Could not read map scale. Setting map scale to 1000"); mapElement.setAttribute("scale", "1000"); } //Read the projection. try { ISpatialReference sr = map.getSpatialReference(); int projection = 0; if(sr instanceof ProjectedCoordinateSystem) { ProjectedCoordinateSystem pcs = (ProjectedCoordinateSystem)sr; projection = pcs.getFactoryCode(); } else if(sr instanceof GeographicCoordinateSystem) { GeographicCoordinateSystem gcs = (GeographicCoordinateSystem)sr; projection = gcs.getFactoryCode(); } else if(sr instanceof UnknownCoordinateSystem) { UnknownCoordinateSystem ucs = (UnknownCoordinateSystem)sr; projection = 0; } else{ logger.debug( "Unknown SpatialReference: " + sr.getClass().toString()); } if(projection == 0) { logger.warn( "Unknown projection." + " Please edit projection in resulting mapfile."); } mapElement.setAttribute("projection", String.valueOf(projection)); } catch(IOException ioe) { logger.warn( "Could not read map projection." + " Setting map projection to unknown."); mapElement.setAttribute("projection", "Unknown"); } } /** * Set the utilities. */ public void setUtil(MapToXMLUtils util) { this.util = util; } } // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :