org.jdesktop.swingx.mapviewer.esri.ESRITileFactory Maven / Gradle / Ivy

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Set of utilities and widgets to simplify interaction of Swing based GUIs with the web applications of any kind.
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/*
 * ESRITileFactory.java
 *
 * Created on November 7, 2006, 10:51 AM
 *
 * To change this template, choose Tools | Template Manager
 * and open the template in the editor.
 */

package org.jdesktop.swingx.mapviewer.esri;

import java.awt.geom.Point2D;
import java.math.BigDecimal;
import java.math.RoundingMode;
import org.jdesktop.swingx.mapviewer.DefaultTileFactory;
import org.jdesktop.swingx.mapviewer.GeoPosition;
import org.jdesktop.swingx.mapviewer.TileFactoryInfo;
import org.jdesktop.swingx.mapviewer.util.GeoUtil;

/**
 *
 * @author rbair
 */
public class ESRITileFactory extends DefaultTileFactory {
    private static final String projection = "8"; //mercator projection
    private static final String format = "png"; //get pngs back
    private String username;
    private char[] password;
    private String userId;
    private String datasource; //should be enum
    
    /** Creates a new instance of ESRITileFactory */
    public ESRITileFactory() {
        super(new ESRITileProviderInfo());
        ((ESRITileProviderInfo)super.getInfo()).factory = this;
        datasource = "ArcWeb:TA.Streets.NA";
    }
    
    public void setUsername(String name) {
        this.username = name;
    }
    
    public void setPassword(char[] password) {
        this.password = password;
    }
    
    public void setUserID(String id) {
        //temp hack
        this.userId = id;
    }
    
    private static final class ESRITileProviderInfo extends TileFactoryInfo {
        private ESRITileFactory factory;
        
        private ESRITileProviderInfo() {
            super(0, 17, 18, 256, false, true, "http://www.arcwebservices.com/services/v2006/restmap?actn=getMap", "", "", "");
        }
        
        public String getTileUrl(int x, int y, int zoom) {
//                "&usrid=&ds=&c=-117.1817|34.0556&sf=52500&fmt=&ocs=";
            //System.out.println("getting tile at zoom: " + zoom);
            //System.out.println("map width at zoom = " + getMapWidthInTilesAtZoom(zoom));
            
            //provide the center point of the tile, in lat/long coords
            int tileY = y;
            int tileX = x;
            int pixelX = tileX * factory.getTileSize(zoom) + (factory.getTileSize(zoom) / 2);
            int pixelY = tileY * factory.getTileSize(zoom) + (factory.getTileSize(zoom) / 2);
            
            GeoPosition latlong = GeoUtil.getPosition(new Point2D.Double(pixelX, pixelY), zoom, this);
            
            //Chris is going to hate me for this (relying on 72dpi!), but:
            //72 pixels per inch. The earth is 24,859.82 miles in circumference, at the equator.
            //Thus, the earth is 24,859.82 * 5280 * 12 * 72 pixels in circumference.
            
            double numFeetPerDegreeLong = 24859.82 * 5280 / 360; //the number of feet per degree longitude at the equator
            double numPixelsPerDegreeLong = getLongitudeDegreeWidthInPixels(zoom);
            double numPixelsPerFoot = 96 * 12;
            int sf = (int)(numFeetPerDegreeLong / (numPixelsPerDegreeLong / numPixelsPerFoot));
            
            //round lat and long to 5 decimal places
            BigDecimal lat = new BigDecimal(latlong.getLatitude());
            BigDecimal lon = new BigDecimal(latlong.getLongitude());
            lat = lat.setScale(5, RoundingMode.DOWN);
            lon = lon.setScale(5, RoundingMode.DOWN);
            System.out.println("Tile      : [" + tileX + ", " + tileY + "]");
            System.out.println("Pixel     : [" + pixelX + ", " + pixelY + "]");
            System.out.println("Lat/Long  : [" + latlong.getLatitude() + ", " + latlong.getLongitude() + "]");
            System.out.println("Lat2/Long2: [" + lat.doubleValue() + ", " + lon.doubleValue() + "]");
            
            String url = baseURL +
                    "&usrid=" + factory.userId +
                    "&ds=" + factory.datasource +
                    "&c=" + lon.doubleValue() + "%7C" + lat.doubleValue() +
                    "&sf=" + sf + //52500" +
                    "&fmt=" + format +
                    "&ocs=" + projection;
            System.out.println("the URL: " + url);
            return url;
        }
    }
}