001/**
002 * Copyright (c) 2012, The University of Southampton and the individual contributors.
003 * All rights reserved.
004 *
005 * Redistribution and use in source and binary forms, with or without modification,
006 * are permitted provided that the following conditions are met:
007 *
008 *   *  Redistributions of source code must retain the above copyright notice,
009 *      this list of conditions and the following disclaimer.
010 *
011 *   *  Redistributions in binary form must reproduce the above copyright notice,
012 *      this list of conditions and the following disclaimer in the documentation
013 *      and/or other materials provided with the distribution.
014 *
015 *   *  Neither the name of the University of Southampton nor the names of its
016 *      contributors may be used to endorse or promote products derived from this
017 *      software without specific prior written permission.
018 *
019 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
020 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
021 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
022 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
023 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
024 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
025 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
026 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
027 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
028 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
029 */
030package org.openimaj.tools.twitter.modes.filter;
031
032import java.util.ArrayList;
033import java.util.List;
034import org.kohsuke.args4j.Option;
035import org.openimaj.math.geometry.point.Point2d;
036import org.openimaj.math.geometry.point.Point2dImpl;
037import org.openimaj.math.geometry.shape.Rectangle;
038import org.openimaj.twitter.USMFStatus;
039
040/**
041 * @author Sina Samangooei (ss@ecs.soton.ac.uk)
042 *
043 */
044public class GeoFilter extends TwitterPreprocessingPredicate {
045        
046        @Option(name="--bounding-box", aliases="-bb", required=false, usage="The bounding box to filter against.", metaVar="STRING")
047        String boundBox = "51.28,-0.489,51.686,0.236";
048        private Rectangle location = null;
049        
050        public GeoFilter(){
051                
052        }
053        
054        @Override
055        public boolean test(USMFStatus twitterStatus) {
056                if(twitterStatus.geo == null){
057                        return false;
058                }
059                
060                
061                //if(geomap == null) geomap = (Map<String, Object>) twitterStatus.coordinates;
062//              "geo":{"type":"Point","coordinates":[51.55047862,-0.29938507]}
063                List<Double> geolist = new ArrayList<Double>();
064                geolist.add(twitterStatus.geo[0]);
065                geolist.add(twitterStatus.geo[1]);
066                Point2d pos = new Point2dImpl(geolist.get(1).floatValue(),geolist.get(0).floatValue());
067                return location.isInside(pos);
068        }
069        
070        @Override
071        public void validate() {
072                getLocation();
073        }
074        
075        private Rectangle getLocation() {
076                if(this.location == null){
077                        double minLon,minLat,maxLon,maxLat;
078                        String[] parts = boundBox.split(",");
079                        minLat = Double.parseDouble(parts[0]);
080                        minLon = Double.parseDouble(parts[1]);
081                        maxLat = Double.parseDouble(parts[2]);
082                        maxLon = Double.parseDouble(parts[3]);
083                        
084                        Point2d minp = new Point2dImpl((float)minLon,(float)minLat);
085                        Point2d maxp = new Point2dImpl((float)maxLon,(float)maxLat);
086                        this.location  = new Rectangle(minp,maxp);
087                }
088                return location;
089        }
090}