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}