/* ***** BEGIN LICENSE BLOCK ***** * Version: MPL 1.1/GPL 2.0/LGPL 2.1 * * The contents of this file are subject to the Mozilla Public License Version * 1.1 (the "License"); you may not use this file except in compliance with * the License. You may obtain a copy of the License at * http://www.mozilla.org/MPL/ * * Software distributed under the License is distributed on an "AS IS" basis, * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License * for the specific language governing rights and limitations under the * License. * * The Original Code is the Firefox download visualization project. * * The Initial Developer of the Original Code is * Alistair MacDonald - hyper-metrix.com * Portions created by the Initial Developer are Copyright (C) 2009 * the Initial Developer. All Rights Reserved. * * Contributor(s): * Alistair MacDonald (Twitter: @F1LT3R) - hyper-metrix.com * Anders Holbøll - optimization of SVG; code cleanup * Daniel Einspanjer - Mozilla Corporation * Dave Dash - Mozilla Corporation * * Alternatively, the contents of this file may be used under the terms of * either the GNU General Public License Version 2 or later (the "GPL"), or * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), * in which case the provisions of the GPL or the LGPL are applicable instead * of those above. If you wish to allow use of your version of this file only * under the terms of either the GPL or the LGPL, and not to allow others to * use your version of this file under the terms of the MPL, indicate your * decision by deleting the provisions above and replace them with the notice * and other provisions required by the GPL or the LGPL. If you do not delete * the provisions above, a recipient may use your version of this file under * the terms of any one of the MPL, the GPL or the LGPL. * * ***** END LICENSE BLOCK ***** */ (function(){ var prevScrollX=-1,prevScrollY=-1,prevZoom=-1,prevFrame=-2; var mouseX=0,mouseY=0,scrollX=0,scrollY=0; var grabX=0, grabY=0,mouseDown=false; var width=640,height=320; var zoom=1; var wheel={ // Wheel function based on code by Adomas Paltanavicius. Thank you sir! event:function(event){ // http://adomas.org/javascript-mouse-wheel/index.html var delta=0; if(!event)event=window.event; if(event.wheelDelta){delta=event.wheelDelta/120;if(window.opera)delta=-delta;} else if(event.detail){delta=-event.detail/3;} if(delta){wheel.handle(delta); event.preventDefault?event.preventDefault():0; event.returnValue=false; } }, handle:function(delta){ if(delta<1){zoom=zoom>1?zoom-=.1:1;} else{zoom=zoom<10?zoom+=.1:10;} } } //window.addEventListener('DOMMouseScroll',wheel.event,false); var initMap = function(){ var _ = this; worldMap = 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[1194,176,-7,-4,-23,-9,19,-1,19,11,12,3,20,3,-19,0,-21,-3], [929,174,8,-1,-3,3,-5,-2], [1128,172,-34,-4,-16,-4,12,-3,-12,-1,-15,0,-3,-5,19,-1,35,4,34,15,-20,-1], [3990,164,33,-9,13,4,20,6,-40,4,-26,-5], [977,164,20,0,-11,3,-9,-3], [3922,158,-15,-4,-4,-8,-7,-2,-26,4,-12,-1,12,-3,8,-4,37,-12,29,9,22,8,14,7,-27,8,-31,-2], [3244,140,6,-4,6,2,-6,3,-6,-1], [3361,142,8,-1,-3,3,-5,-2], [3376,136,-8,-8,-2,4,-5,1,2,-6,17,4,4,11,-8,-6], [3262,136,15,-4,-4,5,-11,-1], [3408,136,30,-4,0,4,-30,0], [3460,132,18,-4,2,4,-18,4,-2,-4]]; var seav=document.getElementById('sea'); var seac=seav.getContext('2d'); var landv=document.getElementById('land'); var landc=landv.getContext('2d'); var v=document.getElementById('vdu'); var c=v.getContext('2d'); var f=function(n){ return { x:parseFloat(n[0][0]), y:n[1]?parseFloat(n[1][0]):0 } } $(v).tooltip({bodyHandler:function(){return'Use the mousewheel to zoom in and then click and drag to pan.'}}); v.addEventListener('DOMMouseScroll',wheel.event,false); v.addEventListener("mousedown",function(e){ origX=scrollX;origY=scrollY; grabX=mouseX;grabY=mouseY; mouseDown=true; },false); v.addEventListener("mouseup",function(e){ mouseDown=false; },false); v.addEventListener("mousemove",function(e){ try{ var scrolX=window.scrollX!=null?window.scrollX:window.pageXOffset; var scrolY=window.scrolY!=null?window.scrollY:window.pageYOffset; mouseX=(e.clientX-v.offsetLeft+scrolX); mouseY=(e.clientY-v.offsetTop+scrolY); mouseY>0&&mouseY0&&mouseX4){g=c.createRadialGradient(a[0][0],a[0][1],a[0][2],a[0][3],a[0][4],a[0][5]);} else{g=c.createLinearGradient(a[0][0],a[0][1],a[0][2],a[0][3]);} for(var i in a){i>0?g.addColorStop(1/(l-2)*(i-1),a[i]):0;} return g; } var sea =make(grad.perl); // var sea = make(grad.grey); var land=make(grad.land); // var land=make(grad.red); // var fire=make(grad.fire); var fire=make(grad.gold); var ll=function(lat,lon){ return { x:(180+lon)*width/360, y:(90-lat)*height/180 } } var startTime=-1; ////////////////////////////////////////////////////////////////////////// var drawSea=function(c){ c.shadowBlur=0; c.fillStyle=sea; c.globalAlpha=.7; c.fillRect(0,0,640,320); } var drawLand=function(c, scrollX, scrollY, zoom){ c.clearRect(0,0,640,320); c.save(); tran(c, scrollX, scrollY, zoom); c.fillStyle=land; c.scale(.5,.5); c.globalAlpha=1; c.shadowOffsetX=0; c.shadowOffsetY=3; c.shadowBlur=3; c.shadowColor='rgba(0,0,0,.5)'; img(c); c.strokeStyle="#048"; c.lineWidth=.5; c.stroke(); c.restore(); } var drawData=function(c, scrollX, scrollY, zoom, frame){ c.clearRect(0,0,640,320); c.save(); tran(c, scrollX, scrollY, zoom); if(data){ c.globalAlpha=1; c.fillStyle="#fa0;"; c.strokeStyle="#840" c.lineWidth=.4; try{ c.shadowOffsetX=0; c.shadowOffsetY=5; c.shadowBlur=3; c.shadowColor='rgba(255,255,255,.25)'; // Sort such that pins are drawn from the north, so a pins are covered by pins slightly to the south var loc = data.seconds[frame].locations.sort(function(a,b) {return b.latitude-a.latitude}); for(var i = 0; i < loc.length; i++){ pin=loc[i]; p=ll(pin.latitude,pin.longitude); // perhaps we should skip through this array quicker when things get heavy? c.save(); c.translate(p.x,p.y-3); c.beginPath(); c.moveTo(0,0); c.lineTo(2,-2); c.lineTo(1,-2); c.lineTo(1,-4); c.lineTo(-1,-4); c.lineTo(-1,-2); c.lineTo(-2,-2); c.closePath(); c.stroke(); c.fill(); c.restore(); } }catch(e){} c.shadowBlur=0; } c.restore(); } var tran=function(c, scrollX, scrollY, zoom){ var s = zoom*zoom; c.translate(310*(1-s) + s*scrollX, 155*(1-s) + s*scrollY); c.scale(s, s); } seac.clearRect(0,0,640,320); drawSea(seac); var draw=function(){ var sX=scrollX, sY=scrollY, z=zoom, f=Math.floor(((new Date()).getTime()-startTime)/1000); if (prevScrollX!=sX || prevScrollY!=sY || prevZoom!=z) { drawLand(landc, sX, sY, z); } if (prevScrollX!=sX || prevScrollY!=sY || prevZoom!=z || prevFrame!=f) { if (data && data.seconds && data.seconds[f]) { drawData(c, sX, sY, z, f); } } prevScrollX=sX; prevScrollY=sY; prevZoom=z; prevFrame=f; setTimeout(draw, 100); } ////////////////////////////////////////////////////////////////////////// var getData = function() { $.getJSON("data/latlng_report.json", function(json) {data=json; startTime = (new Date()).getTime();}); } window.setInterval(getData, 60000); getData(); draw(); } addEventListener("DOMContentLoaded",initMap,!true); var data = {}; })();