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index.html
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<!doctype html>
<html>
<head>
<link rel="shortcut icon" href="data:image/x-icon;," type="image/x-icon">
<link rel="icon" href="data:;base64,iVBORw0KGgo=">
<title>Refugees by Mediterranean Sea</title>
<link rel="stylesheet" type="text/css" href="style.css">
<script src="https://maps.googleapis.com/maps/api/js?key=AIzaSyDC5znDfzJNHdK_Bc9jTPIVS4BUZhYeOAA"></script>
<script type="text/javascript" src="js/CanvasLayer.js"></script>
<script type="text/javascript" src="js/quadraticBezier.js"></script>
<script type="text/javascript" src="js/LatLon.js"></script>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.2.4/jquery.min.js"></script>
<script type="text/javascript" src="js/rAF.js"></script>
<script type="text/javascript" src="js/chroma.js"></script>
<script type="text/javascript" src="js/Glb.js"></script>
<script id="point-vertex-shader" type="x-shader/x-vertex">
attribute vec4 aStartPoint;
attribute vec4 aEndPoint;
attribute vec4 aMidPoint;
attribute float aEpoch;
attribute float aEndTime;
attribute float aSpan;
attribute float aTimeOffset;
uniform float uSize;
uniform float uEpoch;
uniform mat4 uMapMatrix;
uniform float uTotalTime;
vec4 bezierCurve(float t, vec4 P0, vec4 P1, vec4 P2) {
return (1.0-t)*(1.0-t)*P0 + 2.0*(1.0-t)*t*P1 + t*t*P2;
}
vec3 HUEtoRGB(float H){
float R = abs((H * 6.) - 3.) - 1.;
float G = 2. - abs((H * 6.) - 2.);
float B = 2. - abs((H * 6.) - 4.);
return clamp(vec3(R,G,B), 0.0, 1.0);
}
vec3 HSLtoRGB(vec3 HSL){
vec3 RGB = HUEtoRGB(HSL.x);
float C = (1. - abs(2. * HSL.z - 1.)) * HSL.y;
return (RGB - 0.5) * C + HSL.z;
}
float Epsilon = 1e-10;
vec3 RGBtoHCV(vec3 RGB){
// Based on work by Sam Hocevar and Emil Persson
vec4 P = (RGB.g < RGB.b) ? vec4(RGB.bg, -1.0, 2.0/3.0) : vec4(RGB.gb, 0.0, -1.0/3.0);
vec4 Q = (RGB.r < P.x) ? vec4(P.xyw, RGB.r) : vec4(RGB.r, P.yzx);
float C = Q.x - min(Q.w, Q.y);
float H = abs((Q.w - Q.y) / (6. * C + Epsilon) + Q.z);
return vec3(H, C, Q.x);
}
vec3 RGBtoHSL(vec3 RGB){
vec3 HCV = RGBtoHCV(RGB);
float L = HCV.z - HCV.y * 0.5;
float S = HCV.y / (1. - abs(L * 2. - 1.) + Epsilon);
return vec3(HCV.x, S, L);
}
vec4 calcColor(float p, vec3 c){
vec3 hsl = RGBtoHSL(c);
return vec4(HSLtoRGB(vec3(hsl.x, hsl.y, p)), 1.);
}
varying vec4 vColor;
void main() {
vec4 position;
if (uEpoch < aEpoch || (uEpoch > aEpoch + aSpan)) {
position = vec4(-1,-1,-1,-1);
}else {
float t = (uEpoch - aEpoch)/aSpan + aTimeOffset;
t = min(t, 1.);
t = max(t,0.);
vec4 pos = bezierCurve(t, aStartPoint, aMidPoint, aEndPoint);
position = uMapMatrix * vec4(pos.x, pos.y, 0, 1);
float luminance = clamp(1. - ((aEndTime - uEpoch)/uTotalTime), 0.35, 0.75);
vColor = calcColor(luminance, vec3(1.,0.,0.));
}
gl_Position = position;
gl_PointSize = uSize;
}
</script>
<script id="point-fragment-shader" type="x-shader/x-fragment">
precision mediump float;
varying vec4 vColor;
void main() {
float dist = length(gl_PointCoord.xy - vec2(.5, .5));
dist = 1. - (dist * 2.);
dist = max(0., dist);
gl_FragColor = vColor * dist;
}
</script>
<script type="text/javascript">
var map;
var circleLayer;
var circleContext;
var particleLayer;
var gl;
var resolutionScale = window.devicePixelRatio || 1;
var pixelsToWebGLMatrix = new Float32Array(16);
var mapMatrix = new Float32Array(16);
var program;
var refugees = {
geo_url: './geo_data/geo_data.json',
draw_url: './json_store/processed_data.json',
deaths_url: './json_store/death.json',
particle_url: './particles.bin',
ready: false,
pointCount: 0,
data: null,
arrayBuffer: null,
geo_data: {},
raw_data: {},
draw_data: {},
prev_shown: {},
paths: {},
deaths: {},
particles: null,
largestValue: {},
largestOfAll: 0
};
var playBack = {
playing: false,
player: null,
mouseDown: false,
mouseDownTimer: null,
timeline: new Timeline(),
cursor: null,
cursorLine: null
}
var drawBack = {
MAX_RADIUS: 3,
BASE_RADIUS: .25,
BASE_STROKE: .15,
MAX_AMOUNT: 30000,
origin_interpolate: 25,
asylum_interpolate: 10,
hover: {},
lasthover: null,
infowindow: null,
animateParticles: false,
animationRequestID: null,
colors: {
asylum: {
fill: 'rgba(255, 255, 255, .3)',
stroke: 'rgb(255, 255, 255)',
// fill: 'rgba(68,153,215, .3)',
// stroke: 'rgb(68,153,215)',
},
origin: {
fill: 'rgba(215, 68, 115, .3)',
stroke: 'rgb(215, 68, 115)',
},
deaths: {
fill: 'rgba(80, 44, 115, .3)',
stroke: 'rgb(80, 44, 115)',
},
}
}
function Date_M_Y(month, year){
this.month = month;
this.year = year;
}
function Timeline(){
this.timeEnum = {
oneHour: 60*60,
twoHours: 2*60*60,
threeHours: 3*60*60,
fourHours: 4*60*60,
sixHours: 6*60*60,
oneDay: 24*60*60,
twoDays: 2*24*60*60
}
this.currentTime = 0;
this.startTime = 0;
this.endTime = 0;
this.increment = this.timeEnum.fourHours;
this.playing = false;
}
(function(){
this.incrementTime = function() {
this.currentTime += this.increment;
};
this.setDate = function(date){
var startOfMonth = new Date(date.year, date.month-1, 1, 0, 0, 0);
var startOfNextMonth = new Date(date.year, date.month, 1, 0, 0, 0);
this.currentTime = this.startTime = (startOfMonth.getTime() - startOfMonth.getTimezoneOffset()*60000)/1000;
this.endTime = (startOfNextMonth.getTime() - startOfNextMonth.getTimezoneOffset()*60000)/1000;
};
this.setTime = function(percent){
this.currentTime = (percent*(this.endTime - this.startTime)) + this.startTime;
this.updateCursor();
}
this.resetMonth = function(){
this.currentTime = this.startTime;
this.updateCursor();
requestAnimationFrame(function(){
try{
particleUpdate();
}catch(err){
console.log("Not ready yet.");
}
});
};
this.isFinished = function(){
return (this.currentTime >= this.endTime);
}
this.animate = function(){
if(this.playing){
this.incrementTime();
if(this.isFinished()){
if(this.playing){
incrementMonth();
}
}
this.updateCursor();
}
particleLayer.setAnimate(this.playing);
};
this.startAnimation = function(){
this.playing = true;
particleLayer.setAnimate(true);
};
this.updateCursor = function(){
playBack.cursorLine.css('left', Math.round(((this.currentTime - this.startTime) / (this.endTime - this.startTime))*100) + '%');
};
}).call(Timeline.prototype)
function calculateRadius(amount){
return drawBack.particle_size;
}
function upDate(){
refugees.currentDate = new Date_M_Y($('.cursor').data('month'), $('.cursor').parent().data('year'));
playBack.cursor = $('.cursor');
playBack.cursorLine = $('.cursor .line');
if (!circleLayer.isAnimated())
circleLayer.setAnimate(true);
setTimeout(function(){
if(!playBack.playing){
circleLayer.setAnimate(false);
}
}, 1000);
updateHoverBox();
playBack.timeline.setDate(refugees.currentDate);
playBack.timeline.resetMonth();
}
// function testAllPaths(){
// var data = [];
// for(var or_key in refugees.paths){
// for(var asyl_key in refugees.paths[or_key]){
// var path = refugees.paths[or_key][asyl_key]["path"];
// data.push(or_key, asyl_key, path);
// }
// }
// delayExecute(data, 0);
// }
// function delayExecute(data, i){
// setTimeout(function(){
// console.log(data[i], data[i+1]);
// refugees.particles.addParticle(data[i+2]);
// console.log("done.");
// var j = i+3;
// if(j < data.length){
// delayExecute(data, j);
// }
// }, 3000);
// }
function togglePlayPause(){
playBack.playing = !playBack.playing;
$('#circle').children().toggleClass('play').toggleClass('pause');
if(playBack.playing){
play();
}else{
pause();
}
}
function incrementMonth(){
var $valid = $('.valid');
var currentCursorIndex = playBack.cursor.index('.valid');
if(currentCursorIndex < 0 || currentCursorIndex + 1 == $valid.length){
$valid.removeClass('cursor');
$valid.eq(0).addClass('cursor');
}else{
$valid.removeClass('cursor');
$valid.eq(currentCursorIndex+1).addClass('cursor');
}
upDate();
}
function decrementMonth(){
var currentCursorIndex = $('.cursor').index('.valid');
if(currentCursorIndex < 0 || currentCursorIndex == 0){
$('.valid').removeClass('cursor');
$('.valid').eq($('.valid').length - 1).addClass('cursor');
}else{
$('.valid').removeClass('cursor');
$('.valid').eq(currentCursorIndex-1).addClass('cursor');
}
upDate();
}
function play(){
circleLayer.setAnimate(true);
playBack.timeline.playing = true;
playBack.timeline.startAnimation();
}
function pause(){
playBack.timeline.playing = false;
setTimeout(function(){
circleLayer.setAnimate(false);
}, 1500);
}
function updatePath(){
path_geo = refugees.geo_data.path_geo;
for(var or_key in path_geo){
for(var asyl_key in path_geo[or_key]){
path_array = path_geo[or_key][asyl_key];
for(var i = 0; i < path_array.length; i++){
refugees.paths[or_key][asyl_key]["points"][i] = map.getProjection().fromLatLngToPoint(path_array[i]);
}
refugees.paths[or_key][asyl_key]["path"] = getPathThroughPoints(refugees.paths[or_key][asyl_key]["points"]);
}
}
}
Number.prototype.clamp = function(min, max) {
return Math.min(Math.max(this, min), max);
};
function convert_to_radius(amount){
amount = amount.clamp(0, drawBack.MAX_AMOUNT)
return .035*Math.sqrt(amount);
}
String.prototype.format = function () {
var args = [].slice.call(arguments);
return this.replace(/(\{\d+\})/g, function (a){
return args[+(a.substr(1,a.length-2))||0];
});
};
function convert_to_color(amount){
var color = (amount > 0) ?
{r: 50, g:150, b:50} : {r: 150, g:50, b:50};
if(amount == 0){
color = {r: 80, g:80, b:80}
}
return "rgba({0},{1},{2}, {3})".format(color.r, color.g, color.b, .3);
}
function drawPath(path, data){
//Drawing path
makePath(circleContext, path);
circleContext.lineWidth = .35;
circleContext.strokeStyle = convert_to_color(data);
circleContext.lineCap = "round";
circleContext.stroke();
}
function canvasResize(){
}
function glResize(){
console.log('resizeHandler');
var w = gl.canvas.width;
var h = gl.canvas.height;
gl.viewport(0, 0, w, h);
// matrix which maps pixel coordinates to WebGL coordinates
pixelsToWebGLMatrix.set([2/w, 0, 0, 0,
0, -2/h, 0, 0,
0, 0, 0, 0,
-1, 1, 0, 1]);
}
function translateMatrix(matrix, tx, ty) {
matrix[12] += matrix[0]*tx + matrix[4]*ty;
matrix[13] += matrix[1]*tx + matrix[5]*ty;
matrix[14] += matrix[2]*tx + matrix[6]*ty;
matrix[15] += matrix[3]*tx + matrix[7]*ty;
}
function scaleMatrix(matrix, scaleX, scaleY) {
matrix[0] *= scaleX;
matrix[1] *= scaleX;
matrix[2] *= scaleX;
matrix[3] *= scaleX;
matrix[4] *= scaleY;
matrix[5] *= scaleY;
matrix[6] *= scaleY;
matrix[7] *= scaleY;
}
function draw(transform) {
if (refugees.ready) {
gl.useProgram(program);
var pointSize = resolutionScale * 4 * Math.pow(20 / 4, (map.zoom - 3) / (10 - 3));
var sizeLoc = gl.getUniformLocation(program, 'uSize');
gl.uniform1f(sizeLoc, pointSize);
var totalTime = 60*60*24*15;
var sizeLoc = gl.getUniformLocation(program, 'uTotalTime');
gl.uniform1f(sizeLoc, totalTime);
var matrixLoc = gl.getUniformLocation(program, 'uMapMatrix');
gl.uniformMatrix4fv(matrixLoc, false, transform);
var epochLoc = gl.getUniformLocation(program, 'uEpoch');
gl.uniform1f(epochLoc, playBack.timeline.currentTime);
// var spanLoc = gl.getUniformLocation(program, 'uSpan');
// gl.uniform1f(spanLoc, playBack.timeline.span);
gl.bindBuffer(gl.ARRAY_BUFFER, refugees.arrayBuffer);
var attributeLoc = gl.getAttribLocation(program, 'aStartPoint');
gl.enableVertexAttribArray(attributeLoc);
gl.vertexAttribPointer(attributeLoc, 2, gl.FLOAT, false, 40, 0);
var attributeLoc = gl.getAttribLocation(program, 'aEndPoint');
gl.enableVertexAttribArray(attributeLoc);
gl.vertexAttribPointer(attributeLoc, 2, gl.FLOAT, false, 40, 8);
var attributeLoc = gl.getAttribLocation(program, 'aMidPoint');
gl.enableVertexAttribArray(attributeLoc);
gl.vertexAttribPointer(attributeLoc, 2, gl.FLOAT, false, 40, 16);
var attributeLoc = gl.getAttribLocation(program, 'aEpoch');
gl.enableVertexAttribArray(attributeLoc);
gl.vertexAttribPointer(attributeLoc, 1, gl.FLOAT, false, 40, 24);
var attributeLoc = gl.getAttribLocation(program, 'aEndTime');
gl.enableVertexAttribArray(attributeLoc);
gl.vertexAttribPointer(attributeLoc, 1, gl.FLOAT, false, 40, 28);
var attributeLoc = gl.getAttribLocation(program, 'aSpan');
gl.enableVertexAttribArray(attributeLoc);
gl.vertexAttribPointer(attributeLoc, 1, gl.FLOAT, false, 40, 32);
var attributeLoc = gl.getAttribLocation(program, 'aTimeOffset');
gl.enableVertexAttribArray(attributeLoc);
gl.vertexAttribPointer(attributeLoc, 1, gl.FLOAT, false, 40, 36);
// var attributeLoc = gl.getAttribLocation(program, 'aCoo');
// gl.enableVertexAttribArray(attributeLoc);
// gl.vertexAttribPointer(attributeLoc, 1, gl.FLOAT, false, 36, 28);
// var attributeLoc = gl.getAttribLocation(program, 'aCor');
// gl.enableVertexAttribArray(attributeLoc);
// gl.vertexAttribPointer(attributeLoc, 1, gl.FLOAT, false, 36, 32);
// var year = new Date(timeSlider.getCurrentTime()).getFullYear();
// var count;
// if (year < 2001) {
// year = 2001;
// }
// if (year != 2013) {
// count = refugees.pointIdx[year]['count'] + refugees.pointIdx[year+1]['count'];
// } else {
// count = refugees.pointIdx[year]['count'];
// }
// gl.drawArrays(gl.POINTS, refugees.pointIdx[year]['start'], count);
// //gl.drawArrays(gl.POINTS, 0, refugees.pointCount);
// }
gl.drawArrays(gl.POINTS, 0, refugees.pointCount);
}
}
function particleUpdate(){
if(refugees.ready){
gl.clear(gl.COLOR_BUFFER_BIT);
var mapProjection = map.getProjection();
mapMatrix.set(pixelsToWebGLMatrix);
var scale = resolutionScale*particleLayer.getMapScale();
scaleMatrix(mapMatrix, scale, scale);
var translation = particleLayer.getMapTranslation();
translateMatrix(mapMatrix, translation.x, translation.y);
draw(mapMatrix);
playBack.timeline.animate();
}
}
function circleUpdate() {
var mapProjection = map.getProjection()
var canvasWidth = circleLayer.canvas.width;
var canvasHeight = circleLayer.canvas.height;
circleContext.clearRect(0, 0, canvasWidth, canvasHeight);
circleContext.setTransform(1, 0, 0, 1, 0, 0);
var scale = (1 << map.zoom) * resolutionScale;
circleContext.scale(scale, scale);
var offset = mapProjection.fromLatLngToPoint(circleLayer.getTopLeft());
circleContext.translate(-offset.x, -offset.y);
origin_geo = refugees.geo_data.origin_geo;
asylum_geo = refugees.geo_data.asylum_geo;
circle_data = refugees.draw_data;
var month = refugees.currentDate.month;
var year = refugees.currentDate.year;
circleContext.lineWidth = drawBack.BASE_STROKE;
var origins = circle_data[year][month]['origin'];
var asylums = circle_data[year][month]['asylum'];
//origin
circleContext.fillStyle = drawBack.colors.origin.fill;
circleContext.strokeStyle = drawBack.colors.origin.stroke;
for(var i = 0; i < origins.length-1; i+=2){
var radius = drawBack.BASE_RADIUS;
var or_key = origins[i];
var currentAmount = origins[i+1]
var originPoint = mapProjection.fromLatLngToPoint(origin_geo[or_key]);
var prevAmount = refugees.prev_shown["origin"][or_key];
var interpolated_raw = (currentAmount == prevAmount) ?
currentAmount : prevAmount + Math.ceil((currentAmount - prevAmount)/drawBack.origin_interpolate);
radius += convert_to_radius(interpolated_raw);
refugees.prev_shown["origin"][or_key] = interpolated_raw;
radius = (radius < 0) ? .1 : radius;
//draws circle at origin country
circleContext.beginPath();
circleContext.arc(originPoint.x, originPoint.y,radius, 0, 2 * Math.PI, false);
circleContext.fill();
circleContext.stroke();
}
//asylum
circleContext.fillStyle = drawBack.colors.asylum.fill;
circleContext.strokeStyle = drawBack.colors.asylum.stroke;
for(var i = 0; i < asylums.length-1; i+=2){
var radius = drawBack.BASE_RADIUS;
var asyl_country = asylums[i];
var total = asylums[i+1];
var prevTotal = refugees.prev_shown["asylum"][asyl_country];
var interpolated_raw = (total == prevTotal) ?
total : prevTotal + Math.ceil((total - prevTotal)/drawBack.asylum_interpolate);
refugees.prev_shown["asylum"][asyl_country] = interpolated_raw;
radius += convert_to_radius(interpolated_raw);
radius = (radius < 0) ? .1 : radius;
var asylumPoint = mapProjection.fromLatLngToPoint(asylum_geo[asyl_country]);
circleContext.beginPath();
circleContext.arc(asylumPoint.x, asylumPoint.y,radius, 0, 2 * Math.PI, false);
circleContext.fill();
circleContext.stroke();
}
//deaths
var currentAmount = refugees.deaths[year][month] || 0;
var prevAmount = refugees.prev_shown["deaths"];
var interpolated_raw = (currentAmount == prevAmount) ?
currentAmount : prevAmount + Math.ceil((currentAmount - prevAmount)/drawBack.origin_interpolate);
refugees.prev_shown["deaths"] = interpolated_raw;
var deathsPoint = mapProjection.fromLatLngToPoint(refugees.deaths.location);
var radius = convert_to_radius(interpolated_raw);
circleContext.beginPath();
circleContext.arc(deathsPoint.x, deathsPoint.y,radius, 0, 2 * Math.PI, false);
circleContext.fillStyle = drawBack.colors.deaths.fill;
circleContext.fill();
circleContext.strokeStyle = drawBack.colors.deaths.stroke;
circleContext.stroke();
}
function getClosestElement(testPoint, threshold){
var closest = {name:"None Found", type:"", latlon: null};
var closestDist = Number.MAX_VALUE;
for(var or_key in refugees.geo_data.origin_geo){
var latlon = refugees.geo_data.origin_geo[or_key];
var dist = getDistance(latlon, testPoint);
if(dist < threshold){
closestDist = dist;
return {name:or_key, type:"origin", latlon:latlon};
}
}
for(var asyl_key in refugees.geo_data.asylum_geo){
var latlon = refugees.geo_data.asylum_geo[asyl_key];
var dist = getDistance(latlon, testPoint);
if(dist < threshold){
return {name:asyl_key, type:"asylum", latlon:latlon};
}
}
var latlon = refugees.deaths.location;
var dist = getDistance(latlon, testPoint);
if(dist < threshold){
return {name:"deaths", type:"deaths", latlon:latlon};
}
return {name:"None Found", data:{}, latlon: null};
}
function processMapHover(event){
var closest = getClosestElement(event.latLng, 75000);
drawBack.lasthover = drawBack.hover
if(closest.latlon != null){
if(drawBack.hover == {} || drawBack.hover.name != closest.name){
drawBack.hover = closest;
}
}else{
drawBack.hover = {};
}
updateHoverBox();
}
//from https://stackoverflow.com/questions/2901102/how-to-print-a-number-with-commas-as-thousands-separators-in-javascript
function numberWithCommas(x) {
return x.toString().replace(/\B(?=(\d{3})+(?!\d))/g, ",");
}
function updateHoverBox(){
var hoverHTML = [];
hoverHTML.push('<div id="hoverbox">');
if(!$.isEmptyObject(drawBack.hover)){
var year = refugees.currentDate.year || 2014;
var month = refugees.currentDate.month || 1;
var name = drawBack.hover.name;
switch(drawBack.hover.type){
case "asylum":
hoverHTML.push('<p><strong>',name,':</strong> asylum country</p>');
var total = 0
var data = refugees.raw_data.raw[name][year][month];
for(var or_key in data){
var amount = data[or_key];
hoverHTML.push('<p>From <strong>',or_key,'</strong>: ',numberWithCommas(amount),'</p>');
total += amount;
}
hoverHTML.push('<p><strong>Total:</strong> ',numberWithCommas(total),'</p>');
break;
case "origin":
hoverHTML.push('<p><strong>',name,':</strong> origin country</p>');
var total = 0;
for(var asyl_key in refugees.raw_data.raw){
var data = refugees.raw_data.raw[asyl_key][year][month];
if(name in data){
var amount = data[name];
hoverHTML.push('<p>To <strong>',asyl_key,'</strong>: ',numberWithCommas(amount),'</p>');
total += amount;
}
}
hoverHTML.push('<p><strong>Total:</strong> ',numberWithCommas(total),'</p>');
break;
case "deaths":
hoverHTML.push('<p><strong>Deaths:</strong> ',numberWithCommas(refugees.deaths[year][month]),'</p>');
break;
default:
console.log(drawBack.hover);
}
}else{
if(drawBack.infowindow){
drawBack.infowindow.close()
}
drawBack.infowindow = null;
return;
}
var dateString = '';
switch(month){
case 1:
dateString = "January ";
break;
case 2:
dateString = "February ";
break;
case 3:
dateString = "March ";
break;
case 4:
dateString = "April ";
break;
case 5:
dateString = "May ";
break;
case 6:
dateString = "June ";
break;
case 7:
dateString = "July ";
break;
case 8:
dateString = "August ";
break;
case 9:
dateString = "September ";
break;
case 10:
dateString = "October ";
break;
case 11:
dateString = "November ";
break;
case 12:
dateString = "December ";
break;
}
hoverHTML.push('<p>',dateString,year,'</p>')
hoverHTML.push('</div>');
if(drawBack.infowindow){
drawBack.infowindow.setContent(hoverHTML.join(''));
}else{
drawBack.infowindow = new google.maps.InfoWindow({
content: hoverHTML.join(''),
position: drawBack.hover.latlon
});
drawBack.infowindow.open(map);
}
}
function initMap(){
// initialize the map
var mapOptions = {
zoom: 4,
minZoom: 3,
center: new google.maps.LatLng(34.17497, 22.09833),
mapTypeId: google.maps.MapTypeId.TERRAIN,
keyboardShortcuts: false,
zoomControl: true,
zoomControlOptions: {
position: google.maps.ControlPosition.RIGHT_BOTTOM
},
scaleControl: true,
scaleControlOptions: {
position: google.maps.ControlPosition.RIGHT_BOTTOM
},
streetViewControl: false,
mapTypeControl: false,
styles: [
{
"featureType": "all",
"elementType": "labels.text.fill",
"stylers": [
{
"saturation": 36
},
{
"color": "#999999"
},
{
"lightness": 40
}
]
},
{
"featureType": "all",
"elementType": "labels.text.stroke",
"stylers": [
{
"visibility": "on"
},
{
"color": "#000000"
},
{
"lightness": 16
}
]
},
{
"featureType": "all",
"elementType": "labels.icon",
"stylers": [
{
"visibility": "off"
}
]
},
{
"featureType": "administrative",
"elementType": "geometry.fill",
"stylers": [
{
"color": "#000000"
},
{
"lightness": 15
}
]
},
{
"featureType": "administrative",
"elementType": "geometry.stroke",
"stylers": [
{
"color": "#000000"
},
{
"lightness": 17
},
{
"weight": 1.2
}
]
},
{
"featureType": "landscape",
"elementType": "geometry",
"stylers": [
{
"color": "#000000"
},
{
"lightness": 15
}
]
},
{
"featureType": "poi",
"elementType": "geometry",
"stylers": [
{
"color": "#000000"
},
{
"lightness": 16
}
]
},
{
"featureType": "road.highway",
"elementType": "geometry.fill",
"stylers": [
{
"color": "#000000"
},
{
"lightness": 17
}
]
},
{
"featureType": "road.highway",
"elementType": "geometry.stroke",
"stylers": [
{
"color": "#000000"
},
{
"lightness": 29
},
{
"weight": 0.2
}
]
},
{
"featureType": "road.arterial",
"elementType": "geometry",
"stylers": [
{
"color": "#000000"
},
{
"lightness": 16
}
]
},
{
"featureType": "road.local",
"elementType": "geometry",
"stylers": [
{
"color": "#000000"
},
{
"lightness": 16
}
]
},
{
"featureType": "transit",
"elementType": "geometry",
"stylers": [
{
"color": "#000000"
},
{
"lightness": 19
}
]
},
{
"featureType": "water",
"elementType": "geometry",
"stylers": [
{
"color":"#0b2929"
},
{
"lightness": 17
}
]
}
]
};
var mapDiv = document.getElementById('map-div');
return new google.maps.Map(mapDiv, mapOptions);
}
function initCanvasLayer(updateHandler, animated, resize){
// initialize the canvasLayer
var canvasLayerOptions = {
map: map,
resizeHandler: resize,
animate: animated,
updateHandler: updateHandler,
resolutionScale: resolutionScale
};
return new CanvasLayer(canvasLayerOptions);
}
function load(url, responseType) {
return new Promise(function(resolve, reject){
var xhr = new XMLHttpRequest();
xhr.open('GET', url);
xhr.responseType = responseType;
xhr.onload = function() {
if(xhr.status == 200){
resolve(this.response);
}else{
reject(Error(xhr.statusText));
}
};
// Handle network errors
xhr.onerror = function() {
reject(Error("Network Error"));
};
xhr.send();
});
}
function geo_handler(json_data){
prev_shown_origin = {};
prev_shown_asylum = {};
for(var key in json_data.origin_geo){
var lat_long = json_data.origin_geo[key];
json_data.origin_geo[key] = new google.maps.LatLng(lat_long.lat, lat_long.lon);
prev_shown_origin[key] = 0;
}
for(var key in json_data.asylum_geo){
var lat_long = json_data.asylum_geo[key];
json_data.asylum_geo[key] = new google.maps.LatLng(lat_long.lat, lat_long.lon);
prev_shown_asylum[key] = 0;
}
var paths = {};
for(var or_key in json_data.path_geo){
paths[or_key] = {};
var or_data = json_data.path_geo[or_key];
for (var asyl_key in or_data){
paths[or_key][asyl_key] = {};
paths[or_key][asyl_key]["points"] = [];
paths[or_key][asyl_key]["path"] = null;
path_array = or_data[asyl_key];
for(var i = 0; i < path_array.length; i++){
var googleLatLong = new google.maps.LatLng(path_array[i].lat, path_array[i].lon);