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probabilities-map.html
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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>Create a time slider</title>
<meta name="viewport" content="initial-scale=1,maximum-scale=1,user-scalable=no" />
<script src="https://api.mapbox.com/mapbox-gl-js/v1.12.0/mapbox-gl.js"></script>
<link href="https://api.mapbox.com/mapbox-gl-js/v1.12.0/mapbox-gl.css" rel="stylesheet" />
<style>
body { margin: 0; padding: 0; }
#map { position: absolute; top: 0; bottom: 0; width: 100%; }
</style>
</head>
<body>
<style>
.map-overlay {
font: 12px/20px 'Helvetica Neue', Arial, Helvetica, sans-serif;
position: absolute;
width: 25%;
right: 10px;
bottom: 10px;
/*top: 0;
left: 0;*/
padding: 10px;
}
.map-overlay .map-overlay-inner {
background-color: #fff;
/*box-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);*/
border-radius: 3px;
padding: 10px;
margin-bottom: 10px;
}
.map-overlay h2 {
line-height: 24px;
display: block;
margin: 0 0 10px;
}
.map-overlay .legend .bar {
height: 10px;
width: 100%;
background: linear-gradient(to right, #440154FF, #3B528BFF, #21908CFF, #5DC863FF, #FDE725FF);
}
.map-overlay input {
background-color: transparent;
display: inline-block;
width: 100%;
position: relative;
margin: 0;
cursor: ew-resize;
}
</style>
<div id="map"></div>
<div class="map-overlay top">
<div class="map-overlay-inner">
<h2>Seeding Probability</h2>
<div id='pd'><br>
<p>Hover over a county!</p>
</div>
Day: <label id="day"></label>
<input id="slider" type="range" min="1" max="111" step="1" value="0" />
<!--button id="play-button">Play</button-->
</div>
<div class="map-overlay-inner">
<div id="legend" class="legend">
<div class="bar"></div>
<div><span style="text-align:left;"> 0
<span style="float:right;"> 1
</span></span><br><center>Probability</center></div>
</div>
</div>
</div>
<script src="//d3js.org/d3.v3.min.js" charset="utf-8"></script>
<script>
mapboxgl.accessToken = 'pk.eyJ1IjoiZ3JpZ2hpIiwiYSI6ImNrZjJ2anZ3cDI1Y3Yyc3A5aHE1cnF1bjQifQ.ZXsOWkIVBsLb6s7r4fHztg';
var map = new mapboxgl.Map({
container: 'map',
style: 'mapbox://styles/grighi/ckh254qp11pcj19mpqkui0g18',
//style option: light-v10
//style option: streets-v11
center: [-92.6, 40],
zoom: 2,
minZoom: 2
});
/*
function filterSt(state) {
var filters = ['==', 'STATE', state];
map.setFilter('original', filters);
// Set the label to the day
document.getElementById('day').textContent = state;
}
*/
map.on('load', function () {
/*
d3.json(
'local-counties-small.geojson',
function (err, data) {
if (err) throw err;
*/
//initialize map on day 1
var day = 1;
//set Day: label to 1
document.getElementById('day').textContent = day;
//prepare color scale
function makeColorScale(d) {
return([
'interpolate',
['linear'],
//['get', String(d), ['at', 0, ['get', 'p']]],
['get', 'p' + String(d)],
0, '#440154',
0.04, '#3B528B',
0.08, '#21908C',
0.25, '#5DC863',
0.4, '#FDE725',
1, '#696969'
])};
/*
map.addSource('county-data', {
type: 'geojson',
data: data
});
map.addLayer({
'id': 'original',
'type': 'fill',
'source': 'county-data',
'paint': {
'fill-opacity': 0.3,
'fill-color': makeColorScale(day)
}
}, //'waterway-label' // FOR STYLE light-v10: ensures polygons are rendered above waterway-labels
);
*/
var clicked = false;
var clickedCounty = null;
map.on('click', function(e) {
if (!clicked) {
clicked = true;
var county = map.queryRenderedFeatures(e.point, {
layers: ['original']
});
clickedCounty = county;
if (county.length > 0) {
document.getElementById('pd').innerHTML =
'<h3><strong>' +
county[0].properties.lsad + '</strong></h3>' +
'<p>Estimated probability of having a case by the next day: ' +
county[0].properties['p'+String(day)] + '</p>' +
'<p>True date of first case: ' +
county[0].properties['First_Inf_Date'] + '</p>';
} else {
document.getElementById('pd').innerHTML = '<br><p>Hover over a county!</p>';
clicked = false;
clickedCounty = null;
}
} else {
clicked = false;
clickedCounty = null;
};
});
//update overlay box when hovering over a county
map.on('mousemove', function(e) {
if (!clicked) {
var county = map.queryRenderedFeatures(e.point, {
layers: ['original']
});
if (county.length > 0) {
document.getElementById('pd').innerHTML =
'<h3><strong>' +
county[0].properties.lsad + '</strong></h3>' +
'<p>Estimated probability of having a case by the next day: ' +
county[0].properties['p'+String(day)] + '</p>' +
'<p>True date of first case: ' +
county[0].properties['First_Inf_Date'] + '</p>';
} else {
document.getElementById('pd').innerHTML = '<br><p>Hover over a county!</p>';
}};
});
//update map according to slider position
document.getElementById('slider')
.addEventListener('input', function (e) {
day = parseInt(e.target.value, 10);
map.setPaintProperty('original', 'fill-color', makeColorScale(day));
document.getElementById('day').textContent = day;
if(clickedCounty) {
if (clickedCounty.length > 0) {
document.getElementById('pd').innerHTML =
'<h3><strong>' +
clickedCounty[0].properties.lsad + '</strong></h3>' +
'<p>Estimated probability of having a case by the next day: ' +
clickedCounty[0].properties['p'+String(day)] + '</p>' +
'<p>True date of first case: ' +
clickedCounty[0].properties['First_Inf_Date'] + '</p>';
};
}});
// });
/*
//wish list: move slider with shift+scroll
*/
/*
//code to potentially add a play button, not working
var moving = false;
var currentValue = 0;
var targetValue = width;
console.log(targetValue);
var slider = d3.select("#slider")
.append("svg")
.attr("width", width + margin.left + margin.right)
.attr("height", height + margin.top + margin.bottom)
.attr("transform", "translate(" + 0 + "," + height + ")");
var playButton = d3.select("#play-button");
var x = d3.scaleLinear()//建立映射关系
.domain([0, 111])
.range([0, targetValue])
.clamp(true);
slider.append("line")
.attr("class", "track")
.attr("x1", x.range()[0])
.attr("x2", x.range()[1])
.select(function () { return this.parentNode.appendChild(this.cloneNode(true)); })
.attr("class", "track-inset")
.select(function () { return this.parentNode.appendChild(this.cloneNode(true)); })
.attr("class", "track-overlay")
.call(d3.drag()
.on("start.interrupt", function () { slider.interrupt(); })
.on("start drag", function () {
currentValue = d3.event.x;
console.log(currentValue)
update(x.invert(currentValue));
})
);
slider.insert("g", ".track-overlay")
.attr("class", "ticks")
.attr("transform", "translate(0," + 18 + ")")
.selectAll("text")
.data(x.ticks(10))
.enter()
.append("text")
.attr("x", x)
.attr("y", 10)
.attr("text-anchor", "middle")
.text(function (d) {
return (d + 1);
});
var handle = slider.insert("circle", ".track-overlay")
.attr("class", "handle")
.attr("r", 9);
var labels = slider.append("g").append("text")
.attr("class", "labels")
.attr("text-anchor", "middle")
.text('1')
.attr("transform", "translate(0," + (-15) + ")")
.style("fill", "#4F442B")
playButton
.on("click", function () {
var button = d3.select(this);
if (button.text() == "Pause") {
moving = false;
clearInterval(timer);
// timer = 0;
button.text("Play");
} else {
moving = true;
timer = setInterval(step, 1000);//调用interval周期函数
button.text("Pause");
}
console.log("Slider moving: " + moving);//判定是否在运动
})
function step() {
update(x.invert(currentValue));
currentValue = currentValue + (targetValue / (111));
if (currentValue > targetValue) {
moving = false;
currentValue = 0;
clearInterval(timer);
// timer = 0;
playButton.text("Play");
// console.log("Slider moving: " + moving);
}
}
function update(day) {
var day = parseInt(day, 10);
console.log(day)
handle.attr("cx", x(day));
labels
.attr("x", x(day))
.text(day);
map.setPaintProperty('original', 'fill-color', makeColorScale(day));
}
*/
});
map.getCanvas().style.cursor = 'default';
//map.fitBounds(
// [[-170, 50],
// [ -40, 20]]);
</script>
<script type="text/javascript" src="js/iframeResizer.contentWindow.min.js"></script>
</body>
</html>