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index.html
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<!DOCTYPE html>
<html>
<head>
<meta charset='utf-8' />
<title>Mapbox Storytelling</title>
<meta name='viewport' content='initial-scale=1,maximum-scale=1,user-scalable=no' />
<script src='https://api.tiles.mapbox.com/mapbox-gl-js/v2.0.0/mapbox-gl.js'></script>
<link href='https://api.tiles.mapbox.com/mapbox-gl-js/v2.0.0/mapbox-gl.css' rel='stylesheet' />
<script src="https://unpkg.com/[email protected]/intersection-observer.js"></script>
<script src="https://unpkg.com/scrollama"></script>
<style>
body {
margin:0;
padding:0;
font-family: sans-serif;
}
a, a:hover, a:visited {
color: #0071bc;
}
#map {
top:0;
height: 100vh;
width:100vw;
position: fixed;
}
#header {
margin: auto;
width: 100%;
text-transform: uppercase;
position: relative;
z-index: 5;
}
#header h1, #header h2, #header p {
margin: 0;
padding: 2vh 2vw;
text-align: center;
}
#footer {
width: 100%;
min-height: 5vh;
padding-top: 2vh;
padding-bottom: 2vh;
text-align: center;
line-height: 25px;
font-size: 13px;
position: relative;
z-index: 5;
}
#features {
padding-top: 10vh;
padding-bottom: 10vh;
}
.hidden {
visibility: hidden;
}
.centered {
width: 50vw;
margin: 0 auto;
}
.lefty {
width: 50vw;
margin-left: 5vw;
}
.righty {
width: 50vw;
margin-left: 50vw;
}
.fully {
width: 100%;
margin: auto;
}
.light {
color: #444;
background-color: #fafafa;
}
.dark {
color: #fafafa;
background-color: #444;
}
.step {
padding-bottom: 50vh;
/* margin-bottom: 10vh; */
opacity: 0.10;
}
.step.active {
opacity: 0.9;
}
.step div {
padding: 25px 25px;
line-height: 25px;
font-size: 10px;
}
.step img {
width: 100%;
}
@media (max-width: 1000px) {
.centered, .lefty, .righty, .fully {
width: 100vw;
margin: 0 auto;
}
}
/* Fix issue on mobile browser where scroll breaks */
.mapboxgl-canvas-container.mapboxgl-touch-zoom-rotate.mapboxgl-touch-drag-pan,
.mapboxgl-canvas-container.mapboxgl-touch-zoom-rotate.mapboxgl-touch-drag-pan .mapboxgl-canvas {
touch-action: unset;
}
</style>
</head>
<body>
<div id="map"></div>
<div id="story"></div>
<script src="./config.js"></script>
<script>
var layerTypes = {
'fill': ['fill-opacity'],
'line': ['line-opacity'],
'circle': ['circle-opacity', 'circle-stroke-opacity'],
'symbol': ['icon-opacity', 'text-opacity'],
'raster': ['raster-opacity'],
'fill-extrusion': ['fill-extrusion-opacity'],
'heatmap': ['heatmap-opacity']
}
var alignments = {
'left': 'lefty',
'center': 'centered',
'right': 'righty',
'full': 'fully'
}
function getLayerPaintType(layer) {
var layerType = map.getLayer(layer).type;
return layerTypes[layerType];
}
function setLayerOpacity(layer) {
var paintProps = getLayerPaintType(layer.layer);
paintProps.forEach(function(prop) {
var options = {};
if (layer.duration) {
var transitionProp = prop + "-transition";
options = { "duration": layer.duration };
map.setPaintProperty(layer.layer, transitionProp, options);
}
map.setPaintProperty(layer.layer, prop, layer.opacity, options);
});
}
var story = document.getElementById('story');
var features = document.createElement('div');
features.setAttribute('id', 'features');
var header = document.createElement('div');
if (config.title) {
var titleText = document.createElement('h1');
titleText.innerText = config.title;
header.appendChild(titleText);
}
if (config.subtitle) {
var subtitleText = document.createElement('h2');
subtitleText.innerText = config.subtitle;
header.appendChild(subtitleText);
}
if (config.byline) {
var bylineText = document.createElement('p');
bylineText.innerText = config.byline;
header.appendChild(bylineText);
}
if (header.innerText.length > 0) {
header.classList.add(config.theme);
header.setAttribute('id', 'header');
story.appendChild(header);
}
config.chapters.forEach((record, idx) => {
var container = document.createElement('div');
var chapter = document.createElement('div');
if (record.title) {
var title = document.createElement('h3');
title.innerText = record.title;
chapter.appendChild(title);
}
if (record.image) {
var image = new Image();
image.src = record.image;
chapter.appendChild(image);
}
if (record.description) {
var story = document.createElement('p');
story.innerHTML = record.description;
chapter.appendChild(story);
}
container.setAttribute('id', record.id);
container.classList.add('step');
if (idx === 0) {
container.classList.add('active');
}
chapter.classList.add(config.theme);
container.appendChild(chapter);
container.classList.add(alignments[record.alignment] || 'centered');
if (record.hidden) {
container.classList.add('hidden');
}
features.appendChild(container);
});
story.appendChild(features);
var footer = document.createElement('div');
if (config.footer) {
var footerText = document.createElement('p');
footerText.innerHTML = config.footer;
footer.appendChild(footerText);
}
if (footer.innerText.length > 0) {
footer.classList.add(config.theme);
footer.setAttribute('id', 'footer');
story.appendChild(footer);
}
mapboxgl.accessToken = config.accessToken;
const transformRequest = (url) => {
const hasQuery = url.indexOf("?") !== -1;
const suffix = hasQuery ? "&pluginName=scrollytellingV2" : "?pluginName=scrollytellingV2";
return {
url: url + suffix
}
}
var map = new mapboxgl.Map({
container: 'map',
style: config.style,
center: config.chapters[0].location.center,
zoom: config.chapters[0].location.zoom,
bearing: config.chapters[0].location.bearing,
pitch: config.chapters[0].location.pitch,
interactive: false,
transformRequest: transformRequest
});
if (config.showMarkers) {
var marker = new mapboxgl.Marker({ color: config.markerColor });
marker.setLngLat(config.chapters[0].location.center).addTo(map);
}
// instantiate the scrollama
var scroller = scrollama();
map.on("load", function() {
if (config.use3dTerrain) {
map.addSource('mapbox-dem', {
'type': 'raster-dem',
'url': 'mapbox://mapbox.mapbox-terrain-dem-v1',
'tileSize': 512,
'maxzoom': 14
});
// add the DEM source as a terrain layer with exaggerated height
map.setTerrain({ 'source': 'mapbox-dem', 'exaggeration': 1.5 });
// add a sky layer that will show when the map is highly pitched
map.addLayer({
'id': 'sky',
'type': 'sky',
'paint': {
'sky-type': 'atmosphere',
'sky-atmosphere-sun': [0.0, 0.0],
'sky-atmosphere-sun-intensity': 15
}
});
};
// setup the instance, pass callback functions
scroller
.setup({
step: '.step',
offset: 0.5,
progress: true
})
.onStepEnter(response => {
var chapter = config.chapters.find(chap => chap.id === response.element.id);
response.element.classList.add('active');
map[chapter.mapAnimation || 'flyTo'](chapter.location);
if (config.showMarkers) {
marker.setLngLat(chapter.location.center);
}
if (chapter.onChapterEnter.length > 0) {
chapter.onChapterEnter.forEach(setLayerOpacity);
}
if (chapter.callback) {
window[chapter.callback]();
}
if (chapter.rotateAnimation) {
map.once('moveend', function() {
const rotateNumber = map.getBearing();
map.rotateTo(rotateNumber + 90, {
duration: 24000, easing: function (t) {
return t;
}
});
});
}
})
.onStepExit(response => {
var chapter = config.chapters.find(chap => chap.id === response.element.id);
response.element.classList.remove('active');
if (chapter.onChapterExit.length > 0) {
chapter.onChapterExit.forEach(setLayerOpacity);
}
});
});
// setup resize event
window.addEventListener('resize', scroller.resize);
</script>
</body>
</html>