mapping_movements/similarities_map.html

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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Mapping Movements - Alternative map of movements</title>
<style>
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:root{
--marker-size: 20px;
}
body {
background: linear-gradient(#e66465, #9198e5);
height: 100vh;
color: white;
font-family: sans-serif;
}
.about {
position: absolute;
bottom: 20px;
right: 20px;
width: 400px;
z-index: 10;
}
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#map {
position: fixed;
top: 0;
left: 0;
right: 0;
bottom: 0;
}
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.initiative::before {
position: absolute;
top: 0;
left: 0;
width: var(--marker-size);
height: var(--marker-size);
/* background: black; */
border: solid 2px black;
/* border-style: dotted; */
border-radius: 0 7px 0 7px;
content: ' ';
}
.initiative.selected::before, .initiative:hover::before {
background: black;
}
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.initiative {
position: absolute;
top: calc(50% - 50px);
left: 0;
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/* height: 100px;
width: 100px; */
/* overflow: hidden; */
height: var(--marker-size);
width: var(--marker-size);
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transition: left 2s, top 2s;
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cursor: pointer;
}
.initiative h2 {
position: absolute;
width: 250px;
font-size: 100%;
margin: 0;
/* opacity: .1; */
display: none;
top: calc(var(--marker-size) - 5px);
left: calc(var(--marker-size) + 10px);
}
.initiative .organisation {
position: absolute;
width: 250px;
/* opacity: .1; */
display: none;
bottom: calc(var(--marker-size) - 5px);
left: calc(var(--marker-size) + 10px);
}
.initiative:hover .organisation,
.initiative:hover h2,
.initiative.selected .organisation,
.initiative.selected h2 {
opacity: 1;
display: block;
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}
</style>
<script>
class Map {
constructor(mapEl) {
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this.margin = 60;
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this.mapEl = mapEl;
this.initiatives = []
this.similarities = {}
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this.offsets = []
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}
_load() {
return fetch("similarities.json")
.then((response) => {
if (!response.ok) {
throw new Error(`HTTP error! Status: ${response.status}`);
}
return response.json();
})
.then((response) => {
this.initiatives = response.initiatives
this.similarities = response.similarities
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this.offsets = response.pca_1
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});
}
init() {
this._load()
.then(() => {
this._createElements()
this.selectInitiative(0)
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window.addEventListener('resize', (e) => this.selectInitiative(this.selectedIndex))
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});
}
_createElements() {
this.mapEl.innerHMTL = "";
this.initiatives.forEach((initiative, initiative_idx) => {
const el = document.createElement('div')
el.classList.add('initiative')
el.innerHTML = `
<h2>${initiative.Title}</h2>
<div class='organisation'>${initiative.Organisation}</div>
`;
el.addEventListener('click', (e) => this.selectInitiative(initiative_idx));
initiative['el'] = el;
this.mapEl.appendChild(el);
})
}
selectInitiative(nr) {
this.selectedIndex = nr;
this.selectedInitiative = this.initiatives[nr];
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const radius = Math.min(window.innerWidth, window.innerHeight / 2) - 2 * this.margin;
const centerY = window.innerHeight / 2 - this.margin;
const centerX = this.margin;
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this.similarities[this.selectedIndex].forEach((similarity, initiative_idx) => {
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const offset = this.offsets[initiative_idx] // initiative_idx / (this.initiatives.length - 1);
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const el = this.initiatives[initiative_idx]['el'];
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const r = (similarity - 1) * radius;
const x = Math.cos(offset * Math.PI + Math.PI * .5) * r
const y = Math.sin(offset * Math.PI + Math.PI * .5) * r
el.style.left = `${centerX + x}px`;
el.style.top = `${centerY + y}px`;
if (this.selectedIndex == initiative_idx) {
el.classList.add('selected');
} else {
el.classList.remove('selected')
}
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});
}
}
var map;
document.addEventListener("DOMContentLoaded", (event) => {
map = new Map(document.getElementById('map'));
map.init()
});
</script>
</head>
<body>
<div class="about">This map was created by Ruben van de Ven for the <em>Mapping Movements</em> pressure cooker,
organised by Creative Coding Utrecht for the Copernicus Institute of the Utrecht University.</div>
<div id="map"></div>
</body>
</html>