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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 {
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--marker-size: 20px;
}
body {
background: linear-gradient(#e66465, #9198e5);
height: 100vh;
color: white;
font-family: sans-serif;
}
.about {
position: absolute;
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top: 20px;
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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: ' ';
}
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.initiative.selected::before,
.initiative:hover::before {
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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;
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transform: translate(calc(var(--marker-size) * -.5), calc(var(--marker-size) * -.5));
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}
.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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}
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svg {
position: fixed;
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top: 20px;
left: 20px;
/* right: 20px; */
height: calc(100vh - 2 * 20px - var(--marker-size));
width: calc(100vw - 2 * 20px);
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z-index: -1;
}
svg line {
stroke: rgba(255, 255, 255, .5);
stroke-width: 0.3px;
stroke-dasharray: 100 100;
stroke-dashoffset: 0;
transition: stroke-dashoffset 2s, opacity 2s;
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opacity: 1 ;
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}
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< / style >
< script >
class Map {
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constructor(mapEl, lineEl) {
this.margin = 20;
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this.mapEl = mapEl;
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this.lineEl = lineEl;
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this.initiatives = []
this.similarities = {}
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this.offsets = []
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this.offsetsEls = {}
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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);
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// < line x1 = "0" y1 = "0" x2 = "200" y2 = "200" style = "stroke:rgb(255,0,0);stroke-width:2" / >
const line = document.createElementNS("http://www.w3.org/2000/svg", 'line')
line.setAttributeNS(null, "x1", 0)
line.setAttributeNS(null, "y1", 0)
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line.setAttributeNS(null, "x2", Math.cos(this.offsets[initiative_idx] * Math.PI - Math.PI ) * 100)
line.setAttributeNS(null, "y2", Math.sin(this.offsets[initiative_idx] * Math.PI - Math.PI ) * 100)
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this.lineEl.appendChild(line);
this.offsetsEls[initiative_idx] = line;
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})
}
selectInitiative(nr) {
this.selectedIndex = nr;
this.selectedInitiative = this.initiatives[nr];
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const radius = Math.min(window.innerWidth / 2, window.innerHeight) - 1 * this.margin;
const centerX = window.innerWidth / 2;
const centerY = window.innerHeight - 2 * 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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// similarity=0
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const r = (similarity - 1) * radius;
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const x = Math.cos(offset * Math.PI) * r
const y = Math.sin(offset * Math.PI) * r
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if (this.selectedIndex == initiative_idx) {
el.classList.add('selected');
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el.style.top = `${centerY}px`;
el.style.left = `${centerX}px`;
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} else {
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el.style.top = `${centerY + y}px`;
el.style.left = `${centerX + x}px`;
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el.classList.remove('selected')
}
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this.offsetsEls[initiative_idx].style.strokeDashoffset = similarity * 100;
this.offsetsEls[initiative_idx].style.opacity = similarity;
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});
}
}
var map;
document.addEventListener("DOMContentLoaded", (event) => {
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map = new Map(document.getElementById('map'), document.getElementById('lines'));
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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,
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organised by Creative Coding Utrecht for the Copernicus Institute of the Utrecht University. More information about the rationale is in < a href = "https://git.rubenvandeven.com/r/mapping_movements/" > the repository< / a > .< / div >
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< div id = "map" > < / div >
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< svg preserveAspectRatio = "xMidYMax meet" viewBox = "-100,-100,200,100" id = "lines" > < / svg >
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< / body >
< / html >
