Refactoring
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1 changed files with 128 additions and 166 deletions
294
www/graph.js
294
www/graph.js
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@ -10,11 +10,16 @@ const CONFIG = {
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'countries': ['Austria', 'Italy', 'Belgium', 'Latvia', 'Bulgaria', 'Lithuania', 'Croatia', 'Luxembourg', 'Cyprus', 'Malta', 'Czechia', 'Netherlands', 'Denmark', 'Poland', 'Estonia ', 'Portugal', 'Finland ', 'Romania', 'France', 'Slovakia', 'Germany', 'Slovenia', 'Greece', 'Spain', 'Hungary', 'Sweden', 'Ireland'],
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'eu': {
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'lonMin': -10,
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'lonMax': 35
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'lonMax': 35,
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'center': [11, 47],
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}
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};
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// thanks to https://bl.ocks.org/denisemauldin/cdd667cbaf7b45d600a634c8ae32fae5
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var graph, store;
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function getSizeForNode(node) {
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// if (node.hasOwnProperty('https://schema.org/thumbnailUrl')) return nodeSize;
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// if (weights[node['@id']]) return nodeSize * weights[node['@id']];
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@ -119,10 +124,57 @@ function getUrl(obj) {
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let width = window.innerWidth;
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let height = window.innerHeight;
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const svg = d3.select("svg")
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// SET UP MAP:
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const projection = d3.geoHill()
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.rotate([-12, 0, 0])
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// .translate([width / 2, height * 1.5])
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// .scale(height * 1.5);
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const proj = d3.geoPath().projection(projection);
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const graticule = d3.geoGraticule10();
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let euCenter;
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const container = svg.append("g").attr("id", "container");
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// container.append("circle").attr("cx", euCenter[0]).attr("cy", euCenter[1]).attr("r", 500).attr("fill","red")
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const g_countries = container.append("g").attr("id", "countries");
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const g_borders = container.append("g").attr("id", "borders");
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const g_graticule = container.append("g")
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.append('path')
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.attr("class", "graticule")
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.attr("fill", "none")
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.attr("stroke-width", "!px")
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.attr("stroke", (n) => {
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return "lightgray";
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});
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;
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function sizeWindow() {
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width = window.innerWidth;
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height = window.innerHeight;
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svg
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.attr("viewBox", [0, 0, width, height])
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.attr("width", width)
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.attr("height", height);
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projection
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.translate([width / 2, height * 1.5])
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.scale(height * 1.5);
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g_graticule.attr('d', proj(graticule))
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euCenter = projection(CONFIG.eu.center);
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// update();
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}
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sizeWindow()
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window.addEventListener('resize', sizeWindow);
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// REQUEST ATLAS & GRAPH
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const req_data = new Request(CONFIG.dataUrl, { method: 'GET' });
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const req_world = new Request('https://cdn.jsdelivr.net/npm/world-atlas@2/countries-110m.json', { method: 'GET' });
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Promise.all([fetch(req_data), fetch(req_world)])
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.then(([res_data, res_world]) => {
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return Promise.all([res_data.json(), res_world.json()]);
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@ -133,130 +185,80 @@ Promise.all([fetch(req_data), fetch(req_world)])
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console.error(error);
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});
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;
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// fetch(request)
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// .then(response => {
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// if (response.status === 200) {
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// return response.json();
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// } else {
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// throw new Error('Something went wrong on api server!');
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// }
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// })
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// .then(data => {
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// buildGraph(data);
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// }).catch(error => {
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// console.error(error);
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// });
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let linkCounts = [];
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const simulation = d3.forceSimulation()
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.force("link", d3.forceLink()
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.id(d => d['@id'])
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.iterations(2) // increase to make more rigid
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.distance((l) => {
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// if (getCategories(l.source).indexOf('City') || getCategories(l.target).indexOf('City')) {
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// // if(l.source.lat || l.target.lat) {
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// return 2;
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// }
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return 10;
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})
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.strength((l) => {
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if (linkCounts.length < 1) {
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// replicate from d3-force/src/link.js so we have access to this in our own strength function
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linkCounts = new Array(store.nodes.length)
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for (let i = 0; i < store.links.length; ++i) {
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let link = store.links[i];
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linkCounts[link.source.index] = (linkCounts[link.source.index] || 0) + 1;
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linkCounts[link.target.index] = (linkCounts[link.target.index] || 0) + 1;
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}
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}
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if (store.nodesBorderingEu.indexOf(l.source) !== -1 || store.nodesBorderingEu.indexOf(l.target) !== -1) {
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// console.log('outside', l.target)
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return 0.0001;
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}
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// original:
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return 1 / Math.min(linkCounts[l.source.index], linkCounts[l.target.index]);
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})
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)
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// .force("charge", d3.forceManyBody()
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// .strength(-10)
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// )
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// .force("center", d3.forceCenter(width / 2, height / 2))
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.force("collision", d3.forceCollide(function (d) {
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return getSizeForNode(d) * 1.5; // avoid overlapping nodes
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}))
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.force("outsideEu", d3.forceRadial(500, euCenter[0], euCenter[1])
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.strength(function (node, idx) {
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// return 1;
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if (store.nodesBorderingEu.indexOf(node) !== -1) {
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// console.log(node, store.nodesBorderingEu.indexOf(node) !== -1);
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return 1;
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}
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return 0;
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})
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);
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function buildGraph(data, world) {
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// land = topojson.feature(world, world.objects.land)
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const borders = topojson.mesh(world, world.objects.countries, (a, b) => a !== b)
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const countries = topojson.feature(world, world.objects.countries).features;
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const nodes = data.nodes.filter(n => n._INST || n.parent).map(d => Object.create(d));
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console.log('all nodes', nodes);
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const nodeMap = Object.fromEntries(nodes.map(d => [d['@id'], d]));
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const links = data.links.filter(l => nodeMap[l.source] && nodeMap[l.target]).map(d => Object.create(d));
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graph = {
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"nodes": [...nodes],
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"links": [...links],
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}
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store = {
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"nodes": [...nodes],
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"links": [...links],
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"nodesBorderingEu": links.filter(l => l.name == 'City' && (nodeMap[l.target].lon < CONFIG.eu.lonMin || nodeMap[l.target].lon > CONFIG.eu.lonMax)).map(l => nodeMap[l.source]),
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}
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// the .source and .target attributes are still ID's. Only after initialisation of the force are they replaced with their representative objects
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const nodesBorderingEu = links.filter(l => l.name == 'City' && (nodeMap[l.target].lon < CONFIG.eu.lonMin || nodeMap[l.target].lon > CONFIG.eu.lonMax) && ).map(l => nodeMap[l.source]);
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const nodesEastOfEu = links.filter(l => l.name == 'City' && (nodeMap[l.target].lon < CONFIG.eu.lonMin)).map(l => nodeMap[l.source]);
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// console.log(links,nodesBorderingEu, links.filter(l => l.name == 'City').map(l => [l.name, l.target]));
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console.log(nodesBorderingEu)
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const projection = d3.geoHill()
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// .center([0, 0])
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.translate([width / 2, height * 1.5])
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.rotate([-12, 0, 0])
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// .rotate([-12, -52, 0])
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// .clipAngle(170)
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.scale(height * 1.5);
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const proj = d3.geoPath().projection(projection);
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const graticule = d3.geoGraticule10();
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const euCenter = projection([11, 47]);
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// console.log(links);
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let linkCounts = [];
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const linksWithForce = links;//.filter(l => ( nodesBorderingEu.indexOf(nodeMap[l.source]) === -1 && nodesBorderingEu.indexOf(nodeMap[l.target]) === -1 ))
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console.log(linksWithForce);
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const simulation = d3.forceSimulation(nodes)
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.force("link", d3.forceLink(linksWithForce)
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.id(d => d['@id'])
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.iterations(2) // increase to make more rigid
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.distance((l) => {
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// if (getCategories(l.source).indexOf('City') || getCategories(l.target).indexOf('City')) {
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// // if(l.source.lat || l.target.lat) {
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// return 2;
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// }
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return 10;
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})
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.strength((l) => {
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if (linkCounts.length < 1) {
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// replicate from d3-force/src/link.js so we have access to this in our own strength function
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linkCounts = new Array(nodes.length)
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for (let i = 0; i < linksWithForce.length; ++i) {
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let link = linksWithForce[i];
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linkCounts[link.source.index] = (linkCounts[link.source.index] || 0) + 1;
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linkCounts[link.target.index] = (linkCounts[link.target.index] || 0) + 1;
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}
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}
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// if(getTitle(l.source) == "NEC"){
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// console.log(l, l.target, nodesBorderingEu.indexOf(l.target) !== -1);
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// }
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// return 0;
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if(nodesBorderingEu.indexOf(l.source) !== -1 || nodesBorderingEu.indexOf(l.target) !== -1) {
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// console.log('outside', l.target)
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return 0.0001;
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}
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// original:
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return 1 / Math.min(linkCounts[l.source.index], linkCounts[l.target.index]);
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})
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)
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// .force("charge", d3.forceManyBody()
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// .strength(-10)
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// )
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// .force("center", d3.forceCenter(width / 2, height / 2))
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.force("collision", d3.forceCollide(function (d) {
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return getSizeForNode(d) * 1.5; // avoid overlapping nodes
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}))
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.force("outsideEu", d3.forceRadial(500, euCenter[0], euCenter[1])
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.strength(function (node, idx) {
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// return 1;
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if (nodesBorderingEu.indexOf(node) !== -1) {
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// console.log(node, nodesBorderingEu.indexOf(node) !== -1);
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return 1;
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}
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return 0;
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})
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);
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const svg = d3.select("svg")
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.attr("viewBox", [0, 0, width, height]);
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const container = svg.append("g").attr("id", "container");
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// container.append("circle").attr("cx", euCenter[0]).attr("cy", euCenter[1]).attr("r", 500).attr("fill","red")
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const g_countries = container.append("g").attr("id", "countries");
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const g_borders = container.append("g").attr("id", "borders");
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container.append("g")
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.append('path')
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.attr("class", "graticule")
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.attr('d', proj(graticule))
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.attr("fill", "none")
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.attr("stroke-width", "!px")
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.attr("stroke", (n) => {
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return "lightgray";
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});
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;
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g_countries.selectAll("path")
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@ -289,14 +291,10 @@ function buildGraph(data, world) {
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.attr('class', 'links')
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.selectAll(".link")
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.data(links)
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;
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console.log(links);
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link.enter().join("g")
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.join("g")
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.attr("class", "link")
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;
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link.exit().remove();
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// link.exit().remove();
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const linkLine = link
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.append("line").
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@ -309,15 +307,15 @@ function buildGraph(data, world) {
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d.x = euCenter[0];
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d.y = euCenter[1];
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if(nodesBorderingEu.indexOf(d) !== -1) {
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if(nodesEastOfEu.indexOf(d) !== -1) {
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if (store.nodesBorderingEu.indexOf(d) !== -1) {
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if (nodesEastOfEu.indexOf(d) !== -1) {
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d.x = 466.5836692678423;
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d.y = 466.3493609705728;
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} else {
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d.x = 1406.608195836305;
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d.y = 807.9332721328062;
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}
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}
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if (d.lon && d.lat) {
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@ -475,47 +473,17 @@ function buildGraph(data, world) {
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.attr("transform", d => `translate(${d.x}, ${d.y})`);
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});
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update();
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function refresh() {
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container.selectAll(".countries").attr("d", proj);
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container.selectAll(".graticule").attr("d", proj(graticule));
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container.selectAll(".borders").attr("d", proj(borders));
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// simulation.alpha = 0;
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// simulation.restart();
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// nodes.forEach(function (d) {
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// if (d.lon && d.lat) {
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// var p = projection([d.lon, d.lat]);
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// d.fx = p[0];
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// d.fy = p[1];
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// }
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// })
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}
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// beautiful but causes issues with force
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// d3.geoZoom()
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// .northUp(true)
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// .projection(projection)
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// .scaleExtent([.3, 6])
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// .onMove(refresh)(svg.node());
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function resize() {
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width = window.innerWidth;
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height = window.innerHeight;
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d3.selectAll('svg')
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.attr("width", width)
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.attr("height", height);
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projection.translate([width / 2, height / 2]);
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projection.scale(height * 1.5);
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// refresh();
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}
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window.addEventListener('resize', resize);
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return svg.node();
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}
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function update() {
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simulation.nodes(graph.nodes)
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// .on("tick", ticked)
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simulation.force("link")
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.links(graph.links);
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// simulate the first bit without drawing, so we don't have the 'jumping' graph in the beginning
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@ -526,14 +494,8 @@ function buildGraph(data, world) {
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}
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return svg.node();
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}
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color = _ => {
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const scale = d3.scaleOrdinal(d3.schemeCategory10);
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return d => scale(d.group);
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};
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const drag = simulation => {
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let ignoreDrag = false;
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