Refactoring

This commit is contained in:
Ruben van de Ven 2021-03-31 17:02:00 +02:00
parent 1573eae7e4
commit 13f0a83475

View file

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