d3Network = require("d3-network-time@0.2.1")
d3 = require("d3@5")
html`<body><div class='Network'></div></body>`
chart = {
const transitionDuration = 700
const radiusScale = d3.scaleSqrt().domain([1, 50]).range([3, 25])
const colorScale = d3.scaleOrdinal()
.range(["#7EB852", "#3465A8", "#7F378D"])
.domain(["root", "parent", "children"])
const radiusAccessor = (d) => radiusScale(d.value)
const nodeColorAccessor = (d) => colorScale(d.type)
const defaultGraphElements = {
transitionDuration,
radiusAccessor,
nodeColorAccessor
}
const forceCharge = d3.forceManyBody().strength(-10)
const forceCollide = d3.forceCollide(function (d) { return d.radius * 2})
const simulation = d3.forceSimulation().force(
"link",
d3.forceLink()
.strength(function (d) {
return d.strength
})
)
.force("charge", forceCharge)
.force("collide", forceCollide)
.force(
"center",
d3.forceCenter(width/2, width/2)
)
d3Network.network(simulation)
.selector(".Network")
.width(width)
.height(width)
.start(1583070000000)
.end(1583107180000)
.style(defaultGraphElements)
.animation({ mode: "auto", step: "hour", show_time: true })(dataNew)
}
dataNew = processData(data)
data = await FileAttachment("test.json").json()
function processData(data) {
let processedLinks = processLinks(data)
let processedNodes = processNodes(data)
return {nodes: processedNodes, links: processedLinks}
}
function processNodes(data) {
let nodes = []
let ids_1 = data.map(d=>d.user_id)
let ids_2 = data.map(d=>d.original_user_id)
let nodeIDs = ids_1.concat(ids_2).filter(onlyUnique)
nodeIDs.forEach((d,i) => {
if(d){
let epoch = data.find(el=>el.user_id === d | el.original_user_id === d).epoch
nodes.push({
id : d.toString(),
date: epoch,
value: 1
})
}
})
return nodes
}
function processLinks(links) {
let linksNew = []
links.map((d,i) => {
linksNew.push({
id : i,
date : d.epoch,
start_id : d.original_user_id,
end_id : d.user_id,
value : 1
})
})
return linksNew
}
function onlyUnique(value, index, self) {
return self.indexOf(value) === index
}
One platform to build and deploy the best data apps
Experiment and prototype by building visualizations in live JavaScript notebooks. Collaborate with your team and decide which concepts to build out.
Use Observable Framework to build data apps locally. Use data loaders to build in any language or library, including Python, SQL, and R.
Seamlessly deploy to Observable. Test before you ship, use automatic deploy-on-commit, and ensure your projects are always up-to-date.