Published
Edited
Mar 8, 2021
2 forks
2 stars
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data = d3.group(GITHUB_history, d => d.repo, d=> d.author)
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h_data = {
let hd={name:'D3',
children:[]}
data.forEach( (v,k) => {
hd.children.push({name:k,children:[]})
v.forEach( (v1,k1) => {
hd.children[hd.children.length-1].children.push({name:k1,children:[]})
v1.forEach( (v2,k2) => {
hd.children[hd.children.length-1].children[hd.children[hd.children.length-1].children.length-1].children.push({name:v2.subject})
})
})
})
return hd
}
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diagonal = d3.linkHorizontal().x(d => d.y).y(d => d.x)
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tree = d3.tree().nodeSize([dx, dy])
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dx = 10
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dy = width / 6
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margin = ({top: 10, right: 120, bottom: 10, left: 40})
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chart2 = {
const root = d3.hierarchy(h_data);
const links = root.links();
const nodes = root.descendants();

const simulation = d3.forceSimulation(nodes)
.force("link", d3.forceLink(links).id(d => d.id).distance(0).strength(1))
.force("charge", d3.forceManyBody().strength(-50))
.force("x", d3.forceX())
.force("y", d3.forceY());

const svg = d3.create("svg")
.attr("viewBox", [-width / 2, -height / 2, width, height]);

const link = svg.append("g")
.attr("stroke", "#999")
.attr("stroke-opacity", 0.6)
.selectAll("line")
.data(links)
.join("line");

const node = svg.append("g")
.attr("fill", "#fff")
.attr("stroke", "#000")
.attr("stroke-width", 1.5)
.selectAll("circle")
.data(nodes)
.join("circle")
.attr("fill", d => d.children ? null : "#000")
.attr("stroke", d => d.children ? null : "#fff")
.attr("r", 3.5)
.call(drag(simulation));

node.append("title")
.text(d => d.data.name);

simulation.on("tick", () => {
link
.attr("x1", d => d.source.x)
.attr("y1", d => d.source.y)
.attr("x2", d => d.target.x)
.attr("y2", d => d.target.y);

node
.attr("cx", d => d.x)
.attr("cy", d => d.y);
});

invalidation.then(() => simulation.stop());

return svg.node();
}
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drag = simulation => {
function dragstarted(event, d) {
if (!event.active) simulation.alphaTarget(0.3).restart();
d.fx = d.x;
d.fy = d.y;
}
function dragged(event, d) {
d.fx = event.x;
d.fy = event.y;
}
function dragended(event, d) {
if (!event.active) simulation.alphaTarget(0);
d.fx = null;
d.fy = null;
}
return d3.drag()
.on("start", dragstarted)
.on("drag", dragged)
.on("end", dragended);
}
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height = 1200
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viewof searchGIT = Search(GITHUB_history,{label: "Search GITUB commit history."})
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sg = Table(GITHUB_history)
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import {combined as GITHUB_history} from '@codingwithfire/d3-git-history-data'
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import {Table, Search} from "@observablehq/inputs"
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d3 = require('d3')
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_ = require('lodash')
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Observable is your go-to platform for exploring data and creating expressive data visualizations. Use reactive JavaScript notebooks for prototyping and a collaborative canvas for visual data exploration and dashboard creation.
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