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d3-network-diagram
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initial commit, w/ simple force graph

This commit is contained in:
Henry Hobbs 2024-05-19 13:23:03 -04:00
parent 24dc18a22c
commit 3c02ecf295
4 changed files with 592 additions and 0 deletions
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8
index.html Normal file
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<!DOCTYPE html>
<html>
<head>
<title>D3 Network Diagram</title>
<script type="module" src="/plot.js"></script>
</head>
<body></body>
</html>

432
package-lock.json generated Normal file
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{
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}
}

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plot.js Normal file
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import * as d3 from "https://cdn.jsdelivr.net/npm/d3@7/+esm"
import {
forceSimulation,
forceLink,
forceCollide,
} from "https://cdn.jsdelivr.net/npm/d3@7/+esm"
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{ source: "A", target: "L", value: 1 },
{ source: "A", target: "M", value: 1 },
{ source: "A", target: "N", value: 1 },
{ source: "A", target: "O", value: 1 },
{ source: "A", target: "P", value: 1 },
{ source: "A", target: "Q", value: 1 },
{ source: "A", target: "R", value: 1 },
{ source: "A", target: "S", value: 1 },
{ source: "A", target: "T", value: 1 },
{ source: "A", target: "U", value: 1 },
{ source: "A", target: "V", value: 1 },
{ source: "A", target: "W", value: 1 },
{ source: "A", target: "X", value: 1 },
{ source: "A", target: "Y", value: 1 },
{ source: "A", target: "Z", value: 1 },
],
}
const width = window.innerWidth
const height = window.innerHeight
const svg = d3
.select("body")
.append("svg")
.attr("width", width)
.attr("height", height)
const simulation = forceSimulation(data.nodes)
.force(
"link",
forceLink(data.links).id((d) => d.id)
)
.force("collide", forceCollide(30))
const link = svg
.selectAll("line")
.data(data.links)
.enter()
.append("line")
.attr("stroke", "black")
.attr("stroke-width", 1)
const node = svg
.selectAll("circle")
.data(data.nodes)
.enter()
.append("circle")
.attr("r", 10)
.attr("fill", "red")
.call(
d3.drag().on("start", dragStarted).on("drag", dragged).on("end", dragEnded)
)
node.append("title").text((d) => d.id)
const text = svg
.selectAll("text")
.data(data.nodes)
.enter()
.append("text")
.attr("x", (d) => d.x)
.attr("y", (d) => d.y + 20)
.text((d) => d.id)
.attr("text-anchor", "middle")
.attr("fill", "black")
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)
text.attr("x", (d) => d.x).attr("y", (d) => d.y + 20)
})
node.on("click", function (event, d) {
d.fx = null
d.fy = null
})
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)
if (!d3.event.active) {
d.fx = d.x
d.fy = d.y
}
}