md`# Chord Diagram Playground`
radius = size / 2;
innerRadius = outerRadius - innerRadiusWidth;
outerRadius = size * 0.5 - outerRadiusWidth
viewof size = slider({min: 50, max: 600, step:10, title: "Size:"})
viewof outerRadiusWidth = slider({ min: 0, max: 20, step: 2, title: "Outer Radius width:"})
viewof innerRadiusWidth = slider({min:1 , max: 10, step: 2, title: "Inner Radius width:"})
viewof padAngle = slider({min: 0, max: 0.3, step:0.01, title: "PadAngle:"})
chord = d3.chordDirected()
// .padAngle(10 / innerRadius)
.padAngle(padAngle)
.sortSubgroups(d3.descending)
.sortChords(d3.descending)
ribbon = d3.ribbon()
.radius(innerRadius)
// .padAngle(1 / innerRadius)
arc = d3.arc()
.innerRadius(innerRadius)
.outerRadius(outerRadius)
matrix = {
const index = new Map(names.map((name, i) => [name, i]));
const matrix = Array.from(index, () => new Array(names.length).fill(0));
for (const {source, target, value} of data) matrix[index.get(source)][index.get(target)] += value;
return matrix;
}
names = Array.from(new Set(data.flatMap(d => [d.source, d.target])))
md`## Library`
d3 = require("d3@6")
import {slider, radio, text, select, color} from '@jashkenas/inputs'
md`## Reference
`
md`## TODOs
- add label
- color palette
- color gradient
- animated
`
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