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Chord Diagrams

Chord diagrams show the inter-relationships and flow magnitudes between a set of entities arranged in a circle. Each entity occupies an arc segment, and chords connect pairs of entities with a width proportional to the flow between them. They are ideal for visualizing complex many-to-many relationships.

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{
  "title": {
    "text": "Bilateral Trade Flows ($B)"
  },
  "data": [
    {
      "from": "USA",
      "to": "China",
      "value": 180
    },
    {
      "from": "China",
      "to": "USA",
      "value": 540
    },
    {
      "from": "USA",
      "to": "EU",
      "value": 370
    },
    {
      "from": "EU",
      "to": "USA",
      "value": 520
    },
    {
      "from": "China",
      "to": "EU",
      "value": 480
    },
    {
      "from": "EU",
      "to": "China",
      "value": 260
    },
    {
      "from": "USA",
      "to": "Japan",
      "value": 140
    },
    {
      "from": "Japan",
      "to": "USA",
      "value": 210
    },
    {
      "from": "China",
      "to": "Japan",
      "value": 180
    },
    {
      "from": "Japan",
      "to": "China",
      "value": 160
    },
    {
      "from": "EU",
      "to": "Japan",
      "value": 95
    },
    {
      "from": "Japan",
      "to": "EU",
      "value": 110
    }
  ],
  "series": [
    {
      "type": "chord",
      "sourceKey": "from",
      "targetKey": "to",
      "valueKey": "value"
    }
  ],
  "legend": {
    "enabled": true,
    "position": "bottom"
  }
}

Edit JSON above · auto-previews after 0.9 s

Bilateral trade relationships between four major economies, with chord width proportional to trade volume.

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