Arc diagrams arrange network nodes along a single linear axis and draw arcs above or below the line to represent connections between them. Arc width or opacity encodes connection strength. They work especially well for ordered nodes (timelines, ranked lists) where the sequential arrangement carries meaning.

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{
  "title": {
    "text": "Team Collaboration Network"
  },
  "data": [
    {
      "source": "Alice",
      "target": "Bob",
      "value": 42
    },
    {
      "source": "Alice",
      "target": "Carol",
      "value": 28
    },
    {
      "source": "Alice",
      "target": "David",
      "value": 15
    },
    {
      "source": "Bob",
      "target": "Carol",
      "value": 35
    },
    {
      "source": "Bob",
      "target": "Eve",
      "value": 20
    },
    {
      "source": "Carol",
      "target": "Frank",
      "value": 48
    },
    {
      "source": "Carol",
      "target": "Grace",
      "value": 22
    },
    {
      "source": "David",
      "target": "Eve",
      "value": 31
    },
    {
      "source": "David",
      "target": "Henry",
      "value": 18
    },
    {
      "source": "Eve",
      "target": "Frank",
      "value": 25
    },
    {
      "source": "Frank",
      "target": "Grace",
      "value": 40
    },
    {
      "source": "Grace",
      "target": "Henry",
      "value": 29
    },
    {
      "source": "Alice",
      "target": "Frank",
      "value": 12
    },
    {
      "source": "Bob",
      "target": "Henry",
      "value": 8
    }
  ],
  "series": [
    {
      "type": "arcdiagram",
      "sourceKey": "source",
      "targetKey": "target",
      "valueKey": "value",
      "stroke": "#6366f1",
      "strokeOpacity": 0.6,
      "fill": "#6366f1"
    }
  ]
}

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Collaboration frequency between eight team members arranged linearly with arcs showing communication strength.

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