mlb_network.vg.json

{
  "$schema": "https://vega.github.io/schema/vega/v5.9.json",
  "width": 1400,
  "height": 850,
  "background": "#f2f1ed",
  "padding": {"top": 0, "left": 0, "right": 0, "bottom": 0},
  "autosize": "none",

  "data": [
    {
      "name": "states",
      "url": "data/us.json",
      "format": {"type": "topojson", "feature": "states"},
      "transform": [
        {
          "type": "geopath",
          "projection": "projection"
        }
      ]
    },
    {
      "name": "teams",
      "url": "data/MLB.csv",
      "format": {"type": "csv", "parse": "auto"},
      "transform": [
        {
          "type": "geopoint",
          "projection": "projection",
          "fields": ["Longitude", "Latitude"]
        },
        {
          "type": "voronoi", "x": "x", "y": "y"
        },
        {
          "type": "collect", "sort": {
            "field": "Names",
            "order": "ascending"
          }
        }
      ]
    },
    {
      "name": "affiliates",
      "url": "data/affiliates.csv",
      "format": {"type": "csv", "parse": "auto"},
      "transform": [
        {
          "type": "filter",
          "expr": "hover && hover.ID == datum.Parent"
        },
        {
          "type": "lookup",
          "from": "teams", "key": "ID",
          "fields": ["Parent", "Child"], "as": ["source", "target"]
        },
        {
          "type": "filter",
          "expr": "datum.source && datum.target"
        },
        {
          "type": "linkpath",
          "shape": "line"
        }
      ]
    }
  ],

  "signals": [
    { "name": "tx", "update": "width / 2" },
    { "name": "ty", "update": "height / 2" },
    {
      "name": "hover",
      "value": null,
      "on": [
        {"events": "@cell:mouseover", "update": "datum"},
        {"events": "@cell:mouseout", "update": "null"}
      ]
    },
    {
      "name": "title",
      "value": null,
      "update": "hover ? hover.Name + ' - ' + hover.Level: ''"
    }
  ],

  "scales": [
    {
      "name": "size",
      "type": "linear",
      "domain": {"data": "teams", "field": "League"},
      "range": [0, 700]
    }
  ],

  "projections": [
    {
      "name": "projection",
      "type": "albersUsa",
      "scale": 1600,
      "center": [40,80],
      "translate": [{"signal": "tx"}, {"signal": "ty"}]
    }
  ],

  "marks": [
    {
      "type": "path",
      "from": {"data": "states"},
      "encode": {
        "enter": {
          "fill": {"value": "#dedede"},
          "stroke": {"value": "darkgray"}
        },
        "update": {
          "path": {"field": "path"}
        }
      }
    },
    {
      "type": "symbol",
      "from": {"data": "teams"},
      "encode": {
        "enter": {
          "size": {"scale": "size", "field": "League"},
          "fill": {"field": "PrimaryColor"},
          "fillOpacity": {"value": 0.8},
          "strokeWidth": {"value": 2.5},
          "stroke": {"field": "SecondaryColor"},
          "blend": "hard-light"
        },
        "update": {
          "x": {"field": "x"},
          "y": {"field": "y"}
        }
      }
    },
    {
      "type": "path",
      "name": "cell",
      "from": {"data": "teams"},
      "encode": {
        "enter": {
          "fill": {"value": "transparent"}
        },
        "update": {
          "path": {"field": "path"}
        }
      }
    },
    {
      "type": "text",
      "interactive": false,
      "encode": {
        "enter": {
          "x": {"signal": "width / 2", "offset": -5},
          "y": {"signal": "height - 20"},
          "fill": {"value": "black"},
          "fontSize": {"value": 40},
          "align": {"value": "center"}
        },
        "update": {
          "text": {"signal": "title"}
        }
      }
    },
    {
      "type": "path",
      "interactive": false,
      "from": {"data": "affiliates"},
      "encode": {
        "enter": {
          "path": {"field": "path"},
          "stroke": {"value": "black"},
          "strokeOpacity": {"value": 0.5},
          "strokeWidth": {"value": 5}
        },
        "update": {
          "path": {"field": "path"}
        }
      }
    }

  ],
  "legends": [
    {
      "title": "Legend",
      "size": "size",
      "orient": "left",
      "type": "symbol",
      "symbolFillColor": "gray",
      "symbolStrokeWidth": 1,
      "direction": "vertical",
      "tickCount": 4,
      "tickMinStep": 50
    }
  ],
  "config": {
    "legend": {
      "layout": {
        "anchor": "left"
      }
    }
  }
}