{
  "$schema": "https://vega.github.io/schema/vega/v5.json",
  "padding": 5,

  "config": {
    "legend": {
      "offset": 5,
      "gradientDirection": "horizontal",
      "gradientLength": 300
    }
  },

  "data": [
    {
      "name": "source",
      "values": [
        {"a": "A", "b": 28},
        {"a": "B", "b": 59},
        {"a": "C", "b": 43},
        {"a": "D", "b": 91},
        {"a": "E", "b": 81},
        {"a": "F", "b": 53},
        {"a": "G", "b": 19},
        {"a": "H", "b": 87},
        {"a": "I", "b": 50}
      ]
    },
    {
      "name": "binned",
      "values": [
        {"v": 28}, {"v": 55}, {"v": 43}, {"v": 91}, {"v": 34}, {"v": 81},
        {"v": 53}, {"v": 19}, {"v": 87}, {"v": 38}, {"v": 52}, {"v": 48},
        {"v": 24}, {"v": 49}, {"v": 87}, {"v": 66}, {"v": 17}, {"v": 27},
        {"v": 68}, {"v": 12}, {"v": 49}, {"v":  4}
      ],
      "transform": [
        {
          "type": "extent", "field": "v",
          "signal": "extent"
        },
        {
          "type": "bin", "maxbins": 5, "signal": "bins5",
          "field": "v", "extent": {"signal": "extent"}
        },
        {
          "type": "bin", "maxbins": 10, "signal": "bins10",
          "field": "v", "extent": {"signal": "extent"}
        }
      ]
    }
  ],

  "scales": [
    {
      "name": "qua2",
      "type": "quantize",
      "domain": [0, 0.15],
      "range": {"scheme": "blues", "count": 2}
    },
    {
      "name": "qua3",
      "type": "quantize",
      "domain": [0, 0.15],
      "range": {"scheme": "blues", "count": 3}
    },
    {
      "name": "qua4",
      "type": "quantize",
      "domain": [0, 0.15],
      "range": {"scheme": "blues", "count": 4}
    },
    {
      "name": "qua5",
      "type": "quantize",
      "domain": [0, 0.15],
      "range": {"scheme": "blues", "count": 5}
    },
    {
      "name": "qua6",
      "type": "quantize",
      "domain": [0, 0.15],
      "range": {"scheme": "blues", "count": 6}
    },
    {
      "name": "qua7",
      "type": "quantize",
      "domain": [0, 0.15],
      "range": {"scheme": "blues", "count": 7}
    },
    {
      "name": "qua8",
      "type": "quantize",
      "domain": [0, 0.15],
      "range": {"scheme": "blues", "count": 8}
    },
    {
      "name": "qua9",
      "type": "quantize",
      "domain": [0, 0.15],
      "range": {"scheme": "blues", "count": 9}
    },
    {
      "name": "tile3",
      "type": "quantile",
      "range": {"scheme": "redyellowblue", "count": 3},
      "domain": {"data": "source", "field": "b"}
    },
    {
      "name": "tile5",
      "type": "quantile",
      "range": {"scheme": "redyellowblue", "count": 5},
      "domain": {"data": "source", "field": "b"}
    },
    {
      "name": "tile7",
      "type": "quantile",
      "range": {"scheme": "redyellowblue", "count": 7},
      "domain": {"data": "source", "field": "b"}
    },
    {
      "name": "thresh1",
      "type": "threshold",
      "range": {"scheme": "viridis"},
      "domain": [50]
    },
    {
      "name": "thresh2",
      "type": "threshold",
      "range": {"scheme": "viridis"},
      "domain": [30, 70]
    },
    {
      "name": "thresh3",
      "type": "threshold",
      "range": {"scheme": "viridis"},
      "domain": [30, 70, 90]
    },
    {
      "name": "bins5",
      "type": "bin-ordinal",
      "range": {"scheme": "purpleorange"},
      "bins": {"signal": "bins5"}
    },
    {
      "name": "bins10",
      "type": "bin-ordinal",
      "range": {"scheme": "purpleorange"},
      "bins": {"signal": "bins10"}
    }
  ],

  "legends": [
    {"orient": "left",  "type": "gradient", "fill": "qua2", "title": "Quantize 2"},
    {"orient": "left",  "type": "gradient", "fill": "qua3", "title": "Quantize 3"},
    {"orient": "left",  "type": "gradient", "fill": "qua4", "title": "Quantize 4"},
    {"orient": "left",  "type": "gradient", "fill": "qua5", "title": "Quantize 5"},
    {"orient": "left",  "type": "gradient", "fill": "qua6", "title": "Quantize 6"},
    {"orient": "left",  "type": "gradient", "fill": "qua7", "title": "Quantize 7"},
    {"orient": "left",  "type": "gradient", "fill": "qua8", "title": "Quantize 8"},
    {"orient": "left",  "type": "gradient", "fill": "qua9", "title": "Quantize 9"},

    {"orient": "right", "type": "gradient", "fill": "tile3", "title": "Quantile 3"},
    {"orient": "right", "type": "gradient", "fill": "tile5", "title": "Quantile 5"},
    {"orient": "right", "type": "gradient", "fill": "tile7", "title": "Quantile 7"},
    {"orient": "right", "type": "gradient", "fill": "thresh1", "title": "Threshold 1"},
    {"orient": "right", "type": "gradient", "fill": "thresh2", "title": "Threshold 2"},
    {"orient": "right", "type": "gradient", "fill": "thresh3", "title": "Threshold 3"},
    {"orient": "right", "type": "gradient", "fill": "bins5", "title": "Bin-Ordinal 5"},
    {"orient": "right", "type": "gradient", "fill": "bins10", "title": "Bin-Ordinal 10"}
  ]
}