{
  "$schema": "https://vega.github.io/schema/vega/v5.json",
  "background": "white",
  "padding": 5,
  "width": 600,
  "title": {"text": "Seattle Weather, 2012-2015", "anchor": "start"},
  "data": [
    {"name": "brush_store"},
    {"name": "click_store"},
    {
      "name": "source_0",
      "url": "https://raw.githubusercontent.com/vega/vega-datasets/master/data/seattle-weather.csv",
      "format": {"type": "csv", "parse": {"date": "date"}, "delimiter": ","}
    },
    {
      "name": "data_0",
      "source": "source_0",
      "transform": [
        {
          "field": "date",
          "type": "timeunit",
          "units": ["month", "date"],
          "as": ["monthdate_date", "monthdate_date_end"]
        },
        {
          "type": "filter",
          "expr": "!length(data(\"brush_store\")) || vlSelectionTest(\"brush_store\", datum)"
        },
        {
          "type": "aggregate",
          "groupby": ["weather"],
          "ops": ["count"],
          "fields": [null],
          "as": ["__count"]
        }
      ]
    },
    {
      "name": "data_1",
      "source": "source_0",
      "transform": [
        {
          "type": "filter",
          "expr": "!length(data(\"click_store\")) || vlSelectionTest(\"click_store\", datum)"
        },
        {
          "field": "date",
          "type": "timeunit",
          "units": ["month", "date"],
          "as": ["monthdate_date", "monthdate_date_end"]
        },
        {
          "type": "filter",
          "expr": "isValid(datum[\"precipitation\"]) && isFinite(+datum[\"precipitation\"]) && (isDate(datum[\"monthdate_date\"]) || (isValid(datum[\"monthdate_date\"]) && isFinite(+datum[\"monthdate_date\"]))) && isValid(datum[\"temp_max\"]) && isFinite(+datum[\"temp_max\"])"
        }
      ]
    }
  ],
  "signals": [
    {"name": "concat_0_height", "value": 300},
    {"name": "concat_1_y_step", "value": 20},
    {
      "name": "concat_1_height",
      "update": "bandspace(domain('concat_1_y').length, 0.1, 0.05) * concat_1_y_step"
    },
    {
      "name": "unit",
      "value": {},
      "on": [
        {"events": "mousemove", "update": "isTuple(group()) ? group() : unit"}
      ]
    },
    {
      "name": "brush",
      "update": "vlSelectionResolve(\"brush_store\", \"union\")"
    },
    {
      "name": "click",
      "update": "vlSelectionResolve(\"click_store\", \"union\", true, true)"
    }
  ],
  "layout": {"padding": 20, "columns": 1, "bounds": "full", "align": "each"},
  "marks": [
    {
      "type": "group",
      "name": "concat_0_group",
      "style": "cell",
      "encode": {
        "update": {
          "width": {"signal": "width"},
          "height": {"signal": "concat_0_height"}
        }
      },
      "signals": [
        {
          "name": "brush_x",
          "value": [],
          "on": [
            {
              "events": {
                "source": "scope",
                "type": "mousedown",
                "filter": [
                  "!event.item || event.item.mark.name !== \"brush_brush\""
                ]
              },
              "update": "[x(unit), x(unit)]"
            },
            {
              "events": {
                "source": "window",
                "type": "mousemove",
                "consume": true,
                "between": [
                  {
                    "source": "scope",
                    "type": "mousedown",
                    "filter": [
                      "!event.item || event.item.mark.name !== \"brush_brush\""
                    ]
                  },
                  {"source": "window", "type": "mouseup"}
                ]
              },
              "update": "[brush_x[0], clamp(x(unit), 0, width)]"
            },
            {
              "events": {"signal": "brush_scale_trigger"},
              "update": "[scale(\"concat_0_x\", brush_monthdate_date[0]), scale(\"concat_0_x\", brush_monthdate_date[1])]"
            },
            {
              "events": [{"source": "view", "type": "dblclick"}],
              "update": "[0, 0]"
            },
            {
              "events": {"signal": "brush_translate_delta"},
              "update": "clampRange(panLinear(brush_translate_anchor.extent_x, brush_translate_delta.x / span(brush_translate_anchor.extent_x)), 0, width)"
            },
            {
              "events": {"signal": "brush_zoom_delta"},
              "update": "clampRange(zoomLinear(brush_x, brush_zoom_anchor.x, brush_zoom_delta), 0, width)"
            }
          ]
        },
        {
          "name": "brush_monthdate_date",
          "on": [
            {
              "events": {"signal": "brush_x"},
              "update": "brush_x[0] === brush_x[1] ? null : invert(\"concat_0_x\", brush_x)"
            }
          ]
        },
        {
          "name": "brush_scale_trigger",
          "value": {},
          "on": [
            {
              "events": [{"scale": "concat_0_x"}],
              "update": "(!isArray(brush_monthdate_date) || (+invert(\"concat_0_x\", brush_x)[0] === +brush_monthdate_date[0] && +invert(\"concat_0_x\", brush_x)[1] === +brush_monthdate_date[1])) ? brush_scale_trigger : {}"
            }
          ]
        },
        {
          "name": "brush_tuple",
          "on": [
            {
              "events": [{"signal": "brush_monthdate_date"}],
              "update": "brush_monthdate_date ? {unit: \"concat_0\", fields: brush_tuple_fields, values: [brush_monthdate_date]} : null"
            }
          ]
        },
        {
          "name": "brush_tuple_fields",
          "value": [{"field": "monthdate_date", "channel": "x", "type": "R"}]
        },
        {
          "name": "brush_translate_anchor",
          "value": {},
          "on": [
            {
              "events": [
                {
                  "source": "scope",
                  "type": "mousedown",
                  "markname": "brush_brush"
                }
              ],
              "update": "{x: x(unit), y: y(unit), extent_x: slice(brush_x)}"
            }
          ]
        },
        {
          "name": "brush_translate_delta",
          "value": {},
          "on": [
            {
              "events": [
                {
                  "source": "window",
                  "type": "mousemove",
                  "consume": true,
                  "between": [
                    {
                      "source": "scope",
                      "type": "mousedown",
                      "markname": "brush_brush"
                    },
                    {"source": "window", "type": "mouseup"}
                  ]
                }
              ],
              "update": "{x: brush_translate_anchor.x - x(unit), y: brush_translate_anchor.y - y(unit)}"
            }
          ]
        },
        {
          "name": "brush_zoom_anchor",
          "on": [
            {
              "events": [
                {
                  "source": "scope",
                  "type": "wheel",
                  "consume": true,
                  "markname": "brush_brush"
                }
              ],
              "update": "{x: x(unit), y: y(unit)}"
            }
          ]
        },
        {
          "name": "brush_zoom_delta",
          "on": [
            {
              "events": [
                {
                  "source": "scope",
                  "type": "wheel",
                  "consume": true,
                  "markname": "brush_brush"
                }
              ],
              "force": true,
              "update": "pow(1.001, event.deltaY * pow(16, event.deltaMode))"
            }
          ]
        },
        {
          "name": "brush_modify",
          "on": [
            {
              "events": {"signal": "brush_tuple"},
              "update": "modify(\"brush_store\", brush_tuple, true)"
            }
          ]
        }
      ],
      "marks": [
        {
          "name": "brush_brush_bg",
          "type": "rect",
          "clip": true,
          "encode": {
            "enter": {
              "fill": {"value": "#333"},
              "fillOpacity": {"value": 0.125}
            },
            "update": {
              "x": [
                {
                  "test": "data(\"brush_store\").length && data(\"brush_store\")[0].unit === \"concat_0\"",
                  "signal": "brush_x[0]"
                },
                {"value": 0}
              ],
              "y": [
                {
                  "test": "data(\"brush_store\").length && data(\"brush_store\")[0].unit === \"concat_0\"",
                  "value": 0
                },
                {"value": 0}
              ],
              "x2": [
                {
                  "test": "data(\"brush_store\").length && data(\"brush_store\")[0].unit === \"concat_0\"",
                  "signal": "brush_x[1]"
                },
                {"value": 0}
              ],
              "y2": [
                {
                  "test": "data(\"brush_store\").length && data(\"brush_store\")[0].unit === \"concat_0\"",
                  "field": {"group": "height"}
                },
                {"value": 0}
              ]
            }
          }
        },
        {
          "name": "concat_0_marks",
          "type": "symbol",
          "style": ["point"],
          "interactive": true,
          "from": {"data": "data_1"},
          "encode": {
            "update": {
              "opacity": {"value": 0.7},
              "fill": {"value": "transparent"},
              "stroke": [
                {
                  "test": "!length(data(\"brush_store\")) || vlSelectionTest(\"brush_store\", datum)",
                  "scale": "color",
                  "field": "weather"
                },
                {"value": "lightgray"}
              ],
              "ariaRoleDescription": {"value": "point"},
              "description": {
                "signal": "\"Weather: \" + (isValid(datum[\"weather\"]) ? datum[\"weather\"] : \"\"+datum[\"weather\"]) + \"; Precipitation: \" + (format(datum[\"precipitation\"], \"\")) + \"; Date: \" + (timeFormat(datum[\"monthdate_date\"], '%b')) + \"; Maximum Daily Temperature (C): \" + (format(datum[\"temp_max\"], \"\"))"
              },
              "x": {"scale": "concat_0_x", "field": "monthdate_date"},
              "y": {"scale": "concat_0_y", "field": "temp_max"},
              "size": {"scale": "size", "field": "precipitation"}
            }
          }
        },
        {
          "name": "brush_brush",
          "type": "rect",
          "clip": true,
          "encode": {
            "enter": {"fill": {"value": "transparent"}},
            "update": {
              "x": [
                {
                  "test": "data(\"brush_store\").length && data(\"brush_store\")[0].unit === \"concat_0\"",
                  "signal": "brush_x[0]"
                },
                {"value": 0}
              ],
              "y": [
                {
                  "test": "data(\"brush_store\").length && data(\"brush_store\")[0].unit === \"concat_0\"",
                  "value": 0
                },
                {"value": 0}
              ],
              "x2": [
                {
                  "test": "data(\"brush_store\").length && data(\"brush_store\")[0].unit === \"concat_0\"",
                  "signal": "brush_x[1]"
                },
                {"value": 0}
              ],
              "y2": [
                {
                  "test": "data(\"brush_store\").length && data(\"brush_store\")[0].unit === \"concat_0\"",
                  "field": {"group": "height"}
                },
                {"value": 0}
              ],
              "stroke": [
                {"test": "brush_x[0] !== brush_x[1]", "value": "white"},
                {"value": null}
              ]
            }
          }
        }
      ],
      "axes": [
        {
          "scale": "concat_0_x",
          "orient": "bottom",
          "gridScale": "concat_0_y",
          "grid": true,
          "tickCount": {"signal": "ceil(width/40)"},
          "domain": false,
          "labels": false,
          "aria": false,
          "maxExtent": 0,
          "minExtent": 0,
          "ticks": false,
          "zindex": 0
        },
        {
          "scale": "concat_0_y",
          "orient": "left",
          "gridScale": "concat_0_x",
          "grid": true,
          "tickCount": {"signal": "ceil(concat_0_height/40)"},
          "domain": false,
          "labels": false,
          "aria": false,
          "maxExtent": 0,
          "minExtent": 0,
          "ticks": false,
          "zindex": 0
        },
        {
          "scale": "concat_0_x",
          "orient": "bottom",
          "grid": false,
          "title": "Date",
          "format": "%b",
          "labelFlush": true,
          "labelOverlap": true,
          "tickCount": {"signal": "ceil(width/40)"},
          "zindex": 0
        },
        {
          "scale": "concat_0_y",
          "orient": "left",
          "grid": false,
          "title": "Maximum Daily Temperature (C)",
          "labelOverlap": true,
          "tickCount": {"signal": "ceil(concat_0_height/40)"},
          "zindex": 0
        }
      ]
    },
    {
      "type": "group",
      "name": "concat_1_group",
      "style": "cell",
      "encode": {
        "update": {
          "width": {"signal": "width"},
          "height": {"signal": "concat_1_height"}
        }
      },
      "signals": [
        {
          "name": "click_tuple",
          "on": [
            {
              "events": [{"source": "scope", "type": "click"}],
              "update": "datum && item().mark.marktype !== 'group' ? {unit: \"concat_1\", fields: click_tuple_fields, values: [(item().isVoronoi ? datum.datum : datum)[\"weather\"]]} : null",
              "force": true
            },
            {
              "events": [{"source": "view", "type": "dblclick"}],
              "update": "null"
            }
          ]
        },
        {
          "name": "click_tuple_fields",
          "value": [{"field": "weather", "channel": "color", "type": "E"}]
        },
        {
          "name": "click_toggle",
          "value": false,
          "on": [
            {
              "events": [{"source": "scope", "type": "click"}],
              "update": "event.shiftKey"
            },
            {
              "events": [{"source": "view", "type": "dblclick"}],
              "update": "false"
            }
          ]
        },
        {
          "name": "click_modify",
          "on": [
            {
              "events": {"signal": "click_tuple"},
              "update": "modify(\"click_store\", click_toggle ? null : click_tuple, click_toggle ? null : true, click_toggle ? click_tuple : null)"
            }
          ]
        }
      ],
      "marks": [
        {
          "name": "concat_1_marks",
          "type": "rect",
          "style": ["bar"],
          "interactive": true,
          "from": {"data": "data_0"},
          "encode": {
            "update": {
              "fill": [
                {
                  "test": "!length(data(\"click_store\")) || vlSelectionTest(\"click_store\", datum)",
                  "scale": "color",
                  "field": "weather"
                },
                {"value": "lightgray"}
              ],
              "ariaRoleDescription": {"value": "bar"},
              "description": {
                "signal": "\"weather: \" + (isValid(datum[\"weather\"]) ? datum[\"weather\"] : \"\"+datum[\"weather\"]) + \"; Count of Records: \" + (format(datum[\"__count\"], \"\")) + \"; Weather: \" + (isValid(datum[\"weather\"]) ? datum[\"weather\"] : \"\"+datum[\"weather\"])"
              },
              "x": {"scale": "concat_1_x", "field": "__count"},
              "x2": {"scale": "concat_1_x", "value": 0},
              "y": {"scale": "concat_1_y", "field": "weather"},
              "height": {"scale": "concat_1_y", "band": 1}
            }
          }
        }
      ],
      "axes": [
        {
          "scale": "concat_1_x",
          "orient": "bottom",
          "gridScale": "concat_1_y",
          "grid": true,
          "tickCount": {"signal": "ceil(width/40)"},
          "domain": false,
          "labels": false,
          "aria": false,
          "maxExtent": 0,
          "minExtent": 0,
          "ticks": false,
          "zindex": 0
        },
        {
          "scale": "concat_1_x",
          "orient": "bottom",
          "grid": false,
          "title": "Count of Records",
          "labelFlush": true,
          "labelOverlap": true,
          "tickCount": {"signal": "ceil(width/40)"},
          "zindex": 0
        },
        {
          "scale": "concat_1_y",
          "orient": "left",
          "grid": false,
          "title": "Weather",
          "zindex": 0
        }
      ]
    }
  ],
  "scales": [
    {
      "name": "color",
      "type": "ordinal",
      "domain": ["sun", "fog", "drizzle", "rain", "snow"],
      "range": ["#e7ba52", "#a7a7a7", "#aec7e8", "#1f77b4", "#9467bd"]
    },
    {
      "name": "size",
      "type": "linear",
      "domain": [-1, 50],
      "range": [0, 361],
      "zero": true
    },
    {
      "name": "concat_0_x",
      "type": "time",
      "domain": {"data": "data_1", "field": "monthdate_date"},
      "range": [0, {"signal": "width"}]
    },
    {
      "name": "concat_0_y",
      "type": "linear",
      "domain": [-5, 40],
      "range": [{"signal": "concat_0_height"}, 0],
      "zero": true
    },
    {
      "name": "concat_1_x",
      "type": "linear",
      "domain": {"data": "data_0", "field": "__count"},
      "range": [0, {"signal": "width"}],
      "nice": true,
      "zero": true
    },
    {
      "name": "concat_1_y",
      "type": "band",
      "domain": {"data": "data_0", "field": "weather", "sort": true},
      "range": {"step": {"signal": "concat_1_y_step"}},
      "paddingInner": 0.1,
      "paddingOuter": 0.05
    }
  ],
  "legends": [
    {
      "title": "Weather",
      "stroke": "color",
      "symbolType": "circle",
      "encode": {"symbols": {"update": {"opacity": {"value": 0.7}}}},
      "fill": "color"
    },
    {
      "title": "Precipitation",
      "size": "size",
      "symbolType": "circle",
      "encode": {
        "symbols": {
          "update": {
            "fill": {"value": "transparent"},
            "stroke": {"value": "lightgray"},
            "opacity": {"value": 0.7}
          }
        }
      }
    }
  ]
}