{
  "$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/next/data/seattle-weather.csv",
      "format": {
        "type": "csv",
        "parse": {
          "date": "date"
        }
      }
    },
    {
      "name": "data_0",
      "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": "(isDate(datum[\"monthdate_date\"]) || (isValid(datum[\"monthdate_date\"]) && isFinite(+datum[\"monthdate_date\"]))) && isValid(datum[\"temp_max\"]) && isFinite(+datum[\"temp_max\"]) && isValid(datum[\"precipitation\"]) && isFinite(+datum[\"precipitation\"])"
        }
      ]
    },
    {
      "name": "data_1",
      "source": "source_0",
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        {
          "field": "date",
          "type": "timeunit",
          "units": [
            "month",
            "date"
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          "as": [
            "monthdate_date",
            "monthdate_date_end"
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        },
        {
          "type": "filter",
          "expr": "!length(data(\"brush_store\")) || vlSelectionTest(\"brush_store\", datum)"
        },
        {
          "type": "aggregate",
          "groupby": [
            "weather"
          ],
          "ops": [
            "count"
          ],
          "fields": [
            null
          ],
          "as": [
            "__count"
          ]
        }
      ]
    }
  ],
  "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": "pointermove",
          "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"
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        }
      },
      "signals": [
        {
          "name": "brush_x",
          "value": [],
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            {
              "events": {
                "source": "scope",
                "type": "pointerdown",
                "filter": [
                  "!event.item || event.item.mark.name !== \"brush_brush\""
                ]
              },
              "update": "[x(unit), x(unit)]"
            },
            {
              "events": {
                "source": "window",
                "type": "pointermove",
                "consume": true,
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                  {
                    "source": "scope",
                    "type": "pointerdown",
                    "filter": [
                      "!event.item || event.item.mark.name !== \"brush_brush\""
                    ]
                  },
                  {
                    "source": "window",
                    "type": "pointerup"
                  }
                ]
              },
              "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"
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          ]
        },
        {
          "name": "brush_tuple_fields",
          "value": [
            {
              "field": "monthdate_date",
              "channel": "x",
              "type": "R"
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          ]
        },
        {
          "name": "brush_translate_anchor",
          "value": {},
          "on": [
            {
              "events": [
                {
                  "source": "scope",
                  "type": "pointerdown",
                  "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": "pointermove",
                  "consume": true,
                  "between": [
                    {
                      "source": "scope",
                      "type": "pointerdown",
                      "markname": "brush_brush"
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                    {
                      "source": "window",
                      "type": "pointerup"
                    }
                  ]
                }
              ],
              "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]"
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              ],
              "y": [
                {
                  "test": "data(\"brush_store\").length && data(\"brush_store\")[0].unit === \"concat_0\"",
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              ],
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                {
                  "test": "data(\"brush_store\").length && data(\"brush_store\")[0].unit === \"concat_0\"",
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              ],
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                  "test": "data(\"brush_store\").length && data(\"brush_store\")[0].unit === \"concat_0\"",
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                },
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                  "value": 0
                }
              ]
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          }
        },
        {
          "name": "concat_0_marks",
          "type": "symbol",
          "style": [
            "point"
          ],
          "interactive": true,
          "from": {
            "data": "data_0"
          },
          "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"
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              ],
              "ariaRoleDescription": {
                "value": "point"
              },
              "description": {
                "signal": "\"Date: \" + (timeFormat(datum[\"monthdate_date\"], '%b')) + \"; Maximum Daily Temperature (C): \" + (format(datum[\"temp_max\"], \"\")) + \"; Weather: \" + (isValid(datum[\"weather\"]) ? datum[\"weather\"] : \"\"+datum[\"weather\"]) + \"; Precipitation: \" + (format(datum[\"precipitation\"], \"\"))"
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                "scale": "concat_0_x",
                "field": "monthdate_date"
              },
              "y": {
                "scale": "concat_0_y",
                "field": "temp_max"
              },
              "size": {
                "scale": "size",
                "field": "precipitation"
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            }
          }
        },
        {
          "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\"",
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                  "signal": "brush_x[1]"
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                  "value": 0
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              ],
              "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)"
          },
          "tickMinStep": {
            "signal": "datetime(2001, 0, 2, 0, 0, 0, 0) - datetime(2001, 0, 1, 0, 0, 0, 0)"
          },
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          "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)"
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          "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)"
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          "tickMinStep": {
            "signal": "datetime(2001, 0, 2, 0, 0, 0, 0) - datetime(2001, 0, 1, 0, 0, 0, 0)"
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        },
        {
          "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' && indexof(item().mark.role, 'legend') < 0 ? {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",
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            {
              "field": "weather",
              "channel": "color",
              "type": "E"
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          ]
        },
        {
          "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_1"
          },
          "encode": {
            "update": {
              "fill": [
                {
                  "test": "!length(data(\"click_store\")) || vlSelectionTest(\"click_store\", datum)",
                  "scale": "color",
                  "field": "weather"
                },
                {
                  "value": "lightgray"
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              ],
              "ariaRoleDescription": {
                "value": "bar"
              },
              "description": {
                "signal": "\"Count of Records: \" + (format(datum[\"__count\"], \"\")) + \"; Weather: \" + (isValid(datum[\"weather\"]) ? datum[\"weather\"] : \"\"+datum[\"weather\"]) + \"; 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": {
                "signal": "max(0.25, bandwidth('concat_1_y'))"
              }
            }
          }
        }
      ],
      "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"
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    },
    {
      "name": "size",
      "type": "linear",
      "domain": [
        -1,
        50
      ],
      "range": [
        0,
        361
      ],
      "zero": true
    },
    {
      "name": "concat_0_x",
      "type": "time",
      "domain": {
        "data": "data_0",
        "field": "monthdate_date"
      },
      "range": [
        0,
        {
          "signal": "width"
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      ]
    },
    {
      "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_1",
        "field": "__count"
      },
      "range": [
        0,
        {
          "signal": "width"
        }
      ],
      "nice": true,
      "zero": true
    },
    {
      "name": "concat_1_y",
      "type": "band",
      "domain": {
        "data": "data_1",
        "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"
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            "opacity": {
              "value": 0.7
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        }
      }
    }
  ]
}