interactive_bin_extent.vg.json

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          "type": "formula",
          "expr": "hours(datum.date) + minutes(datum.date) / 60",
          "as": "time"
        },
        {
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          "signal": "concat_1_bin_maxbins_30_extent_param_brush_time_extent"
        },
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          "type": "bin",
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            "bin_maxbins_30_extent_param_brush_time",
            "bin_maxbins_30_extent_param_brush_time_end"
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            "signal": "concat_1_bin_maxbins_30_extent_param_brush_time_extent"
          },
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          "maxbins": 30
        },
        {
          "type": "extent",
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        },
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      ]
    },
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    }
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                    "source": "scope",
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                  {"source": "window", "type": "mouseup"}
                ]
              },
              "update": "[brush_x[0], clamp(x(unit), 0, width)]"
            },
            {
              "events": {"signal": "brush_scale_trigger"},
              "update": "[scale(\"concat_0_x\", brush_time[0]), scale(\"concat_0_x\", brush_time[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_time",
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            {
              "events": {"signal": "brush_x"},
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            }
          ]
        },
        {
          "name": "brush_scale_trigger",
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            {
              "events": [{"scale": "concat_0_x"}],
              "update": "(!isArray(brush_time) || (+invert(\"concat_0_x\", brush_x)[0] === +brush_time[0] && +invert(\"concat_0_x\", brush_x)[1] === +brush_time[1])) ? brush_scale_trigger : {}"
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          ]
        },
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            {
              "events": [{"signal": "brush_time"}],
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            }
          ]
        },
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          "name": "brush_translate_anchor",
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                  "source": "scope",
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          ]
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          "name": "brush_translate_delta",
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          "name": "brush_zoom_anchor",
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                {
                  "source": "scope",
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              ],
              "update": "{x: x(unit), y: y(unit)}"
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          "name": "brush_zoom_delta",
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            {
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                {
                  "source": "scope",
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                }
              ],
              "force": true,
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            }
          ]
        },
        {
          "name": "brush_modify",
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            {
              "events": {"signal": "brush_tuple"},
              "update": "modify(\"brush_store\", brush_tuple, true)"
            }
          ]
        }
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                {
                  "test": "data(\"brush_store\").length && data(\"brush_store\")[0].unit === \"concat_0\"",
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            "update": {
              "fill": {"value": "#4c78a8"},
              "ariaRoleDescription": {"value": "bar"},
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        },
        {
          "scale": "concat_0_y",
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      ]
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