Brushing Scatter Plot to show data on a table

Drag a rectangular brush to show (first 20) selected points in a table.

View this example in the online editor

Vega-Lite JSON Specification

{
  "$schema": "https://vega.github.io/schema/vega-lite/v3.json",
  "description": "Drag a rectangular brush to show (first 20) selected points in a table.",
  "data": {"url": "data/cars.json"},
  "transform": [{
    "window": [{"op": "row_number", "as": "row_number"}]
  }],
  "hconcat": [{
    "selection": {
      "brush": {
        "type": "interval"
      }
    },
    "mark": "point",
    "encoding": {
      "x": {"field": "Horsepower", "type": "quantitative"},
      "y": {"field": "Miles_per_Gallon", "type": "quantitative"},
      "color": {
        "condition": {"selection": "brush", "field": "Cylinders", "type": "ordinal"},
        "value": "grey"
      }
    }
  }, {
    "transform": [
      {"filter": {"selection": "brush"}},
      {"window": [{"op": "rank", "as": "rank"}]},
      {"filter": {"field": "rank", "lt": 20}}
    ],
    "hconcat": [{
      "title": "Horsepower",
      "mark": "text",
      "encoding": {
        "text": {"field": "Horsepower", "type": "nominal"},
        "y": {"field": "row_number", "type": "ordinal", "axis": null}
      }
    }, {
      "title": "MPG",
      "mark": "text",
      "encoding": {
        "text": {"field": "Miles_per_Gallon", "type": "nominal"},
        "y": {"field": "row_number", "type": "ordinal", "axis": null}
      }
    }, {
      "title": "Origin",
      "mark": "text",
      "encoding": {
        "text": {"field": "Origin", "type": "nominal"},
        "y": {"field": "row_number", "type": "ordinal", "axis": null}
      }
    }]
  }],
  "resolve": {
    "legend": {
      "color": "independent"
    }
  }
}