{
    "data": {
        "url": "https://vega.github.io/vega-lite/data/cars.json"
    },
    "vconcat": [
        {
            "mark": "point",
            "selection": {
                "brush": {
                    "type": "interval"
                }
            },
            "encoding": {
                "x": {
                    "field": "Horsepower",
                    "type": "quantitative"
                },
                "y": {
                    "field": "Miles_per_Gallon",
                    "type": "quantitative"
                }
            }
        },
        {
            "transform": [
                {
                    "filter": {
                        "and": [
                            {
                                "selection": "brush"
                            },
                            "datum.Weight_in_lbs > 3000"
                        ]
                    }
                }
            ],
            "mark": "point",
            "encoding": {
                "x": {
                    "field": "Acceleration",
                    "scale": {
                        "domain": [
                            0,
                            25
                        ]
                    },
                    "type": "quantitative"
                },
                "y": {
                    "field": "Displacement",
                    "scale": {
                        "domain": [
                            0,
                            500
                        ]
                    },
                    "type": "quantitative"
                }
            }
        }
    ],
    "$schema": "https://vega.github.io/schema/vega-lite/v4.json"
}