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area_vertical.vg.json
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area_vertical.vg.json
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{
"$schema": "https://vega.github.io/schema/vega/v5.json",
"description": "Area chart showing weight of cars over time (vertical).",
"background": "white",
"padding": 5,
"width": 200,
"height": 200,
"style": "cell",
"data": [
{
"name": "source_0",
"url": "data/cars.json",
"format": {"type": "json", "parse": {"Year": "date"}},
"transform": [
{
"field": "Year",
"type": "timeunit",
"units": ["year"],
"as": ["year_Year", "year_Year_end"]
},
{
"type": "aggregate",
"groupby": ["year_Year"],
"ops": ["sum"],
"fields": ["Weight_in_lbs"],
"as": ["sum_Weight_in_lbs"]
}
]
}
],
"marks": [
{
"name": "marks",
"type": "area",
"style": ["area"],
"sort": {"field": "datum[\"year_Year\"]"},
"from": {"data": "source_0"},
"encode": {
"update": {
"interpolate": {"value": "monotone"},
"orient": {"value": "horizontal"},
"fill": {"value": "#4c78a8"},
"description": {
"signal": "\"Sum of Weight_in_lbs: \" + (format(datum[\"sum_Weight_in_lbs\"], \"\")) + \"; Year (year): \" + (timeFormat(datum[\"year_Year\"], timeUnitSpecifier([\"year\"], {\"year-month\":\"%b %Y \",\"year-month-date\":\"%b %d, %Y \"})))"
},
"x": {"scale": "x", "field": "sum_Weight_in_lbs"},
"x2": {"scale": "x", "value": 0},
"y": {"scale": "y", "field": "year_Year"},
"defined": {
"signal": "isValid(datum[\"sum_Weight_in_lbs\"]) && isFinite(+datum[\"sum_Weight_in_lbs\"]) && isValid(datum[\"year_Year\"]) && isFinite(+datum[\"year_Year\"])"
}
}
}
}
],
"scales": [
{
"name": "x",
"type": "linear",
"domain": {"data": "source_0", "field": "sum_Weight_in_lbs"},
"range": [0, {"signal": "width"}],
"nice": true,
"zero": true
},
{
"name": "y",
"type": "time",
"domain": {"data": "source_0", "field": "year_Year"},
"range": [{"signal": "height"}, 0]
}
],
"axes": [
{
"scale": "x",
"orient": "bottom",
"gridScale": "y",
"grid": true,
"tickCount": {"signal": "ceil(width/40)"},
"domain": false,
"labels": false,
"aria": false,
"maxExtent": 0,
"minExtent": 0,
"ticks": false,
"zindex": 0
},
{
"scale": "y",
"orient": "left",
"gridScale": "x",
"grid": true,
"tickCount": {"signal": "ceil(height/40)"},
"tickMinStep": {
"signal": "datetime(2002, 0, 1, 0, 0, 0, 0) - datetime(2001, 0, 1, 0, 0, 0, 0)"
},
"domain": false,
"labels": false,
"aria": false,
"maxExtent": 0,
"minExtent": 0,
"ticks": false,
"zindex": 0
},
{
"scale": "x",
"orient": "bottom",
"grid": false,
"title": "Sum of Weight_in_lbs",
"labelFlush": true,
"labelOverlap": true,
"tickCount": {"signal": "ceil(width/40)"},
"zindex": 0
},
{
"scale": "y",
"orient": "left",
"grid": false,
"title": "Year (year)",
"format": {
"signal": "timeUnitSpecifier([\"year\"], {\"year-month\":\"%b %Y \",\"year-month-date\":\"%b %d, %Y \"})"
},
"labelOverlap": true,
"tickCount": {"signal": "ceil(height/40)"},
"tickMinStep": {
"signal": "datetime(2002, 0, 1, 0, 0, 0, 0) - datetime(2001, 0, 1, 0, 0, 0, 0)"
},
"zindex": 0
}
],
"config": {"style": {"tick": {"discreteBandSize": {"band": 0.75}}}}
}