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bar_column_fold.vg.json
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bar_column_fold.vg.json
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{
"$schema": "https://vega.github.io/schema/vega/v5.json",
"background": "white",
"padding": 5,
"data": [
{
"name": "source_0",
"values": [
{"country": "USA", "gold": 10, "silver": 20},
{"country": "Canada", "gold": 7, "silver": 26}
]
},
{
"name": "data_0",
"source": "source_0",
"transform": [
{"type": "fold", "fields": ["gold", "silver"], "as": ["key", "value"]},
{
"type": "stack",
"groupby": ["country", "key"],
"field": "value",
"sort": {"field": [], "order": []},
"as": ["value_start", "value_end"],
"offset": "zero"
},
{
"type": "filter",
"expr": "isValid(datum[\"value\"]) && isFinite(+datum[\"value\"])"
}
]
},
{
"name": "column_domain",
"source": "data_0",
"transform": [{"type": "aggregate", "groupby": ["key"]}]
}
],
"signals": [
{"name": "x_step", "value": 20},
{
"name": "child_width",
"update": "bandspace(domain('x').length, 0.1, 0.05) * x_step"
},
{"name": "child_height", "value": 200}
],
"layout": {
"padding": 20,
"offset": {"columnTitle": 10},
"columns": {"signal": "length(data('column_domain'))"},
"bounds": "full",
"align": "all"
},
"marks": [
{
"name": "column-title",
"type": "group",
"role": "column-title",
"title": {"text": "key", "style": "guide-title", "offset": 10}
},
{
"name": "row_header",
"type": "group",
"role": "row-header",
"encode": {"update": {"height": {"signal": "child_height"}}},
"axes": [
{
"scale": "y",
"orient": "left",
"grid": false,
"title": "value",
"labelOverlap": true,
"tickCount": {"signal": "ceil(child_height/40)"},
"zindex": 0
}
]
},
{
"name": "column_header",
"type": "group",
"role": "column-header",
"from": {"data": "column_domain"},
"sort": {"field": "datum[\"key\"]", "order": "ascending"},
"title": {
"text": {
"signal": "isValid(parent[\"key\"]) ? parent[\"key\"] : \"\"+parent[\"key\"]"
},
"style": "guide-label",
"frame": "group",
"offset": 10
},
"encode": {"update": {"width": {"signal": "child_width"}}}
},
{
"name": "column_footer",
"type": "group",
"role": "column-footer",
"from": {"data": "column_domain"},
"sort": {"field": "datum[\"key\"]", "order": "ascending"},
"encode": {"update": {"width": {"signal": "child_width"}}},
"axes": [
{
"scale": "x",
"orient": "bottom",
"grid": false,
"title": "country",
"labelAlign": "right",
"labelAngle": 270,
"labelBaseline": "middle",
"zindex": 0
}
]
},
{
"name": "cell",
"type": "group",
"style": "cell",
"from": {
"facet": {"name": "facet", "data": "data_0", "groupby": ["key"]}
},
"sort": {"field": ["datum[\"key\"]"], "order": ["ascending"]},
"encode": {
"update": {
"width": {"signal": "child_width"},
"height": {"signal": "child_height"}
}
},
"marks": [
{
"name": "child_marks",
"type": "rect",
"style": ["bar"],
"from": {"data": "facet"},
"encode": {
"update": {
"fill": {"scale": "color", "field": "country"},
"ariaRoleDescription": {"value": "bar"},
"description": {
"signal": "\"country: \" + (isValid(datum[\"country\"]) ? datum[\"country\"] : \"\"+datum[\"country\"]) + \"; value: \" + (format(datum[\"value\"], \"\"))"
},
"x": {"scale": "x", "field": "country"},
"width": {"signal": "max(0.25, bandwidth('x'))"},
"y": {"scale": "y", "field": "value_end"},
"y2": {"scale": "y", "field": "value_start"}
}
}
}
],
"axes": [
{
"scale": "y",
"orient": "left",
"gridScale": "x",
"grid": true,
"tickCount": {"signal": "ceil(child_height/40)"},
"domain": false,
"labels": false,
"aria": false,
"maxExtent": 0,
"minExtent": 0,
"ticks": false,
"zindex": 0
}
]
}
],
"scales": [
{
"name": "x",
"type": "band",
"domain": {"data": "data_0", "field": "country", "sort": true},
"range": {"step": {"signal": "x_step"}},
"paddingInner": 0.1,
"paddingOuter": 0.05
},
{
"name": "y",
"type": "linear",
"domain": {"data": "data_0", "fields": ["value_start", "value_end"]},
"range": [{"signal": "child_height"}, 0],
"nice": true,
"zero": true
},
{
"name": "color",
"type": "ordinal",
"domain": {"data": "data_0", "field": "country", "sort": true},
"range": "category"
}
],
"legends": [{"fill": "color", "symbolType": "square", "title": "country"}]
}