Stacked bar chart of quarterly revenue by region, in thousands of dollars. quarter, North America, Europe, Asia: Q1 820 410 260, Q2 860 430 300, Q3 905 455 340, Q4 950 470 395. x axis: quarter, y axis: revenue ($k).
Forma Visuals · Chart your data · Examples
Revenue by region stacked bar chart
Each quarter as one bar, split by region, so the reader sees the total and the mix at once.
For analysts · Vega-Lite
Try it in the consoleOpen the Vega-Lite editor
The playground allows illustrative values: any number your request does not give, Forma writes, and the answer says generated. Over the API and MCP, that request is refused unless it sets allow_generated_data.
01 The chart
Drawn from the code that came back.
valid · chart@cb3749b2 · 1 credit · 2026-10-07
Sent with the API's default setting, under which a chart is drawn only from values the request gives.
02 The request
In plain words, with its values.
03 What came back
A Vega-Lite spec.
Indented for reading.
{
"$schema": "https://vega.github.io/schema/vega-lite/v6.json",
"name": "quarterly_revenue",
"data": {
"values": [
{
"quarter": "Q1",
"region": "North America",
"revenue": 820
},
{
"quarter": "Q1",
"region": "Europe",
"revenue": 410
},
{
"quarter": "Q1",
"region": "Asia",
"revenue": 260
},
{
"quarter": "Q2",
"region": "North America",
"revenue": 860
},
{
"quarter": "Q2",
"region": "Europe",
"revenue": 430
},
{
"quarter": "Q2",
"region": "Asia",
"revenue": 300
},
{
"quarter": "Q3",
"region": "North America",
"revenue": 905
},
{
"quarter": "Q3",
"region": "Europe",
"revenue": 455
},
{
"quarter": "Q3",
"region": "Asia",
"revenue": 340
},
{
"quarter": "Q4",
"region": "North America",
"revenue": 950
},
{
"quarter": "Q4",
"region": "Europe",
"revenue": 470
},
{
"quarter": "Q4",
"region": "Asia",
"revenue": 395
}
]
},
"title": "Quarterly Revenue by Region",
"mark": "bar",
"encoding": {
"x": {
"field": "quarter",
"type": "nominal",
"axis": {
"title": "Quarter"
},
"sort": null
},
"y": {
"field": "revenue",
"type": "quantitative",
"axis": {
"title": "Revenue ($k)"
}
},
"color": {
"field": "region",
"type": "nominal",
"sort": null
}
}
}04 When to use it
Where this chart helps.
- Parts that add up to a whole, over a few periods.
- When the total matters as much as the split.
- To compare one region across quarters, grouped bars read better: a stacked segment is hard to compare unless it sits on the axis.