Vega-Lite Donut Chart with Labels / Vega

Data Visualization Languages & Tools

Public

Edited

May 6, 2023

3 forks

6 stars

chart = {

const arc = vl

.markArc({ innerRadius: width / 13, padAngle: 0.01 })

.encode(

vl.order().count().sort("descending"), // Sort the layers

vl.theta().count().stack(true), // required for placing the labels

vl.color().fieldN(splitBy).scale({ scheme: "pastel1" })

);

const textConfig = { radius: width / 10, align: "center", dy: 7 };

const textName = arc

.markText(textConfig)

.encode(

vl.text().count(),

vl.detail().fieldN(splitBy), // Without this we will get only the totals

vl.color().value("Black")

);

const textValue = textName

.markText({ ...textConfig, dy: -7, fontWeight: "bold", fontSize: 14 })

.encode(vl.text().fieldN(splitBy));

return vl

.layer(arc, textName, textValue)

.width(width/2)

.data(data)

.render();

}

splitBy = "Species"

data = (await require("vega-datasets@2"))["penguins.json"]()

import{vl} from "@vega/vega-lite-api"

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