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Maps

World Map

type: 'map'

Choropleth world map. Supply topology via chart.map (GeoJSON or TopoJSON) and join your data to features with joinBy.

Edit the JSON on the right and press Run (or ⌘/Ctrl + Enter) — data, titles, categories and colors all update live.

Live
World Map
Edit · JSON

Data format

{ ADM0_A3: string, value: number } + chart.map (GeoJSON or TopoJSON)

Data shape

The JSON you pass inside the chart — drop it straight into your series.

data: [
  { ADM0_A3: 'BRA', value: 80 },
  { ADM0_A3: 'USA', value: 92 },
  { ADM0_A3: 'CHN', value: 88 }
]

Example

import KatuCharts from 'katucharts.js';

KatuCharts.chart('container', {
  chart: { type: 'map' },
  chart: { type: 'map', map: world },
  mapView: { projection: { name: 'EqualEarth' } },
  colorAxis: { min: 0, max: 100 },
  series: [{
    joinBy: 'ADM0_A3',
    data: [
      { ADM0_A3: 'BRA', value: 80 },
      { ADM0_A3: 'USA', value: 92 },
      { ADM0_A3: 'CHN', value: 88 }
    ]
  }]
});

Type-specific options

OptionDescription
chart.mapGeoJSON FeatureCollection or TopoJSON topology.
joinByFeature property ↔ data key (e.g. 'ADM0_A3').
mapView.projectionEqualEarth, WebMercator, Orthographic, Miller, …
colorAxisValue → region color.

Common errors

Why does my world map chart render as a line chart?
The chart type was not registered. KatuCharts logs "KatuCharts: unknown series type "<type>", falling back to line" and draws a line chart rather than throwing. Import the module the type belongs to — for example `import 'katucharts.js/bio';` — before creating the chart.
Why do I get "Cannot read properties of null (reading 'appendChild')"?
The container element does not exist when the chart is created. Create the chart after the element is in the DOM: in React that means inside useEffect, not during render.
Why is the chart rendering with zero height?
The container has no height. A div with no content collapses to zero. Give it a height in CSS, or pass `chart: { height: 400 }` in the options.

FAQ

How do I create a world map chart in JavaScript?
Install with `npm install katucharts.js`, then call KatuCharts.chart(container, { chart: { type: 'map' }, series: [...] }).
Why does my world map chart render as a line chart?
The chart type was not registered. KatuCharts logs "KatuCharts: unknown series type "<type>", falling back to line" and draws a line chart rather than throwing. Import the module the type belongs to — for example `import 'katucharts.js/bio';` — before creating the chart.
Why do I get "Cannot read properties of null (reading 'appendChild')"?
The container element does not exist when the chart is created. Create the chart after the element is in the DOM: in React that means inside useEffect, not during render.
Why is the chart rendering with zero height?
The container has no height. A div with no content collapses to zero. Give it a height in CSS, or pass `chart: { height: 400 }` in the options.
Common options (color, visible, marker, dataLabels, animation, events, zones…) apply to every type — see Configuration → series. See it rendered in the gallery.