Map

Use a map when the place is the point: countries coloured by a value, or points at known coordinates.

Source

```chart
type: map
title: Broadband reaches nine in ten households in much of Europe
subtitle: Share of households; darker is higher
data:
  inline:
    - {country: Czechia, share: 91}
    - {country: Germany, share: 92}
    - {country: France, share: 86}
    - {country: Poland, share: 88}
    - {country: Spain, share: 96}
    - {country: Italy, share: 85}
    - {country: Norway, share: 98}
    - {country: Turkey, share: 90}
    - {country: Egypt, share: 74}
    - {country: India, share: 52}
encoding: {region: country, y: share}
axes:
  y: {label: Households with broadband, unit: "%"}
```

Fields that matter

• type: map with encoding.region for a country name or ISO code and encoding.y for the value that colours it
• Or encoding.lat and encoding.lon for points, with encoding.size for dot size and encoding.color for groups; a map needs one of the two
• A region the data does not name stays plain, and a name that matches no boundary is reported
• style.projection is natural-earth (default), equal-earth, mercator or equirectangular
• axes.y sets label, format and unit for the value; encoding.facet makes one panel per value; style.ratio sets the width to height ratio

Interactions

• Hover or focus a country or a point to read its value; the pointer picks the shape it is inside.
• Click a legend entry to toggle a group when points are coloured by group.
• Open the Table view, Download PNG or CSV, or Expand the chart.