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svgMap

svgMap is a JavaScript library that lets you easily create an interactable world map comparing customizable data for each country.

Live demo: https://stephanwagner.me/create-world-map-charts-with-svgmap#svgMapDemoGDP


Install

ES6

npm install --save svgmap
import svgMap from 'svgmap';
import 'svgmap/dist/svg-map.css';

CDN

<script src="https://cdn.jsdelivr.net/npm/svgmap@v2.19.2/dist/svg-map.umd.min.js"></script>
<link href="https://cdn.jsdelivr.net/npm/svgmap@v2.19.2/dist/svg-map.min.css" rel="stylesheet">

Usage

Create an HTML element where to show your map, then use JavaScript to initialize:

<div id="svgMap"></div>
new svgMap({
  targetElementID: 'svgMap',
  data: {
    data: {
      gdp: {
        name: 'GDP per capita',
        format: '{0} USD',
        thousandSeparator: ',',
        thresholdMax: 50000,
        thresholdMin: 1000
      },
      change: {
        name: 'Change to year before',
        format: '{0} %'
      }
    },
    applyData: 'gdp',
    values: {
      AF: { gdp: 587, change: 4.73 },
      AL: { gdp: 4583, change: 11.09 },
      DZ: { gdp: 4293, change: 10.01 }
      // ...
    }
  }
});

This example code creates a world map with the GDP per capita and its change to the previous year: https://stephanwagner.me/create-world-map-charts-with-svgmap#svgMapDemoGDP


Options

You can pass the following options into svgMap:

Option Type Default
targetElementID string The ID of the element where the world map will render (Required)
allowInteraction boolean true Allow users to zoom and pan around the map
minZoom float 1 Minimal zoom level
maxZoom float 25 Maximal zoom level
initialZoom float 1.06 Initial zoom level
initialPan object Initial pan on x and y axis (e.g. { x: 30, y: 60 })
showContinentSelector boolean false Show continent selector
zoomScaleSensitivity float 0.2 Sensitivity when zooming
showZoomReset boolean false Show zoom reset button
resetZoomOnResize boolean false Reset map zoom on resize
zoomButtonsPosition string 'bottomLeft' Position of the zoom buttons. Possible values: 'topLeft', 'topRight', 'bottomLeft', 'bottomRight'
mouseWheelZoomEnabled boolean true Enables or disables zooming with the scroll wheel
mouseWheelZoomWithKey boolean false Allow zooming only when one of the following keys is pressed: SHIFT, CONTROL, ALT, COMMAND, OPTION
mouseWheelKeyMessage string 'Press the [ALT] key to zoom' The message when trying to scroll without a key
mouseWheelKeyMessageMac string Press the [COMMAND] key to zoom The message when trying to scroll without a key on MacOS
colorMax string '#CC0033' Color for highest value. Accepts CSS vars, color names, rgb or hex values.
colorMin string '#FFE5D9' Color for lowest value. Accepts CSS vars, color names, rgb or hex values.
colorNoData string '#E2E2E2' Color when there is no data. Accepts CSS vars, color names, rgb or hex values.
flagType 'image', 'emoji' 'image' The type of the flag in the tooltip
ratioType 'linear', 'log', function 'linear' Ratio type for the color scale
flagURL string The URL to the flags when using flag type 'image'. The placeholder {0} will get replaced with the lowercase ISO 3166-1 alpha-2 country code. Default: 'https://cdn.jsdelivr.net/gh/hjnilsson/country-flags@latest/svg/{0}.svg'
hideFlag boolean false Hide the flag in tooltips
noDataText string 'No data available' The text to be shown when no data is present
touchLink boolean false Set to true to open the link (see data.values.link) on mobile devices, by default the tooltip will be shown
showTooltips boolean true When false, disables hover and touch-following tooltips only. Persistent on-map labels from persistentTooltips are unaffected. On touch devices, countries with a link open it on the first tap instead of using the two-tap pattern (first tap preview, second tap navigate).
tooltipTrigger 'hover', 'click' 'hover' How the floating tooltip opens with the mouse: 'hover' opens on mouseenter/mouseleave.'click' opens on primary click and closes when clicking outside the map countries or tooltip. Only applies when showTooltips is true.
persistentTooltips false, array, function false Persistent tooltips fixed on the map when it loads: an array of country IDs, or a function (function (countryID, countryValues) { … }) to decide per country. Independent of showTooltips. Best used with showTooltips: false or tooltipTrigger: 'click'.
staticPins false, array, function false Static pins on the map at load time: an array of ISO 3166-1 alpha-2 country IDs (e.g. ['DE', 'FR']), or a function (function (countryID, countryValues) { … }) to decide per country. Pins are placed at the geographic center of each country (largest landmass). Independent of showTooltips.
pinColor string '#000000' Default fill color for circle pins. Accepts CSS vars, color names, rgb or hex values. Can be overridden per country via data.values[id].pinColor.
pinStrokeColor string '#ffffff' Default stroke color for circle pins. Can be overridden per country via data.values[id].pinStrokeColor.
pinStrokeWidth number 1 Default stroke width for circle pins, in screen pixels (non-scaling stroke). Can be overridden per country via data.values[id].pinStrokeWidth. Set to 0 for no stroke.
pinSize number 8 Default radius for circle pins, in SVG units (viewBox is 2000 × 1001). Can be overridden per country via data.values[id].pinSize.
pinImage string Image URL used as a pin instead of the default circle. Can be overridden per country via data.values[id].pinImage.
pinImageWidth number 20 Width of the pin image in SVG units. Can be overridden per country via data.values[id].pinImageWidth.
pinImageHeight number 20 Height of the pin image in SVG units. Can be overridden per country via data.values[id].pinImageHeight.
pinOffsetX number 0 Horizontal offset from the pin position, in SVG units. Added after auto placement or pinX/pinY. Can be overridden per country via data.values[id].pinOffsetX.
pinOffsetY number 0 Vertical offset from the pin position, in SVG units. Added after auto placement or pinX/pinY. Can be overridden per country via data.values[id].pinOffsetY.
onGetPin function Custom pin element. Signature: function (countryID, countryValues) { return svgElement; }. Return an SVG element (e.g. <g>, <path>) to use instead of the default circle or image pin. The library positions it at the pin coordinates via transform. Return null to fall back to the default pin.
onGetTooltip function Called when a tooltip is created to custimize the tooltip content (function (tooltipDiv, countryID, countryValues) { return 'Custom HTML'; })
onCountryClick function Called when the user clicks a country (primary button, pointer released without dragging). Signature: function (countryID, event) { … }. Use this for custom actions instead of or in addition to data.values.link. Return false to skip opening the URL when the country has a link. On touch devices with a link, the callback runs when the tap would navigate (not on the first tap that only shows the tooltip). Countries show a pointer cursor while this option is set.
countries object Additional options specific to countries:
   ↳ EH boolean true When set to false, Western Sahara (EH) will be combined with Morocco (MA)
data object The chart data to use for coloring and to show in the tooltip. Use a unique data-id as key and provide following options as value:
   ↳ name string The name of the data, it will be shown in the tooltip
   ↳ format string The format for the data value, {0} will be replaced with the actual value
   ↳ thousandSeparator string ',' The character to use as thousand separator
   ↳ thresholdMax number null Maximal value to use for coloring calculations
   ↳ thresholdMin number 0 Minimum value to use for coloring calculations
   ↳ applyData string The ID (key) of the data that will be used for coloring
   ↳ values object An object with the ISO 3166-1 alpha-2 country code as key and the chart data for each country as value
        ↳ color string Forces a color for this country
        ↳ link string An URL to redirect to when clicking the country
        ↳ linkTarget string The target of the link. By default the link will be opened in the same tab. Use '_blank' to open the link in a new tab
        ↳ pinColor string Pin fill color for this country (circle pins only)
        ↳ pinStrokeColor string Pin stroke color for this country (circle pins only)
        ↳ pinStrokeWidth number Pin stroke width for this country, in screen pixels (circle pins only)
        ↳ pinSize number Pin radius for this country (circle pins only)
        ↳ pinX number Pin X position in SVG units; use with pinY to override auto placement
        ↳ pinY number Pin Y position in SVG units; use with pinX to override auto placement
        ↳ pinOffsetX number Horizontal offset from the pin position, in SVG units (after auto placement or pinX/pinY)
        ↳ pinOffsetY number Vertical offset from the pin position, in SVG units (after auto placement or pinX/pinY)
        ↳ pinImage string Image URL used as the pin for this country
        ↳ pinImageWidth number Width of the pin image for this country
        ↳ pinImageHeight number Height of the pin image for this country
countryNames object An object with the ISO 3166-1 alpha-2 country code as key and the country name as value

Styling

You can overwrite the following scss variables to customize the style of the map:

Variable Default
$textColor #111
$textColorLight #777
$oceanColor #d9ecff
$mapActiveStrokeColor #333
$mapActiveStrokeWidth 1.5
$blockZoomNoticeColor #fff
$blockZoomNoticeBackgroundColor rgba(0, 0, 0, 0.8)
$mapControlsColor #fff
$mapControlsBackgroundColor #fff
$mapControlsIconColor #ccc
$mapControlsIconColorActive #000
$mapControlsDisabledColor #eee
$mapControlsBoxShadow 0 0 0 2px rgba(0, 0, 0, 0.1)
$mapTooltipColor #111
$mapTooltipBackgroundColor #fff
$mapTooltipFlagBackgroundColor rgba(0, 0, 0, 0.15)
$mapTooltipBoxShadowColor rgba(0, 0, 0, 0.2)
$continentControlsBoxShadow 0 0 0 2px rgba(0, 0, 0, 0.1)
$countryStrokeColor #fff

Localize

Use the option countryNames to translate country names. In the folder demo/html/local or demo/es6/local you can find translations in following languages: Arabic, Chinese, English, French, German, Hindi, Portuguese, Russian, Spanish, Urdu.

To create your own translations, check out country-list by Saša Stamenković.


Attribution

If you need more detailed maps or more options for your data, there is a great open source project called datawrapper out there, with a lot more power than svgMap.

svgMap uses svg-pan-zoom by Anders Riutta (now maintained by bumpu).

The country flag images are from country-flags by Hampus Joakim Borgos.

Most data in the demos was taken from Wikipedia.