Geo Map.

PRO

Show geographic locations and magnitudes on a map.

<sy-geo-map>Installation and integration API reference

LIVE EXAMPLE

Asian hubs

Match the page theme

Interact with the chart to see selection and range-change results here.

OptionsChanges are reflected in the preview and code.

Appearance and style8

Map projectionNode radiusNode labelsRegion labelsRegion opacity

Show region valuesMap legendLock map navigation

Legend and interaction13

Animation duration (ms)Animation easingAnimation triggerTooltip modeTooltip triggerSimultaneous tooltipsCrosshair directionDrag to zoom

Title and dimensions3

Chart titleChart subtitleChart height (px)

Show cities and their magnitudes using longitude and latitude. All values are sample data.

View code

Current preview

<div id="chart-container" style="width: 100%; min-width: 0;"></div>

<script type="module">
  import { defineCustomElement as define0 } from '@syidax/advanced-pro/components/sy-geo-map.js';
  define0();

  // Pro: complete registerLicense at app startup using your issued certificate.
  // The website preview certificate is not for use in customer apps.
  const specs = [
    {
      "id": "example-chart",
      "tag": "sy-geo-map",
      "props": {
        "data": [
          {
            "id": "seoul",
            "label": "Seoul",
            "longitude": 126.98,
            "latitude": 37.57,
            "value": 80
          },
          {
            "id": "tokyo",
            "label": "Tokyo",
            "longitude": 139.69,
            "latitude": 35.68,
            "value": 65
          },
          {
            "id": "taipei",
            "label": "Taipei",
            "longitude": 121.56,
            "latitude": 25.03,
            "value": 45
          },
          {
            "id": "singapore",
            "label": "Singapore",
            "longitude": 103.82,
            "latitude": 1.35,
            "value": 55
          }
        ],
        "mapRegion": "asia",
        "mapBackground": "natural-earth",
        "projection": "mercator",
        "nodeLabels": "show",
        "width": 640,
        "height": 360,
        "brandPosition": "bottom-right",
        "brandLogo": ""
      }
    }
  ];
  const container = document.querySelector('#chart-container');
  const elements = specs.map(({ tag, id, props }) => {
    const element = document.createElement(tag);
    element.id = id;
    Object.assign(element, props);
    element.setAttribute('aria-label', 'geo-map example chart');
    return element;
  });
  container.replaceChildren(...elements);
  const chart = elements.at(-1);
  const onEvent = event => {
    console.log('nodeClick', event.detail);
  };
  chart.addEventListener('nodeClick', onEvent);
  const observer = new ResizeObserver(([entry]) => {
    const width = Math.max(160, Math.floor(entry.contentRect.width));
    elements.forEach(element => { element.width = width; });
  });
  observer.observe(container);

  // In an SPA, call this function when the view is disposed.
  function disposeChart() {
    observer.disconnect();
    chart.removeEventListener('nodeClick', onEvent);
    container.replaceChildren();
  }
</script>

Usage and data

Explore the distribution of cities, facilities, or observation sites.

Check the longitude and latitude order. Projection affects the representation of distances and areas.

Data contract

Property	Input format
`data`	An array of { longitude, latitude, value?, label? }.
`projection`	How geographic coordinates project onto the screen.
`mapRegion`	The region shown initially.

Updating data

Assign a new array or object to the property instead of mutating values inside an array. Chart events provide selection results through event.detail. When disposing of the view, clean up ResizeObserver and event listeners registered by your app.

Feature examples

Try 44 interactive feature examples and inspect their code. Select “Edit in preview” to combine more options in the settings panel above.