World Map Usage and Data Format
The following table lists the primary fields used in the
World Map widget.
| Field | Type | Description |
|---|---|---|
| lat | number | A field containing the latitude to use for geohash bucketing. |
| lon | number | A field containing the longitude to use for geohash bucketing. |
| geohash | string | OPTIONAL. A base32 geohash string to calculate latitude and longitude. |
| precision | number | The precision to use in the calculation of the embedded geohash. Usually 4 is fine for a full globe, 12 is for a small area of zoom. |
| magnitude | aggregate | A function used to calculate the magnitude (weight) of each bucket. This value is used to determine the size or opacity of the world map markers. |
If both geohash and lat and lon are specified, geohash is ignored.
The World Map widget:
Requires specific input format for geographical data as shown in the table
Utilizes the
worldMap()function to properly format and bucket locations using geohashingCan accept any input that matches the required format shown in the table, though geohashing is recommended for optimal visualization.