geo_geohash_to_central_point()
Applies to: ✅ Azure Data Explorer ✅ Azure Monitor ✅ Microsoft Sentinel
Calculates the geospatial coordinates that represent the center of a geohash rectangular area.
Read more about geohash
.
Syntax
geo_geohash_to_central_point(
geohash)
Learn more about syntax conventions.
Parameters
Name | Type | Required | Description |
---|---|---|---|
geohash | string |
✔️ | A geohash value as it was calculated by geo_point_to_geohash(). The geohash string must be between 1 and 18 characters. |
Returns
The geospatial coordinate values in GeoJSON Format and of a dynamic data type. If the geohash is invalid, the query will produce a null result.
Note
The GeoJSON format specifies longitude first and latitude second.
Examples
print point = geo_geohash_to_central_point("sunny")
| extend coordinates = point.coordinates
| extend longitude = coordinates[0], latitude = coordinates[1]
Output
point | coordinates | longitude | latitude |
---|---|---|---|
{ "type": "Point", "coordinates": [ 42.47314453125, 23.70849609375 ] } |
[ 42.47314453125, 23.70849609375 ] |
42.47314453125 | 23.70849609375 |
The following example returns a null result because of the invalid geohash input.
print geohash = geo_geohash_to_central_point("a")
Output
geohash |
---|
Creating location deep-links for Bing Maps
You can use the geohash value to create a deep-link URL to Bing Maps by pointing to the geohash center point:
// Use string concatenation to create Bing Map deep-link URL from a geo-point
let point_to_map_url = (_point:dynamic, _title:string)
{
strcat('https://www.bing.com/maps?sp=point.', _point.coordinates[1] ,'_', _point.coordinates[0], '_', url_encode(_title))
};
// Convert geohash to center point, and then use 'point_to_map_url' to create Bing Map deep-link
let geohash_to_map_url = (_geohash:string, _title:string)
{
point_to_map_url(geo_geohash_to_central_point(_geohash), _title)
};
print geohash = 'sv8wzvy7'
| extend url = geohash_to_map_url(geohash, "You are here")
Output
geohash | url |
---|---|
sv8wzvy7 | https://www.bing.com/maps?sp=point.32.15620994567871_34.80245590209961_You+are+here |