This topic describes the ST_GridRing function. This function obtains all grids whose distance from the central H3 grid is equal to the specified distance k.
Syntax
setof h3grid ST_GridRing(h3grid start, integer k);Parameters
Parameter | Description |
origin | The central H3 grid. |
k | The distance from the central H3 grid. |
Examples
SELECT ST_GridRing(st_h3fromlatlng(25.1,123.1),5);
st_griddisk
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