35.45 SDO_UTIL.H3_IS_PENTAGON

Format

SDO_UTIL.H3_IS_PENTAGON(
  h3_key IN RAW
) RETURN BOOLEAN;

Description

Returns a boolean value that determines whether a given cell is a pentagon (instead of a hexagon) or not.

Parameters

h3_key

An H3 cell to query.

Usage Notes

At each H3 resolution, there are exactly 12 pentagons (centered at the vertices of the icosahedron used for the H3 projection) and all other cells are hexagons. All 12 pentagons at any given H3 resolution are identical in size. The centers of the 12 pentagons are the same at all resolutions, and all the pentagon centers are in the ocean.

Examples

The following examples call SDO_UTIL.H3_IS_PENTAGON to determine if the given cell is a pentagon or not.

SQL> SELECT SDO_UTIL.H3_IS_PENTAGON('08928342E20FFFFF') pentagon;

PENTAGON
-----------
FALSE

SQL> SELECT SDO_UTIL.H3_IS_PENTAGON('08FD600000000000') pentagon;

PENTAGON
-----------
TRUE