Function idFromST

idFromST(face: Face, s: number, t: number, level?: number): bigint
Create an S2CellID from an Face-S-T coordinate.
Parameters
- face: Face
  the face
- s: number
  s coordinate
- t: number
  t coordinate
- Optionallevel: number
  zoom level
Returns bigint
the S2CellID