Documentation

geo.shapeData() function

geo.shapeData() is experimental and subject to change at any time. By using this function, you accept the risks of experimental functions.

geo.shapeData() renames existing latitude and longitude fields to lat and lon and adds an s2_cell_id tag.

Use geo.shapeData() to ensure geotemporal data meets the requirements of the Geo package:

  1. Rename existing latitude and longitude fields to lat and lon.
  2. Pivot fields into columns based on _time.
  3. Generate s2_cell_id tags using lat and lon values and a specified S2 cell level.
Function type signature
(
    <-tables: stream[{C with _field: string}],
    latField: A,
    level: int,
    lonField: B,
) => stream[{D with s2_cell_id: string, lon: float, lat: float}] where A: Equatable, B: Equatable
For more information, see Function type signatures.

Parameters

latField

(Required) Name of the existing field that contains the latitude value in decimal degrees (WGS 84).

Field is renamed to lat.

lonField

(Required) Name of the existing field that contains the longitude value in decimal degrees (WGS 84).

Field is renamed to lon.

level

(Required) S2 cell level to use when generating the S2 cell ID token.

tables

Input data. Default is piped-forward data (<-).


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