geo.strictFilter() function
geo.strictFilter() is experimental and subject to change at any time.
geo.strictFilter() filters data by latitude and longitude in a specified region.
This filter is more strict than geo.gridFilter(), but for the best performance,
use geo.strictFilter() after geo.gridFilter().
Input rows must have lat and lon columns.
Function type signature
(<-tables: stream[{B with lon: D, lat: C}], region: A) => stream[{B with lon: D, lat: C}] where A: Record
For more information, see Function type signatures.
Parameters
region
(Required) Region containing the desired data points.
Specify record properties for the shape.
tables
Input data. Default is piped-forward data (<-).
Examples
Strictly filter data to a specified region
import "experimental/geo"
data
|> geo.strictFilter(region: {lat: 40.69335938, lon: -73.30078125, radius: 50.0})
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