Build batched point-location table from a study area

Extracts the lon-lat / elevation of every cell in elev that overlaps studyArea, tags each cell with its containing polygon's id value (column EcoID) and a numeric BatchID, and splits into a list of batch_size-row data frames suitable for chunked dispatch through get_clim_daily().

Usage

create_locations_df(elev, studyArea, id, batch_size = 1000)

Arguments

elev

SpatRaster of elevations in lon-lat CRS (typically from get_elevation_rast()).

studyArea

sf or SpatVector polygons object delineating the area of interest.

id

character. Name of the field in studyArea identifying ecoregions (e.g. "PolyID").

batch_size

integer. Maximum cells per batch. Default 1000.

Value

A list of data frames with columns ID, Longitude, Latitude, Elevation, EcoID, BatchID (one element per batch).

See also

get_elevation_rast(), get_clim_daily()