Convert a raster footprint to global-hex data — raster_to

raster_to_cell() covers the raster extent with DGGS cells, includes the neighboring edge cells needed for exact overlap, removes non-intersecting candidates, and extracts raster summaries. It returns no polygon geometry.

Usage

raster_to_cell(
  raster,
  resolution,
  grid = hex_grid(),
  fun = NULL,
  weights = "area",
  ...,
  max_cells = 100000L,
  progress = NULL,
  drop_na = TRUE
)

Arguments

raster: A terra::SpatRaster.
resolution: Target DGGS resolution.
grid: A modern grid from hex_grid().
fun, weights, ...: Extraction arguments passed to cell_extract().
max_cells: Hard maximum number of returned cells.
progress: Show progress where supported. NULL uses interactive defaults.
drop_na: Whether to remove cells for which every extracted raster summary is missing.

Value

A hex_data() object covering the raster extent.