Publish per-model PMTiles from an indexed GeoPackage — publish_pmtiles_from

Like publish_pmtiles_models() but reads each model's features on demand from an indexed GeoPackage (SELECT ... WHERE mdl_key = ...) instead of a pre-loaded sf — so a multi-GB source (full-resolution IUCN ranges are ~7 GB) never loads into memory at once, and the per-model query is an index hit. Parallel (furrr) + resumable.

Usage

publish_pmtiles_from_gpkg(
  gpkg,
  layer,
  keys,
  dir_out,
  workers = NULL,
  redo = FALSE,
  minzoom = 0,
  maxzoom = 6,
  simplification = 10
)

Arguments

gpkg: path to a GeoPackage whose layer has a character mdl_key column (index it on mdl_key for speed: CREATE INDEX ... ON layer(mdl_key))
layer: gpkg layer name (also the tile source_layer)
keys: character mdl_keys to publish (each -> one file)
dir_out: output directory (created); one {slug(sp_id)}.pmtiles per key
workers, redo, minzoom, maxzoom, simplification: as in publish_pmtiles_models()

Value

a tibble (mdl_key, sp_id, file, mb), one row per model built or found