Telecharger les MNX dans une zone d'interet — download

Selectionne les dalles MNX qui intersectent une region d'interet. Propose de les telecharger si elles ne sont pas deja dans un repertoire indique par l'utilisateur

Utilisation

download_mnx(
  ta,
  roi = NULL,
  folder = NULL,
  buffer = TRUE,
  prompt = TRUE,
  compress = TRUE,
  workers = 2
)

Arguments

ta: sf object. Tiles available from IGN (output of load_classified_ta
roi: sf object. Region of interest
folder: text. Local folder for files. Already downloaded files should not have their names changed.
buffer: boolean. Should tiles adjacent to tiles intersecting the roi be downloaded to avoid edge artefacts in further processing ?
prompt: boolean. Should the user be prompted before plotting and downloading ?
compress: boolean. Should files be compressed (LZW with predictor = 3) ?
workers: integer. Number of cores to use in future::plan(future::multisession(workers = ))

Valeur de retour

The input object with an additional attribute containing a text string indicating the link to the local file.

Voir également

load_classified_ta to download available tiles,

Exemples

if (FALSE) { # \dontrun{
ta <- load_classified_ta()
download_files(ta, folder = "./LidarHD/data/MNT/")
} # }