Download RGB and/or IRC orthophotos for a Sequoia project

Downloads one or several orthophotos (RGB and/or IRC) from the IGN WMTS service for the parca layer of a Sequoia project.

Usage

seq_ortho(
  dirname = ".",
  type = c("irc", "rgb"),
  buffer = 200,
  zoom = 12,
  crs = 2154,
  overwrite = FALSE,
  verbose = TRUE
)

Arguments

dirname

character Directory where the matrice file is located. Defaults to the current working directory.

type

character One or several orthophoto types to download. Must be one or both of:

• "rgb" - true-color orthophoto

• "irc" - near-infrared orthophoto

buffer

numeric; Buffer around x (in meters) used to enlarge the download area.

zoom

integer between 0 and 21. The smaller the zoom level, the less precise the resolution(see happign::get_wmts())

crs

numeric or character; CRS of the returned raster (see happign::get_wmts())

overwrite

logical; If TRUE, file is overwritten.

verbose

logical; If TRUE, display messages.

Value

A named list of file paths written by seq_write(), one per type.

Details

This function is a convenience wrapper looping over get_ortho(), allowing the user to download both products in one call and automatically write them to the project directory using seq_write().

See also

get_ortho(), seq_write()