Read a coastline File in Openstreetmap Format

Read coastline data stored in the openstreetmap format.

Usage

read.coastline.openstreetmap(
  file,
  lonlim = c(-180, 180),
  latlim = c(-90, 90),
  monitor = FALSE,
  encoding = NA,
  debug = getOption("oceDebug"),
  processingLog
)

Arguments

file

name of file containing coastline data (a file ending in .shp) or a zipfile that contains such a file, with a corresponding name. The second scheme is useful for files downloaded from the NaturalEarth website (see reference 2).

lonlim, latlim

numerical vectors specifying the west and east edges (and south and north edges) of a focus window. Coastline polygons that do not intersect the defined box are skipped, which can be useful in narrowing high-resolution world-scale data to a local application.

monitor

Logical indicating whether to print an indication of progress through the file.

encoding

ignored.

debug

set to TRUE to print information about the header, etc.

processingLog

if provided, the action item to be stored in the log. (Typically only provided for internal calls; the default that it provides is better for normal calls by a user.)

Value

a coastline object.

See also

Other things related to coastline data: [[,coastline-method, [[<-,coastline-method, as.coastline(), coastline-class, coastlineBest(), coastlineCut(), coastlineWorld, download.coastline(), plot,coastline-method, read.coastline.shapefile(), subset,coastline-method, summary,coastline-method

Author

Dan Kelley