Coerces a sequence of longitudes and latitudes into a coastline dataset.
This may be used when read.coastline()
cannot read a file, or
when the data have been manipulated.
as.coastline(longitude, latitude, fillable = FALSE)
a coastline object.
the longitude in decimal degrees, positive east of
Greenwich, or a data frame with columns named latitude
and
longitude
, in which case these values are extracted from the data
frame and the second argument is ignored.
the latitude in decimal degrees, positive north of the Equator.
boolean indicating whether the coastline can be drawn as a filled polygon.
Dan Kelley
Other things related to coastline data:
[[,coastline-method
,
[[<-,coastline-method
,
coastline-class
,
coastlineBest()
,
coastlineCut()
,
coastlineWorld
,
download.coastline()
,
plot,coastline-method
,
read.coastline.openstreetmap()
,
read.coastline.shapefile()
,
subset,coastline-method
,
summary,coastline-method