oce (version 0.9-20)

mapLines: Add Lines to a Map

Description

Plot lines on an existing map

Usage

mapLines(longitude, latitude, greatCircle = FALSE, ...)

Arguments

longitude

vector of longitudes of points to be plotted, or an object from which longitude and latitude can be inferred (e.g. a coastline file, or the return value from mapLocator), in which case the following two arguments are ignored.

latitude

vector of latitudes of points to be plotted.

greatCircle

a logical value indicating whether to render line segments as great circles. (Ignored.)

...

optional arguments passed to lines.

Details

Adds lines to an existing map, by analogy to lines.

See Also

A map must first have been created with mapPlot.

Other functions related to maps: lonlat2map, lonlat2utm, map2lonlat, mapArrows, mapAxis, mapContour, mapDirectionField, mapGrid, mapImage, mapLocator, mapLongitudeLatitudeXY, mapPlot, mapPoints, mapPolygon, mapScalebar, mapText, mapTissot, oceCRS, shiftLongitude, utm2lonlat

Examples

## Not run: 
# library(oce)
# data(coastlineWorld)
# mapPlot(coastlineWorld, type='l',
#         longitudelim=c(-80,10), latitudelim=c(0,120),
#         projection="+proj=ortho +lon_0=-40")
# lon <- c(-63.5744, 0.1062)             # Halifax CA to London UK
# lat <- c(44.6479, 51.5171)
# mapPoints(lon, lat, col='red')
# mapLines(lon, lat, col='red')
# ## End(Not run)