oce (version 1.0-1)

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, usrLonLat, 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')
# }
# NOT RUN {
# }