oce (version 1.8-3)

mapText: Add Text to a Map

Description

Plot text on an existing map, by analogy to text().

Usage

mapText(longitude, latitude, labels, ...)

Arguments

longitude

numeric vector of longitudes of text to be plotted.

latitude

numeric vector of latitudes of text to be plotted.

labels

vector of labels of text to be plotted.

...

optional arguments passed to text(), e.g. adj, pos, etc.

Author

Dan Kelley

See Also

A map must first have been created with mapPlot().

Other functions related to maps: formatPosition(), lonlat2map(), lonlat2utm(), map2lonlat(), mapArrows(), mapAxis(), mapContour(), mapCoordinateSystem(), mapDirectionField(), mapGrid(), mapImage(), mapLines(), mapLocator(), mapLongitudeLatitudeXY(), mapPlot(), mapPoints(), mapPolygon(), mapScalebar(), mapTissot(), oceCRS(), oceProject(), shiftLongitude(), usrLonLat(), utm2lonlat()

Examples

# \donttest{
library(oce)
data(coastlineWorld)
longitude <- coastlineWorld[["longitude"]]
latitude <- coastlineWorld[["latitude"]]
mapPlot(longitude, latitude,
    type = "l", grid = 5,
    longitudelim = c(-70, -50), latitudelim = c(45, 50),
    projection = "+proj=merc"
)
lon <- -63.5744 # Halifax
lat <- 44.6479
mapPoints(lon, lat, pch = 20, col = "red")
mapText(lon, lat, "Halifax", col = "red", pos = 1, offset = 1)
# }