mapText | R Documentation |
Plot text on an existing map, by analogy to text()
.
mapText(longitude, latitude, labels, ...)
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 |
Dan Kelley
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()
,
shiftLongitude()
,
usrLonLat()
,
utm2lonlat()
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)
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