Locate points on an existing map.
This uses map2lonlat() to infer the location in
geographical space, so it suffers the same
limitations as that function.
Arguments
- n
- number of points to locate; see - locator().
- type
- type of connector for the points; see - locator().
- ...
- extra arguments passed to - locator()(and either- mapPoints()or- mapLines(), if appropriate) if- typeis not- 'n'.
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(),
mapLongitudeLatitudeXY(),
mapPlot(),
mapPoints(),
mapPolygon(),
mapScalebar(),
mapText(),
mapTissot(),
oceCRS(),
oceProject(),
shiftLongitude(),
usrLonLat(),
utm2lonlat()