sp: DMS-class – R documentation

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DMS-class

Class "DMS" for degree, minute, decimal second values

Description

The class provides a container for coordinates stored as degree, minute, decimal second values.

Objects from the Class

Objects can be created by calls of the form new("DMS", ...), converted from decimal degrees using dd2dms(), or converted from character strings using char2dms().

Slots

WS:: Object of class "logical" TRUE if input value negative
deg:: Object of class "numeric" degrees
min:: Object of class "numeric" minutes
sec:: Object of class "numeric" decimal seconds
NS:: Object of class "logical" TRUE if input value is a Northing

Methods

coerce: signature(from = "DMS", to = "numeric"): convert to decimal degrees
show: signature(object = "DMS"): print data values

Author(s)

Roger Bivand Roger.Bivand@nhh.no

Examples

data(state)
dd2dms(state.center$x)
dd2dms(state.center$y, NS=TRUE)
as.numeric(dd2dms(state.center$y))
as(dd2dms(state.center$y, NS=TRUE), "numeric")
as.numeric.DMS(dd2dms(state.center$y))
state.center$y

sp

Classes and Methods for Spatial Data

v1.4-5

GPL (>= 2)

Authors

Edzer Pebesma [aut, cre], Roger Bivand [aut], Barry Rowlingson [ctb], Virgilio Gomez-Rubio [ctb], Robert Hijmans [ctb], Michael Sumner [ctb], Don MacQueen [ctb], Jim Lemon [ctb], Finn Lindgren [ctb], Josh O'Brien [ctb], Joseph O'Rourke [ctb]

Initial release