Coerce Data into Topo Object
as.topo(longitude, latitude, z, filename = "")Either a vector of longitudes (in degrees east, and bounded by
-180 and 180), or a bathy object created by getNOAA.bathy() from
the marmap package; in the second case, all other arguments are ignored.
A vector of latitudes.
A matrix of heights (positive over land).
Name of data (used when called by read.topo.
An object of topo-class.
Other things related to topo data: [[,topo-method,
[[<-,topo-method,
download.topo,
plot,topo-method, read.topo,
subset,topo-method,
summary,topo-method,
topo-class, topoInterpolate,
topoWorld