set up matrices for selecting from eTOPO5
setplotmat(x, y)
x
: vector of lonsy
: vector of latsFor extracting from ETOPO5 and ETOPO2, used internally in DOTOPOMAPI
list(x=EX, y=WHY)
Jonathan M. Lees<jonathan.lees.edu>
DOTOPOMAPI
PLOC= list(LON=c(138.3152, 139.0214), LAT=c(35.09047, 35.57324)) ax = seq(from=PLOC$LON[1], to=PLOC$LON[2], length=10) ay = seq(from=PLOC$LAT[1], to=PLOC$LAT[2], length=10) G = setplotmat(ax,ay)
Useful links