Contents:
Utilities for masking, contour tracing, and geocontour construction with gridded geographic data
small()
large()
full()
masksearch()
contourtrace()
cdim()
cboundary()
cmask()
ccontour()
cgeocontour()
square()
moore()
moore_imp()
pavlidis()
pavlidis_imp()
MSBF()
ISBF()
TSR()
findstart()
parsestart()
setstop()
clean()
fancysearch()
build()
spacing()
lonlens()
latlens()
lonlen()
latlen()
areas()
clonrng()
clatdir()
switchlon()
switchind()
center()
center2()
nodes()
nodes2()
area()
bbox()
edge()
vertex()
neighbors()
conn()
plot()
save()