The purpose of this is to permit plotting with xtype="spine"
, so that
the section plot will display the distance of stations projected
onto the spine.
addSpine(section, spine, debug = getOption("oceDebug"))
a section object.
either a list or a data frame, containing numeric items named
longitude
and latitude
, defining a path along the spine.
an integer specifying whether debugging information is
to be printed during the processing. This is a general parameter that
is used by many oce
functions. Generally, setting debug=0
turns off the printing, while higher values suggest that more information
be printed. If one function calls another, it usually reduces the value of
debug
first, so that a user can often obtain deeper debugging
by specifying higher debug
values.
A section object with a spine added.
library(oce)
data(section)
eastern <- subset(section, longitude < (-65))
spine <- list(
longitude = c(-74.5, -69.2, -55),
latitude = c(38.6, 36.25, 36.25)
)
easternWithSpine <- addSpine(eastern, spine)
# plot(easternWithSpine, which="map")
# plot(easternWithSpine, xtype="distance", which="temperature")
# plot(easternWithSpine, xtype="spine", which="temperature")