addSpine: Add a spine to a section object

In dankelley/oce: Analysis of Oceanographic Data

Description

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.

Usage

addSpine(section, spine, debug = getOption("oceDebug"))

Arguments

section	a section object.
spine	either a list or a data frame, containing numeric items named longitude and latitude, defining a path along the spine.
debug	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.

Value

A section object with a spine added.

Author(s)

Dan Kelley

Examples

library(oce)
data(section)
sectionWest <- subset(section, longitude < -60)
spine <- list(longitude=c(-74.5, -69.2, -55), latitude=c(38.6, 36.25, 36.25))
sectionWithSpine <- addSpine(sectionWest, spine)
plot(sectionWithSpine, which="map")
plot(sectionWithSpine, xtype="distance", which="temperature")
plot(sectionWithSpine, xtype="spine", which="temperature")

dankelley/oce documentation built on April 8, 2021, 3:47 a.m.