These functions are simple wrappers around
scale_x_continuous
and
scale_y_continuous
with
helpful defaults for plotting longitude, latitude and pressure levels.
scale_x_longitude( name = "", ticks = 30, breaks = seq(180, 360, by = ticks), expand = c(0, 0), labels = LonLabel, trans = "identity", ... ) scale_y_longitude( name = "", ticks = 60, breaks = seq(180, 360, by = ticks), expand = c(0, 0), labels = LonLabel, trans = "identity", ... ) scale_x_latitude( name = "", ticks = 30, breaks = seq(90, 90, by = ticks), expand = c(0, 0), labels = LatLabel, ... ) scale_y_latitude( name = "", ticks = 30, breaks = seq(90, 90, by = ticks), expand = c(0, 0), labels = LatLabel, ... ) scale_x_level(name = "", expand = c(0, 0), trans = "sa_height", ...) scale_y_level(name = "", expand = c(0, 0), trans = "sa_height", ...)
name  The name of the scale. Used as the axis or legend title. If


ticks  spacing between breaks 
breaks  One of:

expand  For position scales, a vector of range expansion constants used to add some
padding around the data to ensure that they are placed some distance
away from the axes. Use the convenience function 
labels  One of: 
trans  For continuous scales, the name of a transformation object or the object itself. Builtin transformations include "asn", "atanh", "boxcox", "date", "exp", "hms", "identity", "log", "log10", "log1p", "log2", "logit", "modulus", "probability", "probit", "pseudo_log", "reciprocal", "reverse", "sqrt" and "time". A transformation object bundles together a transform, its inverse,
and methods for generating breaks and labels. Transformation objects
are defined in the scales package, and are called 
...  Other arguments passed on to 
Other ggplot2 helpers:
DivideTimeseries()
,
MakeBreaks()
,
WrapCircular()
,
geom_arrow()
,
geom_contour2()
,
geom_contour_fill()
,
geom_label_contour()
,
geom_relief()
,
geom_streamline()
,
guide_colourstrip()
,
map_labels
,
reverselog_trans()
,
scale_divergent
,
stat_na()
,
stat_subset()
data(geopotential) library(ggplot2) ggplot(geopotential[date == date[1]], aes(lon, lat, z = gh)) + geom_contour() + scale_x_longitude() + scale_y_latitude()