Periodic data can be defined only in one period and be extended to any arbitrary range.

WrapCircular(x, circular = "lon", wrap = c(0, 360))

Arguments

x

a data.frame

circular

the name of the circular dimension

wrap

the wrap for the data to be extended to

Value

A data.frame.

See also

Examples

library(ggplot2) library(data.table) data(geopotential) g <- ggplot(geopotential[date == date[1]], aes(lon, lat)) + geom_contour(aes(z = gh)) + coord_polar() + ylim(c(-90, -10)) # This plot has problems in lon = 0 g
# But using WrapCircular solves it. g %+% WrapCircular(geopotential[date == date[1]], "lon", c(0, 360))
#> Warning: 'WrapCircular' is deprecated, use ggperiodic::wrap instead.
# Aditionally data can be just repeatet to the right and # left ggplot(WrapCircular(geopotential[date == date[1]], wrap = c(-180, 360 + 180)), aes(lon, lat)) + geom_contour(aes(z = gh))
#> Warning: 'WrapCircular' is deprecated, use ggperiodic::wrap instead.
# The same behaviour is now implemented directly in geom_contour2 # and geom_contour_fill ggplot(geopotential[date == date[1]], aes(lon, lat)) + geom_contour2(aes(z = gh), xwrap = c(-180, 360 + 180))
#> Warning: 'xwrap' and 'ywrap' will be deprecated. Use ggperiodic::periodic insead.