plot: PLot latitude and longitude

In Schuch666/hackWRF: Functions to Work with WRF, NetCDF and Model Evaluation

PLot latitude and longitude

Description

function to plot cool latitude and longitude. labels for latitude range from 180ºW to 0 to 180ºE and longitude from 90ºS to 0 to 90ºN.

Usage

longitude(int = 10, side = 1, lmin = -180, lmax = 180, ...)

latitude(int = 10, side = 2, lmin = -90, lmax = 90, ...)

longitude_proj(r, int = 10, side = 1, lmin = -180, lmax = 180, ...)

latitude_proj(r, int = 10, side = 2, lmin = -80, lmax = 80, ...)

grid_proj(
  r,
  int = 10,
  lty = 3,
  col = "#666666",
  lat_min = -80,
  lat_max = 80,
  lon_min = -160,
  lon_max = 160,
  ...
)

Arguments

int	interval in degrees
side	side to plot, see axis
lmin	minimum lat or lon
lmax	maximum lat or lon
...	additional arguments passed to axis function
r	a raster object (to projected versions)
lty	line type for grid_projected (default is 3)
col	line color for grid_projected (default is gray)
lat_min	for rid_projected (default is -80)
lat_max	for rid_projected (default is 30)
lon_min	for rid_projected (default is -160)
lon_max	for rid_projected (default is 160)

Functions

• longitude(): nice latitude axis

• latitude(): nice longitude axis

• longitude_proj(): projected longitude axis

• latitude_proj(): projected latitude axis

• grid_proj(): grid (lalitude and longitude) in a different projection

Examples

library(raster)
br <- shapefile(paste0(system.file("extdata",package="hackWRF"),"/BR_states.shp"),verbose=FALSE)
plot(br)
box()
latitude()
longitude()
grid()

Schuch666/hackWRF documentation built on June 9, 2025, 1:46 p.m.