mapedge: Function to quickly draft the edge of the equirectangular...

In rgplates: R Interface for the GPlates Web Service and Desktop Application

Function to quickly draft the edge of the equirectangular projection

Description

Function to plot the edge of a map with different projections.

Usage

mapedge(
  x = 360,
  y = 180,
  xmin = -180,
  xmax = 180,
  ymin = -90,
  ymax = 90,
  out = "sf"
)

Arguments

x	(numeric) Number of segments in the x (longitude) dimension.
y	(numeric) Number of segments in the y (latitude) dimension.
xmin	(numeric) Minimum value of x (longitude).
xmax	(numeric) Minimum value of x (longitude).
ymin	(numeric) Maximum value of y (latitude).
ymax	(numeric) Maximum value of y (latitude).
out	(character) Output format, either "sf" or "sp". The default "sf" returns simple feature geometries, "sp" returns SpatialPolygons from the sp package.

Value

An sfc-, or SpatialPolygons-class object.

Examples

# requires rgdal
edge <- mapedge()
molledge <- st_transform(edge, "ESRI:54009")
plot(molledge) 

rgplates documentation built on Sept. 8, 2023, 5:26 p.m.