gridaxes: Set up axes for a geoplot

In geo: Draw and Annotate Maps, Especially Charts of the North Atlantic

Description

Set up axes for a geoplot.

Usage

gridaxes(limx, limy, scale, b0, xyratio, grid, col, reitur, smareitur, axratio,
  axlabels, b1, l1, projection, dlat, dlon)

Arguments

limx	Longitude limits
limy	Latitude limits
scale	Scale to supply to Proj, invProj
b0	Base latitude for the Mercator projection. Default value is 65 (typical for Iceland)
xyratio	Argument that can be used to set the aspect ratio (?)
grid	If grid is TRUE meridians and parallels are plotted, else not. Default TRUE
col	Color of gridlines
reitur	Should the grid show statistical rectangles?
smareitur	Should the grid show statistical sub–rectangles?
axratio	Parameter usually not changed by the user (?)
axlabels	If FALSE no numbers are plotted on the axes. Default TRUE
b1	Second latitude to define Lambert projection (?, as there's a Lambert version of this function)
l1	The longitude defining the Lambert projection, default is the l1 defined in geopar, ditto ??
projection	Projection ?, other than Mercator ??)
dlat	Latitude axis increment between labels
dlon	Longitude axis increment between labels

Value

No value, useful because of its side effect of adding axes to a geoplot.

Note

May need further elaboration or simplification (referring to the general geoplot help). Coordinate with the geoaxes.Lambert and gridaxes helpfiles (supply as one??). Why are the dlat and dlim returned for this one?

See Also

Called by init, calls invProj, Proj, mercator and plot_nogrid.

geo documentation built on May 29, 2017, 5:36 p.m.