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geo (version 1.4-3)

init: Initiate a geoplot (??)

Description

Initiate a geoplot (??).

Usage

init(lat, lon = 0, type = "p", pch = "*", xlim = c(0, 0), ylim = c(0, 0), b0 = 65, r = 1.05, xlab = "Longitude", ylab = "Latitude", option = "cut", grid = T, new = F, cont = F, cex = 0.7, col = 1, lcont = c(0.13, 0.21), plotit = T, reitur = F, smareitur = F, reittext = F, axratio = 1, lwd = 0, axlabels = T, oldpar, projection = "Mercator", b1 = 65, dlat = 0, dlon = 0, command = 0, jitter = 0, xaxdist, yaxdist)

Arguments

lat,lon
Latitude and longitude
type
Plot method
pch
Plot character
xlim,ylim
Plot limits
b0
Base latitude
r
Plot ratio, multiplier on diff(x_or_ylim)
xlab,ylab
Labels for x- and y-axes, default "Longitude", "Latitude"
option
Method of determining plot extent, default "cut"
grid
Should a grid be drawn, default TRUE
new
Plot control, default FALSE adds plot to current plot
cont
For use with contours: should space be reserved for contour labels? Default FALSE
cex
Character size expansion
col
Color, default 1, usually black
lcont
Contour lable space allocation, default c(0.13, 0.21)
plotit
If FALSE plot is only initialized but not plotted. If used other programs are used to fill the plot (geolines, geocontour, geopolygon etc). Most often used in multiple plots.
reitur
Should the grid be that of statistical rectangles?
smareitur
Should the grid be that of statistical sub--rectangles?
reittext
Should the rectangles be labelled?
axratio
Parameter usually not changed by the user.
lwd
Line width
axlabels
If FALSE no numbers are plotted on the axes. Default value is TRUE.
oldpar
The old par--list, from the parent geoplot--call
projection
Projection, default Mercator
b1
Second latitude for Lambert projection
dlat,dlon
Defines the grid, to make a grid on the axes, 1 is a number on axis and a line at every deg. Not usualy set by user.
command
The parent geoplot command is included, although for what purpose isn't quite clear??
jitter
Random jitter to accentuate repeated values. Default no jitter (jitter = 0)
xaxdist,yaxdist
Distance from plot to the labels on axes (dist or r argument to geoaxis). Default values 0.2, 0.3 but higher values mean that axlabels are further away from the plot. Further flexibility with axes can be reached by calling geoplot with axlabels = FALSE and geoaxis aferwards.

Value

No value, side effect plotted.

See Also

Called by geoplot calls Elimcomp, findline, geoaxis, gridaxes, gridaxes.Lambert, invProj, Proj.