geo (version 1.4-3)

bwps: Open a postscript device with the color scheme given by geoplotbwpalette. (black and white)

Description

The function starts a postscript device and the arguments are the same as the arguments to postscript (height, width, file, bg etc) . The color scheme is 1 black, 2-155 white to black in even steps.

Usage

bwps(...)

Arguments

...

The arguments to postscript are optional. See help postscript.

Value

No value returned.

Side Effects

A graphics device is opened (often a file). It must be closed again by dev.off()

Details

See Also

postscript, geoplotbwpalette,litir

Examples

## Not run: 
# bwps(file="map1.ps",height=6,width=5)
# geoplot(xlim=c(-28,-10),ylim=c(64,69))
# geosymbols(data,z=data$value,circles=0.2,sqrt=T)
# geopolygon(island,col="white")# paint white over the symbols
# geolines(island) # that are inside the country.  (island)
# dev.off()
# 
# # same example in a different way.
# bwps(file="map1.ps",height=6,width=5,bg="white")
# geoplot(xlim=c(-28,-10),ylim=c(64,69))
# geosymbols(data,z=data$value,circles=0.2,sqrt=T)
# geopolygon(island,col=0)#col 0 is now white
# geolines(island) # was transparent earlier
# dev.off() ## End(Not run)