It is relatively easy to do a small function for this in R: a) select the desired width for your border b) through a fix number or through the use of pretty(), establish the number of rectangles you want along your border. Then e.g., you can use rect() you build the sequence of black-white rectangles along your border.
Hope this helps. Javier García-Pintado ... > Kelsey Scheitlin <kns07g <at> fsu.edu> writes: > >> >> Hi, I am looking for a specific mapping capability in R that I can't >> seem to > find, but think exists. I would >> like to make a border of a map have alternating black and white squares > instead of the common latitude and >> longitude grid. (example: >> http://www.cccturtle.org/sat_maps/map0bw8.gif). If > anyone knows if >> there is or is not a function capable if doing this could you please let >> me > know? Thanks! >> >> Kelsey > > It's not QUITE what you're looking for, but > > plot(0:1,0:1,bty="n",axes=FALSE) > box(bty="o",lwd=6,lty="FF") > > (See ?box, ?par under "bty" and "Line Type Specification") > > Otherwise you can do this by using par("usr") to find the > edges of the map, seq() to construct appropriate x and y > sequences, and segments() to draw the lines. > > Ben Bolker > > ______________________________________________ > R-help@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide > http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. > ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
