Hi Folks-- This is my first posting to this list. Glad to be here! I am working on a choropleth map with a large number of regions, and I would like to distinguish three subsets of the regions with borders of different colors. To do this, I would need to draw two distinct non-overlapping borders for contiguous regions. Has anyone written a border function that draws the boarder lines strictly within the region it borders? Failing that, could I get some pointers on how to go about it? I?ve used several of the map packages (rgdal, ggplot2, maps), but only in a cookbook sort of way, guided by the code posted The Choropleth Challenge <http://blog.revolutionanalytics.com/2009/11/choropleth-challenge-result.html> . I do not claim to be proficient with any of them, and have not previously looked at the inner workings of any of the functions used to draw boarders. (If there is no published package function that does this and it would be easier for you to give me some code rather than telling me how to write it myself, I would be quite content to accept it, though I might subsequently pester you with questions about how it works). Any help anyone could offer, either on the availability of functions in existing packages or on the construction of a new one, would be most appreciated. Sincerely, andrewH -- View this message in context: http://r-sig-geo.2731867.n2.nabble.com/Drawing-boarders-strictly-within-region-boundaries-tp7581270.html Sent from the R-sig-geo mailing list archive at Nabble.com.
Drawing boarders strictly within region boundaries
1 message · Andrew Hoerner