map tiles
This might be of interest too: GOOGLE CHARTS FROM R: MAPS http://www.iq.harvard.edu/blog/sss/archives/2008/04/google_charts_f_1.shtml rgds, David -----Original Message----- From: r-sig-geo-bounces at stat.math.ethz.ch [mailto:r-sig-geo-bounces at stat.math.ethz.ch] On Behalf Of Barry Rowlingson Sent: Friday, June 13, 2008 11:08 AM To: Markus Loecher Cc: r-sig-geo at stat.math.ethz.ch Subject: Re: [R-sig-Geo] map tiles
Markus Loecher wrote:
Dear Rgeo experts, what would be the most efficient way of displaying Google map tiles in R
and
overlaying lat/lon points ? It seems that already the first elementary
step
of importing and displaying png pictures is difficult to do in R ? Any help would be greatly appreciated,
It wouldn't be too hard to write some code that grabbed the google map tiles for a plot area, converted to some raster format and displayed them in an R plot window. However, have you read the google map api: """The API may be used only for services that are generally accessible to consumers without charge. Accordingly, You may not use the API for any service that requires a subscription or other restricted access, or for which a fee is charged.""" I reckon having an R plot on your desktop is pretty much restricted access. Google's map data is intended for public web sites. It might also fall foul of: """You may not copy, reverse engineer, decompile, disassemble, translate, modify or make derivative works of the imagery, in whole or in part.""" Now, OpenStreetMap maps are a different story... www.openstreetmap.org Barry _______________________________________________ R-sig-Geo mailing list R-sig-Geo at stat.math.ethz.ch https://stat.ethz.ch/mailman/listinfo/r-sig-geo