Mixing base/lattice graphics can be tricky, but is possible. http://www.bioconductor.org/CRAN/web/packages/gridBase/vignettes/gridBase.pdf
Also, did you look at Chapter 13 of the lattice book? http://lmdvr.r-forge.r-project.org/figures/figures.html Kevin On Wed, Apr 21, 2010 at 2:08 PM, David Winsemius <dwinsem...@comcast.net>wrote: > > On Apr 21, 2010, at 2:27 PM, Simon Goodman wrote: > > >> I've generated a levelplot showing the density distribution of a species >> derived from survey transects, with lon, lat co-ordinates. >> >> I'd like to overlay this on a map of the study region specified by: >> >> map('worldHires', xlim = range(mlon), ylim = range(mlat)), where mlon, >> mlat >> specifies the study region. >> > > > ?map > No documentation for 'map' in specified packages and libraries: > you could try '??map' > > ??map > > require(maps) > Loading required package: maps > > map > > So map uses base graphics. > > > > I've tried plotting the map first, then using the options: 'add=TRUE, >> axes=FALSE' in the levelplot, >> > > > levelplot is a lattice function. You will have failure with most efforts to > mix base and grid graphics. > > > > > > but this doesn't work - a new plot is >> generated for the level plot despite the 'add' option. If I try to add the >> map on top of the level plot, they are not to the same scale. >> >> Any suggestions on how to get round this. >> >> Thanks >> >> -- >> View this message in context: >> http://n4.nabble.com/overlaying-a-levelplot-on-a-map-plot-tp2019419p2019419.html >> Sent from the R help mailing list archive at Nabble.com. >> >> ______________________________________________ >> 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. >> > > David Winsemius, MD > West Hartford, CT > > ______________________________________________ > 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. > -- Kevin Wright [[alternative HTML version deleted]] ______________________________________________ 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.
