Hi, You can have separate scales for separate lattice plots. Use scales = "free".
hth, Paul Mathieu Basille wrote: > Thanks Rick for the hints. > > I have to admit, however, that it is so far a huge failure. I have been > able to play a bit with the color key (arg 'colokey' that sets the > position, the colors, the tick marks, height & width, etc.) and the > color of one map (arg 'col.regions', for finite values of the layer), > but I'm still unable to > 1) have different scales for different layers (i.e. one color key per > layer); > 2) color NA with a non-contiguous color from other finite values. From > my different tests, NA are always white (I wish I could fill them in red > for example, with finite values in a gradient of grey). > > In addition, I'm totally lost in the help pages of xyplot and levelplot > (lattice), and the graph gallery of sp didn't help neither. > > Any other resource or tutorial for this? > Thanks in advance, > Mathieu. > > > Rick Reeves a écrit : > >> Mathiu: >> >> The attached use case might help: It is not exactly what you are looking >> for, but the last map >> demonstrates use of the spplot function to create a 'display list' that >> plots vector and raster >> data layers on a single map. Also some hints on creating a map scale and >> legend. >> >> http://nceas.ucsb.edu/scicomp/GISSeminar/UseCases/MapProdWithRGraphics/OneMapProdWithRGraphics.html >> >> >> >> Regards, >> Rick Reeves >> >> Mathieu Basille wrote: >> >>> Hello everyone, >>> >>> I'm not very familiar with visualization of spatial objects in R, >>> especially with the possibilities of the spplot function... >>> >>> I have a SpatialPolygonsDataFrame and I'd like to obtain a map with a >>> specific scale for each layer (not in the geographic space, but in the >>> data), instead of the same one for every one. In my case, the layers >>> represent different variables, not on the same scale (e.g. elevation >>> and rain). >>> >>> Additionally, I'd like to represent NA's with a particular color (say >>> black so that we can see immediately where they occur). >>> >>> I guess these 2 issues are somehow related, but I didn't manage to >>> solve them. The help pages of spplot or xyplot didn't really help... >>> >>> Any hint how to do that? >>> Thanks in advance, >>> Mathieu. >>> >>> >>> > version >>> platform i486-pc-linux-gnu >>> svn rev 43537 >>> version.string R version 2.6.1 (2007-11-26) >>> sp: sp_0.9-19 >>> > > > -- Drs. Paul Hiemstra Department of Physical Geography Faculty of Geosciences University of Utrecht Heidelberglaan 2 P.O. Box 80.115 3508 TC Utrecht Phone: +31302535773 Fax: +31302531145 http://intamap.geo.uu.nl/~paul _______________________________________________ R-sig-Geo mailing list [email protected] https://stat.ethz.ch/mailman/listinfo/r-sig-geo
