Long time listener, first time caller
Dear Robert, Working with: > sessionInfo() R version 2.13.1 (2011-07-08) Platform: i386-pc-mingw32/i386 (32-bit) locale: [1] LC_COLLATE=French_France.1252 LC_CTYPE=French_France.1252 [3] LC_MONETARY=French_France.1252 LC_NUMERIC=C [5] LC_TIME=French_France.1252 attached base packages: [1] stats graphics grDevices utils datasets methods base other attached packages: [1] raster_1.8-42 sp_0.9-84 fortunes_1.4-2 loaded via a namespace (and not attached): [1] grid_2.13.1 lattice_0.19-30 tools_2.13.1 The issue is not specific to the GUI. I also see it with Rterm. I'm seeing the white lines on the windows() device (screen), as well as on jpeg, png, and postscript devices (though much finer lines for the latter). Conversely, pdf outputs don't seen to have the problem (also tested with other raster images). All the best, Renaud Le 15/07/2011 02:40, Robert Hijmans a ?crit :
Lines appear to be a GUI issue, went back to 2.13.0 and plot of raster
looks fine. When plotting a Raster* object, raster calls the 'image' function. spplot uses 'levelplot'. Both are affected by these white lines in R 2.13.1 on Windows, I think (anyone seeing this on Mac or Linux? or not seeing this on Windows?). Here is a simple test: image(t(volcano)[ncol(volcano):1,]) In some cases there are only lines such that it seems that there are no data values. I would expect that this will be fixed soon, but I am changing 'raster' so that the next version calls 'rasterImage' (which is not affected and should be more efficient) in stead of 'image'. Please correct me if I am wrong, but I think that for now one should not use R 2.13.1 on Windows (and perhaps other OSs) if you want to plot raster data. Robert
sessionInfo()
R version 2.13.1 (2011-07-08) Platform: i386-pc-mingw32/i386 (32-bit) -- View this message in context: http://r-sig-geo.2731867.n2.nabble.com/Long-time-listener-first-time-caller-tp6585078p6585499.html Sent from the R-sig-geo mailing list archive at Nabble.com.
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Renaud Lancelot EDENext Project, coordinator: http://www.edenext.eu/ CIRAD, UMR15, Campus International de Baillarguet TA A-DIR / B F34398 Montpellier Tel. +33 4 67 59 37 17 - Fax +33 4 67 59 37 95 Secr. +33 4 67 59 37 37 - Cell. +33 6 77 52 08 69