On Tue, 5 May 2009, Agustin Lobo wrote:
I have a complex shape file imported to R via rgdal
as a SPolDF. I want to display continuous attributes
with a color key but the black boundaries
of the polygons, which are small in general, introduce
"too much black" in the plot and the spatial variation
of the attribute is not correctly displayed.
What I do is
spplot(MMAMBCGUcombi["DIFPW"])
Yes, pass through the col="transparent" argument to the gpar() argument
gp= in the underlying grid.polygon() function used.
(BTW, where is the code for fig. 3.6 in the book? Perhaps I should be
using plot() instead of spplot(), but cannot find how to select
the actual atribute in the SPolDF in plot())
I think that the code is shown under the Figures menu, where you also find
the reference to its placing in chunk 22 in vis_mod.R
Is there any way of not plotting the boundaries of the polygons?
fortune("Yoda")
Roger
Thanks
Agus
--
Roger Bivand
Economic Geography Section, Department of Economics, Norwegian School of
Economics and Business Administration, Helleveien 30, N-5045 Bergen,
Norway. voice: +47 55 95 93 55; fax +47 55 95 95 43
e-mail: [email protected]
_______________________________________________
R-sig-Geo mailing list
[email protected]
https://stat.ethz.ch/mailman/listinfo/r-sig-geo
