[R-sig-Geo] Fill pattern in plot.SpatialPolygons

[Roger Bivand]

On Thu, 28 Jan 2010, Bjarke Christensen wrote:

>
> Hi,
>
> Is it possible to plot SpatialPolygons using a fill pattern, so that the
> polygon is filled not with a solid color but with lines, dots or the like?

If the angle= and density= arguments as described in ?polygon give you 
what you want, yes. They may be used like col=.

Getting a cross-hatch means over-plotting for the affected polygons, again 
in the usual way - the same can be done to mix solid colour and lines.

Roger

>
> Thanks in advance,
> Bjarke Christensen
>
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-- 
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: Roger.Bivand at nhh.no