[R-sig-Geo] spplot, polygons, and line density fill

[Hadley Wickham]

Unfortunately this type of fill is not currently easy with grid
graphics, which is what both spplot and ggplot2 use.

Hadley

On Fri, Apr 8, 2011 at 10:25 AM, Matthew Landis <landis at isciences.com> wrote:
> In case my request wasn't really clear, let me rephrase:
>
> I'd like to overlay some polygons onto a raster, by plotting with a line
> density fill instead of a solid fill, as shown here
> http://r-spatial.sourceforge.net/gallery/#fig15.R.  Ideally I would be able
> to modify the angle of the lines.  I know how to do this in base graphics,
> but I really need to use spplot (or willing to use ggplot2 if that can do
> what I want).
>
> Thanks in advance for any ideas!
>
> Matt
>
> On 4/8/2011 11:21 AM, Matthew Landis wrote:
>>
>> Hello again R-sig-geo-ers,
>>
>> Does anyone know how to convince spplot to create a figure like
>> http://r-spatial.sourceforge.net/gallery/#fig15.R
>>
>> I would like to overlay some polygons onto a raster, and I need to do it
>> with spplot for the lattice functionality.  I've looked at the help and the
>> function code for sp.polygon and grid.polygon, as well as searched a bit on
>> Google, but I'm not finding anything promising, but then, I'm not that
>> familiar with grid graphics.
>>
>> Since we're talking about R, I have a hard to time believing the answer is
>> "it's not possible".
>>
>> M
>> <http://r-spatial.sourceforge.net/gallery/#fig15.R>
>>
>
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-- 
Assistant Professor / Dobelman Family Junior Chair
Department of Statistics / Rice University
http://had.co.nz/