[R-sig-Geo] Using the Z value for 3-D polygons?

[Jim Burke]

Hi everyone,

Please be patient with that recent email I sent
out that suddenly turned into dropped linefeed
semi garbage as I sent it.

To view this properly, you can copy and paste
to a Notepad or Unix edit session and insert
the line feeds here and there so you can
understand it better.

I opened a bug with Thunderbird.

Back to R, I really hope to get going on the
problem in that note. I have spent some
thought and time trying to get it fixed but
no success.

Thanks,
Jim Burke


Jim Burke wrote:
> Hi Everyone,
>
> QUESTION: How can I plot a spatial polygon (SpatialPolygonsDataFrame) 
> as 3-d? Perhaps using "spplot.polygons" with its z value?
>
> GOAL: To have a series of polygons look like approximately like the 
> last example in the PDF below.
> http://ocw.mit.edu/NR/rdonlyres/Urban-Studies-and-Planning/11-521Spatial-Database-Management-and-Advanced-Geographic-Information-SystemsSpring2003/ACA80C9F-4089-403E-9669-50763381D08A/0/lect13c.pdf 
>
>
> EXAMPLE SUGGESTION: Use "spplot.pologons" with the venerable 
> SourceForge NC fig21.R example and using its color coding values as 
> the polygon $z value? Assuming lat and long are in the sp.
> http://r-spatial.sourceforge.net/gallery/#fig21.R
>
> Then if its not as straightforward as above, what would be the steps 
> to convert a spatial polygon to points or something to graph that way?
>
> Thanks,
> Jim Burke
>
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