[R] projections

Ray Brownrigg Ray.Brownrigg at ecs.vuw.ac.nz
Tue Feb 16 04:00:18 CET 2010


If you use map() with the projection= option, then see ?mapproject, which allows you to 
project arbitrary (long/lat) points with the previously defined projection.  Then you use 
points() to overlay them onto the map.

HTH,
Ray Brownrigg

On Tue, 16 Feb 2010, Shaun Langley wrote:
> I have lat/lon coordinates in Michigan GeoRef that I need to re-project so
> they can be shown over a Michigan county map generated from the Maps
> library.  I'm very confused as to how to do this.  Can anyone help?
>
> Thanks,
>
> Shaun
>
>
>
>
> 	[[alternative HTML version deleted]]
>
> ______________________________________________
> R-help at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide
> http://www.R-project.org/posting-guide.html and provide commented, minimal,
> self-contained, reproducible code.



More information about the R-help mailing list