[R] map projections

Jason Beegan jtb at kurwenal.com
Fri Apr 20 20:21:41 CEST 2001


I don't know of any R code for this, but there is a freely available
software package from the US Geological Survey supporting over 70
different projections, including the ones you mention.

You can get it from
	  
	  ftp://kai.er.usgs.gov/pub/Proj.4/

The relevant file is PROJ.4.3.3.tar.gz.

The documentation is very good (get the the postscript files
PROJ.4.3.ps.gz, OF90-284.ps.gz, and SWISS.ps.gz from the above directory).

I know NetBSD has this in the Packages Collection
	      
	      http://www.netbsd.org/packages/misc/proj/

(I ought to know, I imported it).  I think Debian GNU/Linux has it
also.  So if you use one of these systems you might not need to
compile it yourself.


Regards,

Jason Beegan.


> G' Day,
> 
> 
> Can you please tell me if there is R code for geographic projections?  ie  lat,
> lon -> x,y metres.  I'm principally interested in Mercator and Lambert Equal Ar
> ea Azimuthal.  Failing R code - code in any language!
> 
> 
> Many thanks
> 
> 
> Bernie McConnell
> 
> Bernie McConnell
> 
> <color><param>0000,0000,ffff</param>NERC SEA MAMMAL RESEARCH UNIT
> 
> </color>Gatty Marine Lab, St Andrews University
> 
> St Andrews, Fife,  KY16 8LB, Scotland.
> 
> 
> b.mcconnell at smru.st-andrews.ac.uk
> 
> http://www.smru.st-and.ac.uk
> 
> tel:  	+44 (1334) 463280   
> 
> fax:  	+44 (1334) 462632   
> 
> 
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