Re: [R-sig-Geo] converting from UTM to Decimal degrees

2012-05-16 Thread Hodgess, Erin
] Sent: Thu 5/17/2012 12:15 AM To: Hodgess, Erin Cc: r-sig-geo@r-project.org Subject: Re: [R-sig-Geo] converting from UTM to Decimal degrees See functions ?project and ?spTransform in the rgdal package. The former is simpler but is only for transforming a matrix of coordinates from or to longitude

Re: [R-sig-Geo] converting from UTM to Decimal degrees

2012-05-16 Thread Michael Sumner
See functions ?project and ?spTransform in the rgdal package. The former is simpler but is only for transforming a matrix of coordinates from or to longitude / latitude, and no datum transformation is possible. The latter can transform Spatial* objects arbitrarily from or or to any PROJ.4 coordina

[R-sig-Geo] converting from UTM to Decimal degrees

2012-05-16 Thread Hodgess, Erin
Dear R Sig Geo People: Is there a function to convert UTM coordinates to Decimal degrees, please? This is just for a few points; nothing big. I know that this is a relatively easy one, but thought I'd check before I wrote up something. Thanks, Erin Erin M. Hodgess, PhD Associate Professor