Are you in Windows or a Linux type computer, please?
-----Original Message-----
From: r-sig-geo-bounces at r-project.org [mailto:r-sig-geo-bounces at r-
project.org] On Behalf Of Waichler, Scott R
Sent: Monday, September 16, 2013 6:49 PM
To: Rob Robinson
Cc: r-sig-geo at r-project.org
Subject: Re: [R-sig-Geo] function to convert to/from U.S. State Plane
Coordinates?
Ok, now I know about the existence of EPSG codes, but apparently my rgdal
installation can't find the list of them? Do I need to find a certain
file in my system's PROJ4 installation, then tell that to rgdal?
library(maps)
library(rgdal)
pnw <- map('state', region = c('washington', 'oregon', 'idaho'),
plot=F) epsg <- make_EPSG()
Error in make_EPSG() : Error opening epsg file
pnw.spc <- spTransform(pnw, CRS=CRS("+init=epsg:102749"))
Error in spTransform(pnw, CRS = CRS("+init=epsg:102749")) :
error in evaluating the argument 'CRSobj' in selecting a method for
function 'spTransform': Error in CRS("+init=epsg:102749") : no system
list, errno: 13
--Scott
try following the instructions
here?http://www.gpsmeter.com/index.php?page=faq14?to find an epsg code
then something along the lines of spTransform(data,
CRS=CRS("+init=epsg:xxx")) should work?
On 17 September 2013 00:09, Waichler, Scott R
<Scott.Waichler at pnnl.gov>
wrote:
Erin, thanks, I'm getting closer. ?Rgdal's projInfo() lists UTM, which
I believe is closely related to the State Plane Coordinate system, but
I still don't see a direct transformation to SPC in R. ?--Scott
Waichler
Could you mean spTransform from rgdal, please?
Hi, ?Does an R function exist to convert to and from the State Plane
Coordinates system used in the U.S.? ?My search with Rseek was