[R-sig-Geo] problems loading spproj library for transform()
Michael Sumner
mdsumner at utas.edu.au
Thu May 25 07:59:55 CEST 2006
Thanks Roger, it certainly does work using spTransform.
I had not noticed this 8) Below is my revised example.
Cheers, Mike.
Note: "transform" has been renamed to "spTransform" in rgdal 0.4-4
## using data from ?project example
library(rgdal)
## project works OK
data(state)
res <- project(cbind(state.center$x, state.center$y), "+proj=lcc
+lat_1=48 +lat_2=33 +lon_0=-100")
res1 <- project(res, "+proj=lcc +lat_1=48 +lat_2=33 +lon_0=-100",
inv=TRUE)
## and "transform" has been renamed to "spTransform"
res <- SpatialPoints(res, CRS("+proj=lcc +lat_1=48 +lat_2=33 +lon_0=-100"))
spTransform(res, CRS("+proj=longlat"))
sessionInfo()
#Version 2.3.0 (2006-04-24)
#i386-pc-mingw32
#attached base packages:
#[1] "methods" "stats" "graphics" "grDevices" "utils" "datasets"
#[7] "base"
#other attached packages:
# rgdal pixmap abind sp
# "0.4-4" "0.4-4" "1.1-0" "0.8-14"
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