raster CRS changes on tis own
Sorry I forgot my session info:
sessionInfo()
R version 2.15.2 (2012-10-26) Platform: x86_64-pc-linux-gnu (64-bit) locale: [1] LC_CTYPE=en_US.UTF-8 LC_NUMERIC=C LC_TIME=en_US.UTF-8 LC_COLLATE=en_US.UTF-8 LC_MONETARY=en_US.UTF-8 LC_MESSAGES=en_US.UTF-8 [7] LC_PAPER=C LC_NAME=C LC_ADDRESS=C LC_TELEPHONE=C LC_MEASUREMENT=en_US.UTF-8 LC_IDENTIFICATION=C attached base packages: [1] stats graphics grDevices utils datasets methods base other attached packages: [1] rgdal_0.7-5 raster_2.0-12 sp_0.9-99 loaded via a namespace (and not attached): [1] grid_2.15.2 lattice_0.19-30 tools_2.15.2 Agus
On Tue, Nov 13, 2012 at 10:41 AM, Agustin Lobo <alobolistas at gmail.com> wrote:
Hi! I modify the CRS of a raster object:
vinedomosaicMCA03 <- brick(paste(mosdir,"mosaico_envi.dat",sep="/"))
proj <- CRS("+init=epsg:3042")
proj
CRS arguments: +init=epsg:3042 +proj=utm +zone=30 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=m +no_defs
projection(vinedomosaicMCA03) <- proj vinedomosaicMCA03
class : RasterBrick dimensions : 1486, 1162, 1726732, 6 (nrow, ncol, ncell, nlayers) resolution : 0.170881, 0.170881 (x, y) extent : 578587.4, 578785.9, 4722025, 4722279 (xmin, xmax, ymin, ymax) coord. ref. : +init=epsg:3042 +proj=utm +zone=30 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=m +no_defs data source : /media/Iomega_HDD/UAVetal/vinedo/Clara_final/mosaico_envi.dat names : mosaico_envi.1, mosaico_envi.2, mosaico_envi.3, mosaico_envi.4, mosaico_envi.5, mosaico_envi.6 But then, after a reordering, the CRS changes again on its own:
vinedomosaicMCA03v2 <- subset(vinedomosaicMCA03,c(3,1,2,4,5,6)) vinedomosaicMCA03v2
class : RasterStack dimensions : 1486, 1162, 1726732, 6 (nrow, ncol, ncell, nlayers) resolution : 0.170881, 0.170881 (x, y) extent : 578587.4, 578785.9, 4722025, 4722279 (xmin, xmax, ymin, ymax) coord. ref. : +proj=utm +zone=30 +ellps=WGS84 +towgs84=0,0,0,0,0,0,0 +units=m +no_defs names : mosaico_envi.3, mosaico_envi.1, mosaico_envi.2, mosaico_envi.4, mosaico_envi.5, mosaico_envi.6 min values : NA, NA, NA, NA, NA, NA max values : NA, NA, NA, NA, NA, NA The correct CRS is conserved if I write to GTiff:
projection(vinedomosaicMCA03v2) <- proj vinedomosaicMCA03v2
class : RasterStack dimensions : 1486, 1162, 1726732, 6 (nrow, ncol, ncell, nlayers) resolution : 0.170881, 0.170881 (x, y) extent : 578587.4, 578785.9, 4722025, 4722279 (xmin, xmax, ymin, ymax) coord. ref. : +init=epsg:3042 +proj=utm +zone=30 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=m +no_defs names : mosaico_envi.3, mosaico_envi.1, mosaico_envi.2, mosaico_envi.4, mosaico_envi.5, mosaico_envi.6 min values : NA, NA, NA, NA, NA, NA max values : NA, NA, NA, NA, NA, NA
writeRaster(vinedomosaicMCA03v2,file="mosaico_enviv2",overwrite=T,format="GTiff")
class : RasterBrick dimensions : 1486, 1162, 1726732, 6 (nrow, ncol, ncell, nlayers) resolution : 0.170881, 0.170881 (x, y) extent : 578587.4, 578785.9, 4722025, 4722279 (xmin, xmax, ymin, ymax) coord. ref. : +proj=utm +zone=30 +ellps=GRS80 +units=m +no_defs data source : /media/Iomega_HDD/UAVetal/vinedo/RNavarra/mosaico_enviv2.tif names : mosaico_enviv2.1, mosaico_enviv2.2, mosaico_enviv2.3, mosaico_enviv2.4, mosaico_enviv2.5, mosaico_enviv2.6 min values : 0, 0, 0, 0, 0, 0 max values : 175, 224, 179, 199, 196, 204 But it is modified if I write to ENVI format:
writeRaster(vinedomosaicMCA03v2,file="mosaico_enviv2",overwrite=T,format="ENVI")
class : RasterBrick dimensions : 1486, 1162, 1726732, 6 (nrow, ncol, ncell, nlayers) resolution : 0.170881, 0.170881 (x, y) extent : 578587.4, 578785.9, 4722025, 4722279 (xmin, xmax, ymin, ymax) coord. ref. : +proj=utm +zone=30 +datum=NAD27 +units=m +no_defs +ellps=clrk66 +nadgrids=@conus, at alaska, at ntv2_0.gsb, at ntv1_can.dat data source : /media/Iomega_HDD/UAVetal/vinedo/RNavarra/mosaico_enviv2.envi names : mosaico_enviv2.1, mosaico_enviv2.2, mosaico_enviv2.3, mosaico_enviv2.4, mosaico_enviv2.5, mosaico_enviv2.6 min values : 0, 0, 0, 0, 0, 0 max values : 175, 224, 179, 199, 196, 204 Is this a bug in raster or rgdal, or am I doing something wrong? Agus