plotKML 'kml' function with raster input
Paul,
Thanks kindly for your response. I am not certain of what you mean. My windows search path has all backslashes (\) although I wasn't clear about this in my example. It is not possible to feed the gdalwarp and gdal_translate paths to plotKML.env() as strings with backslashes in them as they are recognized as escape characters.
I forgot to include library loading in the code I shared previously, and for convenience I do so below...Thanks kindly for any further assistance.
#FIRST: Include path to GDAL install that contains 'gdalwarp.exe' and 'gdal_translate.exe' to windows search path, in my case 'C:\Program Files\GDAL'
#__________________________________
library(raster);library(rgdal);library(plotKML)
#Not sure if necessary, but I tried the following to ensure that paths are set up correctly....
#plotKML.env(gdalwarp = 'C:/Program Files/GDAL', gdal_translate = 'C:/Program Files/GDAL')
# or...
#plotKML.env(gdalwarp = 'C:/Program > Files/GDAL/gdalwarp.exe', gdal_translate = 'C:/Program Files/GDAL/gdal_translate.exe')
kml.folder <- 'c:/dave/temp';kml.file <- 'test.kml'
rast <- raster(extent(-135.2,-135.1,58.1,58.2),nrows=10,ncol=10,crs=CRS('+init=epsg:4326'))
rast[]<-rnorm(ncell(rast))
kml(rast,kml.fold,kml.file,colour = 'black')
#__________________________________
Dave.
-----Original Message-----
From: Paul Woods [mailto:p.woods at qub.ac.uk]
Sent: Monday, October 12, 2015 2:31 PM
To: Gregovich, Dave P (DFG)
Cc: r-sig-geo at r-project.org
Subject: Re: [R-sig-Geo] plotKML 'kml' function with raster input
Try changing your forward slashes (/) to backward slashes (\) as per Windows standard?
Paul
On 12 Oct 2015, at 23:26, Gregovich, Dave P (DFG) <dave.gregovich at alaska.gov> wrote:
Hello,
I am not able to create a .kml raster via the 'kml' function of plotKML (see the error below).
I am setting the path to gdal in my windows registry as 'C:/Program Files/GDAL' -- the folder that contains 'gdalwarp.exe' and 'gdal_translate.exe' upon gdal installation.
I have also set the parameters in 'plotKML.env' in the two following ways (I don't know which it is supposed to be).
plotKML.env(gdalwarp = 'C:/Program Files/GDAL', gdal_translate =
'C:/Program Files/GDAL') and plotKML.env(gdalwarp = 'C:/Program
Files/GDAL/gdalwarp.exe', gdal_translate = 'C:/Program
Files/GDAL/gdal_translate.exe')
kml.folder <- 'c:/dave/temp';kml.file <- 'test.kml'
rast <-
raster(extent(-135.2,-135.1,58.1,58.2),nrows=10,ncol=10,crs=CRS('+init
=epsg:4326'))
rast[]<-rnorm(ncell(rast))
kml(rast,kml.fold,kml.file,colour = 'black')
#Results in the following messages...with no kml or kmz file output.
KML file opened for writing...
Writing to KML...
Closing test.kml
Warning message:
In paths(show.paths = TRUE) :
Could not locate GDAL! Install program and add it to the Windows registry. See http://www.gdal.org/ for more info.
sessionInfo()
R version 3.1.3 (2015-03-09) Platform: x86_64-w64-mingw32/x64 (64-bit) Running under: Windows 7 x64 (build 7601) Service Pack 1 other attached packages: [1] plotKML_0.5-3 rgdal_1.0-7 raster_2.4-20 sp_1.2-0 ++++++++++++++++++++++++++++++++ Thanks kindly for your continued support.
__________________________________ Dave Gregovich Research Analyst Alaska Department of Fish and Game Wildlife Conservation Division Douglas, AK 99821 (907) 465-4291 dave.gregovich at alaska.gov __________________________________ [[alternative HTML version deleted]] _______________________________________________ R-sig-Geo mailing list R-sig-Geo at r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-geo