[R] plotting rasters - no plot, no error

[Michael Sumner]

On Wed, 15 Apr 2015 at 01:16 Michael Sumner <mdsumner at gmail.com> wrote:

> On Wed, 15 Apr 2015 at 00:50 Monica Pisica <pisicandru at hotmail.com> wrote:
>
>>
>> Hi,
>>
>>
>>
>> I have the current version of R installed on 2 different Windows
>> computers. On one i can plot using the plot function a raster in geotif
>> format, on the other it plots only the axis, an empty color bar and no
>> raster what so ever without generating any errors or warnings. So i suspect
>> something is not installed properly, but i don't know what. Do you have any
>> clues? I would really appreciate any insights. I need some instructions i
>> can pass on to an IT person since i don't have rights on the computer that
>> does not plot the raster.
>>
>>
>>
> Hello, can you try these on both systems and see if there's a difference?
>
>  library(raster)
> plot(raster(volcano))
>
> plot(raster(volcano), useRaster = TRUE)
>
>

Ugh, sorry I meant to try this:

plot(raster(volcano), useRaster = FALSE)

  otherwise both calls are equivalent.

Cheers, Mike.


the useRaster argument refers to use of graphics::rasterImage rather than
> image.defaul under (package) raster's hood.
>
> Cheers, Mike.
>
>
>> On both computers i can plot lines, points, polygons, as graphic objects
>> or shapefiles.
>>
>>
>>
>> Thanks so much, Monica
>>
>>
>>
>> The first PC that plots the raster:
>>
>> Sys.info()
>>
>>                      sysname                      release
>>       version
>>
>>                    "Windows"                      "7 x64" "build 7601,
>> Service Pack 1"
>>
>>                     nodename                      machine
>>         login
>>
>>             "NODENAME"                     "x86-64"
>>  "LOGIN"
>>
>>                         user               effective_user
>>
>>                       "MONICA"                       "MONICA"
>>
>>
>>
>> R.Version()
>>
>> $platform
>>
>> [1] "x86_64-w64-mingw32"
>>
>>
>>
>> $arch
>>
>> [1] "x86_64"
>>
>>
>>
>> $os
>>
>> [1] "mingw32"
>>
>>
>>
>> $system
>>
>> [1] "x86_64, mingw32"
>>
>>
>>
>> $status
>>
>> [1] ""
>>
>>
>>
>> $major
>>
>> [1] "3"
>>
>>
>>
>> $minor
>>
>> [1] "1.3"
>>
>>
>>
>> $year
>>
>> [1] "2015"
>>
>>
>>
>> $month
>>
>> [1] "03"
>>
>>
>>
>> $day
>>
>> [1] "09"
>>
>>
>>
>> $`svn rev`
>>
>> [1] "67962"
>>
>>
>>
>> $language
>>
>> [1] "R"
>>
>>
>>
>> $version.string
>>
>> [1] "R version 3.1.3 (2015-03-09)"
>>
>>
>>
>> $nickname
>>
>> [1] "Smooth Sidewalk"
>>
>>
>>
>> Libraries i loaded: maptools, raster, rgdal, sp, CircStats, rgeos, stringr
>>
>>
>>
>> The computer that does not plot the raster:
>>
>> Sys.info()
>>
>>                      sysname                      release
>>       version                     nodename
>>
>>                    "Windows"            "Server 2008 x64" "build 7601,
>> Service Pack 1"              "NODENAME"
>>
>>                      machine                        login
>>          user               effective_user
>>
>>                     "x86-64"                       "MONICA"
>>          "MONICA"                       "MONICA"
>>
>>
>>
>> R.Version()
>>
>> $platform
>>
>> [1] "x86_64-w64-mingw32"
>>
>>
>>
>> $arch
>>
>> [1] "x86_64"
>>
>>
>>
>> $os
>>
>> [1] "mingw32"
>>
>>
>>
>> $system
>>
>> [1] "x86_64, mingw32"
>>
>>
>>
>> $status
>>
>> [1] ""
>>
>>
>>
>> $major
>>
>> [1] "3"
>>
>>
>>
>> $minor
>>
>> [1] "1.3"
>>
>>
>>
>> $year
>>
>> [1] "2015"
>>
>>
>>
>> $month
>>
>> [1] "03"
>>
>>
>>
>> $day
>>
>> [1] "09"
>>
>>
>>
>> $`svn rev`
>>
>> [1] "67962"
>>
>>
>>
>> $language
>>
>> [1] "R"
>>
>>
>>
>> $version.string
>>
>> [1] "R version 3.1.3 (2015-03-09)"
>>
>>
>>
>> $nickname
>>
>> [1] "Smooth Sidewalk"
>>
>>
>>
>> Libraries i loaded: maptools, raster, rgdal, sp, CircStats, rgeos, stringr
>>
>>
>>
>> again thanks so much,
>>
>> Monica
>>
>>
>> ______________________________________________
>> R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see
>> https://stat.ethz.ch/mailman/listinfo/r-help
>> PLEASE do read the posting guide
>> http://www.R-project.org/posting-guide.html
>> and provide commented, minimal, self-contained, reproducible code.
>>
>

	[[alternative HTML version deleted]]