[R-sig-Geo] Problem with rgdal

[Agustin Lobo]

right, I had a typo in the previous line of the code:
rlm1ext <- as(extent(rlm1), 'SpatialPolygons')
projection(rlm1ext <- projection(rlm1))

instead of
projection(rlm1ext) <- projection(rlm1)

The problem is that I remembered having that error message
"load package rgdal for spTransform methods"
with gdal-related installation problems and got into a totally wrong direction,

Thanks!

Agus

On Wed, Mar 26, 2014 at 12:06 PM, Michael Sumner <mdsumner at gmail.com> wrote:
> I suspect that your rlm1ext is not spTransform-able.
>
> library(rgdal)
> spTransform(1, CRS("+init=epsg:4326"))
> Error in spTransform(1, CRS("+init=epsg:4326")) :
>   load package rgdal for spTransform methods
>
> It might be hard to test that there couldn't ever be a method for
> spTransform for some given input, but this does seem a little too
> open-ended.
>
> Cheers, Mike.
>
> On Wed, Mar 26, 2014 at 9:56 PM, Agustin Lobo <alobolistas at gmail.com> wrote:
>> I get this weird behaviour (on linuxmint based of ubuntu raring):
>>
>>> rlm1ext <- spTransform(rlm1ext, CRS("+init=epsg:4326"))
>> Error in spTransform(rlm1ext, CRS("+init=epsg:4326")) :
>>   load package rgdal for spTransform methods
>>
>> despite rgdal had been loaded:
>>
>>> require(rgdal)
>> Loading required package: rgdal
>> rgdal: version: 0.8-16, (SVN revision 498)
>> Geospatial Data Abstraction Library extensions to R successfully loaded
>> Loaded GDAL runtime: GDAL 1.10.0, released 2013/04/24
>> Path to GDAL shared files: /usr/share/gdal/1.10
>> Loaded PROJ.4 runtime: Rel. 4.8.0, 6 March 2012, [PJ_VERSION: 480]
>> Path to PROJ.4 shared files: (autodetected)
>>
>> Any suggestion on what is going wrong?
>> Agus
>>
>>> sessionInfo()
>> R version 3.0.2 (2013-09-25)
>> Platform: x86_64-pc-linux-gnu (64-bit)
>>
>> locale:
>>  [1] LC_CTYPE=en_US.UTF-8       LC_NUMERIC=C
>> LC_TIME=es_ES.UTF-8        LC_COLLATE=en_US.UTF-8
>>  [5] LC_MONETARY=es_ES.UTF-8    LC_MESSAGES=en_US.UTF-8
>> LC_PAPER=es_ES.UTF-8       LC_NAME=C
>>  [9] LC_ADDRESS=C               LC_TELEPHONE=C
>> LC_MEASUREMENT=es_ES.UTF-8 LC_IDENTIFICATION=C
>>
>> attached base packages:
>> [1] stats     graphics  grDevices utils     datasets  methods   base
>>
>> other attached packages:
>> [1] rgeos_0.3-2     ggmap_2.3       ggplot2_0.9.3.1 rgdal_0.8-16
>> raster_2.2-31   sp_1.0-14
>>
>> loaded via a namespace (and not attached):
>>  [1] colorspace_1.2-4    dichromat_2.0-0     digest_0.6.4
>> grid_3.0.2          gtable_0.1.2
>>  [6] labeling_0.2        lattice_0.20-24     mapproj_1.2-1
>> maps_2.3-6          MASS_7.3-29
>> [11] munsell_0.4.2       plyr_1.8            png_0.1-7
>> proto_0.3-10        RColorBrewer_1.0-5
>> [16] reshape2_1.2.2      RgoogleMaps_1.2.0.5 rjson_0.2.13
>> RJSONIO_1.0-3       scales_0.2.3
>> [21] stringr_0.6.2       tools_3.0.2
>>
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>
>
>
> --
> Michael Sumner
> Software and Database Engineer
> Australian Antarctic Division
> Hobart, Australia
> e-mail: mdsumner at gmail.com
>
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