[R-sig-Geo] Access WMS (and alike) services from R?
Joona Lehtomäki
joona.lehtomaki at cs.helsinki.fi
Wed Apr 30 10:19:29 CEST 2014
Hi Agustin,
A while ago I wrote some code for dealing with WMS from R which can be
found here:
https://github.com/louhos/takomo/tree/master/GIS
The idea was to define WMS URLs in a separate file and then create the
necessary XML specs for rgdal dynamically. Unfortunately the URLs have
gone stale since so the code can't easily be tested right now and I have
no plans to fix the URLs. But just in case you might find something
useful in there.
Cheers,
Joona
On 04/30/2014 10:58 AM, Agustin Lobo wrote:
> Actually had found this
> http://www.gdal.org/frmt_wms.html
>
> My idea is using qgis for the interactive selection of the wms
> service, layer and window, and then
> make the xml and request the layer in R.
>
> A bridge between qgis to R for raster layers, similar to the no-longer
> working manageR plugin for vector layers,
> would be another solution, but would imply writing to disk a raster layer.
>
> Unfortunately cannot do this myself, trying to find an interested ms student.
>
> Agus
>
> On Tue, Apr 29, 2014 at 5:55 PM, Jonathan Greenberg <jgrn at illinois.edu> wrote:
>> I haven't tested this exact application yet, but perhaps try gdalUtils
>> (which are wrappers for the gdal utilities, and use an independent
>> GDAL install). Let me know if it works!
>>
>> --j
>>
>> On Wed, Apr 23, 2014 at 8:34 AM, Agustin Lobo <alobolistas at gmail.com> wrote:
>>> According to gdalDrivers(), I have
>>> 115 WCS OGC Web
>>> Coverage Service FALSE FALSE
>>> 116 WMS OGC Web Map
>>> Service FALSE TRUE
>>>
>>>
>>> which I understand implies that I should be able to read wms.
>>>
>>> I'll see if I can find someone interested on building this type of utility in R.
>>>
>>> Agus
>>>
>>> Details on my system (linuxmint 15, based on ubuntu raring) (gdal from
>>> ubuntugis-unstable):
>>>> require(rgdal)
>>> Loading required package: rgdal
>>> Loading required package: sp
>>> 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)
>>>
>>>> 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] grid stats graphics grDevices utils datasets
>>> methods base
>>>
>>> other attached packages:
>>> [1] rasterVis_0.27 hexbin_1.26.3 latticeExtra_0.6-26
>>> lattice_0.20-24 RColorBrewer_1.0-5
>>> [6] ggmap_2.3 ggplot2_0.9.3.1 raster_2.2-31
>>> rgdal_0.8-16 sp_1.0-14
>>>
>>> loaded via a namespace (and not attached):
>>> [1] colorspace_1.2-4 dichromat_2.0-0 digest_0.6.4
>>> gtable_0.1.2 labeling_0.2
>>> [6] mapproj_1.2-1 maps_2.3-6 MASS_7.3-29
>>> munsell_0.4.2 plyr_1.8
>>> [11] png_0.1-7 proto_0.3-10 reshape2_1.2.2
>>> RgoogleMaps_1.2.0.5 rjson_0.2.13
>>> [16] RJSONIO_1.0-3 scales_0.2.3 stringr_0.6.2
>>> tools_3.0.2 zoo_1.7-10
>>>
>>> $ uname -a
>>> Linux Delia 3.8.0-35-generic #50-Ubuntu SMP Tue Dec 3 01:24:59 UTC
>>> 2013 x86_64 x86_64 x86_64 GNU/Linux
>>>
>>>
>>>
>>> On Wed, Apr 23, 2014 at 2:09 PM, Roger Bivand <Roger.Bivand at nhh.no> wrote:
>>>> On Wed, 23 Apr 2014, Agustin Lobo wrote:
>>>>
>>>>> Hi!
>>>>>
>>>>> Is there any project attempting to access remote geoservices such as
>>>>> WMS in a similar way
>>>>> as it is done with google maps (i.e. through ggmap:get_map()) ?
>>>>
>>>>
>>>> I've no idea how ggmap does this, or whether it uses WMS. Your GDAL may have
>>>> been built with a WMS driver - see gdalDrivers() to check. The CRAN Windows
>>>> rgdal binary does not have this driver. For driver details see:
>>>>
>>>> http://www.gdal.org/frmt_wms.html
>>>>
>>>> which has examples of the short xml files needed to configure access to such
>>>> services.
>>>>
>>>> Roger
>>>>
>>>>>
>>>>> Agus
>>>>>
>>>>> _______________________________________________
>>>>> R-sig-Geo mailing list
>>>>> R-sig-Geo at r-project.org
>>>>> https://stat.ethz.ch/mailman/listinfo/r-sig-geo
>>>>>
>>>>
>>>> --
>>>> Roger Bivand
>>>> Department of Economics, Norwegian School of Economics,
>>>> Helleveien 30, N-5045 Bergen, Norway.
>>>> voice: +47 55 95 93 55; fax +47 55 95 91 00
>>>> e-mail: Roger.Bivand at nhh.no
>>>>
>>>> _______________________________________________
>>>> R-sig-Geo mailing list
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>>>
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>>
>>
>>
>> --
>> Jonathan A. Greenberg, PhD
>> Assistant Professor
>> Global Environmental Analysis and Remote Sensing (GEARS) Laboratory
>> Department of Geography and Geographic Information Science
>> University of Illinois at Urbana-Champaign
>> 259 Computing Applications Building, MC-150
>> 605 East Springfield Avenue
>> Champaign, IL 61820-6371
>> Phone: 217-300-1924
>> http://www.geog.illinois.edu/~jgrn/
>> AIM: jgrn307, MSN: jgrn307 at hotmail.com, Gchat: jgrn307, Skype: jgrn3007
>>
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