[R-sig-Geo] gdalUtils 0.2.0 now on CRAN
Jonathan Greenberg
jgrn at illinois.edu
Thu Jan 9 22:13:34 CET 2014
Ok, pushed a new version (0.2.4) to R-forge following these
suggestions (rgdal and raster are now moved to "Suggests", and the
examples should hopefully be updated to support it).
Rainer: would you mind testing this out? Try it with and without
outputRaster=TRUE (it should fail on outputRaster=TRUE if you don't
have rgdal installed).
--j
On Thu, Jan 9, 2014 at 2:15 PM, Rainer M Krug <Rainer at krugs.de> wrote:
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> On 01/09/14, 19:43 , Jonathan Greenberg wrote:
>> Tim: thanks! We have something similar, where the package uses a
>> Sys.which() to see if gdalinfo is available in the PATH as one of
>> its attempts to find a valid install.
>>
>> Rainer et al: I pushed version 0.2.3 to R-forge (you'll need to SVN
>> it until R-forge builds the new package later today/tomorrow) which
>> now supports a fixed search_path parameter. To use this:
>>
>> gdal_setInstallation(search_path="/pathto/your/favorite/GDAL/",rescan=TRUE)
>>
>> If it finds a valid gdalinfo in that path, it will use that one
>> (thus forcing gdalUtils to use a specific install). If it doesn't
>> find it, it will search as usual. Note that I updated the help
>> for gdal_setInstallation to better explain how gdalUtils searches
>> for a valid install.
>
> This sounds very useful. But to come back to the importing of rgdal,
> which was causing my problem: As gdalUtils is quite useful without
> rgdal, would it be possible to move rgdal to Enhances and to disable
> the functions which require rgdal when rgdal is not installed?
> And if rgdal is installed, to use the same gdal installation (I don't
> know if this is the case already)?
>
> Just a ciosmetic suggestion: it would be nice if, when loadu=ing the
> package via library(gdalUtils), that the gdal version and path could
> be printed.
>
> Thanks,
>
> Rainer
>
>
>>
>> Here's the R-forge site:
>> https://r-forge.r-project.org/projects/gdalutils/
>>
>> --j
>>
>> On Thu, Jan 9, 2014 at 12:10 PM, Tim Keitt <tkeitt at utexas.edu>
>> wrote:
>>> You might also try "gdal-config --prefix". Of course that wont
>>> work if gdal-config not installed or in the path.
>>>
>>> THK
>>>
>>>
>>> On Thu, Jan 9, 2014 at 11:46 AM, Jonathan Greenberg
>>> <jgrn at illinois.edu> wrote:
>>>>
>>>> Rainer:
>>>>
>>>> Responses below!
>>>>
>>>> On Thu, Jan 9, 2014 at 2:28 AM, Rainer M Krug <Rainer at krugs.de>
>>>> wrote:
>>
>>
>>>>>
>>
>> Very nice - haven't tried any working examples, but it installs on
>> a mac without problems and finds the gdal installation installed
>> via homebrew.
>>
>> But I have some questions:
>>
>> The automatic search is nice - but I unlinked gdal via homebrew,
>> i.e. the links to the binaries and libraries are not in the path
>> anymore, and I could not load gdalUtils anymore, as the gdalUtils
>> did not find the libraries anymore (understandable). But it seams,
>> that gdalUtils did not search for gdal, which is installed as a
>> Framework as well. Now I removed gdalUtils again and installed it
>> again, with gdal still unlinked, but it did not install as it did
>> not find the gdal libraries, despite gdal being available in a
>> framework (see http://www.kyngchaos.com/software/frameworks for the
>> ones installed - they are quite popular, and required, among GRASS
>> and QGIS users on Mac).
>>>>>
>>>>> Quick question: did you try restarting R AFTER you unlinked
>>>>> the homebrew version? Here's why I ask: the first time you
>>>>> run ANY gdalUtils in a session, what it does is spiders your
>>>>> system for working GDAL installations (in fact, it looks for
>>>>> the frameworks first). After this first time, it won't
>>>>> re-scan the drive unless you do one of two things: 1) restart
>>>>> R and re-load GDALUtils, or 2) run
>>>>> gdal_setInstallation(rescan=TRUE)
>>>>>
>> Question 1:
>>
>> Would it be possible, to include the gdal Frameworks in the search
>> path?
>>>>>
>>>>> These are the common locations it searches for, before it
>>>>> attempts a brute-force search of your whole drive:
>>>>>
>>>>> if (.Platform$OS=="unix") { common_locations <- c( # UNIX
>>>>> systems "/usr/bin", "/usr/local/bin", # Mac # Kyngchaos
>>>>> frameworks: "/Library/Frameworks/GDAL.framework/Programs", #
>>>>> MacPorts: "/opt/local/bin" ) } if (.Platform$OS=="windows")
>>>>> { common_locations <- c( "C:\\Program Files", "C:\\Program
>>>>> Files (x86)", "C:\\OSGeo4W" ) }
>>>>>
>>>>> I use those frameworks, and the function worked for me, but
>>>>> let me know if it failed to find yours (perhaps I'll strip
>>>>> the /Programs from the search path?) It is easy for me to
>>>>> add new search locations, so if there are other common
>>>>> locations for ANY OS just let me know.
>>>>>
>>
>> At the end is a layout of the directory structure of the gdal
>> frameworks.
>>
>> Question 2:
>>
>> Is it (or would it) be possible to manually set the installation
>> of gdal to be used? This would make comparison of versions of gdal
>> as well as reproducible research much easier.
>>>>>
>>>>> Yes, we can add in this functionality at a future date.
>>>>> Right now, you can check to see what your installs are by:
>>>>> gdal_setInstallation(rescan=TRUE)
>>>>> getOption("gdalUtils_gdalPath")
>>>>>
>>>>> In general, gdalUtils will use the first element of the
>>>>> getOption("gdalUtils_gdalPath"), which is chosen by the most
>>>>> recent version (by date).
>>>>>
>> Question 3:
>>
>> I can't test it right now, but I assume that gdalUtils does search
>> for a new gdal installation if it can't find the one used before?
>> Is there a way of initiating the search (and selection) if a newer
>> version has been installed?
>>>>>
>>>>> Yep, as I said either restart R or run:
>>>>> gdal_setInstallation(rescan=TRUE)
>>>>>
>>
>> Thanks for a very neat package,
>>
>> Rainer
>>
>> Directory structure of the GDAL.Framework on a MAC:
>>
>> /Library/Frameworks/GDAL.framework/ ├── Headers ->
>> Versions/Current/Headers ├── Programs -> Versions/Current/Programs
>> ├── Resources -> Versions/Current/Resources ├── Versions │ ├──
>> 1.10 │ │ ├── Headers │ │ ├── Libraries │ │ │ └──
>> ogdi │ │ ├── PlugIns │ │ ├── Programs │ │ ├── Python │
>> │ │ ├── 2.6 │ │ │ │ └── site-packages │ │ │ │
>> └── osgeo │ │ │ └── 2.7 │ │ │ └── site-packages │
>> │ │ └── osgeo │ │ ├── Resources │ │ │ ├──
>> doc │ │ │ │ └── gdal │ │ │ │ ├── java │ │ │
>> │ │ ├── org │ │ │ │ │ │ └── gdal │ │ │
>> │ │ │ ├── gdal │ │ │ │ │ │ ├──
>> gdalconst │ │ │ │ │ │ ├── ogr │ │ │ │
>> │ │ └── osr │ │ │ │ │ └── resources │ │ │
>> │ └── ogr │ │ │ └── gdal │ │ └── unix │ │
>> ├── bin │ │ ├── include -> ../Headers │ │ └── lib │
>> ├── 1.9 │ │ ├── Headers │ │ ├── Libraries │ │ │ └──
>> ogdi │ │ ├── PlugIns │ │ ├── Programs │ │ ├── Python │
>> │ │ ├── 2.6 │ │ │ │ └── site-packages │ │ │ │
>> └── osgeo │ │ │ └── 2.7 │ │ │ └── site-packages │
>> │ │ └── osgeo │ │ ├── Resources │ │ │ ├──
>> doc │ │ │ │ └── gdal │ │ │ │ ├── java │ │ │
>> │ │ ├── org │ │ │ │ │ │ └── gdal │ │ │
>> │ │ │ ├── gdal │ │ │ │ │ │ ├──
>> gdalconst │ │ │ │ │ │ ├── ogr │ │ │ │
>> │ │ └── osr │ │ │ │ │ └── resources │ │ │
>> │ └── ogr │ │ │ └── gdal │ │ └── unix │ │
>> ├── bin │ │ ├── include -> ../Headers │ │ └── lib │
>> └── Current -> 1.10 └── unix -> Versions/Current/unix
>>
>>
>>>>>>>
>>>>>>> Cheers!
>>>>>>>
>>>>>>> --j
>>>>>>>
>>
>>>>
>>>>
>>>>
>>>> -- 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
>>>>
>>>> _______________________________________________ R-sig-Geo
>>>> mailing list R-sig-Geo at r-project.org
>>>> https://stat.ethz.ch/mailman/listinfo/r-sig-geo
>>>
>>>
>>>
>>>
>>> -- http://www.keittlab.org/
>>
>>
>>
>
> - --
> Rainer M. Krug, PhD (Conservation Ecology, SUN), MSc (Conservation
> Biology, UCT), Dipl. Phys. (Germany)
>
> Centre of Excellence for Invasion Biology
> Stellenbosch University
> South Africa
>
> Tel : +33 - (0)9 53 10 27 44
> Cell: +33 - (0)6 85 62 59 98
> Fax : +33 - (0)9 58 10 27 44
>
> Fax (D): +49 - (0)3 21 21 25 22 44
>
> email: Rainer at krugs.de
>
> Skype: RMkrug
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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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