[R-sig-Geo] OSX, rgdal, GDAL drivers and HDF4

[Shaun Walbridge]

I missed a step -- first you'll need to add Homebrew-versions [1], which
provides older releases of existing packages:

  brew tap homebrew/versions

The commands listed should then work.

1. https://github.com/Homebrew/homebrew-versions
-- 
Shaun Walbridge
GIS Developer
c: 805.722.9025 t: @scw <http://twitter.com/scw>



On 6/3/15, 9:55 AM, "Ben Tupper" <btupper at bigelow.org> wrote:

>Hi,
>
>On Jun 2, 2015, at 1:56 PM, Shaun Walbridge <SWalbridge at esri.com> wrote:
>
>> Have you tried with the homebrew project? HDF4 isn¹t a default supported
>> driver, but it¹s easy enough to add:
>> 
>>  brew install hdf4
>>  # prefer hdf4 links over NetCDF
>>  brew link --overwrite hdf4
>>  brew install gdal --complete --enable-unsupported --with-hdf4
>> 
>>  # check what drivers are installed, list should include Œhdf4¹:
>>  gdal-config --formats
>> 
>> I¹d use that as a starting point.
>> 
>
>Thanks!  I have not used brew before but it seems like it should be easy,
>or will be as soon as I figure out what this means...
>
>ben at gale ~ $ brew install hdf4
>Error: No available formula for hdf4
>Searching formulae...
>Searching taps...
>homebrew/versions/hdf4
>
>
>Cheers,
>Ben
>
>
>
>> Cheers,
>> Shaun
>> 
>> 
>> 
>> On 6/2/15, 12:11 PM, "Ben Tupper" <btupper at bigelow.org> wrote:
>> 
>>> Hello,
>>> 
>>> This is my attempt to look before I leap into installing GDAL on OSX.
>>> (You can probably hear my pitiful groaning and knee-knocking in the
>>> background.)
>>> 
>>> I want to read many HDF4 files for which I do not have the GDAL HDF4
>>> driver installed.  I used William Kyngesburye's nice framework
>>> (http://www.kyngchaos.com/software:frameworks) to install GDAL but it
>>> came without the HDF4 driver.
>>> 
>>> Reading this somewhat dated exchange...
>>> 
>>> http://r-sig-geo.2731867.n2.nabble.com/Read-HDF-files-td6750856.html
>>> 
>>> ... I think I understand that if I want the HDF4 driver I must build
>>>GDAL
>>> on my system manually.  Is my understanding correct, or is there
>>>another
>>> (easier) way to read HDF4 files directly in R?
>>> 
>>> Thanks!
>>> Ben
>>> 
>>> 
>>>> library(rgdal)
>>> Loading required package: sp
>>> rgdal: version: 0.9-3, (SVN revision 530)
>>> Geospatial Data Abstraction Library extensions to R successfully loaded
>>> Loaded GDAL runtime: GDAL 1.11.2, released 2015/02/10
>>> Path to GDAL shared files:
>>> 
>>>/Library/Frameworks/R.framework/Versions/3.2/Resources/library/rgdal/gda
>>>l
>>> Loaded PROJ.4 runtime: Rel. 4.9.1, 04 March 2015, [PJ_VERSION: 491]
>>> Path to PROJ.4 shared files:
>>> 
>>>/Library/Frameworks/R.framework/Versions/3.2/Resources/library/rgdal/pro
>>>j
>>> Linking to sp version: 1.1-0
>>>> x <- gdalDrivers()
>>>> any(x$name %in% c("HDF4", "HDF"))
>>> [1] FALSE
>>> 
>>>> sessionInfo()
>>> R version 3.2.0 (2015-04-16)
>>> Platform: x86_64-apple-darwin13.4.0 (64-bit)
>>> Running under: OS X 10.9.5 (Mavericks)
>>> 
>>> locale:
>>> [1] en_US.UTF-8/en_US.UTF-8/en_US.UTF-8/C/en_US.UTF-8/en_US.UTF-8
>>> 
>>> attached base packages:
>>> [1] stats     graphics  grDevices utils     datasets  methods   base
>>> 
>>> other attached packages:
>>> [1] rgdal_0.9-3 sp_1.1-0
>>> 
>>> loaded via a namespace (and not attached):
>>> [1] grid_3.2.0      lattice_0.20-31
>>> 
>>> 
>>> 
>>> Ben Tupper
>>> Bigelow Laboratory for Ocean Sciences
>>> 60 Bigelow Drive, P.O. Box 380
>>> East Boothbay, Maine 04544
>>> http://www.bigelow.org
>>> 
>>> _______________________________________________
>>> R-sig-Geo mailing list
>>> R-sig-Geo at r-project.org
>>> https://stat.ethz.ch/mailman/listinfo/r-sig-geo
>>> 
>> 
>
>Ben Tupper
>Bigelow Laboratory for Ocean Sciences
>60 Bigelow Drive, P.O. Box 380
>East Boothbay, Maine 04544
>http://www.bigelow.org
>
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