[R-sig-Geo] Fwd: Suggestion: option overwrite=T for writeOGR()

Roger Bivand Roger.Bivand at nhh.no
Tue Dec 14 13:51:39 CET 2010 

On Mon, 13 Dec 2010, Roger Bivand wrote:

> On Mon, 13 Dec 2010, Agustin Lobo wrote:
>
>> ---------- Forwarded message ----------
>> From: Agustin Lobo <alobolistas at gmail.com>
>> Date: 2010/12/13
>> Subject: Re: [R-sig-Geo] Suggestion: option overwrite=T for writeOGR()
>> To: Roger.Bivand at nhh.no
>> 
>> 
>> Roger,
>> 
>> According to Synaptic, my gdal is 1.7.3,
>> I do not understand where the reported
>> GDAL runtime: GDAL 1.8dev
>> comes from. Could it have been installed by rgdal?
>
> rgdal package binaries from CRAN for Windows are built static against GDAL, 
> so include GDAL but not as a shared object. For OSX on CRAN extras, I'm not 
> sure whether the binary rgdal package is built static or not, but GDAL is 
> included.
>
> You are on Linux, so you provide GDAL yourself. If it declares on query 
> (asking the shared object what version it is, which is what rgdal does on 
> startup) that it is 1.8.0dev, then that is what it is. Be aware that 
> downstream packagers may also mistake the version numbers, so asking the 
> shared object is authoritative (unless the releasers of the original source 
> enter the wrong string, as with the current PROJ.4, which declares that it is 
> an as yet unreleased version, these things happen).
>
> Either revert properly to GDAL 1.7.*, or wait for me to fix this for 1.8.*, 
> please. I'll post in this thread when I'm ready, and then you can check the 
> rgdal source from R-Forge, OK?

Could you, or others who may be interested, please try the draft version 
by anonymous checkout from the R-forge rgdal project, or using the source 
package at:

http://spatial.nhh.no/R/Devel/rgdal_0.6-32.tar.gz

If you report back that it suits your needs, I'll submit it to CRAN; if 
you need further changes, please let me know.

Roger


>
> Roger
>
>> 
>> I've searched my disk and find gdal16 and gdal17 but not gdal18
>> Do you know if it is possible to tell rgdal which gdal should be used?
>> 
>> Thanks
>> 
>> Agus
>> 
>> 
>> 
>> 2010/12/11 Roger Bivand <Roger.Bivand at nhh.no>:
>>> On Fri, 10 Dec 2010, Agustin Lobo wrote:
>>> 
>>>> Roger,
>>>> 
>>>> I was not aware that 1.8dev is actually older than 1.7.2 I'll check why I
>>>> have that gdal on the other machine and will try to fix that on my side 
>>>> on
>>>> Monday. But perhaps this problem will come up again for future stable
>>>> versions of 1.8.* ? Anyway, 1.8dev is clearly not a good choice and I 
>>>> have
>>>> to change it.
>>> 
>>> As of GDAL 1.8.0 SVN revision 21234, the problem exists. I'll fix this in
>>> rgdal for the drivers I am familiar with before 1.8.0 is released.
>>> 
>>> Roger
>>> 
>>>> 
>>>> Thanks
>>>> 
>>>> Agus
>>>> 
>>>> 2010/12/10 Roger Bivand <Roger.Bivand at nhh.no>:
>>>>> 
>>>>> On Fri, 10 Dec 2010, Agustin Lobo wrote:
>>>>> 
>>>>>> Roger,
>>>>>> 
>>>>>> is this all you need? I thought sessionInfo was providing everything
>>>>>> needed.
>>>>> 
>>>>> You had given sessionInfo() but that does not report which GDAL you are
>>>>> using. The report unfortunately does not give an svn revision, maybe
>>>>> gdal-config --version does? I develop using 1.7.* GDAL. Your 1.8dev is
>>>>> pretty old, certainly older that released 1.7.3. I can try to build a
>>>>> current GDAL trunk from source next week, if I get time, but this looks
>>>>> like
>>>>> something in your setup (development GDAL that is now stale?).
>>>>> 
>>>>>> The driver is "ESRI Shapefile" as stated in the command, have not 
>>>>>> tested
>>>>>> any other (it does work for raster though, as you mention):
>>>>> 
>>>>> I mentioned four variants of vector drivers, not raster.
>>>>> 
>>>>> Roger
>>>>> 
>>>>>> 
>>>>>>> require(rgdal)
>>>>>> 
>>>>>> Loading required package: rgdal
>>>>>> Geospatial Data Abstraction Library extensions to R successfully loaded
>>>>>> Loaded GDAL runtime: GDAL 1.8dev, released 2010/01/19
>>>>>> Path to GDAL shared files: /usr/local/share/gdal
>>>>>> Loaded PROJ.4 runtime: Rel. 4.7.1, 23 September 2009
>>>>>> Path to PROJ.4 shared files: (autodetected)
>>>>>> 
>>>>>> Thanks
>>>>>> 
>>>>>> Agus
>>>>>> 
>>>>>> 2010/12/10 Roger Bivand <Roger.Bivand at nhh.no>:
>>>>>>> 
>>>>>>> On Fri, 10 Dec 2010, Agustin Lobo wrote:
>>>>>>> 
>>>>>>>> Roger,
>>>>>>>> 
>>>>>>>> It does not for me. The error is solved by deleting files xygcatLO.* 
>>>>>>>> ,
>>>>>>>> while directory xygcatLO may continue to exist.
>>>>>>> 
>>>>>>> Agus,
>>>>>>> 
>>>>>>> With which drivers, OGR version (in header when rgdal loads)? If I
>>>>>>> cannot
>>>>>>> reproduce this, I cannot readily help.
>>>>>>> 
>>>>>>> Roger
>>>>>>> 
>>>>>>>> 
>>>>>>>> Also, I've found that with this version the below command does not
>>>>>>>> save the files within
>>>>>>>> the folder indicated by dsn, but outside. This was not the case in 
>>>>>>>> the
>>>>>>>> past, but do not know if this is
>>>>>>>> because of a change in rgdal, gdal or ubuntu 10.04 (I've changed all 
>>>>>>>> 3
>>>>>>>> since the last time I used writeOGR()).
>>>>>>>> 
>>>>>>>>> writeOGR(xygcatLO,dsn="xygcatLO",layer="xygcatLO", driver="ESRI
>>>>>>>>> Shapefile")
>>>>>>>> 
>>>>>>>> Error in writeOGR(xygcatLO, dsn = "xygcatLO", layer = "xygcatLO",
>>>>>>>> driver = "ESRI Shapefile") :
>>>>>>>> 
>>>>>>>>        GDAL Error 1: Layer 'xygcatLO' already exists
>>>>>>>> Calls: writeOGR -> .Call
>>>>>>>> 
>>>>>>>>> sessionInfo()
>>>>>>>> 
>>>>>>>> R version 2.12.0 (2010-10-15)
>>>>>>>> Platform: x86_64-pc-linux-gnu (64-bit)
>>>>>>>> 
>>>>>>>> locale:
>>>>>>>> [1] LC_CTYPE=en_US.utf8          LC_NUMERIC=C
>>>>>>>> [3] LC_TIME=en_US.utf8           LC_COLLATE=en_US.utf8
>>>>>>>> [5] LC_MONETARY=en_US.utf8       LC_MESSAGES=en_US.utf8
>>>>>>>> [7] LC_PAPER=en_US.utf8          LC_NAME=en_US.utf8
>>>>>>>> [9] LC_ADDRESS=en_US.utf8        LC_TELEPHONE=en_US.utf8
>>>>>>>> [11] LC_MEASUREMENT=en_US.utf8    LC_IDENTIFICATION=en_US.utf8
>>>>>>>> 
>>>>>>>> attached base packages:
>>>>>>>> [1] stats     graphics  grDevices utils     datasets  methods   base
>>>>>>>> 
>>>>>>>> other attached packages:
>>>>>>>> [1] RANN_2.1.2      outliers_0.13-3 rgdal_0.6-30    raster_1.7-2
>>>>>>>> [5] sp_0.9-73       rkward_0.5.4
>>>>>>>> 
>>>>>>>> loaded via a namespace (and not attached):
>>>>>>>> [1] grid_2.12.0     lattice_0.19-13 tools_2.12.0
>>>>>>>> 2010/12/10 Roger Bivand <Roger.Bivand at nhh.no>:
>>>>>>>>> 
>>>>>>>>> On Thu, 9 Dec 2010, Barry Rowlingson wrote:
>>>>>>>>> 
>>>>>>>>>> On Thu, Dec 9, 2010 at 8:56 AM, Agustin Lobo 
>>>>>>>>>> <alobolistas at gmail.com>
>>>>>>>>>> wrote:
>>>>>>>>>>> 
>>>>>>>>>>> Hi!
>>>>>>>>>>> 
>>>>>>>>>>> Could an option overwrite=T (default overwrite=F) be included in
>>>>>>>>>>> writeOGR()?
>>>>>>>>>>> Thanks!
>>>>>>>>>> 
>>>>>>>>>> Submit a Feature Request here:
>>>>>>>>>> 
>>>>>>>>>> http://sourceforge.net/tracker/?group_id=84716&atid=573625
>>>>>>>>> 
>>>>>>>>> No, rgdal is on R-Forge, and a list called rgdal-devel will be
>>>>>>>>> available
>>>>>>>>> from tomorrow.
>>>>>>>>> 
>>>>>>>>>> 
>>>>>>>>>> It looks like it just needs to be a wrapper around OGR's delete
>>>>>>>>>> layer
>>>>>>>>>> function.
>>>>>>>>> 
>>>>>>>>> Contributions welcome. Note that the facility is present for 
>>>>>>>>> rasters,
>>>>>>>>> which
>>>>>>>>> I fould out by accidentally deleting GRASS database objects (for
>>>>>>>>> which
>>>>>>>>> of
>>>>>>>>> course I did not have backups). Is this really needed - which 
>>>>>>>>> drivers
>>>>>>>>> do
>>>>>>>>> not
>>>>>>>>> already overwrite without complaint? These do not complain for me:
>>>>>>>>> driver="ESRI Shapefile"; driver="KML"; driver="MapInfo File";
>>>>>>>>> driver="MapInfo File", dataset_options="FORMAT=MIF".
>>>>>>>>> 
>>>>>>>>> Hope this helps,
>>>>>>>>> 
>>>>>>>>> Roger
>>>>>>>>> 
>>>>>>>>>> 
>>>>>>>>>> Barry
>>>>>>>>>> 
>>>>>>>>>> _______________________________________________
>>>>>>>>>> R-sig-Geo mailing list
>>>>>>>>>> R-sig-Geo at r-project.org
>>>>>>>>>> https://stat.ethz.ch/mailman/listinfo/r-sig-geo
>>>>>>>>>> 
>>>>>>>>> 
>>>>>>>>> --
>>>>>>>>> Roger Bivand
>>>>>>>>> Economic Geography Section, Department of Economics, Norwegian 
>>>>>>>>> School
>>>>>>>>> of
>>>>>>>>> Economics and Business Administration, Helleveien 30, N-5045 Bergen,
>>>>>>>>> Norway. voice: +47 55 95 93 55; fax +47 55 95 95 43
>>>>>>>>> e-mail: Roger.Bivand at nhh.no
>>>>>>>>> 
>>>>>>>>> _______________________________________________
>>>>>>>>> R-sig-Geo mailing list
>>>>>>>>> R-sig-Geo at r-project.org
>>>>>>>>> https://stat.ethz.ch/mailman/listinfo/r-sig-geo
>>>>>>>>> 
>>>>>>>> 
>>>>>>> 
>>>>>>> --
>>>>>>> Roger Bivand
>>>>>>> Economic Geography Section, Department of Economics, Norwegian School
>>>>>>> of
>>>>>>> Economics and Business Administration, Helleveien 30, N-5045 Bergen,
>>>>>>> Norway. voice: +47 55 95 93 55; fax +47 55 95 95 43
>>>>>>> e-mail: Roger.Bivand at nhh.no
>>>>>>> 
>>>>>>> _______________________________________________
>>>>>>> R-sig-Geo mailing list
>>>>>>> R-sig-Geo at r-project.org
>>>>>>> https://stat.ethz.ch/mailman/listinfo/r-sig-geo
>>>>>>> 
>>>>>> 
>>>>> 
>>>>> --
>>>>> Roger Bivand
>>>>> Economic Geography Section, Department of Economics, Norwegian School of
>>>>> Economics and Business Administration, Helleveien 30, N-5045 Bergen,
>>>>> Norway. voice: +47 55 95 93 55; fax +47 55 95 95 43
>>>>> e-mail: Roger.Bivand at nhh.no
>>>>> 
>>>>> _______________________________________________
>>>>> R-sig-Geo mailing list
>>>>> R-sig-Geo at r-project.org
>>>>> https://stat.ethz.ch/mailman/listinfo/r-sig-geo
>>>>> 
>>>>> 
>>>> 
>>> 
>>> --
>>> Roger Bivand
>>> Economic Geography Section, Department of Economics, Norwegian School of
>>> Economics and Business Administration, Helleveien 30, N-5045 Bergen,
>>> Norway. voice: +47 55 95 93 55; fax +47 55 95 95 43
>>> e-mail: Roger.Bivand at nhh.no
>>> 
>>> _______________________________________________
>>> R-sig-Geo mailing list
>>> R-sig-Geo at r-project.org
>>> https://stat.ethz.ch/mailman/listinfo/r-sig-geo
>>> 
>>> 
>> 
>> _______________________________________________
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>> R-sig-Geo at r-project.org
>> https://stat.ethz.ch/mailman/listinfo/r-sig-geo
>> 
>
>

-- 
Roger Bivand
Economic Geography Section, Department of Economics, Norwegian School of
Economics and Business Administration, Helleveien 30, N-5045 Bergen,
Norway. voice: +47 55 95 93 55; fax +47 55 95 95 43
e-mail: Roger.Bivand at nhh.no

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