[R-sig-Geo] R / ArcGIS
Roger.Bivand at nhh.no
Fri Feb 17 15:00:37 CET 2012
On Fri, 17 Feb 2012, Edzer Pebesma wrote:
> On 02/17/2012 12:18 PM, Roger Bivand wrote:
>> On Fri, 17 Feb 2012, Michael Denslow wrote:
>>> On Fri, Feb 17, 2012 at 2:15 AM, Edzer Pebesma
>>> <edzer.pebesma at uni-muenster.de> wrote:
>>>> I might succeed meeting with some ESRI / ArcGIS folks at AAG next week;
>>>> I'm in touch with them in particular about linking R to ArcGIS.
>>>> I would like to find out if any of you has been successful (or
>>>> unsuccessful) in reading or writing ArcGIS geodatabase files directly
>>>> from R, by using the rgdal driver, or by some other means.
>>> Thanks for working on this. I have had success reading .mdb files but
>>> not .gdb files. I typically use rgdal for this sort of thing. I was
>>> under the impression that GDAL support for .gdb files started with
>> This is off-topic here - the topic here is space-time data.
> Not completely, as I started two topics in one thread. The first one,
> interfacing ArcGIS personal geodatabases through rgdal (OGR drivers) has
> been dealt with here:
OK, my misunderstanding. Wrt. file geodatabase access, the point would be
to get them to open the API code, but it likely links to Arc DLLs, rather
than being free-standing. So personal geodatabase access is OK in GDAL
1.9.0 built against an ODBC provider, as in the version already available
for forthcoming R 2.15.0, but file geodatabase access must have the API
SDK from ESRI.
I wrongly focused on the second theme as though it was the only one.
> and more recently with the closed source ArcGIS 10.0 API here:
> followed by:
> and follow-ups would be easier findable when added to that thread.
> The second topic addressed dealing with space-time features between R
> and ArcGIS, for which rgdal/OGR could not be a solution, AFAICS.
>> Your question is answered with respect to Personal geodatabases on the
>> Windows platform in thread:
>> (link to gmane because it crosses a month boundary). You did join that
>> thread, and said there that you are using OSX. You were able to open
>> Pgeo files, I think. Are you thinking of the new file geodatabase
>> format? If you read:
>> you will see that you must build GDAL linking to the proprietary FileGDB
>> API SDK, which requires an ESRI global account. Reading the OGR format
>> file would tell you that, no?
>>> I am very interested in this issue since I am a regular user of ArcGIS
>>> (teaching) and R (research).
>>>> Another issue is reading/writing spatio-temporal features (netcdf does
>>>> spatio-temporal grids/arrays pretty well it seems); rumours go that
>>>> ArcGIS might, in the near future, support reading/writing SpatiaLite.
>>>> With best regards,
>>>> Edzer Pebesma
>>>> Institute for Geoinformatics (ifgi), University of Münster
>>>> Weseler Straße 253, 48151 Münster, Germany. Phone: +49 251
>>>> 8333081, Fax: +49 251 8339763 http://ifgi.uni-muenster.de
>>>> http://www.52north.org/geostatistics e.pebesma at wwu.de
>>>> R-sig-Geo mailing list
>>>> R-sig-Geo at r-project.org
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e-mail: Roger.Bivand at nhh.no
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