[R-sig-Geo] rgdal retirement

[Roger Bivand]

On Sun, 19 Sep 2021, Michael Sumner wrote:

> Hi Jean-Luc, if the packages mentioned don't yet cover it, you can get 
> ogrInfo and ogrFIDs with a combination of vapour's vapour_read_names() 
> (for FID), vapour_geom_summary()  (for FID and type) and 
> vapour_layer_info().

In sf you can use the fid_column_name= argument to st_read() to retreive 
the FIDs with the geometries, but I think not the FIDs alone. orgInfo grew 
over time and became unwieldy, are there specific components that you use? 
Might sf::st_read() be modified to report these (and return FIDs) without 
reading the data and geometries? Using vapour is of course a good way to 
proceed, and very useful for cross-checking (Do rgdal and vapour return 
the same values, I hope so, vapour is much cleaner).

>
> For make_EPSG() it's probably time to hit the proj.db more directly and I'd
> be happy to have a look at that.

Right, RSQLite can handle this quite well, but sometimes the names of 
tables and fields in tables change.

Roger

>
> Cheers, Mike
>
> On Sun, Sep 19, 2021 at 9:35 AM Jean-Luc Dupouey <jean-luc.dupouey using inrae.fr>
> wrote:
>
>> Dear Roger Bivand,
>>
>> I read your message about the rgdal retirement. It was a nice package
>> and an important step in the development of R-spatial.
>>
>> I looked for alternatives for the functions I was using, but I didn't
>> find them all. Those I am missing:
>>
>> . ogrInfo
>> . ogrFIDs
>> . make_EPSG
>>
>> Do you know of any (more or less) equivalent functions in the packages
>> you mentioned that have taken over from rgdal?
>>
>> Thanks in advance,
>>
>> Jean-Luc Dupouey
>>
>> --
>> INRAE
>> UMR Silva
>> F-54280 Champenoux
>> France
>>
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>
>
>

-- 
Roger Bivand
Emeritus Professor
Department of Economics, Norwegian School of Economics,
Postboks 3490 Ytre Sandviken, 5045 Bergen, Norway.
e-mail: Roger.Bivand using nhh.no
https://orcid.org/0000-0003-2392-6140
https://scholar.google.no/citations?user=AWeghB0AAAAJ&hl=en