OK, thanks, will revise at next release.

Roger

On Wed, 11 Oct 2017, Markus Metz wrote:

Dear Roger,

On Wed, Oct 11, 2017 at 2:36 PM, Roger Bivand <roger.biv...@nhh.no> wrote:

Dear Markus,

I can't see how to get the same strings out without conditioning,

with

ogrDGRASSs <- gsub(" ", "_", trimws(sapply(strsplit(ogrDGRASS, " [(]"),
"[", 1)))

because for v.in.ogr -f and GDAL >= 2.0, GRASS < 7.3 presents for example:

GML (rw): GML
SQLite (rw): SQLite
ESRI Shapefile (rw): ESRI Shapefile
GeoJSON (rw): GeoJSON

(readOGR used the string following ":" )

The structure of the output of r.in.gdal -f and v.in.ogr -f is

<short name> (<read/write flags>): <description>

readOGR must use the string preceding "(". Anything following ":" is a
description which can change any time. Before GDAL 2.0, there was nothing
else but the short name for OGR drivers, therefore the short name was used
as description.


and >= 7.3:

GML (rw+): Geography Markup Language (GML)
SQLite (rw+): SQLite / Spatialite
ESRI Shapefile (rw+): ESRI Shapefile
GeoJSON (rw+): GeoJSON

where the string after ":" is different.

the string before the read/write flags, i.e. before "(" is identical.

If we can depend on all GRASS < 7.3 having the same short name position,
yes, I could avoid conditioning by changing the string processing to suit
= 7.3 and apply it to all previous; I chose not to modify the string
processing for < 7.3 to avoid any problems I can't readily check.

For all versions of GRASS 7 and all versions of GDAL, the short name
position has been and continues to be the first position. For v.in.ogr -f,
the short name may also appear after ":", but only if there is no long name.

Best regards,

Markus


Best wishes,

Roger


On Wed, 11 Oct 2017, Markus Metz wrote:

Dear Roger,

On Wed, Oct 11, 2017 at 1:41 PM, Roger Bivand <roger.biv...@nhh.no>
wrote:


New version submitted to CRAN; until then:

install.packages("rgrass7", repos="http://R-Forge.R-project.org";)

should pick up the latest version; #3425 closed. Please report back

whether this works ... (conditioning on GRASS version to create
comparable
driver name strings).

I don't think there is a need to condition on the GRASS version, see my
suggestion in #3425

Markus M


Roger


On Wed, 11 Oct 2017, Roger Bivand wrote:

Thanks for trying to contribute. The GH site is not the rgrass7

development site - that is SVN on R-forge (GH is a very preliminary trial
site for using sf vector representation in R, and maybe raster raster
representation (or forthcoming stars), instead of sp classes).


GRAS 7.2.2 works OK with the current logic checks; I can reproduce the

issue in 7.3 (latest); there is a change in vector/v.in.ogr/main.c
returning the DriverLongName for GDAL >= 2.0; in GRASS 7.2.2, there is no
such change. Could the GRASS developer responsible for this obvious
regression provide an additional flag in v.in.ogr (and v.external,
v.out.ogr) to permit backwards compatibility? See line 387, needs to
change


#if GDAL_VERSION_NUM >= 2000000

to add a !backwards_compatible test too.

I'll hold off trying to fix this in rgrass7 because it is a regression.

I can add the backwards_compatibility=TRUE flag to readVECT() once it is
exposed.


This is:

https://trac.osgeo.org/grass/ticket/3425

Roger

On Tue, 10 Oct 2017, Ahmadou Dicko wrote:

In the readVECT function, internally v.in.ogr is used to list the

supported

vector format and it is compared the format available using rgdal (or

sf).

However, using v.external instead of v.in.ogr fix this single problem
because of the way the output is different (in form).
For example, if you use v.in.ogr you will have to compare


SQLite_/_Spatialite


(GRASS) to SQLite (R) and they are not the same.

I tried to send a PR, let me know if it works

https://github.com/rsbivand/rgrass7/pull/1

Best,

On Tue, Oct 10, 2017 at 9:29 PM, Helmut Kudrnovsky <hel...@web.de>

wrote:


Gesendet: Dienstag, 10. Oktober 2017 um 23:24 Uhr
Von: "Ahmadou Dicko" <dicko.ahma...@gmail.com>
An: "Helmut Kudrnovsky" <hel...@web.de>
Cc: "Roger Bivand" <roger.biv...@nhh.no>, "
grass-stats@lists.osgeo.org"

<


grass-stats@lists.osgeo.org>


Betreff: Re: [GRASS-stats] rgrass7 - SQLite and GML drivers not

working


for readVECT



Hi everyone,

I think that using v.external -f (instead of v.in.ogr -f) can fix
this


issue (didn't try yet)




execGRASS("v.external", flags = "f", intern = TRUE)
[1] "ARCGEN"         "AVCBin"         "AVCE00"
[4] "AeronavFAA"     "AmigoCloud"     "BNA"
[7] "CAD"            "CSV"            "CSW"
[10] "Carto"          "Cloudant"       "CouchDB"
[13] "DGN"            "DXF"            "EDIGEO"
[16] "ESRI_Shapefile" "ElasticSearch"  "GFT"
[19] "GML"            "GPKG"           "GPSBabel"
[22] "GPSTrackMaker"  "GPX"            "GeoJSON"
[25] "GeoRSS"         "Geoconcept"     "Geomedia"
[28] "HTF"            "HTTP"           "Idrisi"
[31] "JML"            "JPEG2000"       "KML"
[34] "MSSQLSpatial"   "MapInfo_File"   "Memory"
[37] "MySQL"          "ODBC"           "ODS"
[40] "OGR_GMT"        "OGR_GRASS"      "OGR_PDS"
[43] "OGR_SDTS"       "OGR_VRT"        "OSM"
[46] "OpenAir"        "OpenFileGDB"    "PCIDSK"
[49] "PDF"            "PGDUMP"         "PGeo"
[52] "PLSCENES"       "PostgreSQL"     "REC"



in a quick check, there is no difference in available formats.










--
Roger Bivand
Department of Economics, Norwegian School of Economics,
Helleveien 30, N-5045 Bergen, Norway.
voice: +47 55 95 93 55; e-mail: roger.biv...@nhh.no
Editor-in-Chief of The R Journal,
https://journal.r-project.org/index.html
http://orcid.org/0000-0003-2392-6140
https://scholar.google.no/citations?user=AWeghB0AAAAJ&hl=en
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--
Roger Bivand
Department of Economics, Norwegian School of Economics,
Helleveien 30, N-5045 Bergen, Norway.
voice: +47 55 95 93 55; e-mail: roger.biv...@nhh.no
Editor-in-Chief of The R Journal, https://journal.r-project.org/index.html
http://orcid.org/0000-0003-2392-6140
https://scholar.google.no/citations?user=AWeghB0AAAAJ&hl=en


--
Roger Bivand
Department of Economics, Norwegian School of Economics,
Helleveien 30, N-5045 Bergen, Norway.
voice: +47 55 95 93 55; e-mail: roger.biv...@nhh.no
Editor-in-Chief of The R Journal, https://journal.r-project.org/index.html
http://orcid.org/0000-0003-2392-6140
https://scholar.google.no/citations?user=AWeghB0AAAAJ&hl=en
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