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spgrass6, readVECT and overwriting ?

2 messages · Mathieu Rajerison, Rainer M Krug

Original
Mathieu Rajerison
# 
Hi,

I'm using spgrass6 and I use readVECT function in a loop.

Using it causes an error because it doesn't overwrite the the temporary
shapefile..
with_c: argument reversed from version 0.7-11 and in GRASS 6
ERROR :Layer <zoneBDTO> already exists in OGR data source
        'D:/GRASSDB/paca/mapset/.tmp'
OGR data source with driver: ESRI Shapefile
Source: "D:/GRASSDB/paca/mapset/.tmp", layer: "zoneBDTO"
with 770 features
It has 3 fields
Warning message:
running command 'v.out.ogr.exe -e -c input=zoneBDTOPOthin2 type=line
layer=1 dsn=D:/GRASSDB/paca/mapset/.tmp olayer=zoneBDTO
format=ESRI_Shapefile' had status 1


I wonder how to specify to spgrass that I want to overwrite the file in
readVECT, although I know using execGRASS and v.out.ogr with the
appropriate overwrite flags would do the job.

Thanks in advance for the answer..

Mathieu
Rainer M Krug
# 
Mathieu Rajerison <mathieu.rajerison at gmail.com> writes:
One reason why probably nobody replied is that

1) no version information about R and GRASS (there are several GRASS 6 versions)
2) no session information i.e. package versions used
3) no information about the OS (I guess it is windows based on the
Source path above)
4) no reproducible example which could be easily done by using the GRASS 
5) as far as I can see, in the newest version of spgrass6 there is no function readVECT()

So I would suggest to provide the info and give a reproducible example
using a GRASS sample dataset
(see https://grass.osgeo.org/download/sample-data/ - the Spearfish
dataset is probably the best)

I will happily look int this if you can provide the necessary info.

Cheers,

Rainer