[GRASS-user] Encountering an error importing shapefiles with v.in.ogr

[Thomas Adams]

Maciej,

Very interesting… I did as you suggested. I ran v.in.ogr from the 
command line and it worked *perfectly*! So, I deleted the vector file -- 
and using the same options -- the import failed using the gis.m GUI!!! 
The options I used in both cases were:

min_area=0.0001
snap=-1
--overwrite
-o

I could email the shapefile (*tar.gz file is about 1.6 MB) to you 
(lat-long coordinates). The shapefile consists of 686 areas.

Regards,
Tom


Maciej Sieczka wrote:
> Thomas Adams wrote:
>   
>> List:
>>
>> I am using GRASS 6.2.1 and I (sometimes) encounter an error importing a
>> shapefile with v.in.ogr. The vector boundaries import fine, but gis.m
>> crashes. I can re-start gis.m and load the vector file that I just
>> *attempted* to import and it displays fine. However, I get a warning:
>>
>> Cannot display areas, topology not available.
>>     
>
> This might mean that v.in.ogr failed (eg. a segmenation fault) at work,
> while such errors are not printed to the tcl/tk GUI output. Please try
> to run the same v.in.ogr command from the command line. Let us know if
> there is any error printed, which was missing in GUI.
>
>   
>> I am virtually certain that I was able to successfully import this and
>> other shapefiles in previous versions of GRASS (GRASS 4.x & GRASS 5.x).
>> The shapefiles files include the *.dbf, *.shp, and *.shx files, which I
>> think, should be enough. If I import shapefiles from the US National
>> Atlas (created by the USGS), I have no problems. It seems that with all
>> shapefiles generated by my office using ArcGIS 9.0, I have this problem.
>>
>> Does anyone have suggestions as to what could be going on?
>>     
>
> To check whether there is a possible error in your shapefile, inspect
> the ogrinfo -al -so output, try to open it in QGIS, OpenEV or else. Any
> oddities? Does ogr2ogr dump.shp your_input.shp work? Does it create a
> copy or maybe something you would not expect?
>
> Can you put a problematic sample somewhere for dowload?
>
> Cheers,
> Maciek
>   


-- 
Thomas E Adams
National Weather Service
Ohio River Forecast Center
1901 South State Route 134
Wilmington, OH 45177

EMAIL:	thomas.adams at noaa.gov

VOICE:	937-383-0528
FAX:	937-383-0033