[ms4w-users] How to Repair Invalid Geometries???

[Jeff McKenna]

My guesses:

open source way: use GRASS.  when importing shapefiles with the v.in.ogr 
command topology is automatically checked and you can clean as well 
(http://grass.itc.it/grass63/manuals/html63_user/vectorintro.html)

"other" way: try converting to a coverage and then use the "clean" and 
"build" utilities in Arc, and then convert back to shp.  just a guess

Note: I see that you also sent this to the PostGIS email list. 
Cross-posting is bad-mojo.  You should have probably sent this question 
just to the PostGIS list (since it has nothing to do with MS4W).

jeff



Orlando Giovanny Solarte Delgado wrote:
> Hi list.
>  
> I am developing geodatabase with PostGIS 1.2. I am tryin load shapefile 
> using shp2psql method from postgis. However, when I load shapefile
> using sql. It say: "NOTICE:  Ring Self-intersection", "violates check 
> constraint "geometry_valid_check".
>  
> Before to load shapefile, I test using chek_geomatry tool from ArcTools 
> from ArcGIS 9.2, it say: "Valid geometries", but postgis say  "violates 
> check constraint "geometry_valid_check".
>  
> So. How I can repair may shapefile before load postgis??. There is some 
> tool different Check and repair Geometrias from ArcGIS?
>  
> Thanks.
> 


-- 
Jeff McKenna
DM Solutions Group Inc.
http://www.dmsolutions.ca