[Openev-discuss] Openev polygon export bug

[Frederic C. <fre...@ma...>]

I tried to post to openev-announce, but that is probably misplaced, so I'm
reposting here :
 
Dear list,
juste wanted to report a suprising behaviour about shapefile export.
 
When exporting a vector as a shapefile, using menu "File->Save Vector
layer", I always obtain inversed polygons :
the areas with a filled inside are exported counterclockwise, and those with
filled outside are exported clockwise.
This can be eaisly checked with ogrinfo -al <myshapefile.shp>
 
Note : generated shapefiles can then be reread afterwards by either openEv
or GDAL, since they apply inside/outside auto detection, and don't rely on
the shapefiles rings beeing properly ordered.
 
I applied a quick patch, systematcally reversing each polygon's vertices,
and it seems to work fine (See attached file, line 486->513)
 
has this issue already been detected / fixed ?  I'm using a version of
OpenEv from CVS
(:pserver:ano...@op...:2401/cvsroot/openev,
extracted around July 2006)
 
regards,
Frederic Claudel