CGAL users discussion list

[Shriramana Sharma <>]

On Thu, Nov 8, 2012 at 5:00 AM, Efi Fogel 
<>
 wrote:
> Checking for validity, sometimes, is more expensive then running the
> procedure itself.
> If we could check for validity, perhaps we could have also fix those invalid
> polygons....

Thanks for this reply. However, this still does not answer the
question: In *what* way are these "invalid", if predicates and
operations will equally work on these as on the "properly oriented"
ones?

-- 
Shriramana Sharma