CGAL users discussion list

["Moore Rollo (THE ROYAL MARSDEN NHS FOUNDATION TRUST)" <>]

greetings all; Efi, is this in the manner of the halting problem?

 

the explanation being at a different level to the problem itself.

 

{regards; Rollo}

 

[deletia]
Or is it just that for "invalid" polygons the output is undefined, and
maybe sometimes right and sometimes wrong?

IMHO not checking for validity seems a good way to lead to pitfalls,
but I'm not an expert programmer so I'd appreciate an explanation as
to why things are the way they are.

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....
 

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