Review the JTS library it has code to check the orientation of a 
LinearRing as I recall
> Hi all!
>
> I need to know if there is a method that checks if a ring of 
> coordinates is in clockwise or in counter-clockwise. I've found the 
> "counterClockWise" method in the class SDO but I just want to know the 
> orientation of the ring, I don't want to change the orientation. Is 
> there any solution implemented?
>
> Thanks,
>
> Gloria
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