On 09/05/15 17:54, Sereib wrote:
> Hi,
> 
> maybe it's better to say, you only ever need
> 
> 1) Two points, and
> 
> 2) The side condition that these two points are opposite corners
> 

Indeed. I didn't make my self clear enough - mea culpa

John
-- 
Protect the Earth
It was not given to you by your parents
You hold it in trust for your children

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