Viv,

I'm also in favour of counterclockwise angles. That's the way I learnt it and I have a little trouble in adapting to the other direction.
Same with top, height vs bottom/height.

Having said that, good luck with the other approach

You know where to find us if necessary ;-)

Cheers,
Gregory
____________
>Hi,
>
>>
>Seems OK to me. Haven't gone through the logic since you say it works all right.
>>
>
>Just looked overly-complicated to me but I suppose, if it works, ....
>Looks like we may take another approach to the whole thing anyway.
>Regards,
>Viv