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> Thus, distance is poor interchange data...
>
> Good interchange data is position.
The only way I know of to identify spatial position is as a distance
from some agreed origin.
I don't think this argument is useful. All data interchange relies on
the sender and recipient having some shared knowledge.
Michael Kay
Software AG
home: Michael.H.Kay@ntlworld.com
work: Michael.Kay@softwareag.com
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