Re: defaulting units for measurements

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From: Richard Knapp (gyp_caver_at_yahoo.com)
Date: Mon Feb 12 2001 - 13:48:59 CET 

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From: "Richard Knapp" <gyp_caver_at_yahoo.com>
To: "cavexml_at_cartography.ch" <cavexml_at_cartography.ch>
Date: Mon, 12 Feb 2001 07:48:59 -0500 (EST)
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Subject: Re: defaulting units for measurements
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>Garry Petrie wrote:

>> > I think it would be nice if the point information had an (optional) tag
>> > that was a unique number. It would make some sorts of processing easier
>> > if there was already a number, and even easier if (in the case of N points)
>> > the numbers ran 1 .. N.

>> Sounding a little like keys into a table in a database, very good conclusion.
>> A stations's
>> key would only exist for that particular version of a CaveXML file. Changing
>> the data
>> after reading it and then re-writing it would of course generate a new and probably
>> different set of station keys.

Would it be better to generate keys for each station or each survey? I'm thinking specifically of the
way Survex handles data. If the key to each station was changed each time the data was saved,
would this change the way the links between surveys would have to be handled? Wouldn't there
need to be, like in Survex, a way to define or equate stations and make sure certain stations are
the "same"?

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