Re: Blunders Was: LRUD: 'From' or 'To' ?

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From: John Halleck (John.Halleck_at_utah.edu)
Date: Wed Jan 24 2001 - 23:49:33 CET 

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Date: Wed, 24 Jan 2001 15:49:33 -0700 (MST)
From: John Halleck <John.Halleck_at_utah.edu>
To: "cavexml_at_cartography.ch" <cavexml_at_cartography.ch>
Subject: Re: Blunders Was: LRUD: 'From' or 'To' ?
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> [...]
> >Vertical shots, where inclination is +-90 degrees, do not have a valid
> >azimuth. Some programs do require you to make up a number (which ...
>
> Would a blank azimuth be valid? Most instances I've seen where data was process, default
> values are assigned. But I think it is well understood within the survey community -- and all the
> programming geeks -- that a 90 inclination means the azimuth can safely be ignored (or
> processed as "0").

  Actually, it strikes me that the azimuth (while not affecting the adjustment at all)
  might be useful as a "hint" of the orientation of any related crosssection.

> [...]

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