Re: Other Definitions - Raw vs Field

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From: Richard Knapp (richfk_at_attglobal.net)
Date: Sun Oct 20 2002 - 12:12:40 CEST


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From: "Richard Knapp" <richfk_at_attglobal.net>
To: "cavexml_at_cartography.ch" <cavexml_at_cartography.ch>
Date: Sun, 20 Oct 2002 06:12:40 -0400 (EDT)
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Subject: Re: Other Definitions - Raw vs Field
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On Fri, 18 Oct 2002 09:04:32 -0600, P A Hill & E V Goodall wrote:

> >>>>===================================================================================
> >>>>Field data The original data and sketches recorded in the field, e.g.
> >>>>paper-based, or images thereof, or data still stored and observable in
> >>>>an instrument.
> >>>>===================================================================================

> >>>>========================================================================
> >>>>Raw data Field data when converted unchanged into character-based,
> >>>> machine-readable form, or downloaded from an instrument.
> >>>>========================================================================

> > The question is how do I scan in a sketch or save an image of my Field
> > data without it becoming Raw data, even though it is not being converted
> > to CBMR form? The paper sketch is Field data, so what is a scanned sketch?
>
> What do you mean "without it becoming"? Peter is trying to define the
> meaning of these terms so that everyone uses them consistently.

Okay. So how does a scanned page become character-based machine-readable
(CBMR)? or is CBMR the same as binary?

> The original page from the book still in the old muddy survey book, or a
> photocopy of the page, or a scan image of the page, or a scanned image
> stored in a file imbedded in CaveXML is refered to by these definitions as
> "field data" and not "raw data". Raw data is "text" in some format.

So this is only measurements, not any images scanned or pictures or etc?

> "XML is used" what do you mean here. A particular XML based tag format
> might have previsions for imbedding an image of "field data" or it may not.
> First we need to say what field data is then we discuss and ponder whether
> and how we might stick it CaveXML

XML does not embed images. It provides a link to the image. The only way
to embed an image in XML would be to use the proposed Binary XML. From the
XML Spec:

"Notation Node

This interface represents a notation declared in the DTD. A notation
either declares, by name, the format of an unparsed entity (see section
4.7 of the XML 1.0 specification [XML]), or is used for formal declaration
of processing instruction targets (see section 2.6 of the XML 1.0
specification [XML]). The nodeName attribute inherited from Node [p.40] is
set to the declared name of the notation." (p 88 of XML DOM3 Specification
dated 9/13/2001).

> Richard, somehow I think you're making a different distinction between
> "field" and "raw" than I am. How do you think we are different? How do you
> think you are or want to be different than Peter is suggesting.

Evidently. But please reference the definations quoted (from Peter's
post). I don't see
how a sketch or image can make the "jump" from Field data to Raw data if
the given constraints are to be maintained.


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