HDTenEightyP/NetNews huggingface dataset:
From: ron@topaz.bds.com (Ron Natalie)
Newsgroups: comp.infosystems.gis
Subject: Re:      Re: DLG files
Date: 15 Oct 1992 23:00:29 GMT
Organization: BDS Systems
Distribution: world
NNTP-Posting-Host: topaz.bds.com

> The USGS publishes DATA USER'S GUIDES for 1:24,0000, 1:100,000 and
> 1:2,000,000 scale DLGs.  They should be in any library that is a federal
> depository, or you can contect the National Carographic Information Center,
> USGS, 507 National Center, Reston, VA 22092 Tel (703) 860-6045

I got mine at the ESIC, cost me a whole dollar.

If you want to buy stuff from USGS through the mail, the walkin ESICs
just refer you to the Denver one:  303-236-5829.

-Ron
Comments: Gated by NETNEWS@AUVM.AMERICAN.EDU
Newsgroups: comp.infosystems.gis
Date:         Wed, 7 Oct 1992 17:30:16 EST
              <GIS-L@UBVM.BITNET>
From:         "(Robert Linton)" <rlinton@GISJOH.MUR.CSU.EDU.AU>
Subject:      Public Domain PC HpTerm Emulators

Can anyone help me out in the search for a public domain PC based HpTerminal
 Emulator.

I have heard of the NCSA Telnet package, which supports Tektronics, and are
wondering if there is something simililar that supports the HpTerm Graphics
language.




Regards,

Rob Linton,
Charles Sturt University - Murray,
Australia.
Net: rlinton@csu.edu.au
From: RSIU42A@SAUPM00.BITNET (Trevor D. Rotzien)
Newsgroups: comp.infosystems.gis
Subject: NSERC Address
Date: 11 Oct 92 07:56:27 GMT
              <GIS-L@UBVM.BITNET>
Organization: King Fahd University of Petroleum and Minerals, S.A.
Comments: Gated by NETNEWS@AUVM.AMERICAN.EDU
X-Acknowledge-To: <RSIU42A@SAUPM00.BITNET>

Hello.

Does anyone on GIS-L have the mailing address for the National Science
and Engineering Research Council (Canada) handy?

Please reply off-list to: RSIU42A @ SAUPM00.BITNET

Thanks!

----------------------------------------------------------------------
trevor d. rotzien         marine science group
k.f.u.p.m. box 118        water resources & environment division
dhahran 31261             the research institute
saudi arabia              king fahd university of petroleum & minerals

email: rsiu42a@saupm00.bitnet
office: -966-03-860-4316
----------------------------------------------------------------------
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Newsgroups: comp.infosystems.gis
Date:         Wed, 14 Oct 1992 11:00:26 +1000
              <GIS-L@UBVM.BITNET>
From:         jhr@GDWB.OZ.AU
Subject:      Re: Scale as an excuse

> And, for those who think that scale is good enough - what accuracy
> is represented by a scale of 1:50,000?
>

Depends on which country, and what "National" or local >> standards<< were being
adhered to, if at all.
Comments: Gated by NETNEWS@AUVM.AMERICAN.EDU
Apparently-To: gis-l@ubvm.cc.buffalo.edu
Newsgroups: comp.infosystems.gis
Date:         Wed, 7 Oct 1992 07:04:00 PDT
              <GIS-L@UBVM.BITNET>
From:         07-Oct-1992 0946 <rdaigle@ASIC.ENET.DEC.COM>
Subject:      Geotimes address?

Would someone please supply the address and subscription rate for GEOTIMES?

Thanks,

~Dick Daigle
 Digital Equipment Corporation

 rdaigle@asic.enet.dec.com
Comments: Gated by NETNEWS@AUVM.AMERICAN.EDU
Newsgroups: comp.infosystems.gis
Date:         Mon, 12 Oct 1992 15:01:00 EDT
              <GIS-L@UBVM.BITNET>
From:         "SCHLESINGER, PETER" <i43_ps02@RED.WHOI.EDU>
Subject:      Re: DCW data format ?

I'm sorry, I need to be hand-held like some others I know; the DOS software
in the kit that comes with it doesn't appear to put it in any form which is
comparable with any other format I'm used to expect. There is "C" source
code for VPFVIEW, which is interesting, but it doesn't do it for me either.
Please be more specific about how DCW is decoded. Thanks.
Peter Schlesinger
The Woods Hole Research Center
i43_ps02@red.whoi.edu
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MIME-version: 1.0
Content-transfer-encoding: 7BIT
Newsgroups: comp.infosystems.gis
Date:         Fri, 16 Oct 1992 10:17:32 -0400
              <GIS-L@UBVM.BITNET>
From:         E3FAEDF@SAE.TOWSON.EDU
Subject:      MAGI

I NEED INFORMATION ABOUT MAGI [MARYLAND GEOGRAPHIC INFORMATION] A RASTER
BASED GIS.

IS IT AVAILABLE TO MARYLAND'S PUBLIC COLLEGES FREE OF CHARGE?  IS IT
AVALIABLE AT ALL?  IS IT IDRISI COMPATIBLE?  IF OBTAINABLE AT ALL,
WHERE?

THANKS FOR ANY HELP!!!!
From: damour@rocket.sanders.lockheed.com (Kevin Damour)
Newsgroups: comp.infosystems.gis
Subject: GPS -> map coordinates (meters) Question
Keywords: gps, x-y coordinates
Date: 16 Oct 92 13:38:00 GMT
Organization: Lockheed Sanders, Inc.


  Hello,

  I would like to take lat,long,alt values from a GPS unit (Magnavox MX4200)
and convert them into a x,y coordinate system in meters.  I have used a
quick conversion based on a sphere, but I wanted to know if there is a
more standard method (the GPS unit gives East Velocity and North Velocity
in meters/sec but not just coords. in meters.  Integration would be far too
noisy).
  Is there some reference material available on this subject or maybe a
FAQ entry?

  Thank you for any help you can provide,

      Kevin

        -----------------------------------------------------
Dr. Kevin T. Damour                              Lockheed Sanders Inc.
Principal Electrical Engineer                    PO Box 868, MER24-1583C
Signal Processing Center of Technology           Nashua, NH 03061-0868

  (usenet)      ...!uunet!rocket!damour            voice (603) 885-9122
  (internet)    <damour@rocket.sanders.com>        fax   (603) 885-0631
Comments: Gated by NETNEWS@AUVM.AMERICAN.EDU
Newsgroups: comp.infosystems.gis
Date:         Wed, 14 Oct 1992 07:55:00 PDT
              <GIS-L@UBVM.BITNET>
From:         "(Chris Hermansen)" <clh@TFIC.BC.CA>
Subject:      Re: Scale as an excuse

Mark Johnson writes:
>
>I've noted the recent discussion on "What is 1:50,000?" with great
>interest.  It seems to me that most of the answers skirt the issue:
>"scale" represents (poorly) some VERY important characteristics of
>the data - accuracy being one of those.
>
>Surely we would be MUCH better off if we were to include accuracy as
>an item in the data dictionary instead of scale.
>
>And, for those who think that scale is good enough - what accuracy
>is represented by a scale of 1:50,000?

I'm not sure that mappers, at least, confuse scale and accuracy; I agree
with Mark that those who use scale to "mean" accuracy are somewhat off base.

Nonetheless, scale does carry along baggage with it, such as accuracy and
minimum feature size, for a some very good reasons.  For one, it does imply
the minimum "representable" size as being somehow related to the *maximum*
size of a feature that can "disappear" in the pen's ink (I use the term "pen"
somewhat loosely here).  For another, accuracy is really only important
to within that pen width as well.

This is especially important to remember when considering the scale of the
*source* documents from which the map or digital dataset was derived, as
opposed to the intended scale of reproduction.

1:70,000 photos don't make good 1:5,000 maps.

Chris Hermansen                         Timberline Forest Inventory Consultants
Voice: 1 604 733 0731                   302 - 958 West 8th Avenue
FAX:   1 604 733 0634                   Vancouver B.C. CANADA
clh@tfic.bc.ca                          V5Z 1E5

C'est ma facon de parler.
Comments: Gated by NETNEWS@AUVM.AMERICAN.EDU
Newsgroups: comp.infosystems.gis
Date:         Thu, 15 Oct 1992 10:10:00 EDT
              <GIS-L@UBVM.BITNET>
From:         "SCHLESINGER, PETER" <i43_ps02@RED.WHOI.EDU>
Subject:      RE: TM Georeferencing

You might try calling Richard Irish, who's with STX's processing group,
at 301-794-5030. He should be able to explain away the problem or point
towards a solution.
Peter Schlesinger
The Woods Hole Research Center
i43_ps02@red.whoi.edu
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Newsgroups: comp.infosystems.gis
Date:         Fri, 9 Oct 1992 16:13:00 GMT
              <GIS-L@UBVM.BITNET>
From:         STGG8004@IRUCCVAX.UCC.IE
Subject:      Re: 3-d tactile GIS output

Have you seen the following?

"Tactile map output from geographical information systems: the challenge and
its importance" by M.R.C. Coulson. International Journal of Geographic
Information Systems Vol 5 Number 3, 1991, pp 353 - 360.

Also, I suggest you contact Andrew Tatham, at the Department of Geography,
King's College, London. He is heavilly into tactile mapping for the blind,
and has a lot of contact with others in the field.

Darius Bartlett
Comments: Gated by NETNEWS@AUVM.AMERICAN.EDU
Newsgroups: comp.infosystems.gis
Date:         Wed, 7 Oct 1992 07:08:23 -0400
              <GIS-L@UBVM.BITNET>
From:         "(Theodore B. Samsel)" <tbsamsel@DG11SVARMD.ER.USGS.GOV>
Subject:      3-d tactile GIS output

Does anyone have any experience with turning DEM type data
into, say a "sculpture"? A local science museum director and
I are toying with the idea of building a model of the state
of Virginia that will allow interpretive activities to occur
on this model. This would not be unlike the US COE's scale
model of the Mississippi in Vicksburg....
  Thanks,
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~`~~~~
Ted Samsel.......TBSAMSEL@QVARSA.ER.USGS.GOV..(use this!)
Comments: Gated by NETNEWS@AUVM.AMERICAN.EDU
Newsgroups: comp.infosystems.gis
Date:         Thu, 8 Oct 1992 08:05:49 CDT
              <GIS-L@UBVM.BITNET>
Comments:     Converted from PROFS to RFC822 format by PUMP V2.2X
From:         Doug Behm <DBEHM@UA1VM.BITNET>
Subject:      Highway shield markersets in ARC/INFO

Look in ACAD 11.0 reference manual, appendix A, pp465-467. Use the text font
symap which has several highway shields.
Comments: Gated by NETNEWS@AUVM.AMERICAN.EDU
X-Mts: smtp
Newsgroups: comp.infosystems.gis
Date:         Fri, 16 Oct 1992 13:31:15 -0400
              <GIS-L@UBVM.BITNET>
From:         fielding@GEOLOGY.CORNELL.EDU
Subject:      Re: annotating SURFACEDRAPEs in ARC/INFO?

I wrote:
> I have been making some nice 3D perspective views using SURFACEDRAPE in
>ARC/INFO v. 6.0.1, and I would now like to add some annotations like a scale
>bar and north arrow, but not "draped" over the topography rather "floating"
>next to it. Can someone share hints on doing this?

I wanted to clarify this. I know that I can simply draw annotation by
estimating the "north" direction and the approximate scale. What I was
looking for was a way to draw things, like a scale bar or 3D axes, *in
the 3D perspective coordinate system*. I guess this would require
something like setting
UNITS DRAPE or something like that, which may not yet be possible?
Edward Tufte insists that 3D visualization without annotation to give a
reference frame is nearly worthless, at best, or misleading, at worst.

			++Eric Fielding
eric@geology.cornell.edu
From: isw@vnet.ibm.com (Ian S Worthington)
Date: Wed, 14 Oct 92 01:19:59 BST
Newsgroups: comp.infosystems.gis
Subject: Re: Confused about digital scales
Disclaimer: This posting represents the poster's views, not those of IBM
News-Software: UReply 3.0

             and many others!

>
>The scale 1:50,000 *does* have a physical reality, and that is the reality of
>the map that was originally digitized, which should be traceable back to a
>representation of actual ground features.  Using the scale as a measure of
>accuracy carries certain assumptions:
> .
> .
> .

Many thanks to all those who are responding to my novice questions here and
direct to me. May I try and example to help clarify the matter?

If I had a database which had a stated accuracy of, say, 25m, I would
know that, if I reproduced a map on a monitor, then I should not allow
the user to zoom in to a greater level of detail than 1 pixel = 25m.
Similarly, if I plotted, or printed, from this database, the maximum
size I should allow would be <the minumum reproducable physical
distance> = 25m.  I think this is correct, yes?

So, if instead of this I use a database with a given scale of 1:50
000, how do I determine how 'close' to let a user zoom in?  Until the
'virtual' screen/page is 50 000 pixels/points, maximum?

So, on the basis, the accuracy of the DCW with quoted scale of
1:1 000 000, is approx 40m, from:

   Circ. of earth at equator ?= 360 x 60       = 21 600 mautical miles
                             ?= 1.1 x 21 600   = 23 760 statute miles (I think?)
                             ?= 8 / 5 * 23 760 = 38 016 kilometers

   then:
             38 016 km / 106 * 103 ?= 40m

Is this anything like correct?

If so, isn't it of more use to quote the minumum *accuracy* of the
data to start with?

Ian S Worthington
ALCS Development
Newsgroups: comp.infosystems.gis
Newsgroups: comp.infosystems.gis
Date:         Thu, 8 Oct 1992 19:12:55 EDT
              <GIS-L@UBVM.BITNET>
From:         JP Freeley <jpf@CHINOOK.CIT.CORNELL.EDU>
Subject:      RE: Mail address.....

In a previous message Mr. Jose Iguelmar Miranda writes:

>>        3. *REPLY*: if you want to reply, don't do it for all the list.
>> In a list environment, a reply will return to the *LIST* not to the
>> person. Look for the address of the sender and e-mail directly to him.

I find it very helpful to have persons reply to the list in most matters.
If it is very specific question such as a "looking for.." a list reply
would be needless. However, I feel that the discussion aspect of GIS-L
can only come about through a question/statement-reply forum.

Sure my mailbox fills everyday with GIS-L mail but I with a little practice
I can sort through what's interesting and what's not (to me) in a very
short time.

** This is only my tuppence **

JP Freeley
jpf@chinook.cit.cornell.edu
Comments: Gated by NETNEWS@AUVM.AMERICAN.EDU
Newsgroups: comp.infosystems.gis
Date:         Mon, 12 Oct 1992 14:16:48 -0700
              <GIS-L@UBVM.BITNET>
From:         "(Jerry Davis)" <jerry@GISLAB.SFSU.EDU>
Subject:      Re: Confused about digital scales

Ian Worthington writes:
>
>Thanks for your most rapid response, and, yes, I agree with the points you
>make.
>But what I fail to understand is the sense in which a scale can be quoted for
>a database. What does 1:50,000 *mean* until its given some physical reality?
>
>Am I being very naive here, and missing something obvious?  Anybody?
>
>
>Ian S Worthington
>ALCS Development
>

I've noticed some additional responses to your question, so what I say may be
repetitive, and if so I apologize, but the concept is an important one so let
me rephrase my response:

The scale 1:50,000 *does* have a physical reality, and that is the reality of
the map that was originally digitized, which should be traceable back to a
representation of actual ground features.  Using the scale as a measure of
accuracy carries certain assumptions:
   (1) that the analog map was compiled from sources at the scale of the final
cartographic product, or larger;
   (2) that the analog map was compiled to at least some standard of accuracy
from those sources, be it a National Map Accuracy Standard or whatever, but
some standard appropriate for general-purpose physical cartography;
   (3) that the analog map was stored on stable media;
   (4) that the digitizing process was carried out to a reasonable standard of
accuracy, given limitations in the technology;
   (5) that the numeric data structure used for storing coordinates is not a
limiting factor;

   and there may be others I'm not thinking of at the moment.

The point is that if these assumptions are made there will be a minimum size
feature or distance that can be represented by a map, digital or analog, at a
given scale, and thus the scale is a measure (albeit an imperfect one) of
ground feature resolution and indirectly accuracy that remains a part of the
digital product.  As Duane Marble mentions, "it is one of the critical
attributes of the mandatory data dictionary which must be an integral part of
every digital database."




 ---------------------------------------------------------------
| Jerry Davis  	       	       	       	       	       	       	|
| San Francisco State University, Geography / GIS Center        |
| Internet:  jerry@gislab.sfsu.edu      Phone:  (415) 338-2983	|
 ---------------------------------------------------------------
Comments: Gated by NETNEWS@AUVM.AMERICAN.EDU
Newsgroups: comp.infosystems.gis
Date:         Thu, 8 Oct 1992 09:27:04 -0400
              <GIS-L@UBVM.BITNET>
From:         "(Theodore B. Samsel)" <tbsamsel@DG11SVARMD.ER.USGS.GOV>
Subject:      Re: noaa data (GLIS)

  GLIS can also be reached via modem. I don't have the phone #
immediately available but you need a VGA to access the full
graphics capability of the service. They will be implementing
the full graphics via TELNET through X-windows in the near
future.
wwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwww
""   Ted Samsel (TBSAMSEL@QVARSA.ER.USGS.GOV)                                ""
""          or  (TBSAMSEL@DG11SVARMD.ER.USGS.GOV)                            ""
||          or  (BH419@CLEVELAND.FREENET.EDU)                                ||
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
     "Don't you feel more like you do now than you did before?"
wwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwww
From: wivey@ncsc.org (William Ivey)
Newsgroups: comp.infosystems.gis
Subject: GIS World address
Date: 14 Oct 92 20:31:25 GMT
Reply-To: wivey@ncsc.org (William Ivey)
Organization: North Carolina Supercomputing Center

Does anyone have an Internet address for GIS World?



Thanks,

Will Ivey
North Carolina Supercomputing Center
wivey@ncsc.org
Comments: Gated by NETNEWS@AUVM.AMERICAN.EDU
Newsgroups: comp.infosystems.gis
Date:         Thu, 15 Oct 1992 13:12:00 PDT
              <GIS-L@UBVM.BITNET>
From:         "(Chris Hermansen)" <clh@TFIC.BC.CA>
Subject:      Caching metadata (was: Re: When scale really means something)

Alan Rea writes

>
>This whole discussion brings up the topic of what 'metadata' (i.e. data
>about the data) should be recorded with regard to digital spatial data.
>Most discussions I have seen regarding metadata have come up with mile-long
>'laundry lists' of every conceivable type of metadata anyone could imagine,
>most of which few people, if any, know how to determine about a particular
>data set.  Does anyone have any suggestions about what MINIMAL set of
>metadata should be recorded, and how to determine each of those, so we can
>get on with it?

No, but a suggestion about implementation that works around here, at least.
Non ARC/INFO users may want to skip this.

We have a set of AMLs used in map data creation that cache metadata in the
workspace as AMLs.  For example, when we create the workspace (almost always
in UTMs) we also create a neatline coverage (our map-tiles are geographical
in nature) and several AMLs: one to set the "MAPANGLE" in ARCPLOT, one to
set the correct UTMs on the TICS, one that sets a bunch of global AML
variables with things like input scale, data sources, and so forth.  We
chose to make these files "invisible" by naming them starting with a ".";
they therefore aren't casually deleted, renamed, or what have you.

Mom's handy ARC/INFO - metadata tip # 37.

Regards,

Chris Hermansen                         Timberline Forest Inventory Consultants
Voice: 1 604 733 0731                   302 - 958 West 8th Avenue
FAX:   1 604 733 0634                   Vancouver B.C. CANADA
clh@tfic.bc.ca                          V5Z 1E5

C'est ma facon de parler.
Newsgroups: comp.infosystems.gis
From: acooper@nuustak.csir.co.za (Antony Cooper)
Subject: Re: Vector Product Format - info wanted.
Organization: Infotek, CSIR
Date: Mon, 12 Oct 92 15:26:48 GMT

Thus spake ron@topaz.bds.com (Ron Natalie):

>DMA's Vector Product Format is defined by US military standard MIL-STD-600006
>(make sure you get the right number of zeros).  The specification is available
>from "Defense Printing Service, 700 Robbins Ave.  (Bldg. 4D), Philadelphia, PA
>19111-5094."

Seven weeks ago, I ordered the above document from the above address, and I
am still waiting! I appreciate that mail in and out of South Africa is
decidedly slow and uncertain at best, so the problem might be down here.

Does anyone out there have an idea as to what their normal turnaround on
such documents is? 

Thanks
Antony
--
Antony Cooper                                        | Voice: +27 12 841 4121
acooper@nuustak.csir.co.za                           | Fax:   +27 12 841 4109
INFOTEK, CSIR, Box 395, Pretoria, 0001, South Africa | ICBM:   25 45S  28 16E
From: ron@topaz.bds.com (Ron Natalie)
Newsgroups: comp.infosystems.gis
Subject: Re: Vector Product Format - info wanted.
Date: 8 Oct 1992 15:35:01 GMT
Organization: BDS Systems
Distribution: world
NNTP-Posting-Host: topaz.bds.com

DMA's Vector Product Format is defined by US military standard MIL-STD-600006
(make sure you get the right number of zeros).  The specification is available
from "Defense Printing Service, 700 Robbins Ave.  (Bldg. 4D), Philadelphia, PA
19111-5094."

If you buy Digital Chart of the World it comes with C source for a program
to read VPW.

-Ron
Newsgroups: comp.infosystems.gis
From: dmarble@magnus.acs.ohio-state.edu (Duane F Marble)
Subject: Re: Highway shield markersets in ARC/INFO
Organization: The Ohio State University
Distribution: usa
Date: Thu, 8 Oct 1992 01:51:32 GMT

Don't know if you can get them, but Rand McNally certainly has them
all. The new (1993) issue of the Road Atlas is the first to be completely
based on digital data. You could check with Dr. Michael Dobson (Chief
Cartographer and Vice President) at their headquarters in Skokie, Illinois.
-- 
Duane F. Marble			       E-mail: dmarble@magnus.acs.osu.edu
Department of Geography                Telephone: (614) 292-2250
The Ohio State University
Columbus, Ohio 43210                   Fax: (614) 292-6213
Newsgroups: comp.infosystems.gis
From: jkocik@whsun1.wh.whoi.edu (John F. Kocik)
Subject: Ocean-Large Lake GIS
Reply-To: jkocik@whsun1.wh.whoi.edu
Organization: NOAA - National Marine Fisheries
Date: Fri, 16 Oct 92 19:24:49 GMT

Keywords: 

I an working on developing a marine GIS system for use in fisheries population
dynamics work.  I am new to GIS but have been able to find abundant examples and learning tools for land based models.  I would appreciate any citations or addressess
of individuals working on marine or lacustrine research.  Thanks for your assistance. 

 -John

Newsgroups: comp.infosystems.gis
From: dmarble@magnus.acs.ohio-state.edu (Duane F Marble)
Subject: Annual ESRI User Conference
Organization: The Ohio State University
Date: Wed, 7 Oct 1992 19:07:36 GMT

The Thirteenth Annual ESRI User Conference will be held in Palm Springs,
CA on May 24 - 28, 1993. A call for papers, posters and software submis-
sions has been issued. Abstracts for paper are due Jan. 29th; notices of
acceptance mail March 12th; final papers by April 16th.

A brochure containing full details is available upon request to:
Sheri Ellis
ESRI
380 New York St.
Redlands, CA 92373

email: sellis@esri.com
-- 
Duane F. Marble			       E-mail: dmarble@magnus.acs.osu.edu
Department of Geography                Telephone: (614) 292-2250
The Ohio State University
Columbus, Ohio 43210                   Fax: (614) 292-6213
From: isw@vnet.ibm.com (Ian S Worthington)
Date: Sat, 10 Oct 92 02:24:24 BST
Newsgroups: comp.infosystems.gis
Subject: Confused about digital scales
Disclaimer: This posting represents the poster's views, not those of IBM
News-Software: UReply 3.0

When an electronic atlas quotes a scale of, say 1:50,000, what does this
mean?  1:50,000 on paper I can cope with, but a 'bit' on my computer can
be any length I plot it to be!  Presumably its some measure of resolution,
but how do I interpret it?

In hope,

Ian S Worthington
ALCS Development
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