HDTenEightyP/NetNews huggingface dataset:
From: i43_ps02@RED.WHOI.EDU
Newsgroups: comp.infosystems.gis
Subject: Legal Amazon Elevation Data Request
Date: 10 Apr 92 18:48:40 GMT
              <GIS-L@UBVM.BITNET>
Comments: Gated by NETNEWS@AUVM.AMERICAN.EDU
X-To:         gis-l@ubvm.bitnet@AQUA.whoi.edu

We have a research station in Paragominas, Para, Brazil, whose scientists
are interested in developing a high resolution digital elevation model of
the Legal Amazon (Brazilian Amazon). Besides the coarse elevation data
provided in the US Navy-produced ETOPO5, what are additional sources of
elevation data for this region, preferably at higher resolution? Is there
elevation mapping at relatively high resolution for the Amazon? If you or
someone you know is/has been involved in a project producing elevation
data for the Amazon (or a section of it), please respond to me via the
GIS-L or direct mail. Thank you. Peter Schlesinger, The Woods Hole Research
Center, I43_PS02@red.whoi.edu.
From: mccauley@ecn.purdue.edu (Darrell McCauley)
Newsgroups: comp.infosystems.gis
Subject: Interlayer or 3D analysis
Date: 9 Apr 92 11:53:33 GMT
Article-I.D.: noose.1992Apr9.115333.5095
Followup-To: comp.infosystems.gis
Organization: Ag Engineering Dept, Purdue University

I have 7 layers: 6 layers of one soil property at incremental
depths and another soil property at the first depth.  If I
just look at the properties from the first depth, what can
I say (statistically) about the deeper depths?  What methods
are available for this type of statistical analysis?

What if my hypothesis was that I could predict (within some
margin of error) the property at the 5 greater depths from
the two properties at the shallow depth? How would I test 
this?

How would I quantify the differences in spatial distribution
(x, y, and z?) between layers?  For x and y constant, I could
use classical correlation (cell-to-cell in a raster-based GIS). 
For z constant, I may be able to calculate some sort of spatial 
(auto)correlation.

What GIS tools are available for statistical analyses such as
these? 

I present this specific example in hopes of generating general
discussion for two reasons: personal enrichment and for the
improvement of GIS software (i.e., if *I* need it and it's not
available, I will write it if I can).  I know that my favorite
GIS will have Kriging soon and I just added the ability to
create Theissen polygons and Delaunay triangles (which may open 
up a few possibilities).

What statistical analysis tools should most GISs have but don't?
What would you like to see, and *why* (what could you gain from
this new tool)?

BTW, for those of you who requested the data for this example, 
I haven't forgotten about you. I'm trying to get a sys-admin 
friend to open up anonymous ftp.
-- 
James Darrell McCauley          Department of Ag Engr, Purdue Univ
mccauley@ecn.purdue.edu         West Lafayette, Indiana 47907-1146
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Newsgroups: comp.infosystems.gis
Date:         Wed, 8 Apr 1992 06:13:12 PST
              <GIS-L@UBVM.BITNET>
From:         Jim Case <JCASE@UCDCVDLS.BITNET>
Subject:      Re: GIS Software
              3 Apr 1992 15:57:00 GMT from <STGG8004@IRUCCVAX.UCC.IE>

On Fri, 3 Apr 1992 15:57:00 GMT Darius Bartlett said:
>>One of the distinctions is the ability to do overlay. Not draw two
>>things on top of each other, but the logical operation. The creation
>>of buffers via computation is also closely related. The distinction is
>>between mapping and analysis.
>
>... And also the ability to then FEED BACK the results of such an synthesis
>into the database, where it can subsequently be used as the starting point for
>other analyses / queries / operations. Overlay with "conventional" mapping
>systems, as Duane implies, is a display technique, not a logical operation.
>It does not generate NEW spatial objects from the two (or more) source sets
>used in the overlay. GIS does ... or at least it should :-)
>
>| Darius Bartlett,                        Darius Bartlett,                   |


   Given everything that has been stated about the functionality of a GIS,
aside from the buffering ability, MapInfo provides the ability to do overlay
(albeit to a limited degree) and supplies the resulting dataset for further
analysis.  I agree with David Marks suggestion that we get a definition
together so that we can all understand the MINIMAL functionality that a system
should provide to be considered a GIS...

Jim Case, CVDLS
jcase@ucdcvdls.bitnet
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Newsgroups: comp.infosystems.gis
Date:         Sun, 12 Apr 1992 16:55:34 CST
              <GIS-L@UBVM.BITNET>
From:         Mike Frith <FRITH@MAX.CC.UREGINA.CA>
Subject:      Arc/Info

This is a technical question for Arc/Info users. (Is there an Arc/Info
discussion list yet? Some of us can't afford to use ArcMail.)
   I have a large basemap, most of Western Canada - Manitoba to British
Columbia, that is to be accessible to numerous users down to a resolution
of one section.  The problem that I am having is how to manage this basemap.
There are several things that I have to keep in mind, first of which is speed.
But I also have to determine which projection is best as well.  Most of the
users have been using a mapping package (Autotrol) that is designed for this
work.  Right, why don't they keep using it.  Well, the powers that be have
decided that Arc/Info is the way to go for corporate mapping and they want it
to be as similar as Autotrol.  Autotrol uses the UTM projection.  And I am
leaning to the same projection for Arc/Info.  I can probably keep a township
basemap as one coverage but not a basemap to the section level.  I think that
the 10,000 arcs per polygon limit would be exceeded.  I have looked at
Librarian but do not have that much experience with it.  With Librarian, what
would be my tile size?  I have no idea how many townships there are in the
basemap, but it would be close to 1000, so I have ruled that out.  Do I use
more townships per tile, like 5x5, 10x10?  A lot of my development
applications and mapping routines will be based on section, township and
range, so I am at a standstill.  We didn't cover very large spatial database
management in our GIS classes.  This also proves that GIS is not just knowing
the software.  There is much more involved than knowing how to snap arcs to
labels, etc.  Any suggestions would be greatly appreciated.
     A few other tidbits.  Has anyone ported Arcshell from Rev. 5 to Rev. 6?
With success?  The powers that be said the only reason they bought Arc/Info
was because of Arcshell (otherwise its just another mapping package? RIGHT!)
I am not a big fan of Arcshell, but it does help, somewhat, those who are
new to Arc/Info.
     These new GUI (geographical?) are nice but they take a lot of time and
space to operate.  Starting Rev. 6 takes from 20 to 30 seconds, not a lot I
know, but it is frustrating.  Moving into Arcedit and Arcplot also takes
considerable time, compared to Rev. 5.  Does everyone have this problem or
just me?  Arc is on an HP9000/720 with 16M of memory.  Do we need more
memory?  Not that we'll get it.

Thanks,
Mike Frith
frith@uregina1.bitnet
Comments: Gated by NETNEWS@AUVM.AMERICAN.EDU
Newsgroups: comp.infosystems.gis
Date:         Thu, 16 Apr 1992 16:26:42 PDT
              <GIS-L@UBVM.BITNET>
From:         Herb Maschner <maschner%alishaw@HUB.UCSB.EDU>
Subject: Re: Rob Levrant's Statement of Correction
X-To:         GIS-L@ubvm.cc.buffalo.edu

This would not have been the first time an individual was forced
to withdraw a statement because of a threat of suit.  The Internet
is not, I guess, a place of free speech and commontary.

H. Maschner
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Newsgroups: comp.infosystems.gis
Date:         Mon, 13 Apr 1992 14:18:16 EST
              <GIS-L@UBVM.BITNET>
From:         Robert Driessen <driessen@SOL.SURV.UTAS.EDU.AU>
Subject:      Digitiser for the MAC
X-To:         gis-l@ubvm.cc.buffalo.edu
X-cc:         B.M.Potts@plant.utas.edu.au

Salutations

A colleague wishes to purchase a digitiser for use with his macintosh so that
he may digitise leaves (from plants) and use the result with some specialised
software. Before he buys he would like to ensure that he can deal directly with
the data coming from the digitiser and would like to know if there is
a hardware and software solution that would enable him to do this.

There must be someone out there that has used a digitiser with a mac??

Please reply direct to:   B.M.Potts@plant.utas.edu.au

A message from my colleague follows:

>I'm looking to buy a digitizer in the AUS$500-AUS$2000 range, and I
>want to customize the front-end. Optimally, I'd like something that
>comes with a HyperCard XCMD interface to cut my development time. I am
>interested in capturing individual points and calculating distances between
>these points or distances between a point and a straight line. For any
>digitising session I would like the flexibility to be able to define a
>given set of points to be digitised (e.g. top of leaf, base of leaf etc.)
>and the combination of points between which distances are to be calculated.
>The distances (e.g. leaf length, leaf width etc.) are then stored in an
>asci file with an individual and possibly group identifier and can be later
>analysed with any statistical package.

>The resolution should be at least 0.1mm, and the accuracy must be
>at least 0.6mm. The size range I am interested in is 12x12 inches to about
>15 x 18. The stylus should be quick and easy to use, since there
>will be a large number of points to digitize.

>Are there any such digitizers out there?

Thanks in anticipation

Robert.


===============================================================================
  Robert J Driessen                          R.J.Driessen@censis.utas.edu.au
  Centre For Spatial Information Studies     Phone: 002 202106  (National)
  University of Tasmania                            61 02202106 (International)
  GPO Box 252C                               Fax:   002 240282  (National)
  Hobart                                            61 02240282 (International)
  Australia 7001
===============================================================================
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Newsgroups: comp.infosystems.gis
Date:         Fri, 17 Apr 1992 16:37:29 -0400
              <GIS-L@UBVM.BITNET>
From:         "Ryan_J.Simmons" <13501RJS@MSU.BITNET>
Subject:      Benchmarks

Have any benchmarks been made testing Unix workstations - using GIS
applications?  I would be really interested in seeing how the various
platforms compare, with respect to run time, when executing overlay functions
(such as the ARC/INFO UNION and INTERSECT commands).  Also, a comparison of
how increasing the number of users affects run time on the various platforms
would be helpful.

We are running ARC/INFO on a VAX 8650 and are planning to migrate to a
workstation in the near future.  The question is which workstation would
provide the best service for our needs.  There are a number of Unix
workstations available to us at this time (including some Sun's, Sparcstations,
and IBM RS6000's).

Does anyone on the list have any experience in this area and/or information
they could share?

Thanks in advance.

Ryan Simmons
Systems Analyst
Computing Information Center
Michigan State University
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Newsgroups: comp.infosystems.gis
Date:         Thu, 16 Apr 1992 08:22:52 -0400
              <GIS-L@UBVM.BITNET>
From:         Keith Clarke <kclarke@RESDGW6.ER.USGS.GOV>
Subject:      Re: perspective on Geographic
X-To:         "Geographic Information Systems Discussion List"
              <GIS-L@UBVM.cc.buffalo.edu>
              NL" <RIP@RCL.WAU.NL> "Re: perspective on Geographic" (Apr 16,
              4:17am)

Frans Rip writes:
Shouldn't you map what is of interest, on a scale that shows what you
need to see ?
The distinction between a map and a plan is arbitrary indeed !

And one step further: why only think in maps ? Maps are just one group
of projections (i.e. vertical) of the data on your presentation
platform. Move your (virtual) camera, look at it from a different
angle ! Shift your focus ! Visualize earth rather than only mapping it !

------------------------------
I think Frans has helped me somewhat in something I have been thinking
about for a while, i.e. what is the difference (and similarity) between
cartography and GIS. Concern for the map, i.e. its projection, scale,
level of generalization, is obviously cartography. Visualizing information
structure in data is obviously GIS. Once again, I think that the overlap
is more important than the differences. Cartographers make maps, but should
be concerned about geographic information. GISers (what is the real term..
perhaps geographic information analysts) analyze geo-information, but I
think they also should be concerned about cartography. The cartography/geography
link is about a hundred years old, there's no need to break it because of
one new technology.
P.S. Is an oblique air photo really "visualizing the earth rather than mapping
 it"?
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Newsgroups: comp.infosystems.gis
Date:         Mon, 13 Apr 1992 09:52:21 EDT
              <GIS-L@UBVM.BITNET>
From:         smyser@ATHENA.MIT.EDU
Subject:      Re: Digitiser for the MAC
X-To:         GIS-L@UBVM.cc.buffalo.edu

Summagraphics is one vendor that makes nice
digitizers that can be hooked to the Mac.
Someone else may have to contribute C-code to
read the serial ports.  The right place to ask
this question is probably the moderated
Mac-specific discussion group "info-mac",
information about which is below:

  The Info-Mac newsgroup is moderated by Bill Lipa.

  The Info-Mac archives are available (by using FTP, account anonymous,
  any password) in the info-mac directory on sumex-aim.stanford.edu
  [36.44.0.6].  Help files and indices are in /info-mac/help.

  Please send articles and binaries to info-mac@sumex-aim.stanford.edu.
  Send administrative mail to info-mac-request@sumex-aim.stanford.edu.

I would suggest that Macs are so mouse-happy
that the notion of how to use a digitizer well
has never been solved.  PCs are both more used
and more useful with gadgets requiring serial ports,
IMHO.

Rob Smyser
Manager, Computer Resource Laboratories
MIT School of Architecture and Planning


------- End of Forwarded Message
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Newsgroups: comp.infosystems.gis
Date:         Wed, 8 Apr 1992 16:38:05 EST
              <GIS-L@UBVM.BITNET>
From:         David Wong <DWONG@UCONNVM.BITNET>
Subject:      Re: Centrography

One of the good start in centrographic technique is an issue in
the CATMOG (Concepts and Techniques in Modern Geography) series
# 32 by A. Kellerman " Centrographic Measures in Geography".
Geo Books, Norwich, England.

David Wong
U. Connecticut
From: hoffmann@URZDFN.KARTOGRAPHIE.TU-DRESDEN.DBP.DE
Newsgroups: comp.infosystems.gis
Subject: ESRI
Date: 10 Apr 92 17:10:36 GMT
              <GIS-L@UBVM.BITNET>
Reply-To: hoffmann@urzdfn.kartographie.TU-DRESDEN.DBP.DE
Comments: Gated by NETNEWS@AUVM.AMERICAN.EDU
P1-Message-Id: DE*DBP*TU-DRESDEN;dfnserv-tud1003920410190523-EDe
X400-Trace:   DE*DBP*TU-DRESDEN; arrival Fri,
              10 Apr 92 17:05+0000 action Relayed
X400-Trace:   de*dbp*gmd; arrival Fri, 10 Apr 92 19:07+0200 action Relayed
X400-Trace:   de*dbp*GMD; arrival Fri, 10 Apr 92 19:07+0200 action Relayed
Priority:     urgent

Helo folks at ESRI,
can somebody of you tell me if Merrill Lyew will return from holidays soon...?
I didn't get any reply to some messages for two weeks or so.
----------------------------------------------------------------------

       ******** ****** ************ ********** *** **
FRANK <hoffmann@urzdfn.kartographie.tu-dresden.dbp.de>
       ******** ****** ************ ********** *** **
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Newsgroups: comp.infosystems.gis
Date:         Thu, 16 Apr 1992 18:19:00 PDT
              <GIS-L@UBVM.BITNET>
From:         Daljeer Ollek <ST60346@OREGON.BITNET>
Subject:      Re: perspective on Geographic

I'm glad you brought up the "professional" side of working with GIS esp in BC
I am originally from Kamloops and find your comments about low pay and
difficulty in advancing quite interesting.  Could you elaborate  on this for
me.  I'm finishing my degree in a couple of months and had considered going
into GIS... i would be interested in your comments/experiences
Newsgroups: comp.infosystems.gis
From: kolovson@hplabsz.hpl.hp.com (Curt Kolovson)
Subject: is it ok to announce a course in this newsgroup?
Summary: advertizing on the net
Date: Wed, 15 Apr 1992 19:35:31 GMT
Distribution: na
Organization: Hewlett-Packard Laboratories Palo Alto,CA

I will be teaching an intro course on GIS this fall through a local university 
extension program.  Before posting an official announcement, I would like to 
know if it is legal and socially acceptable to post such an announcement for 
a course (for distribution only within the SF Bay area).  Does anyone know?  

Thanks very much.

	Curt Kolovson, HP Labs, e-mail: kolovson@hpl.hp.com
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Newsgroups: comp.infosystems.gis
Date:         Thu, 16 Apr 1992 14:50:00 EST
              <GIS-L@UBVM.BITNET>
From:         CTHOMSON@CLARKU.BITNET
Subject:      3D GIS Reference

I have been looking through back issues of the ACSM/ASPRS/etc.
proceedings from 1985 to 1989, and can't find a reference to a 3 dimensional
GIS. I know I attended a paper in Baltimore about it, and saw a demo at
the exhibit hall, and I can't find it anywhere.

Thanks for your help -

Lee Thomson
IDRISI Project Manager
cthomson@vax.clarku.edu
From: bmw@ldgo.columbia.edu (brian whiting)
Newsgroups: comp.infosystems.gis
Subject: Re: Digitiser for the MAC
Summary: DigiGraf is software to drive a tablet on a Mac
Date: 14 Apr 92 00:51:22 GMT
Organization: Lamont-Doherty Geological Observatory

In article <9204131350.AA17091@m11-113-5.MIT.EDU>,         smyser@ATHENA.MIT.EDU writes:
> Summagraphics is one vendor that makes nice
> digitizers that can be hooked to the Mac.
> Someone else may have to contribute C-code to
> read the serial ports.  The right place to ask
...stuff deleted....

DigiGraf runs a Summa Bitpad, off the ADB (the Mac way
to run many peripherals ;-} ).  Its available by ftp from
rascal.utexas.edu (I think thats the address) or ask archie.

> 
> I would suggest that Macs are so mouse-happy
> that the notion of how to use a digitizer well
> has never been solved.  PCs are both more used
> and more useful with gadgets requiring serial ports,
> IMHO.

see above... 

Brian Whiting
bmw@airy.geosci.unc.edu
UNC-Chapel Hill Geology Dept.
-- 
Brian Whiting    |              bmw@airy.geosci.unc.edu
Grad. Student    |              bmw@lamont.ldgo.columbia.edu
UNC Geology Dept.|              whiting@uncvx1.bitnet (if you must)
Chapel Hill, NC  |              919.962.0705
Organization: Arizona State University
Date: Monday, 13 Apr 1992 16:55:41 MST
From: <IDSAW@ASUACAD.BITNET>
Newsgroups: comp.infosystems.gis
Subject:    HP/Genesis product

Is anyone out there familiar with "Genesis" on HP??? ---- and whether
it has the ability to accept ASCII data and translate into its own (Gensis)
format?  We need to supply a group with data files who have the above
scheme but want the data in EBCDIC.  Is there any reason why we cannot
provide ASCII files instead?

Thanks for any help you can provide.

Shirley Woods
Arizona State University

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Newsgroups: comp.infosystems.gis
Date:         Wed, 15 Apr 1992 15:35:00 EST
              <GIS-L@UBVM.BITNET>
From:         CTHOMSON@CLARKU.BITNET
Subject:      Re: SUMMARY AND COMPARISON OF DIFFERENT GIS'S

I know of two very general comparisons of GIS functionality. The archetype
may be GIS World magazine's GIS World Sourcebook. It is an annual affair,
and contains information from the vendors on the capabilities of the software
they sell. It has gotten more elaborate in recent years, and now has articles,
sources for data, hardware and services as well as specific GIS products.

There is also a group in the Netherlands, that has an extensive and detailed
survey. I can't remember the name, but can find it and post later if there
is interest.

Lee Thomson
IDRISI Project Manager
cthomson@vax.clarku.edu
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Newsgroups: comp.infosystems.gis
Date:         Wed, 8 Apr 1992 21:01:52 HOE
              <GIS-L@UBVM.BITNET>
From:         Rafael Sanchez SCUAM <GISMAIL@VM1.SDI.UAM.ES>
Subject:      Asking about Sirlin View

Hello everybody:
Does anyone any reference about SIRLIN VIEW?
Is It good for digitizing?
Thank you very much. Hasta luego compadres SIG.

Servicio de Cartografia y Cartoteca       Voice: +34 1 397 4580
Facultad de Filosofia
Ciudad Universitaria de Cantoblanco       Fax:   +34 1 397 8599
28049 MADRID.
SPAIN
e-mail: GISMAIL@EMDUAM11.BITNET
        GISMAIL@VM1.SDI.UAM.ES
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Newsgroups: comp.infosystems.gis
Date:         Mon, 13 Apr 1992 16:06:00 EST
              <GIS-L@UBVM.BITNET>
From:         GISMGR@UBVMS.BITNET
Subject:      Re: Digitiser for the MAC [forwarded]

The following message was not automatically posted to GIS-L because
the poster included the entire message he was responding to, INCLUDING
THE HEADER.  If LISTSERV finds a '"Sender:", "From:"  or "Reply-To"
field pointing to the list', it will not post the item.

David Mark
gismgr@ubvms.cc.buffalo.edu
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From: Jim Greenberg <GREENBJB@SNYONEVA.BITNET>
Subject: Re: Digitiser for the MAC
To: GIS-L@UBVM.BITNET
Message-id: <01GISII76CTC8WW3L0@SNYONEVA.BITNET>
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X-Envelope-to: GIS-L@UBVM.BITNET
X-VMS-To: IN%"GIS-L@UBVM.BITNET"

Digitizer for Mac,

We use WACOM tablets and we love them.  There are a wide variety of software
products that make use of them.  They have a number of different sizes and
stylus.

I do not have their latest number, I normally order these from VCP or Mac Land.
Someplace like that.

Jim Greenberg

--------------
[original posting being responded to has been deleted by GISMGR]
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Newsgroups: comp.infosystems.gis
Date:         Thu, 9 Apr 1992 11:20:23 PDT
              <GIS-L@UBVM.BITNET>
From:         Armando Guevara <esri!ufo!armando@UUNET.UU.NET>
Subject:      Re: Revisions in software :-)

----- Begin Included Message -----

... It is a different matter that (revisions)
in some real cases are actually the "petrified" concept that Darius
presents. Software revisions in my mind should reflect advances
in the technology...

+armando


----- End Included Message -----