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ZL3AI > APRDIG 15.02.03 11:03l 243 Lines 9993 Bytes #999 (0) @ WW
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Subj: TAPR Digest, Feb 13, 2/4
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From: ZL3AI@ZL3VML.#80.NZL.OC
To : APRDIG@WW
Subject: RE: APRS and ArcView?
From: "Brian Webster" <radiowebst@yahoo.com>
Date: Thu, 13 Feb 2003 12:22:54 -0500
X-Message-Number: 6
Scott,
From what I understand, UI View 32 has recently had an upgrade to
integrate the microsoft terra server maps. This gives you full access to
both topo maps, and aerial photography provided by the USGS. It would
require you to be connected to the net to initially get the maps but you
could save them and have them for later. This should be just what you need.
Brian, N2KGC
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Subject: RE: APRS and ArcView?
From: Miller Scott Contr 30SCS/FTI <Scott.Miller@vandenberg.af.mil>
Date: Thu, 13 Feb 2003 17:39:36 -0000
X-Message-Number: 7
Ok, I should have specified Digital Elevation Models, not just topo maps.
It sounds like Xastir is probably the closest thing to what I'm looking for.
To answer Curt's question, the viewshed would basically figure out (based on
the DEMs) what portion of the map is visible to a search team. By
integrating that across the team's track, taking into account a visibility
factor, you can get an estimate of how much of their search area the team
has seen.
Scott / N1VG
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Subject: RE: APRS and ArcView?
From: "Curt Mills, WE7U" <hacker@tc.fluke.com>
Date: Thu, 13 Feb 2003 09:48:05 -0800 (PST)
X-Message-Number: 8
On Thu, 13 Feb 2003, Miller Scott Contr 30SCS/FTI wrote:
>Ok, I should have specified Digital Elevation Models, not just topo maps.
>It sounds like Xastir is probably the closest thing to what I'm looking for.
>To answer Curt's question, the viewshed would basically figure out (based on
>the DEMs) what portion of the map is visible to a search team. By
>integrating that across the team's track, taking into account a visibility
>factor, you can get an estimate of how much of their search area the team
>has seen.
Ah... That's a cool idea! Wish _I_ had thought of that! The
closest we came to thinking along those lines was to have the
searchers verbally give a distance factor over the voice radio as
they went along, which we could use (someday) to color varying trail
widths along their route. Not very scientific. Perhaps both
methods would be required to get an accurate picture though.
We don't currently support DEM's, but that's on our TODO list.
We're also considering possible integration with other libraries
like GDAL or perhaps even GRASS. Either of those would give us a
lot more capability.
--
Curt Mills, WE7U hacker_NO_SPAM_@tc.fluke.com
Senior Methods Engineer/SysAdmin
"Lotto: A tax on people who are bad at math!"
"Windows: Microsoft's tax on computer illiterates!" -- WE7U
"The world DOES revolve around me: I picked the coordinate system!"
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Subject: Re: APRS and ArcView?
From: Keith Sproul <ksproul@rci.rutgers.edu>
Date: Thu, 13 Feb 2003 13:07:36 -0500
X-Message-Number: 9
WinAPRS supports some of the TOPO map files, although this is not
used by very many people. (I don't remember which ones off the top of
my head).
We are also working on supporting more of these types of files. If
anyone has a favorite that they are interested in, let me know.
Keith Sproul
wu2z@amsat.org
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Subject: Re: APRS and ArcView?
From: "Spider" <spider@rivcom.net>
Date: Thu, 13 Feb 2003 11:23:35 -0700
X-Message-Number: 10
----- Original Message -----
From: "Miller Scott Contr 30SCS/FTI" <Scott.Miller@vandenberg.af.mil>
To: "TAPR APRS Special Interest Group" <aprssig@lists.tapr.org>
Sent: Thursday, February 13, 2003 9:40 AM
Subject: [aprssig] APRS and ArcView?
>I've got a lot of ideas for what I'd like such an extension to do, but I've
>got my hands full with other projects right now. If I ever do get a chance
>to build something, I'll most likely do it as a commercial product.
>
>Does anything with this sort of functionality exist now? Anyone integrated
>APRS with any GIS at all?
>
>Scott / N1VG
Scott, Some of the folks on FireNet are directly involved with SAR. I know
Curt (w7eu and myself are) and I am involved (volunteer) with the latest
Quanitine efforts in Arizona with the Arizona END Task Force (Exotic
New'Castle Disease) and I am running UI-view and Pmaps...and the new
UI-Terra which is awesome.
One of the Doctors has a need to import collected database data to UI-View
and to Pmaps direct as his field personnel collect data. This discussion is
taking place on the FireNet listserve. This is a real need where a state
official has a need to use what we can offer. Obviously, they are not going
to input records into our systems (double the work) but they can export data
from their database into a format where UI-View/Xastir/Pmaps/whatever can
use immediately without humans manually inputting the data twice...which
won't happen! There are all sorts of needs...and we are listening (On
Firenet at least) directly with the folks involved and trying to come up
with solutions. It will take the help of the software authors to implement
some of this stuff...and Roger (UI=View) and Curt(Disaster...ooops I mean
Xastir) are directly in communications. We are waiting for word back from
one of the main people in regards to the END Task Force....and this is the
type of input needed....
Jim
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Subject: RE: utility to connect to multiple servers?
From: Henk de Groot <henk.de.groot@hetnet.nl>
Date: Thu, 13 Feb 2003 19:38:09 +0100
X-Message-Number: 11
Hello,
At 17:20 11-2-03 -0500, Ev Tupis (W2EV) wrote:
>o use different UNPROTO aliases
> -TRACEn-N = HOPn-N
> -WIDEn-N = SKIPn-N
> -GATE = JUMP
> -RELAY = FLOOD
I'm contemplating for quite some time to add these aliases to the default
digi_ned.ini rule-file. Of course anyone who wants to use DIGI_NED to
repeat BEACONet packets can do it, but I don't know enough of BEACONet to
see if it makes any sense to have it enabled by default.
Any opinion on this? Is there an application for this or is it better the
way it is and should we avoid it?
Kind regards,
Henk.
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Subject: RE: APRS and ArcView?
From: James Jefferson <jjeffers@aprsworld.net>
Date: Thu, 13 Feb 2003 14:51:30 -0600
X-Message-Number: 12
Actually Xastir DOES support DEM for display. The raw DEM data can be
loaded with a graphics package (GIMP, Photoshop, ect) and converted to any
kind of raster data. A world file can then be generated and it can be
displayed in XAstir like any other raster image.
-Jim KB0THN
>We don't currently support DEM's, but that's on our TODO list.
>We're also considering possible integration with other libraries
>like GDAL or perhaps even GRASS. Either of those would give us a
>lot more capability.
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Subject: RE: APRS and ArcView?
From: Miller Scott Contr 30SCS/FTI <Scott.Miller@vandenberg.af.mil>
Date: Thu, 13 Feb 2003 21:00:20 -0000
X-Message-Number: 13
Eeeeeew. That might give you a picture of the elevation model, but it
doesn't give you elevation data. In ArcView, I can import a DEM as a grid
data source and run a 3D projection, line-of-sight analysis, or all sorts of
other stuff.
My point is that ArcView (or any other good GIS) provides a very rich
framework for working with geographic information. Rather than bring GIS to
APRS, it makes more sense to me to bring APRS to GIS. I have yet to see a
good free GIS, though, and ArcView is a bit out of the average hobbyist's
price range.
Scott / N1VG
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Subject: RE: APRS and ArcView?
From: "Ray McKnight" <shortsheep@worldnet.att.net>
Date: Thu, 13 Feb 2003 13:00:30 -0800
X-Message-Number: 14
ArcView's AMAZING and yes, there are capabilities there as you mention
that could be a wonderful asset. But realistically, how many APRS folks
can or are willing to afford the licensing fee? ArcView alone exceeds
the cost of most trackers even IF there's a computer involved! And
consider that many folks are using whimpy old PC's and laptops that
can't do much with ArcView. So we manage to fund a nice computer for
the EOC or SAR operations, buy a copy of ArcView, now how many people
will be trained in its use with only one computer running ArcView? It's
not wise to put so much reliance on a system like that when only one
person in the team knows how to use it. You have to agree that the
training overhead for ArcView is a few orders of magnitude above
WinAPRS, or DOS or UI-View (and the others as well).
Now, on a more positive note, I believe the answer you're looking for
lies in the Tracking Analyst extension. It provides the ability to
integrate real-time GPS positions. I've used this combination to create
ships tracks with navigational data captured from a TCP/IP socket over
the existing on board computer network. Any available data could be
displayed along the track, customizable to the needs at the time (the
array of navigational data we're talking about includes DGPS positional
accuracy, course, heading, roll & pitch to tenths of a degree, all
aspects of speed over ground and water, etc). We were also working on
integrating 3-dimensional bottom mapping sonar into the system for a
real-time "fly-by" of subsurface features as well as current profiles.
So can ArcView do what you want? Absolutely. Can we overcome the
practical considerations of complexity, training and cost? Maybe. Can
we find someone with the time to do it? Probably not. Buy hey, you've
caught my attention, and I'm thinking about it!
73's
Ray - WB3ABN
Kingston, WA
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