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ZL3AI > APRDIG 04.05.03 19:54l 244 Lines 9501 Bytes #999 (0) @ WW
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From: ZL3AI@ZL3VML.#80.NZL.OC
To : APRDIG@WW
Subject: Re: Question on building maps
From: "Curt Mills, WE7U" <hacker@tc.fluke.com>
Date: Wed, 30 Apr 2003 08:35:55 -0700 (PDT)
X-Message-Number: 12
On Wed, 30 Apr 2003, Gregg G. Wonderly wrote:
>I don't use Xastir, but from what I remember looking through the source, I
>think that it tiles multiple adjacent maps together so that you could use
>several small flat maps as an approximation for a single large, curved surface.
>
>Curtis will probably jump in here and volunteer more information to this
>effect...
Yep, and you can tell it to load 1000's of maps at once. It keeps
track of the extents of each map, and only loads those which have
extents that overlap the current viewport. You can load vector
only, raster only, vector on top of raster, raster on top of vector
(why would one do this?), and it will place each where it should.
You can also specify the map stacking order. I often overlay local
Tigermap Shapefiles (vector) on top of USGS topo or Terraserver
satellite images. Works great!
It can also whack the white border from USGS topo maps, stretch them
to become rectangles, and tile them together side-by-side for a
contiguous topo map view.
The program, and all of the data for the 117 map formats that it can
currently handle are free. _Many_ more map formats are in the
works as well.
http://www.xastir.org
http://xastir.sourceforge.net
http://sourceforge.net/projects/xastir
Also: I've stopped getting inputs for the APRS Client Capabilities
Chart. I need data! I'd really like to get this chart accurate and
to keep it up to date, but I need help to so so. I added columns
for some more packages/radios, and need them filled:
http://www.eskimo.com/~archer/aprs_capabilities.html
Thanks!
--
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: Users of pcsat and ARISS web pages
From: Bob Bruninga <bruninga@usna.edu>
Date: Wed, 30 Apr 2003 11:37:54 -0400 (EDT)
X-Message-Number: 13
If you use "pcsat.aprs.org" or "www.ariss.net"
I'd like to get your opinion. Replies to me only. I will summarize.
I'd like to know if you would like to see a DATE/TIME stamp on the page to
show when it was valid. I consider this essential, since the page
presents all the data in "relative" terms, AGE relative to the instant it
was downloaded. Thus once it is downloaded, a file copy or a printed copy
or a copy sitting on your screen in your absence, is of no value since it
does not have the date time stamp on it. The data on the page is
ambiguous without a time stamp except for "now".
I have asked for the date/time stamp repeatedly over the last year or so,
but the author says I am the only person out of 35,000 hits a month that
has asked for it, so it is obviously not worth doing. He did add a UTC
stamped format months ago, but that requires a separate download and it
does not show AGE which I find the most useful..
As of today, he did add the date-time stamp at the bottom. But I contend
that it should be at the top of the STATION-LIST section and the top of
the RECENT-ACTIVTY lists which is where the most recently heard packets
relative to that date/time stamp are shown. At the bottom is quite far
away from its relevance.
So, let me know YES or NO if you think adding a date/time stamp is a good
idea such as this:
STATIONS LIST AS OF XXXXXXX...
and
RECENT ACTIVITY AS OF XXXXXXX..
The author contends that adding the Date/Time stamp there clutters the
page for everyone else who has not asked for it..
If you dont care, then no reply needed as you will be considered to be one
of the 35,000 who has not asked for it.
Please send replies to me, I dont want to make a mountain out of a mole
hill, but just want to see if I really am that far in the minority or if
other viewers of these pages see the value in a date/time stamp of the
AGE data.. I will summarize the results.
Bob
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Subject: Re: Question on building maps
From: "B. Hildebrand" <bhildebrand@earthlink.net>
Date: Wed, 30 Apr 2003 08:44:40 -0700
X-Message-Number: 14
MapPoint's projection.
MapPoint docs:
Projection property:
Returns or sets whether the map is displayed as a flat map (Miller
Cylindrical projection) or globe map (orthographic projection) at
zoom levels above 5,700 miles (9,200 kilometers). Below this altitude, the
map is always displayed as a globe map. Read/write
GeoMapProjection.
geoFlatViewWhenZoomedOut 1 Miller Cylindrical projection (flat
map) at high zoom levels
geoGlobeViewWhenZoomedOut 0 Orthographic projection (globe
map) at high zoom levels
If true, look at
http://mathworld.wolfram.com/MillerCylindricalProjection.html for the Miller
Cylindrical Projection. And
http://mathworld.wolfram.com/OrthographicProjection.html for the
Orthographic Project.
Brent KH2Z
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Subject: Never mind...
From: Miller Scott Contr 30SCS/FTI <Scott.Miller@vandenberg.af.mil>
Date: Wed, 30 Apr 2003 15:47:57 -0000
X-Message-Number: 15
Just remembered that I'd already set up a SourceForge project for it. The
new mailing list will be online shortly.
http://sourceforge.net/projects/opentrac
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Subject: Re: Users of pcsat and ARISS web pages
From: "Steve Dimse" <k4hg@tapr.org>
Date: Wed, 30 Apr 2003 15:57:21 +0000
X-Message-Number: 16
On Wed, 30 Apr 2003 11:37:54 -0400 (EDT), Bob Bruninga wrote
>If you use "pcsat.aprs.org" or "www.ariss.net"
>I'd like to get your opinion. Replies to me only. I
>will summarize.
>
>I'd like to know if you would like to see a DATE/TIME
>stamp on the page to show when it was valid. I consider
>this essential, since the page presents all the data in
>"relative" terms, AGE relative to the instant it was
>downloaded. Thus once it is downloaded, a file copy or
Months ago I added the option of showing the UTC time of each and every
station and packet, in place of the age relative to when the page was
generated. Today, for the first time, Bob tells me this is not enough for
him, and he wants the time the page was generated as well. No one has ever
asked for this before and so rather than clutter the page further I added
it to the bottom of the page where Bob could refer to it for whatever
purpose he needs it.
No one else has ever asked for this (nor did anyone else ask for the other
things I've added for Bob). In the two months, there have been 12 IPs that
requested the absolute listing, despite there being a link to it on the
pages.
So, since Bob wants to have a vote, if you think the PCSat and ARISS pages
are crowded enough, email me privately!
Steve K4HG
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Subject: Re: Digipeaters in space
From: John <bigjohn45@cox.net>
Date: Wed, 30 Apr 2003 12:08:43 -0400
X-Message-Number: 17
This is why I have never joined either ARRL or AMSAT. The goal of both as
I see it is to preserve the rights of wealthy hams to have neat play
things; not to further any real useful functionality that is accessible by
hams with limited means. Witness Phase 3D.
I would be very willing to contribute to a PCsat replacement but not to the
AMSAT general fund. Putting all your eggs in one basket has always been
considered foolish and expensive. AMSAT has proven that they do not have
the NEEDS of average hams as their core philosophy.
<OPINION>
I think that Ham Radio NEEDS a high public profile system that can provide
public services cheaply. APRS is a start and an APRS with enhanced
messaging capability would be the next logical step. Think E-APRS. This
format should allow for store and forward type messaging, one-way e-mail
HAM>INTERNET. If the recipient wants to reply -- find a ham. I think a
system of enhanced PCsats would fill the bill nicely but I won't hold my
breath. By providing a means for any citizen who wants to get a ham
license with a way to report his location and send short messages to his
family and friends Ham Radio could go from largely irrelevant to very
relevant especially in the outdoor recreation community.
</OPINION>
Sociology's Iron Law of Oligarchy
(Robert Michels)
In every organized activity, no matter the sphere, a small number will
become the oligarchical leaders and the others will follow.
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Subject: Connecticut ham needs help
From: "Steve Dimse" <k4hg@tapr.org>
Date: Wed, 30 Apr 2003 16:37:15 +0000
X-Message-Number: 18
Is there anyone near Waterbury, CT, that can help a ham (WB0OLY) set up a
D7? I'm not having much luck getting the job done by email.
The guy is about to embark on an attempt (starting May 10) to set the
record for canoeing the entire Mississippi River (2348 miles in 23 days 9
hours)!
http://www.mississippichallenge.org/
Disclaimer: To try this, the guy must be crazy. I am not responsible for
anything that happens to you if you go to help ;-)
Steve K4HG
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