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ZL3AI > APRDIG 09.02.04 13:55l 270 Lines 9703 Bytes #999 (0) @ WW
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Subj: TAPR Digest, Feb 06, 3/9
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From: ZL3AI@ZL3VML.#80.NZL.OC
To : APRDIG@WW
Subject: Re: MapPoint, etc and Xastir or UI-View
From: "Curt, WE7U" <archer@eskimo.com>
Date: Fri, 6 Feb 2004 08:38:18 -0800 (PST)
X-Message-Number: 15
On Thu, 5 Feb 2004, Adi Linden wrote:
>That solution is totally unsuitable for me then. The netebook I have
>availble for running APRS is an older P160 with 64MB (hopefully I'll find
>more memory somewhere). Certainly inadequate for running the MapPoint and
>UI-View by the sounds of it.
I run contiguous street maps and/or contiguous topo maps from my vehicle on
a P133 w/64MB RAM. I've also done it with a PP200 w/32MB RAM.
Linux/Xastir. Street maps are Tiger in Shapefile format (vector). Topo
maps are USGS DRG geoTIFF topo (raster).
--
Curt, WE7U archer at eskimo dot com
Arlington, WA, USA http://www.eskimo.com/~archer
"Lotto: A tax on people who are bad at math." -- unknown
"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: MapPoint, etc and Xastir or UI-View
From: Adi Linden <adil@adis.on.ca>
Date: Fri, 6 Feb 2004 10:49:09 -0600 (CST)
X-Message-Number: 16
>I run contiguous street maps and/or contiguous topo maps from my
>vehicle on a P133 w/64MB RAM. I've also done it with a PP200 w/32MB
>RAM. Linux/Xastir. Street maps are Tiger in Shapefile format
>(vector). Topo maps are USGS DRG geoTIFF topo (raster).
I am looking at doing this with the Toporama topo maps I have in gif
format.
Adi
--
Adi Linden | va3adi | va3adi@adis.ca | http://adis.ca
+-----------------------------------------------------------------+
IRLP Node 2590 in Sioux Lookout, Ontario
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Subject: Re: MapPoint, etc and Xastir or UI-View
From: "Curt, WE7U" <archer@eskimo.com>
Date: Fri, 6 Feb 2004 08:57:08 -0800 (PST)
X-Message-Number: 17
On Fri, 6 Feb 2004, Adi Linden wrote:
>>I run contiguous street maps and/or contiguous topo maps from my
>>vehicle on a P133 w/64MB RAM. I've also done it with a PP200 w/32MB
>>RAM. Linux/Xastir. Street maps are Tiger in Shapefile format
>>(vector). Topo maps are USGS DRG geoTIFF topo (raster).
>
>I am looking at doing this with the Toporama topo maps I have in gif
>format.
A few tricks for running Linux on low-memory systems:
Run FVWM2 window manager, or if you can stomach it, perhaps something like
TWM. Don't run Gnome, KDE, or any of the other memory-hungry window
managers.
Edit /etc/inittab to comment out several of the virtual consoles. I
usually run two. You'll have to reboot to see that change take effect (an
unusual requirement for Linux!).
Get rid of any daemons that you don't need. Use "ps -aux" or "top" to see
what daemons are running in memory. Uninstall uneeded daemons or change
your configs so that they don't get started.
Check with "top" and/or "ps -aux" again to verify that you have only
necessary daemons running. "free" and/or "top" should tell you have much
memory and swap you have available.
--
Curt, WE7U archer at eskimo dot com
Arlington, WA, USA http://www.eskimo.com/~archer
"Lotto: A tax on people who are bad at math." -- unknown
"Windows: Microsoft's tax on computer illiterates." -- WE7U
"The world DOES revolve around me: I picked the coordinate system!"
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Subject: Findu and the find-us query
From: Earl Needham <needhame1@yucca.net>
Date: Fri, 06 Feb 2004 10:02:13 -0700
X-Message-Number: 18
I am having good results using the find-us query:
( http://www.findu.com/cgi-bin/find-us.cgi?call=kd5xb-2 ), but when trying
to see more than one station using this query, I don't get exactly what I
was looking for:
( http://www.findu.com/cgi-bin/find-us.cgi?call=kd5xb-2,tucari,mrica )
I'm seeing only one plot point, but it has all three calls on it. Does
this query not quite support what I'm trying to do, or perhaps I have the
syntax wrong?
Tnx es 7 3
Earl
Earl Needham, KD5XB, Clovis, New Mexico DM84jk
KD5XB-2>APW251,PCSAT-1%:=3425.83N/10313.55W-PHG7150/WinAPRS 2.5.1
-EARL_CLOVIS -251-<630>
SETI@Home: 11343WU/7.36yrs
----------------------------------------------------------------------
Subject: Re: MapPoint, etc and Xastir or UI-View
From: Adi Linden <adil@adis.on.ca>
Date: Fri, 6 Feb 2004 11:03:03 -0600 (CST)
X-Message-Number: 19
>Edit /etc/inittab to comment out several of the virtual consoles. I
>usually run two. You'll have to reboot to see that change take
>effect (an unusual requirement for Linux!).
'telinit q' should reload inittab and not require a reboot...
Adi
----------------------------------------------------------------------
Subject: Re: Findu and the find-us query
From: Steve Dimse <k4hg@tapr.org>
Date: Fri, 6 Feb 2004 12:29:57 -0500
X-Message-Number: 20
On 2/6/04 at 10:02 AM Earl Needham <needhame1@yucca.net> sent:
>I'm seeing only one plot point, but it has all three calls on it. Does
>this query not quite support what I'm trying to do, or perhaps I have the
>syntax wrong?
If the APRSworld server allows multiple posits I don't know the syntax,
I'll support it if there is the capability. This is the reason I'd like to
have a general purpose map server, that way it could be used for any sort
of drawing specific to a given client program.
I've also converted the find.cgi to use the APRSworld maps in a trial,
response time seems reasonable, though there are a few problems.
http://www.findu.com/cgi-bin/find.cgi?call=K4HG-8
This shows that the land/water interface needs to be tweaked, at least here
in the Keys, and this shows that detail seems to be missing in the Miami
area:
http://www.findu.com/cgi-bin/find.cgi?call=K4HG-5
Also, though there seems to be an land outline for the world, country
boundaries are not there, I'd think that data would be available, and would
make European maps look much better...
http://www.findu.com/cgi-bin/find.cgi?call=PA3DFR
Steve K4HG
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Subject: Re: MapPoint, etc and Xastir
From: Adi Linden <adi@adis.on.ca>
Date: Fri, 6 Feb 2004 11:35:12 -0600 (CST)
X-Message-Number: 21
>I run contiguous street maps and/or contiguous topo maps from my
>vehicle on a P133 w/64MB RAM. I've also done it with a PP200 w/32MB
>RAM. Linux/Xastir. Street maps are Tiger in Shapefile format
>(vector). Topo maps are USGS DRG geoTIFF topo (raster).
What is the most efficient raster format to use with Xastir? The images I
have are in gif format. I understand Xastir can deal with gif images on
the fly but would there be an advantage to convert these images (using
ImageMagick) in bulk before using them with Xastir?
Adi
--
Adi Linden | va3adi | va3adi@adis.ca | http://adis.ca
+-----------------------------------------------------------------+
IRLP Node 2590 in Sioux Lookout, Ontario
----------------------------------------------------------------------
Subject: Re: HF APRS
From: "Clayton H. Owen" <aa3jy@winlink.org>
Date: Fri, 6 Feb 2004 11:43:31
X-Message-Number: 22
Yes..HF APRS ia alive and well..
73,
Clay AA3JY
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Subject: Re: Findu and the find-us query
From: "James Jefferson" <jj@aprsworld.net>
Date: Fri, 6 Feb 2004 11:46:47 -0600 (CST)
X-Message-Number: 23
All this is possible, just needs to be requested.
For example I just added borders to the countries.
>If the APRSworld server allows multiple posits I don't know the syntax,
>I'll support it if there is the capability. This is the reason I'd like
>to have a general purpose map server, that way it could be used for any
>sort of drawing specific to a given client program.
I'll need to lookup what it is.
>I've also converted the find.cgi to use the APRSworld maps in a trial,
>response time seems reasonable, though there are a few problems.
Machine seems to be holding its own. Most maps are comming out of cache,
which lends credit to my analysis that much of the maps requested are
redundant.
>This shows that the land/water interface needs to be tweaked, at least
>here in the Keys, and this shows that detail seems to be missing in the
>Miami area:
This is exactly what will happen when 1:1M scale maps are laid on top of
more detailed maps. NOTHING WILL LINE UP. This will probably be the case
with WinAPRS, dosAPRS, and some of the palmAPRS maps as well.
-Jim KB0THN
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Subject: Re: MapPoint, etc and Xastir or UI-View
From: "Curt, WE7U" <archer@eskimo.com>
Date: Fri, 6 Feb 2004 10:04:29 -0800 (PST)
X-Message-Number: 24
On Fri, 6 Feb 2004, Adi Linden wrote:
>What is the most efficient raster format to use with Xastir? The images I
>have are in gif format. I understand Xastir can deal with gif images on
>the fly but would there be an advantage to convert these images (using
>ImageMagick) in bulk before using them with Xastir?
Not sure. I mostly use vector maps except for the DRG topo's and internet
map images.
You could play with them a bit to see which types take longer to load. Pick
a very large image and then time it in various formats.
--
Curt, WE7U archer at eskimo dot com
Arlington, WA, USA http://www.eskimo.com/~archer
"Lotto: A tax on people who are bad at math." -- unknown
"Windows: Microsoft's tax on computer illiterates." -- WE7U
"The world DOES revolve around me: I picked the coordinate system!"
----------------------------------------------------------------------
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