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[aprssig] Test program using MapSource Maps

BH brent.hildebrand at gmail.com
Tue Jun 13 02:11:03 UTC 2006


The program is quite simple.  Windows allows for stuffing characters
into  the top level program, so that is all I do using a few windows
API calls.  So to go to a particular Lat/Long position, make MapSource
the top level program,  Send it the characters Ctrl+T,  find the input
edit box, stuff in the appropriate character representation of the
desired Lat/Long and simulate the pressing of the Enter key, and
MapSource has been panned to that partular location.  Do the same for
the scale.  Then do a screen capture.  Calibrating for Lat/Long is
quite simple.  If you are on the "5 mi." scale, then 100 pixels = 5
miles.  You know the center, and you set and/or determine the map
size, it is just a simple matter of calculating the  Lat/Long of the
corners.  You can then draw what ever you want on the map.  Viewpoint
of course does the connection to the APRS-IS, and has a simple HTTP
server.  Data is stored locally, no calls to Findu.  That's it.  The
biggest drawback is that in order to do screen captures, the map needs
to be the top level program.  Not too nice if you want to use the
computer for real work instead of play as the map program pops on top
for the capture, then disappears.  So it is probably best to run it on
a older computer that can be dedicated for that purpose, or just run
locally for your own use so you know when the pop up is going to
happen.

On 6/12/06, James Washer <washer at trlp.com> wrote:
> Would you care to tell us how you "interfaced" to mapsource maps? and/or where we can view the source?
>
> On Mon, 12 Jun 2006 18:19:20 -0700
> BH <brent.hildebrand at gmail.com> wrote:
>
> > MapSource is a Windows program.  The code is open, IF you read APL.
> >
> > On 6/12/06, Stephen Brown Jr <stephen.brown75 at gmail.com> wrote:
> > > That's pretty nice. Is this running on a linux platform? Are you willing to
> > > share the source code? I would be interested in running this here as well.
> > >
> > > 73,
> > > Stephen
> > > N1VLV
> > >
> > >
> > >  On 6/12/06, BH <brent.hildebrand at gmail.com> wrote:
> > > >
> > >  I have a test program running that uses MapSource maps.  The program
> > > is running here:
> > > http://viewpoint.no-ip.org:8080.  The user interface is only via a Web
> > > Browser once it is set up.
> > >
> > > Currently support are PHG circles, Map Icons, and moving tracks.  DFS
> > > circles are supported by not extensively tested and the colors
> > > probably are not correct.
> > >
> > > For U.S. locations, you can search by city name and state.  Search by
> > > Grid Square and Lat/Long also is supported.  Sample Lat/Long entry
> > > would be:  W34 30 / N117 20.  Or it could be entered  -34.5 /
> > > 117.33333.  The "/" is used to separate Lat from Long.
> > >
> > > Maps are described in terms of Range from the center to the minimum
> > > extent.  Example, a 10 mile Range map will show all stations out to 10
> > > miles radium in all directions at a minimum, which is usually the
> > > North/South distance.  There may be more range in the East/West
> > > direction as the map shapes are rectangular.
> > >
> > > The program supports the sending of APRS messages, but to send a
> > > message, you must be issued a "passcode" for your callsign in order to
> > > restrict use to authorized users.
> > >
> > > The intent of the program is for use on a local network, but it can be
> > > connected to the Internet as it will be for the next few days, (or
> > > until is dies.)
> > >
> > > Map products can be changed by entering "//" for the callsign without
> > > quotes, and selecting the map desired.  Of course, if multiple people
> > > are changing maps at the same time, that would create a conflict.
> > >
> > > Most APRS packet types are decoded, except Weather and Compressed
> > > Position packets.  Object/Item data entry and data search functions
> > > are not currently functional and are not exposed on the web pages.
> > >
> > > Feed back would be appreciated.
> > >
> > > Brent KH2Z
> > >
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> > >
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