[MLB-WIRELESS] Tool for checking LOS between nodes

[Morgan Reed]

That's WAY nicer than what I found elsewhere on their site, thanks.

On Mon, Jan 2, 2017 at 5:52 PM, Daurnimator <quae at daurnimator.com> wrote:

> We also have a shared 'wisp' account for http://wisp.heywhatsthat.com/
>
> I'll email you some creds off-list.
>
> On 2 January 2017 at 17:49, Morgan Reed <morgan.s.reed at gmail.com> wrote:
> > Ah, I presume you mean this;
> > http://www.heywhatsthat.com/profiler.html
> >
> > I feel less bad about how ugly my tool is now ;)
> >
> > On Mon, Jan 2, 2017 at 5:14 PM, Morgan Reed <morgan.s.reed at gmail.com>
> wrote:
> >>
> >> Rummaged around the website a bit only thing I've found is broken links,
> >> care to point me in the right direction?
> >>
> >> On Mon, Jan 2, 2017 at 5:09 PM, Morgan Reed <morgan.s.reed at gmail.com>
> >> wrote:
> >>>
> >>> Would've been nice if I'd have found that yesterday...
> >>>
> >>> On Mon, Jan 2, 2017 at 5:04 PM, Mitch Kelly <mitchkelly24 at gmail.com>
> >>> wrote:
> >>>>
> >>>> The hey what's that path profiler does all of that and more including
> >>>> frequency and fresnel zone
> >>>>
> >>>> On 2 Jan 2017 2:02 PM, "Morgan Reed" <morgan.s.reed at gmail.com> wrote:
> >>>>>
> >>>>> Hi All,
> >>>>>
> >>>>>        I was a MW member some many (10+) years ago, but never
> actually
> >>>>> got around to doing anything about setting up a node (Partially lack
> of
> >>>>> funds, but mostly because there wasn't anything in LOS from that
> place.)
> >>>>>
> >>>>> Many years on, the other day I was reminded by the DuxTel website
> that
> >>>>> MW exists. Figured I'd stick my head back in, though I'm not sure
> how much
> >>>>> activity there is in the community these days (the Website and
> Mailing List
> >>>>> archives seem to suggest it's a bit of a ghost town).
> >>>>>
> >>>>> In anticipation of perhaps finally setting up a node I did some
> >>>>> rummaging around to try to determine what nodes were within LOS from
> my
> >>>>> current location, after an initial aborted attempt with Google Earth
> >>>>> (seriously, who the hell implements a pathing function which DOESN'T
> snap to
> >>>>> markers, oh and the elevation profile of a path ignores the
> elevation of the
> >>>>> coordinates provided...), I spent a bit of time cooking this up
> today;
> >>>>>
> >>>>> https://tools.darkglade.com/mwLos/
> >>>>>
> >>>>> It's pretty ugly and the code is horrible (I might fix it one day),
> but
> >>>>> it pretty much works.
> >>>>>
> >>>>> The only nodes it loads automagically are the ones in the Geelong
> >>>>> region because that's where I live (if somebody wants to give me a
> full list
> >>>>> of the active nodes, ideally in this format
> >>>>> https://tools.darkglade.com/mwLos/nodes.json (or access to a
> database that
> >>>>> has the data in it) I'll happily stuff that in the back).
> >>>>>
> >>>>> The chart down the bottom shows LOS (red), actual ground level
> >>>>> elevation (blue), the two green traces are the ground level
> elevation lifted
> >>>>> 4m (nominal height of a single storey building) and 7m (nominal
> height of a
> >>>>> double-storey building) so you can tell more or less if you actually
> have
> >>>>> LOS over surrounding buildings (at least if you're not surrounded by
> >>>>> highrises).
> >>>>>
> >>>>> I arbitrarily picked two nodes in Geelong city for the initial
> >>>>> start/end point, but if you plug your lat/long/alt (height of your
> antenna
> >>>>> above ground) into the "Start" fields and hit "Update" you can then
> click
> >>>>> around the other nodes to see the terrain profile between you and
> them. The
> >>>>> "End" fields will allow you to plot to arbitrary coordinates if you
> want to
> >>>>> see something that's not already on the map.
> >>>>>
> >>>>> One warning though, it won't be terribly accurate over long
> distances,
> >>>>> as the Elevation API is limited to 512 points per request, as such
> long
> >>>>> distances may be problematic (should be pretty good to ~5km though),
> if I
> >>>>> can be bothered (and assuming there's a decent path splitting
> algorithm
> >>>>> available in the APIs) I might fix that by breaking the paths down
> into
> >>>>> smaller chunks and querying them separately.
> >>>>>
> >>>>> Figured it might be useful for other people.
> >>>>>
> >>>>> Morgan
> >>>>>
> >>>>>
> >>>>> _______________________________________________
> >>>>> Melbwireless mailing list
> >>>>> Melbwireless at lists.wireless.org.au
> >>>>> https://lists.wireless.org.au/mailman/listinfo/melbwireless
> >>>>>
> >>>
> >>>
> >>>
> >>> --
> >>> "They that can give up essential liberty to obtain a little temporary
> >>> safety deserve neither liberty nor safety."
> >>> -- Benjamin Franklin, 1759
> >>
> >>
> >>
> >>
> >> --
> >> "They that can give up essential liberty to obtain a little temporary
> >> safety deserve neither liberty nor safety."
> >> -- Benjamin Franklin, 1759
> >
> >
> >
> >
> > --
> > "They that can give up essential liberty to obtain a little temporary
> safety
> > deserve neither liberty nor safety."
> > -- Benjamin Franklin, 1759
> >
> > _______________________________________________
> > Melbwireless mailing list
> > Melbwireless at lists.wireless.org.au
> > https://lists.wireless.org.au/mailman/listinfo/melbwireless
> >
>



-- 
"They that can give up essential liberty to obtain a little temporary
safety deserve neither liberty nor safety."
-- Benjamin Franklin, 1759
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