[MLB-WIRELESS] Tool for checking LOS between nodes

[Morgan Reed]

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
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