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<div class="moz-cite-prefix">On 07-Mar-18 08:55 PM, NKA mapper
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:CAHhSjy=f6HYy21V3mZLw2XGU14tTONFzKBuzmHmHaPj-DXP9oQ@mail.gmail.com">
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<div>Thank you for you comments, Warin. Please see my discussion
inserted below.</div>
<div><br>
</div>
<br style="font-size:12.800000190734863px">
<span style="font-size:12.800000190734863px">Wed, 7 Mar 2018
08:48:22 +1100</span><br
style="font-size:12.800000190734863px">
<span style="font-size:12.800000190734863px">From: Warin <</span><a
href="mailto:61sundowner@gmail.com"
style="font-size:12.800000190734863px" moz-do-not-send="true">61sundowner@gmail.com</a><span
style="font-size:12.800000190734863px">></span><br
style="font-size:12.800000190734863px">
<span style="font-size:12.800000190734863px"><br>
</span>
<div><span style="font-size:12.800000190734863px">> The
obstacle is not the light, but the light is used to mark it.</span><br
style="font-size:12.800000190734863px">
<span style="font-size:12.800000190734863px">> Perhaps
air_obstacle=tower/line (thinking of power and communication</span><br
style="font-size:12.800000190734863px">
<span style="font-size:12.800000190734863px">> lines as
well as towers)</span><br
style="font-size:12.800000190734863px">
<span style="font-size:12.800000190734863px">> If you want
to identify air obstacles, if you only want to identify</span><br
style="font-size:12.800000190734863px">
<span style="font-size:12.800000190734863px">> those
obstacles that have identifiers then</span><br
style="font-size:12.800000190734863px">
<br>
You are right, the light is not the obstacle. However, I am
not trying to tag nor identify all the obstacles. All the
obstacles are already defined in OSM as man_made=tower,
man_made=mast, man_made=chimney, building=* etc. I would just
like to tag the warning light on the obstacle - that is the
scope of the proposal. A previous proposal some years ago
tried to identify the man_made features as aviation obstacles,
but it met considerable resistance and failed.<br>
<br style="font-size:12.800000190734863px">
<span style="font-size:12.800000190734863px">> Some of
these have lights, some have no lights. Some lines have
soccer</span><br style="font-size:12.800000190734863px">
<span style="font-size:12.800000190734863px">> ball things
in bright colours.</span><br
style="font-size:12.800000190734863px">
<span style="font-size:12.800000190734863px">> For that
maybe airmark:light=yes/flashing_</span><wbr
style="font-size:12.800000190734863px"><span
style="font-size:12.800000190734863px">red/*
airmark:ball=red/*</span><br
style="font-size:12.800000190734863px">
<br>
Correct, many obstacles are required to be marked with paint
for daylight identification, typically aviation red/white
horizontal stripes. Power lines across gorges may be required
to have "soccer balls". However, in this proposal I only focus
on the lights.</div>
</div>
</blockquote>
<br>
Good. But consider the future extension to 'soccer balls' and maybe
other things. <br>
I think what you want is something like <span
style="font-size:12.800000190734863px">airmark:light=*</span>
<blockquote type="cite"
cite="mid:CAHhSjy=f6HYy21V3mZLw2XGU14tTONFzKBuzmHmHaPj-DXP9oQ@mail.gmail.com">
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<div><br style="font-size:12.800000190734863px">
<span style="font-size:12.800000190734863px">> conditional
tagging could be used ..</span><br
style="font-size:12.800000190734863px">
<span style="font-size:12.800000190734863px">>
light_source:conditional=high intensity flashing white</span><br
style="font-size:12.800000190734863px">
<span style="font-size:12.800000190734863px">>
light@sunrise-sunset:low intensity flashing red
light@sunset-sunrise</span><br
style="font-size:12.800000190734863px">
> <a
href="https://wiki.openstreetmap.org/wiki/Conditional_restrictions"
rel="noreferrer" target="_blank"
style="font-size:12.800000190734863px"
moz-do-not-send="true">https://wiki.openstreetmap.<wbr>org/wiki/Conditional_<wbr>restrictions</a><br
style="font-size:12.800000190734863px">
<br>
Yes, I am sure this approach would be possible. However,
combining all the various attributes (colour, intensity,
character, day/night, ICAO type, multiple) into one line would
lead to a complicated syntax without any error checking in the
editors and with a high probability of getting it wrong. <br>
</div>
</div>
</blockquote>
The day/night is the conditional thing .. and there is already a
syntax for that. So no need to invent another syntax to do the same
job in a different way. <br>
<br>
The syntax for the light ... has that not already been done for
seamark? <br>
<blockquote type="cite"
cite="mid:CAHhSjy=f6HYy21V3mZLw2XGU14tTONFzKBuzmHmHaPj-DXP9oQ@mail.gmail.com">
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<div><br>
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<div>For certain obstacles, such as light masts around a
stadium, it would be necessary to use the light tag for the
main (flood)light on the mast and the obstacle_light tag (or
airmark:light tag) for the (flashing red) warning light on top
of the mast. Also, all the obstacles close to the sea already
have a defined scheme for tagging the various light attributes
in the seamark:light feature, which I try to build on in the
proposal.</div>
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</blockquote>
<br>
As the obstacle is not being tagged - leave that word out. What is
being tagged is a warning light for aircraft .. so airmark:light I
think is better. <br>
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