[Therion] Metapost for sump/syphon hazard symbol

[Paul Rowe]

A couple of variations might be a droplet in a warning triangle and an
exclamation mark in a water droplet:

Paul

On Sat, 13 Apr 2024 at 3:20 PM, Bruce Mutton <bruce at tomo.co.nz> wrote:

> Hello
>
> I’m looking for a Therion map symbol to emphasize the hazard posed by a
> localised low roof in passages (typically 2m to 5m in diameter) that are
> usually inaccessible due to water, but in dry conditions appear innocuous
> to the unwary.  Currently I’m using an empty placeholder symbol, point
> u:sumphazard, but want to upgrade!
>
>
>
> I’ve been using the SBE point danger symbol to identify hazards such as
> zones of active passage collapse.
>
> One approach for sumping hazard would be to use the same symbol, and
> change the colour to blue, but I would like the distinction to be available
> for black and white outputs as well as colour outputs.
>
>
>
> Since I’m not very good at metapost, I’m looking to see if anyone has
> anything they’d be willing to share, or perhaps write!
>
>
>
> What I have in mind is something like an exclamation mark over top of some
> water squiggles.  Maybe like one of these?
>
>
>
> The links behind the images below might have some useful elements.
>
>
>
>
> <https://i.pinimg.com/originals/02/4a/bc/024abcc38e0f1601c40650f0795948c7.jpg>
> <https://static.vecteezy.com/system/resources/previews/000/112/522/original/flat-water-icon-vector-set.jpg>
>
> Thanks in advance.
>
> Bruce
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> Therion at speleo.sk
> https://mailman.speleo.sk/listinfo/therion
>
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