[Therion] ceiling-meander

[Martin Budaj]

> looking at the UIS official symbols ...
> ceiling meander is shown with ticks outside,
> therion ceiling-meander draws with ticks pointing inside.
>
> also chinmey line in UIS is dashed with ticks.
> in therion is just dashed.
> (therion ceiling-step line is dashed with ticks).

In fact both problematic symbols are defined in SKBB (our local caving
group) symbol set.

Unfortunately, UIS set is incomplete in therion and missing symbols
are taken fom other symbol sets even if you select UIS set in
thconfig, as it is in this case. We can add those two symbols in the
next snapshot, other symbols upon request.

You can display an overview of currently defined symbols for all
symbol sets by running

therion --print-symbols

which creates symbols.xhtml file (you can display it in Firefox).

Martin

[Therion] ceiling-meander

[Martin Sluka]

On 13.6.2011, at 11:31, Footleg wrote:

> That is news to me that the UIS have published these symbols with  
> this error in for years? I always took the published UIS symbols to  
> be the definitive reference, and inferred from them that the ticks  
> indicated the direction that the floor was lower (for floor height  
> changes) and the tick indicated the direction that the ceiling was  
> lower (for roof height changes). So have I drawn all my aven lines  
> wrong for the past 5 years?
>
> Footleg

This is more drawing maps philosophy problem. It is absolutely up to  
you and your caving group which symbol set you will use. In therion  
symbol sets you may find both (I hope).

Martin

>
> On 13 June 2011 09:19, Martin Sluka  wrote:
>
> On 13.6.2011, at 8:40, marco corvi wrote:
>
> i'm kind of confused:
>
> looking at the UIS official symbols ...
> ceiling meander is shown with ticks outside,
> therion ceiling-meander draws with ticks pointing inside.
>
> It is "error" in UIS symbols. Tick means "free air" - as step or  
> pit. You should not use ticks one time for "rock", second time for  
> "air".
>
>
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