[Therion] Removing the lines between survey stations created for surface features

[Benedikt Hallinger]

An option could be to overwrite the symbols with empty metapost ones

> Am 07.02.2021 um 17:51 schrieb Tarquin Wilton-Jones via Therion <therion at speleo.sk>:
> 
> Hi David,
> 
>> Does anyone know how to remove the lines that appear between survey
>> stations used for surveying around surface features?
> 
> symbol-hide group surface-centreline
> 
> This also hides the stations. If you want those, you need to put them back:
> 
> symbol-show point station
> 
> And then you can also hide the temporary stations, so only the
> fixed/painted/permanent stations are shown:
> 
> symbol-hide point station:temporary
> 
> The statements are interpreted in the order you write them, so put the
> most generic one first, then get more specific. As far as I remember,
> you cannot choose to show/hide only surface temporary stations while
> showing only the underground painted ones (you can only do the whole
> surface centreline at once, while the stations relate to surface and
> underground at the same time). Maybe others know of a way though.
> 
>> Apart from this, the surface feature drawing all works pretty well,
>> using the line type "border" with "clip" set to "off".
> 
> I like slope for dolines, and pitch for cliffs.
> 
> https://therion.speleo.sk/wiki/surfacefeatures
> 
> Cheers,
> 
> Tarquin
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