[Therion] Sketches on doesn't work / legacy survey

[Roger Schuster]

Hello cavers,

finally I got it working and now I also can provide a complete example:

<https://send.firefox.com/download/68dbfd56e60e2b2c/#iSkNt75QW2_8tIZeDCD9qQ>

(link will expire in seven days).

To avoid the white artifact (see file kolkhoehle_artifact.pdf) it is 
necessary *not* to hide the survey stations! As soon as you use either 
the attribute -visibility off or use symbol-hide point station in your 
layout you will have a white trapezoid on the final pdf map. Only hiding 
the survey line is possible. As long as the stations are visible the 
resulting map is fine (see kolkhoehle_ok.pdf). Btw. symbol-hide group 
cave-centerline causes an error.

Regards,

Roger

Am 13.04.2020 um 11:20 schrieb Roger Schuster:
> Hello cavers,
>
> currently I try to work with some legacy survey which are the original 
> survey data and the final map with scale bar but without marked 
> stations. My intention is to geo-reference the existing map (i.e. 
> attaching the entrance location to the UTM grid) and use it in a cave 
> atlas of the area. I don't want to redraw the whole map in Therion.
>
> I followed the directions given in the therion wiki and entered the 
> survey data and the resulting model in Loch looks fine and plausible. 
> After that I created a scrap with the scanned map (projection plan) 
> and scaled it using the scale bar and the scaling tool of Xtherion map 
> editor. I marked the location of the first survey station at the cave 
> entrance and in the layout section of my thconfig I turned on sketch 
> export. Unfortunately it doesn't work. The generated pdf only contains 
> the map header (with wrong length and depth statistics btw!) and a 
> short part of the first survey shot. I expect the whole scanned 
> background image to be visible and in scale in the pdf. Honestly said 
> I never got the "sketches on" working with any of my old and new maps. 
> What I am doing wrong? Any pointer to the right direction is highly 
> appreciated.
>
> Best regards and thanks in advance,
>
> Roger
>
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