Hi all,
thank you for your answer. The problem with the direction arrow at
section lines is solved. I had missed the explanation in the Therion
book because I always just checked the documentation in foot note 27.
Last night I had the idea to solve the problem with hatching using an
area.
> 18. 4. 2020 v 22:06, Roger Schuster :
>
> I guess it will be difficult to do this in Therion because the hatching is
> outside of the passage and will be clipped but anyway: Is there a way to
> achieve this?
Simply add (custom) area like default water under your drawing (bottom of stack
> 18. 4. 2020 v 22:25, Bruce Mutton :
>
> I think it is a bug. If the user hides all of the centreline objects, and
> also hides all scrap objects (or something like that), then Therion should
> trap the error and exit in a controlled manner, rather than letting metapost
> get in a tangle
