> 14. 2. 2017 v 19:30, Bruce Mutton via Therion <[email protected] 
> <mailto:[email protected]>>:
> clips many symbols that typically only appear inside the cave passage (unless 
> '-outline none' is set),


In case -outline none Therion is not able to decide which part of symbol (let’s 
say block) to clip off. But on other hand if there is not -clip off there the 
symbol (block) will be not appeared.

> are used by the scrap join algorithm to decide which line ends to join (for 
> visible wall lines only),

For automatic scrap join algorithm. But you may join any kind of lines at any 
line points - typically wall to corner of block.

m.s.



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