breakingextend

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breakingextend [2020/07/08 18:11]
tarquinwj Typo
breakingextend [2020/07/08 18:31] (current)
tarquinwj Breaking on last station images
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 ===Breaking at the last station of a loop=== ===Breaking at the last station of a loop===
  
-Breaking at the last station of the loop - the point where the two branches of the loop rejoin - is much harder. With a single statement, it is not currently possible (Therion 5.4.4) to make the extended elevation break at the end station of a loop's shorter branch (station 7 on the 2-10-9-8-7 branch). "Extend ignore" can only be used to add breaks when legs lead away from a station (in whichever order Therion is progressing around a loop). Therefore while "extend ignore 2 10" can cause a break at station 2, and "extend ignore 8 7" can cause a break at station 8, there is no equivalent way to make a break at station 7. "Extend ignore 7 6" and "extend ignore 7" will cause Therion to put a break at station 7 on the 1-2-3-4-5-6-7 branch instead, and "extend ignore 7 11" will cause Therion to ignore the statement since a break is not needed for that leg, and then revert to its default break point within the loop.+Breaking at the last station of the loop - the point where the two branches of the loop rejoin - is much harder. With a single statement, it is not currently possible (Therion 5.4.4) to make the extended elevation break at the end station of a loop's shorter branch (station 7 on the 2-10-9-8-7 branch). "Extend ignore" can only be used to add breaks when legs lead away from a station (in whichever order Therion is progressing around a loop). Therefore while "extend ignore 2 10" can cause a break at station 2, and "extend ignore 8 7" or "extend ignore 8" can cause a break at station 8, there is no equivalent way to make a break at station 7. "Extend ignore 7 6" and "extend ignore 7" will cause Therion to put a break at station 7 on the 1-2-3-4-5-6-7 branch instead
 + 
 +{{::extendignore7.png|}} 
 + 
 +"Extend ignore 7 11" will cause Therion to ignore the statement since a break is not needed for that leg, and then revert to its default break point within the loop.
  
 However, a quirk of the way that Therion processes "ignore" commands can be used to make it happen. By default, Therion progresses through the shorter side of the loop; 1-2-10-9-8-7-11, treating 7-6-5-4-3-2 as a separate branch. However, a quirk of the way that Therion processes "ignore" commands can be used to make it happen. By default, Therion progresses through the shorter side of the loop; 1-2-10-9-8-7-11, treating 7-6-5-4-3-2 as a separate branch.
  
-First, you tell it to "extend ignore 8 7". This causes it to break at station 8. It now proceeds through the longer branch of the loop instead; 1-2-3-4-5-6-7-11, treating 2-10-9-8 as one branch, and 7-8 as another branch.+First, you tell it to "extend ignore 8" or "extend ignore 8 7". This causes it to break at station 8. It now proceeds through the longer branch of the loop instead; 1-2-3-4-5-6-7-11, treating 2-10-9-8 as one branch, and 7-8 as another branch
 + 
 +{{::extendignore8.png|}}
  
 Then you tell it to "extend ignore 7 8". This causes it to break at station 7 on the 7-8 branch, which is the place where you want the break to be. The 7-8 branch is now floating, not attached to anything. Therion helpfully connects it back onto the 2-10-9-8 branch at station 8. The end result is the desired rendering. Then you tell it to "extend ignore 7 8". This causes it to break at station 7 on the 7-8 branch, which is the place where you want the break to be. The 7-8 branch is now floating, not attached to anything. Therion helpfully connects it back onto the 2-10-9-8 branch at station 8. The end result is the desired rendering.
  
   extend start 1   extend start 1
-  extend ignore 8 7+  extend ignore 8 # or extend ignore 8 7
   extend ignore 7 8   extend ignore 7 8
 +
 +{{::extendignorelast.png|}}
  
 Note that this is not tested in multiple different configurations, and it is possible that unexpected behaviours could appear. However, it does seem to work in this demonstration at least. Note that this is not tested in multiple different configurations, and it is possible that unexpected behaviours could appear. However, it does seem to work in this demonstration at least.
  • breakingextend.txt
  • Last modified: 5 weeks ago
  • by tarquinwj