joining vertical lines bug
Joining vertical lines is buggy. It works with some combinations of line directions and angles but not with others. I think it works for a) top down lines where the top line has a direction between 12 and 3 o'clock. It fails for a) top down lines where the top line has a direction between 9 to 12 o'clock b) bottom up lines where the top line has a direction between 12 and o'clock. c) bottom up lines where the top line has a direction between 9 to 12 o'clock