pseudo bonds hidden by cartoons

[Eric Pettersen]

Pseudobonds to backbone atoms are hidden by cartoons. They need to be shown. In 1www for example as soon as you turn on cartoons, the missing-structure pseudobonds disappear. Also, pseudobonds depicting hydrogen bonds and distances to backbone atoms need to show up. They probably need to go to a "corrected" position so that there's no huge gap between their endpoint and the cartoon. I guess that's a discussion topic since you _could_ leave the gap and inform users they need to use a spline that goes exactly through the atom positions. That latter approach is unappealing since I envision having to say that basically 10,000 times over the lifetime of ChimeraX to various users.

Set the owner to T.G. for the "show pbs to hidden atoms" part, which would switch to C.H. for the "position adjustment maybe" part.