Dave wrote: > the consensus is that to *reliably* generate ribbons, > you need at least 1 atom in the amide plane [snip] > John Stone [snip] indicated the following: > > "With some tricky logic, you can use the cross product of the vectors > between 3 CA atoms to find an orthogonal vector of course, but there are > structures where that doesn't work very well, which is why it gets tricky > pretty rapidly" [snip] > So I think support for those representations that require generation of a > vector which is orthogonal to the backbone is probably not possible > currently when only provided with CA. Also, there are not a lot of such > incomplete (I think generally theoretical) structures(impression I got > from > everyone I've talked to about this), thus it hasn't been a priority for > implementation in other molecular visualization packages.
Well, I went ahead and implemented this. It may not be reliable, but on simple structures it looks pretty good. In many cases the ribbons actually *look* better because they are smoother ... perhaps less accurate, but they *look* nice :-) Miguel ------------------------------------------------------- This SF.Net email is sponsored by: SourceForge.net Broadband Sign-up now for SourceForge Broadband and get the fastest 6.0/768 connection for only $19.95/mo for the first 3 months! http://ads.osdn.com/?ad_id=2562&alloc_id=6184&op=click _______________________________________________ Jmol-developers mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/jmol-developers
