On Feb 16, 2009, at 6:53 AM, nettles wrote:
Dear Elaine, I'm thinking this should be possible, but don't know how to do it. Can the labeling function in Chimera could be made more spacially flexible?
An example is below. The residue label coordinates are anchored to a fixed 3D point that may, or may not be desirable for a given view. Can this be adjusted?
It looks like these references may be set at centroids. Maybe one could have a toggle switch that sets the anchor projected a certain distance from a C-alpha along the viewing vector. That might give quick access unified text float-over
Thanks again for such a great tool. Jim
[attachment removed by Elaine] Dear Jim, I am frequently irked by the same issue. Currently residue labels are anchored at the centroid of the displayed atoms, whereas sometimes it would look better if they were anchored at the alpha- carbon. I've previously created a bug report about this. Longer term we would also like them to be movable with the mouse, but that also can't be done currently. Here is the bug/request tracking info: http://socrates2.cgl.ucsf.edu/trac/chimera/ticket/6866 http://socrates2.cgl.ucsf.edu/trac/chimera/ticket/167 One current workaround is that you can label some particular atom in the residue with residue information. However, currently that atom must be explicitly displayed (won't work to label some backbone atom if ribbon is shown and suppresses that atom... which I've also complained about!). Commands to do that: labelopt info residue la @ca [or if ribbon is shown, "la @cb" instead if you can live without the glycine residue labels] I hope this helps, Elaine ----- Elaine C. Meng, Ph.D. meng@cgl.ucsf.edu UCSF Computer Graphics Lab (Chimera team) and Babbitt Lab Department of Pharmaceutical Chemistry University of California, San Francisco http://www.cgl.ucsf.edu/home/meng/index.html