[COOT] Colour by ramachandran?

[Oliver Clarke]

Hi all,

Is it possible in coot to script a way to colour residues by their  
position on the ramachandran plot? This would be really handy,  
particularly for large structures, in order to visually see where  
problem areas of the structure are. I'm thinking of something like  
alpha=green, beta=blue, left=yellow, and outliers=red. On a similar  
note, would it be possible to map the output of the rotamer analysis  
and density fit tools onto the structure by colouring each residue  
according to rotamer-likelihood or real-space CC?

I'm not sure whether this type of function is possible right now, but  
it's something I think would also be very handy for validation  
purposes, not just during refinement, but particularly for assessing  
trouble-spots when one is using an already deposited structure  
(particularly as residues close in space often do not map close to  
each other in the sequence, so mapping validation output to the  
structure would make it substantially easier to interpret).

Cheers,
Oliver Clarke