[PyMOL] How to show one side of the surface of an object

2016-06-22 Thread sunyeping
Dear all, If we show surface of an object in pymol, the surface appears to wrap the object all around. But whether is it possible to show a surface that cover only one side of certain part of that object? For example, when I draw a surface of the active site that contacts a drug, I wish the surf

[PyMOL] helical tilt angle

2016-06-22 Thread Qasim Pars
Dear pymol users, I have the trajectory file (.xtc file) of a protein using GROMACS. gmx helixorient tool of GROMACS calculates it for each C-alpha atom of helix as a function of simulation time. Whereas, I would like to calculate only ONE helical tilt angle relative to the z -axis of a alpha heli