Hi all,

I am trying to represent the CA trace of a protein using cone frustum (each frustum is defined by two vertices and a radius at each vertex).

I was initially thinking that
    cartoon putty
with
   cartoon_trace,1
would work but unfortunately (for me) PyMol uses a smoothed CA trace as soon as I have >2 points. I have also tried to define each pair of residues/ca-atoms as a separate object but again these are automatically joined by a spline curve.

A second idea was to use cgos (lines and spheres) to define cone segments but this would most likely not turn out nice.

Would anybody out there be able to help me out? Either by telling me how to turn of the spline interpolation or how to define new (nice) cgos.

Thanks a million,
Mikael