[Jmol-users] Sphere contour/mesh density?

[Eric M. <em...@mi...>]

Using Jmol 12.2.16, I am happy that I can create a sphere centered on 
the average position of one or more atoms. For example, these 
commands generate a sphere of radius 8 Angstroms centered around the 
alpha carbon atom of residue 64 in chain B, colored the same color as 
that atom:

   load =1d66
   color chain
   backbone only
   isosurface s1 center (64:b.ca) sphere 8 mesh nofill
   mycolor = {64:b.ca}.color
   color isosurface @mycolor

Questions:

1. How do I display the spherical isosurface as contour lines? For 
example, this displays nothing:

   isosurface s1 center (64.ca) sphere 8 contour nofill

2. Is there a way to change the mesh density?

Thanks, -Eric