Hello, everyone.   I'm having a hard time understanding the different 
properties of the dots representation in pymol.   I just updated the wiki with 
what I've been able to piece together, but I still have many questions:
1) Why is the difference between dot_radius and dot_width (other than 
dot_radius takes precedence over dot_width, and dot_radius is only apparent 
after ray tracing)?   What are the scales on both dot_radius and dot_width?
2) Is dot_density the only way to adjust how many dots are on a 'sphere'?   It 
only accepts integer values from 1 to 4...  Is there some other way to control 
this parameter, since sometimes I'd love to use a value between dot_density=3 
and dot_density=4..?
3) Speaking of dot_density and spheres, is there a good way to adjust the size 
of the sphere that the dot representation uses?  I adjustable this through 
using alter, and changing the vdw setting for a selection (or object)... (then 
a rebuild)... Is this the best way?

Thanks.

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