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News & Updates
New Setup PyMOL-open-source-windows-setup v2.0 has been released on January 20, 2025. More information under Windows Install.
New Plugin PySSA aims to combine PyMOL and ColabFold to enable the prediction and analysis of 3D protein structures for the scientific end-user. v1.0 has been released on July 10, 2024.
Official Release PyMOL v3.0 has been released on March 12, 2024.
New Plugin CavitOmiX calculate Catalophore™ cavities, predict protein structures with OpenFold by NVIDIA-BioNeMo, ESMFold and retrieve Alphafold models
Official Release PyMOL v2.5 has been released on May 10, 2021.
Python 3 New Python 3 compatibility guide for scripts and plugins
POSF New PyMOL fellowship announced for 2022-2023
Tutorial Plugins Tutorial updated for PyQt5
New Plugin PICv is a new plugin for clustering protein-protein interactions and visualization with available data from PDBe
Selection keywords New polymer.protein and polymer.nucleic selection keywords. Thanks everyone who participated in the poll!
Plugin Update MOLE 2.5 is an updated version of channel analysis software in PyMOL
New Script dssr_block is a wrapper for DSSR (3dna) and creates block-shaped nucleic acid cartoons
Older News See Older News.
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Sphere scale

==Overview==

This setting affects the apparent radius of spheres in the sphere representation. Default scale is set to 1.0.

Syntax

# set the sphere scale to size for selection.
cmd.set ("sphere_scale", size=1, selection='', state=0, updates=1, log=0, quiet=1)
# generally it's simpler to use the console form
set sphere_scale, size, selection
# you can print the current value for sphere_scale
get sphere_scale

size can be any floating point number, selection is the name of a selection.

Examples

Using 0.25 gives a nice balls&sticks representation with both lines and spheres turned on.

set_bond stick_color, white, (all), (all)
set_bond stick_radius, 0.14, (all), (all)
set sphere_scale, 0.25, (all)
show sticks
show spheres

set sphere_scale by itself will revert to default. Here you'll get a simple VDW rapresentation. <source lang="python"> set_bond stick_color, blue, (all), (all) set_bond stick_radius, 0.3, (all), (all) set sphere_transparency, ..→

A Random PyMOL-generated Cover. See Covers.