CalcArea
From PyMOLWiki
Overview
This code will calculate the area of a given selection. If you have a bunch of disparate selections, or one selection made up of various objects then you can use this to find the area.
The Code
def calcArea(sel, ASA=0, density=3, quiet=1): """ DESCRIPTION Calculate the area of an object or selection (as if it were one complete object). ARGUMENTS sel = string: atom selection ASA = 0/1: solvent excluded or solvent accessible surface area density = int: sampling quality {default: 3} """ tName = "__temp__for__doArea__" cmd.create(tName, sel) cmd.flag("ignore", tName, "clear") cmd.set("dot_solvent", int(ASA), tName) cmd.set("dot_density", int(density), tName) theArea = cmd.get_area(tName) cmd.delete(tName) if not int(quiet): print 'Area (solvent %s): %.3f Angstroms^2' % (['excluded', 'accessible'][int(ASA)], theArea) return theArea cmd.extend('calcArea', calcArea)