modulus.m

computation of conformal maps to polygonally bounded regions

function mu = modulus(M)
%MODULUS Conformal modulus of the generalized quadrilateral.
%   Returns the conformal modulus of the polygon in the rectmap (the
%   aspect ratio of the source rectangle).

%   Copyright 1998 by Toby Driscoll.
%   $Id: modulus.m 7 1998-05-10 04:37:19Z tad $

z = M.prevertex;
mu = max(imag(z)) / (2*max(real(z)));