function v = parameters(M)
%PARAMETERS Return a structure of the Schwarz-Christoffel map parameters.

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

v.prevertex = M.prevertex;
v.constant = M.constant;
v.stripL = M.stripL;