function plot_scattered(pos,z, resc)

% plot_scattered - plot 2D scattered data using triangulation.
%
%   plot_scattered(pos,z, resc);
%
%   if 'z' is ommited, it only plot a 2D scalar plot.
%   'resc==1' force a triangulation in [0,1]x[0,1].
%
%   'pos' should be of size 3xn or 2xn
%
%   Copyright (c) 2004 Gabriel Peyr