% Graphical input
%
  u=[0 5];
  v=u;
% u and v define the scale

  x=[0 0 0 0 0 0 0 0 0 0 ];
  y=x;

  plot(u,v,'.',x,y,'-')
%
% now we have a plot to use for graphinput
%
  [x,y]=ginput(15);
  plot(u,v,'.',x,y,'-')
%
% here we use varying figures
%
  figure
  figure(2)
  plot(u,v,'.',x,y,'-')
  figure(1)
  [x,y]=ginput(15);
  figure(2)
  plot(u,v,'.',x,y,'-')
  figure(1)
  plot(u,v,'.',x,y,'-')