%%%%%%%%%%%%%%%%%%%%% Plotting of Geodesic Segment %%%%%%%%%%%%%%%%%%%%%
%
% PLOTRAY
% Usage: PLOTRAY(seg,d,col)
% Inputs:  seg = [x y] -  x,y are points inside or on the unit circle 
%          d - hyperbolic distance to plot the segment
%          col - plotting color 
%
%      the hyperbolic geodesic arc connecting x and y is constructed
%      and plotted  

function re = plotray(seg,d,col)             
   w = georay(seg,d);
   plot(real(w),imag(w),[col '-']);
   re = w(length(w));
   clear w;