function h=cir(r,x,y)
%
% CIR is a function that draw a cirkel on the screen.
% X and Y are the cordinate of tthe cirkel and r is the radius.

%    Authors: Dingyu XUE, The University of Sussex 
%             Ole Barup Sorensen, Rapid Data Ltd 

%    Copyright (c) 1989-94 by Rapid Data Ltd
%    Revision 10:36  07/02/94

w=0:0.1:2*pi;
x1=r*cos(w);
y1=r*1.5*sin(w);
h=line(x+x1,y+y1);
set(h,'Color','w','LineWidth', 2);