function [x y] = get_obstacles

%  This function reads in the Excel data file of
%  obstacle coordinates and splits them into
%  x- and y- vectors.

%  Written by J. Fine on Saturday, January 19, 2013

data = xlsread('Obstacle_Data');
[m n]= size(data);

for i = 1:m
    x(i) = data(i,1);
    y(i) = data(i,2);
end