function LEM_show_airways_graph(airways)
% LEM_show_airways_graph - display airway laes as a directed graph
% On input:
%     airways (airway struct): airway info
% On output:
%    <displays figure with directed graph>
% Call:
%    LEM_show_airways_graph(airways);
% Author:
%     T. Henderson
%     UU
%     Fall 2020
%

clf
x = airways.lane_vertexes(:,1);
y = airways.lane_vertexes(:,2);
z = airways.lane_vertexes(:,3);
G = airways.G;
plot(G,'XData',x,'YData',y,'ZData',z);
