
x=[5.4 5.5 5.7 5.4 6.1 6.8 7.6]
y=[4.2 5.8 6.5 8.8 9.85 10.2 10.8]
x=[7.4 x]
y=[5.8 y]
temp=8.05+(8.05-x)
y2=[y,y(length(y):-1:1),5.8]
x2=[x,temp(length(temp):-1:1),7.4]
plot(x2,y2,'ro-')
axis("square")
x2=[x,temp(length(temp):-1:1)]
