Color filling between lines in figure

Hi!

I have a plot where the intersection of some lines form a shape, and I'd like to fill in this area with a color to show a feasible domain!

Could someone indicate how I can do that? Thank you!

Below is the code I used to plot and the figure.

contour(D, d, fobj, 'r')
xlabel('Coil diameter D (m)'), ylabel('Wire diameter d (m)'), ...
   title('Figure 1: Spring mass optimization problem (Exercise 6.1)')
hold on
contour(D, d, g1, [0.0 0.0])

contour(D, d, g2, [0.0 0.0])

contour(D, d, g3, [0.0 0.0])

contour(D, d, g4, [0.0 0.0])

contour(D, d, g5, [0.0 0.0])

Answer 1

[KSSV]

Use this https://in.mathworks.com/matlabcentral/fileexchange/22441-curve-intersections?focused=5165138&tab=function to get the intersection points and use patch to color.

[GCats]

it gives me a 2x1 row vector with all zeros?

[KSSV]

Atatch the data and code you have tried.