Fill out Plot between V_Out1 and V_Out3

Hi,

I tried to fill out the Area between the 3 Plots described by the 3 functions (or rather only the upper and lower one) but it didn't work out as I wanted it to be. First I don't think I did the Interval correct because there is no break between -5 and 5kW and also I don't really know how to use the fill function (I just took it from a video from youtube).

[darova]

Please attach the code using this button

Show the result you want to get

[Daniel Senst]

t1 = linspace(-108000,-5000,500);
t2 = linspace(5000,108000,500);
 
U_c1 = 4.75;
U_c2 = 5;
U_c3 = 5.25;
V_o = 2.5;
G = 6.667*10^(-3);
I_p11 = t1/399;
I_p12 = t2/399;
V_Out1 = (U_c1/5)*(V_o+G*I_p11);
V_Out2 = (U_c2/5)*(V_o+G*I_p11);
V_Out3 = (U_c3/5)*(V_o+G*I_p11);
V_Out4 = (U_c1/5)*(V_o+G*I_p12);
V_Out5 = (U_c2/5)*(V_o+G*I_p12);
V_Out6 = (U_c3/5)*(V_o+G*I_p12);

plot(t1,V_Out1,'c--');
hold on
plot(t1,V_Out2, 'g:');
plot(t1,V_Out3, 'b-.');
plot(t2,V_Out4,'c--');
plot(t2,V_Out5, 'g:');
plot(t2,V_Out6, 'b-.');
hold off
xlabel('Power in W');
ylabel('V_O_u_t');
legend('V_O_u_t_1','V_O_u_t_2', 'V_O_u_t_3');

The area between V_Out1 and V_Out 3 as well as V_Out 4 and V_Out 6 should be filled out by a color. I tried it with the fill() command, but that didn't work for me

Answer 1

[darova]

flip the data

xx1 = [t1 flip(t1)];
yy1 = [V_Out1 flip(V_Out3)];
xx2 = [t2 flip(t2)];
yy2 = [V_Out4 flip(V_Out6)];
patch(xx1,yy1,'r')
patch(xx2,yy2,'r')

[darova]

Or use surf in this case

h1 = surf([t1;t1],[V_Out1;V_Out3],[t1;t1]*0);
h2 = surf([t2;t2],[V_Out4;V_Out6],[t2;t2]*0);
set([h1 h2],'facecolor','r','edgecolor','none')

Answer 2

[Star Strider]

Add these patch calls:

patch([t1 fliplr(t1)], [V_Out2 fliplr(V_Out3)], 'r', 'FaceAlpha',0.1, 'EdgeColor','none')       % V_Out2 & V_Out3
patch([t2 fliplr(t2)], [V_Out4 fliplr(V_Out6)], 'g', 'FaceAlpha',0.1, 'EdgeColor','none')       % V_Out4 & V_Out6

so the complete code is now:

t1 = linspace(-108000,-5000,500);
t2 = linspace(5000,108000,500);
 
U_c1 = 4.75;
U_c2 = 5;
U_c3 = 5.25;
V_o = 2.5;
G = 6.667*10^(-3);
I_p11 = t1/399;
I_p12 = t2/399;
V_Out1 = (U_c1/5)*(V_o+G*I_p11);
V_Out2 = (U_c2/5)*(V_o+G*I_p11);
V_Out3 = (U_c3/5)*(V_o+G*I_p11);
V_Out4 = (U_c1/5)*(V_o+G*I_p12);
V_Out5 = (U_c2/5)*(V_o+G*I_p12);
V_Out6 = (U_c3/5)*(V_o+G*I_p12);
plot(t1,V_Out1,'c--');
hold on
plot(t1,V_Out2, 'g:');
plot(t1,V_Out3, 'b-.');
plot(t2,V_Out4,'c--');
plot(t2,V_Out5, 'g:');
plot(t2,V_Out6, 'b-.');
patch([t1 fliplr(t1)], [V_Out2 fliplr(V_Out3)], 'r', 'FaceAlpha',0.1, 'EdgeColor','none')       % V_Out2 & V_Out3
patch([t2 fliplr(t2)], [V_Out4 fliplr(V_Out6)], 'g', 'FaceAlpha',0.1, 'EdgeColor','none')       % V_Out4 & V_Out6
hold off
xlabel('Power in W');
ylabel('V_O_u_t');
legend('V_O_u_t_1','V_O_u_t_2', 'V_O_u_t_3');

Make appropriate changes to get the result you want.