How do I colour my surface fits a specific colour?

I have 4 surface fits on a figure. How do I colour each of the surfaces a different colour?

Here is my current code:

F1 = fit([MASS_FLOW_CORRECTED(:,1) P_RATIO_TOTAL(:,1)],EFF_TT(:,1),'lowess');
F2 = fit([MASS_FLOW_CORRECTED(:,2) P_RATIO_TOTAL(:,2)],EFF_TT(:,2),'lowess');
F3 = fit([MASS_FLOW_CORRECTED(:,3) P_RATIO_TOTAL(:,3)],EFF_TT(:,3),'lowess');

figure
plot(F1)
hold on
plot(F2) 
hold on
plot(F3)
hold on
plot(F4)
hold off
xlabel('Mass Flow (kg/s)')
ylabel('Total Pressure Ratio')
zlabel('Total-Total Efficiency (%)')
title('40mm Plate, Point 3')

Every option I have tried doesn't let me colour a surface fit.

Thanks.

Answer 1

[mizuki]

Use freezeColors in FileExchange to hold the colormap. For fitted results, use freezeColors after setting the colormap.

load franke
sf1 = fit([x, y],z,'poly23')
h1 = plot(sf1,[x,y],z);
colormap([0.7 0.7 0.7])
h1(1).LineStyle = 'none';
h1(1).FaceAlpha = 0.7;
freezeColors
hold on
sf2 = fit([x, y],z,'poly55');
h2 = plot(sf2,[x,y],z);
colormap([0.1 0.5 0.7])
h2(1).LineStyle = 'none';
h2(1).FaceAlpha = 0.7;
hold off;