How can I draw 2 surfaces in one graph?

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Vijal Gala 2017-6-16

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/345005-how-can-i-draw-2-surfaces-in-one-graph

编辑： KSSV 2017-6-16

Hi,

I am trying to create a 3d graph with 2 surfaces as I have 2 sets of 3d data. When i run the programme, the graphs are generated seperately. Please help. Below is the code I used:

function [fitresult, gof] = graph1(a, b, c, d)
[xData, yData, zData] = prepareSurfaceData( a, b, c );
ft = fittype( 'biharmonicinterp' );
opts = fitoptions( ft );
opts.Normalize = 'on';
[fitresult{1}, gof(1)] = fit( [xData, yData], zData, ft, opts );
figure( 'Name', 'surface1' );
h = plot( fitresult{1}, [xData, yData], zData );
xlabel( 'a' );
ylabel( 'b' );
zlabel( 'x' );
grid on
hold on;
[xData, yData, zData] = prepareSurfaceData( a, b, d ),
ft = 'linearinterp';
opts = fitoptions( ft );
opts.Normalize = 'on';
[fitresult{2}, gof(1)] = fit( [xData, yData], zData, ft, opts );
figure( 'Name', 'surface2' );
h = plot( fitresult{2}, [xData, yData], zData );
xlabel( 'a' );
ylabel( 'b' );
zlabel( 'x' );
grid on