How to get a 3D contour plot with two matrices and a vector

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Jacob Jepson 2020-2-13

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https://ww2.mathworks.cn/matlabcentral/answers/505360-how-to-get-a-3d-contour-plot-with-two-matrices-and-a-vector

评论： Jacob Jepson 2020-2-14

采纳的回答： darova

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I currently am using surf to plot the Image attached (see image of the surface plot, internetpic.jpg) . My code is;

surf(x_new',T_disc,all_out);

where x_new is a 1000x97 matrix, T_disc is a vector of length 97, and all_out is a 97x1000 matrix. Whilst the attached image is good, I would preferably like to have lines representing the data Like the second plot attached (picture of graphs with the blue lines, preferedpic.jpg).

I believe the problem is that x_new is a matrix, where as contour3 for example would prefer this to be a vector. Any suggestions?

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采纳的回答

darova 2020-2-13

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https://ww2.mathworks.cn/matlabcentral/answers/505360-how-to-get-a-3d-contour-plot-with-two-matrices-and-a-vector#answer_415466

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Use repmat to create a matrix from vector

Use plot3 to create lines

% surf(x_new',T_disc,all_out);
T_disc1 = repmat(T_disc(:),[1 1000]);
plot3(x_new',T_disc1,all_out);

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darova 2020-2-14

You mean color or direction?

Jacob Jepson 2020-2-14

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Derova, I managed to solve my problem by using a loop

for i=1:2:size(s_out) %size(s_out) is the length of the T_disc1 row 
plot3((x_new(:,i))',T_disc1(i,:),all_out(i,:),'b');
grid on 
hold on 
end 

Thanks for your help!

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MATLAB Graphics 2-D and 3-D Plots Surfaces, Volumes, and Polygons Surface and Mesh Plots

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