How to plot the figure with 3 variables in 2d, with the value of z is proportional to the color?

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Tin Truong Chanh 2021-4-2

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/790699-how-to-plot-the-figure-with-3-variables-in-2d-with-the-value-of-z-is-proportional-to-the-color

评论： Tin Truong Chanh 2021-4-5

采纳的回答： David Hill

在 MATLAB Online 中打开

Dear Friends

I would like to plot the figure with 3 variables in 2d, with the value of z is proportional to the color as the figure attached. where X(1 x N); Y(1 x N) and Z(N*N) matrix. I want to have a scatter plot as an attached figure. Thank you for your attention

Code

load('w.mat');load('k.mat');load('Detal_E.mat');
w0=6.266963343377698e+05;
[X,Y] = meshgrid(w/w0,k);
h=surf(X, Y,Detal_E*1e6);
xlabel('w')
ylabel(' k')
zlabel('Detal E')
myColorMap = jet(250);
myColorMap(1,:) = 1;
colormap(myColorMap);
colorbar
shading interp;
view(2)

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采纳的回答

David Hill 2021-4-2

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/790699-how-to-plot-the-figure-with-3-variables-in-2d-with-the-value-of-z-is-proportional-to-the-color#answer_665174

在 MATLAB Online 中打开

m=min(Detal_E);
M=max(Detal_E);
c=(Detal_E-m)/(M-m)*9+1;
scatter(X,Y,25,c,'filled');

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David Hill 2021-4-5

在 MATLAB Online 中打开

load('w.mat');load('k.mat');load('Detal_E.mat');
w0=6.266963343377698e+05;
[X,Y] = meshgrid(w/w0,k);
m=min(Detal_E,[],'all');
M=max(Detal_E,[],'all');
c=(Detal_E-m)/(M-m)*9+1;
scatter(X(:),Y(:),5,c(:),'filled');