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

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)

Answer 1

[David Hill]

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

[Tin Truong Chanh]

Hi David Hill

I have tried your code. However, the error about the length about X and Y "X and Y must be vectors of the same length." In scatter function X, Y, and Z should have the same length. However, In my case X(1xn) X(1xn) Z(nxn) matrix.

[David Hill]

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');

[Tin Truong Chanh]

This code matches well with my problem. Thank you so much for your help!