getting error in mesh plot

% Provided data

KFmax = [20, 40, 60, 80, 100];

KBmax = [20, 40, 60, 80, 100];

KBmax100 = [43.50297072, 46.52477297, 44.39002998, 41.32192544, 38.27960907];

KBmax80 = [41.24659136, 42.59908012, 39.69352292, 36.31204481, 33.18494278];

KBmax60 = [37.40881927, 36.83773483, 33.27098581, 29.76062133, 26.73705543];

KBmax40 = [30.46172094, 27.88434423, 24.07279092, 20.89331763, 18.36534748];

% Create a meshgrid

[X, Y] = meshgrid(KFmax, KBmax);

% Create a 3D surface mesh plot

figure;

surf(X, Y, KBmax100, 'FaceAlpha', 0.5);

hold on;

surf(X, Y, KBmax80, 'EdgeColor', 'k');

surf(X, Y, KBmax60, 'EdgeColor', 'r');

surf(X, Y, KBmax40, 'EdgeColor', 'g');

% Customize the plot

title('R*peak');

xlabel('KFmax');

ylabel('KBmax');

zlabel('R*peak');

grid on;

% Set axis limits

xlim([20, 100]);

ylim([20, 100]);

zlim([0, 100]);

% Set custom x and y ticks

xticks([20, 40, 60, 80, 100]);

yticks([20, 40, 60, 80, 100]);

% Display the legend

legend('KBmax100', 'KBmax80', 'KBmax60', 'KBmax40', 'Location', 'Best');

% Display the grid

grid on;

[Dyuman Joshi]

surf(X, Y, Z)

When using this syntax where X and Y are matrices, Z must be a matrix of the same size.

Which is not the case here, thus you get the error.

A general solution is to ensure that Z is of the same size as X and Y.

A particular solution might be to use scatteredInterpolant or griddedInterpolant to generate the corresponding Z matrix.

Answer 1

[Hassaan]

@Ehtisham Try this:

% Provided data
KFmax = [20, 40, 60, 80, 100];
KBmax = [20, 40, 60, 80, 100];
KBmax100 = [43.50297072, 46.52477297, 44.39002998, 41.32192544, 38.27960907];
KBmax80 = [41.24659136, 42.59908012, 39.69352292, 36.31204481, 33.18494278];
KBmax60 = [37.40881927, 36.83773483, 33.27098581, 29.76062133, 26.73705543];
KBmax40 = [30.46172094, 27.88434423, 24.07279092, 20.89331763, 18.36534748];

% Create a meshgrid
[X, Y] = meshgrid(KFmax, KBmax);

% Repeat KBmax100 to match the dimensions of X and Y
KBmax100_matrix = repmat(KBmax100, [5, 1]);

% Create a 3D surface mesh plot
figure;
surf(X, Y, KBmax100_matrix, 'EdgeColor', 'k');
colormap('jet'); % Adjust the colormap as needed

% Customize the plot
title('R*peak');
xlabel('KFmax');
ylabel('KBmax');
zlabel('R*peak');
grid on;

% Set axis limits
xlim([20, 100]);
ylim([20, 100]);
zlim([min(KBmax100_matrix(:)), max(KBmax100_matrix(:))]);

% Set custom x and y ticks
xticks([20, 40, 60, 80, 100]);
yticks([20, 40, 60, 80, 100]);

% Display the color bar
colorbar;

% Display the grid
grid on;

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