Please, I want help in adjusting the quality of the figure surface shape as in the attached picture (as in color, and colored lines in the horizontal plane)

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T K 2022-12-28

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1885212-please-i-want-help-in-adjusting-the-quality-of-the-figure-surface-shape-as-in-the-attached-picture

编辑： Voss 2022-12-28

IMG_20221228_022856.jpg

在 MATLAB Online 中打开

options = odeset('RelTol',1e-6,'Stats','on');

% initial conditions

Xo = [0.5; 0.7; 2];

% choose parameters t and a

tspan = linspace(0,100);

a_vec = 0.01 : 0.005 : 0.03;

% ease the coding and readability

num_t = numel(tspan);

num_a = numel(a_vec);

num_x = numel(Xo);

% allocate output

X = zeros(num_t,num_x,num_a);

for idx = 1:num_a

% Collect all X values into a 3D matrix. Additional parameters to

% TestFunction can be added after ode45 options

[t,X(:,:,idx)] = ode45(@TestFunction,tspan,Xo,options,a_vec(idx));

end

34 successful steps 0 failed attempts 205 function evaluations 34 successful steps 0 failed attempts 205 function evaluations 34 successful steps 0 failed attempts 205 function evaluations 34 successful steps 0 failed attempts 205 function evaluations 34 successful steps 0 failed attempts 205 function evaluations

% make sure we have the proper dimmensions before calling surf

plot_t = repmat(t,1,num_a);

plot_a = repmat(a_vec,num_t,1);

plot_x = squeeze(X(:,1,:));

% create the surf plot

figure

surf(plot_t,plot_a,plot_x)

xlabel('t values')

ylabel('a values')

zlabel('x values')

grid on