The legend overlay is displayed when drawing

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龙 2024-8-29

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https://ww2.mathworks.cn/matlabcentral/answers/2148754-the-legend-overlay-is-displayed-when-drawing

编辑： dpb 2024-9-2

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龙 2024-9-2

在 MATLAB Online 中打开

clear all;

N = 50;

x = sort(rand(1,N));

y = rand(1,N);

z = rand(1,N);

x_interp = linspace(0,1,N);

y_interp = interp1(x, y, x_interp);

z_interp = interp1(x, z, x_interp);

z_real = z_interp + randn(1,N);

figure

h1 = plot3(x, y, z, 'o', 'MarkerSize', 6, 'MarkerFaceColor', 'r');

hold on;

plot3(x_interp, y_interp, z_interp, 'b-', 'LineWidth', 2);

plot3(x_interp, y_interp, z_real, 'g-', 'LineWidth', 2);

grid on;

set(gca, 'YDir', 'reverse');

xlabel('X');ylabel('Y');zlabel('Z');

title('隧道反演结果三维示意图');

p1 = patch(x, y, z, 'FaceColor', 'blue');

legend([h1, p1], {'反演结果', '填充'});

xlim([0 200]);

ylim([0 200]);

zlim([-25 0]);

hold off;

I tested the code on the webpage and there were no errors;

But on my local computer, I reinstalled Matlab and run the code, it still encountered errors. In the figure, there seems to be a shadow covering the top.

dpb 2024-9-2

编辑：dpb 2024-9-2

OK, that's interesting and informative. This leads to confriming the fact something is unique/different on the particular machine; now it's down to specifics that may matter. Which OS, release, is it updated? Same with MATLAB although with a reinstall if you downloaded afresh it should include updates but you didn't say which release with the question posting(*).

These kinds of graphical display issues often get into the specifics of the display hardware/chipset and drivers and the MATLAB renderer. Updating your graphics drivers from the chipset/card vendor can sometimes fix things.

However, first work through the suggestions at <resolving low level graphics issues> and you may be able to resolve it yourself. If switching to a software OpenGL renderer makes the issue go away, then it is pretty clearly something in the hardware/drivers.

(*) There's an alternative thing one could try albeit time-consuming; download a prior release and see if the symptom stays/goes away...one can have multiple releases of MATLAB installed at the same time so don't have to remove your current install; you just need patience and enough bandwidth it's not too much of a chore.

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