Plot two surfaces each with different color
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I want to plot a surface with green color on another surface with red color such that the grids will be transparent. How can I achieve this in Matlab?
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Star Strider
2018-4-4
I’m not certain what you want.
Try this:
[X,Y] = meshgrid(linspace(-2, 2, 50));
Z = @(x,y,c) x.^2 + y.^2 + c;
figure(1)
surf(X, Y, +Z(X,Y,-4), 'FaceColor','g', 'FaceAlpha',0.5, 'EdgeColor','none')
hold on
surf(X, Y, -Z(X,Y,-4), 'FaceColor','r', 'FaceAlpha',0.5, 'EdgeColor','none')
hold off
grid on
4 个评论
Star Strider
2018-4-4
The mesh and similar functions will only plot the first matrix argument (and ignores the second) unless it gets all three (X,Y,Z) coordinate arguments. This code will produce the same as your original code, so you may want to plot ‘Y’ and ‘y’ separately, since your code does not plot them.
In order to centre the green mesh plot on the red one, I introduced two independent variable vectors, ‘xc’ and ‘yc’, and simply offset them by 0.5.
Try this:
X = reshape(FENd.x,M);
Y = reshape(FENd.y,M);
xc = linspace(1, size(X,2), size(X,2));
yc = linspace(1, size(X,1), size(X,1));
figure(1 )
h(1)= mesh(xc+0.5, yc+0.5, X, 'edgecolor','g');
hold on
h(2) = mesh(x, 'edgecolor','r');
xlabel('x')
ylabel('y')
zlabel('z')
hold off
grid on
Experiment to get the result you want.
Samuel
2018-4-4
Star Strider
2018-4-4
My pleasure.
If my Answer helped you solve your problem, please Accept it!
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