MATLAB Answers

Vector plot over a surface plot

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Abdul Mannan
Abdul Mannan 19 Feb 2020
댓글: Abdul Mannan 19 Feb 2020
Dear experts,
How can I get a surface plot like below in which vectors will be shown on the surface plot.
Figure(1)
I have tried this way:
TT = hypot(qx, qy);
figure()
surf(x, y, TT);
xlim([-7 7]);
ylim([-5 5])
colormap jet
colorbar
view(2)
hold on
quiver(x1, y1, qx, qy, 'g'); % plot tangential traction over slip aera
xlabel('X-coordiante [mm]');
ylabel('Y-coordiante [mm]');
zlabel('MPa');
hold off
where, x and y are the coordinates in the X and Y direction and TT is a matrix. qx and qy are the x and y components of TT.
If I plot separately, I get the surface plot and vector plot as shown below figure 2 and 3. But if I plot in the same figure I don’t get a plot like figure 1, rather what I get same as below figure 2. I need expert’s help. Thanks.
Figure(2)
Figure (3)

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채택된 답변

KSSV
KSSV 19 Feb 2020
TT = hypot(qx, qy);
figure()
pcolor(x, y, TT);
xlim([-7 7]);
ylim([-5 5])
colormap jet
colorbar
view(2)
hold on
quiver(x1, y1, qx, qy, 'g'); % plot tangential traction over slip aera
xlabel('X-coordiante [mm]');
ylabel('Y-coordiante [mm]');
zlabel('MPa');
hold off
Don't use surf. It is a 3D plot, when you use quiver the arrows will be plotted under the surf and you cannot see them. Use pcolor.

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Abdul Mannan
Abdul Mannan 19 Feb 2020
It works. Thank you KSSV.

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