Plot the electric field distribution ?

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Mary Jon
Mary Jon 2014-3-17
回答： Antonio Cedillo Hernandez 2020-4-21
how Plot the electric field distribution above the contour ?
% Plot the electric field distribution
figure;
v_now;
[ex,ey]=gradient(v);
quiver(-ex,-ey); %Quiver command creates a plot, E=-grad(V), hence the negative sign
title('potential ')
how put contour in the same figure of electric field distribution?

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采纳的回答

Mischa Kim
Mischa Kim 2014-3-17
编辑：Mischa Kim 2014-3-17
Use hold all before or after the first plot command:
quiver(...) % replace the dots with your data
hold all;
contour(...)
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Mary Jon
Mary Jon 2014-3-17
Thanks Mischa
the figure appear exactly as I want it
Mary Jon
Mary Jon 2014-3-27
can I making these Arrows of electric field distribution as continuous lines instead of Arrows intersect the contour? How can do that?

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更多回答（1 个）

Antonio Cedillo Hernandez
Here you have the full MATLAB code explained (in spanish but the first comment is the code): https://www.youtube.com/watch?v=k9srU6aQfL0

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