How do I quiver plot magnetic field

2017 7 4
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更新时间：2017 7 5
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I have the following code that will calculate the magnetic field from a stationary dipole in three dimensions:
function B = B_function_quiverplot(x,y,z)
%r_b vector from origin to gradiometer reading %r_m vector from origin to magnetisation mass %m is the magnetisation vector %% b0=[-.4e3 18.3e3 -45.8e3]; %earth field in nT r=[x;y;z] const = 1.2566e-6/(4*pi); m=(.2/const)*b0 %Evaluating B
dot_rm=dot(r,m); norm_r=norm(r)
B= const*( ((3*dot_rm)/(norm_r^5))*r - (1/(norm_r^3))*m)
end
How can I produce a 3-d quiver plot of the vector field?

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回答（1 个）

José-Luis
José-Luis 2017-7-4

0 个投票

You could use quiver3().

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matlabkid602
matlabkid602 2017-7-4
not getting good results
José-Luis
José-Luis 2017-7-4
"Not getting good results" is a poor descriptor of the issues you are facing.
  • What do you have?
  • What do you want?
matlabkid602
matlabkid602 2017-7-4
I would like to see field lines that look like this but for a magnetic dipole, but in three dimensions.
https://scicomp.stackexchange.com/questions/21470/plot-vector-field-in-matlab
José-Luis
José-Luis 2017-7-5
That's what quiver3() does.

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