how to get data(u,v,w) corresponding to spicific x ,y ,z in 3D quiver in matlab?

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S.Mostafa BaniHashemian
评论： S.Mostafa BaniHashemian 2024-1-3
hello.
I want to extract data(including: u,v,w) corresponding to spicific x ,y ,z (or specific coordinate) in a 3D quiver graph.
(this is a "matlab function" with quiver3 in simulink, and i want to give specific & unique x,y,z position to "matlab function" and extract corresponding data of u,v,w from it).
Can I also use the "ind2sub" and or "u=interp3(x,y,z)" command in "matlab function"?(How can I use it?)
Can anyone guide me?

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采纳的回答

Sulaymon Eshkabilov
Ran in:
if the quiver3() plot figure is obtained/saved, the data can be extracted, e.g.,
fig = openfig('Q3.fig');
fig = gcf;
axObjs = fig.Children;
dataObjs = axObjs.Children;
x = dataObjs(1).XData;
y = dataObjs(1).YData;
z = dataObjs(1).ZData;
[U,V,W] = surfnorm(x,y,z);
quiver3(x, y, z, U,V,W,0)
axis equal
shg

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