Plotting data in 3D

2023 5 23
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更新时间：2023 5 25
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I have a matrix that contains magnetic data in 3 axis (x,y,z) along with time (4th column). I need to plot this in a 3D graph, not points but lines of diffeernt color or some kind of mesh/net structure. How can i do that?

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KSSV
KSSV 2023-5-24
Ran in:

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Ran in:
T = readtable('https://in.mathworks.com/matlabcentral/answers/uploaded_files/1392204/plotdata.xlsx') ;
Warning: Column headers from the file were modified to make them valid MATLAB identifiers before creating variable names for the table. The original column headers are saved in the VariableDescriptions property.
Set 'VariableNamingRule' to 'preserve' to use the original column headers as table variable names.
plot3(T.(3),T.(4),T.(5),'r')

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Kanica Sachdev
Kanica Sachdev 2023-5-25
Thank you so much for your response. However, I want to show the three magnetic feild values with repsect to time. Currently, I have three graphs X(ut) vs time, Y(ut) vs time and Z(ut) vs time. I want to plot these three on a single graph
KSSV
KSSV 2023-5-25
Ran in:
Ran in:
T = readtable('https://in.mathworks.com/matlabcentral/answers/uploaded_files/1392204/plotdata.xlsx') ;
Warning: Column headers from the file were modified to make them valid MATLAB identifiers before creating variable names for the table. The original column headers are saved in the VariableDescriptions property.
Set 'VariableNamingRule' to 'preserve' to use the original column headers as table variable names.
figure
hold on
plot(T.(1),T.(3),'r')
plot(T.(1),T.(4),'b')
plot(T.(1),T.(5),'g')
legend('x','y','z')
Kanica Sachdev
Kanica Sachdev 2023-5-25
Thank you so much for your response. Can I get some kind of mesh/ net structure instead of lines?
KSSV
KSSV 2023-5-25
How you are expecting a mesh? At a time step only one point is given in the data.
Kanica Sachdev
Kanica Sachdev 2023-5-25
Something that can represent the magnetic feild in different directions. To visualize that the feilds are in x, y and z directions and not in a 2d plot
KSSV
KSSV 2023-5-25
Ran in:
Ran in:
T = readtable('https://in.mathworks.com/matlabcentral/answers/uploaded_files/1392204/plotdata.xlsx') ;
Warning: Column headers from the file were modified to make them valid MATLAB identifiers before creating variable names for the table. The original column headers are saved in the VariableDescriptions property.
Set 'VariableNamingRule' to 'preserve' to use the original column headers as table variable names.
x = T.(3) ;
y = T.(4) ;
z = T.(5) ;
dx = gradient(x) ;
dy = gradient(y) ;
dz = gradient(z) ;
quiver3(x,y,z,dx,dy,dz)
Kanica Sachdev
Kanica Sachdev 2023-5-25
In the above plot, the time data is missing. Can we represent it all in one plot?

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