define depth axis time axis for quiver matlab, depth wise current vectors time series,

Question

reddy 2014-3-13

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/121321-define-depth-axis-time-axis-for-quiver-matlab-depth-wise-current-vectors-time-series

编辑： Ihsan Trisarjono 2018-4-8

采纳的回答： Mischa Kim

HI all

I am having 21 columns, 1st column as time, 2nd column to last column different depths (10m to 105m with 5m interval).

Now I want to plot current vectors as follows.

Any help will be appreciated.

thank you in advance..

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Answer 1

Mischa Kim 2014-3-13

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https://ww2.mathworks.cn/matlabcentral/answers/121321-define-depth-axis-time-axis-for-quiver-matlab-depth-wise-current-vectors-time-series#answer_128122

在 MATLAB Online 中打开

Phanindra, use a quiver plot:

 t     = 0:10;
 d     = 0:10;
 [T,D] = meshgrid(t,d);  % create grid out of x- and y-vectors
 Vt = sin(T).*sin(D);    % data vector: x-component
 Vd = cos(T).^2;         % data vector: y-component 
 quiver(T,D,Vt,Vd)
 xlabel('time')
 ylabel('depth')

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reddy 2014-3-13

excellent answer Mr.Kim,

Thank you so much..

till this day I was very confused with the meshgrid and quiver command you made it very very easy.. thank you..

Ihsan Trisarjono 2018-4-8

编辑：Ihsan Trisarjono 2018-4-8

image.png

Hello Mr. Kim,

Once I tried to use your example of quiver plot, it gave me this result: (image attached)

What should I do to generate an exact quiver plot as questioned (with time series on x-axis, several layers of depth on y-axis, and vectors on certain layers of depth)?

Furthermore, if the data is loaded from a text file which consist of: - column 1: time (dd/mm HH:MM) - column 2: depth - column 3: vector u - column 4: vector v

Thank you

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