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[needHELP]matlab programming

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MusicMan

MusicMan

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matlab beam profile

hi. i have a data of a beam profile that i simulated. i plotted it in matlab using the normal plot and i got the plot below.



now i want to plot it in 3d such that i would have a 3d profile of the beam but i don't know how i'll do it in matlab. pls help me. i need it urgently.
my data is attached below.
tnx
 

body of revolutionmatlab

I think you have something missing... for plotting 3D data you need the relation of 3 different variables, and I only see the relation between 2 variables here, so only 2D data can be drawn...

Give some more info, pls
 

cartesian mesh code in matlab

tnx.
the data i have is only 1Dimension. i am supposed to rotate the data about r=0 so that i will have basically a 3d data(body of revolution) and then plot it. but i don't know how to do it in matlab. i hope someone could help me.=)
 

mean of profile of data in matlab

Hi

This code

Phi=0:pi/10:2*pi;
Theta=-pi/2:pi/10:pi;
[PHI,THETA]=meshgrid(Phi,Theta);
r0=0.5;
R=sin(PHI).*cos(THETA)+r0; % for example
[X,Y,Z]=sph2cart(THETA,PHI,R); %get cartesian values
mesh(X,Y,Z); %display Or
surf(X,Y,Z) % colored faces

produces this plot



Hope this helps you.
Sree
 

3d data matlab plot

You have a one dimensional scalar array. So how do you expect to get a
3 Dimensional graph ?

Do you mean:
data= { (0 x^) , (f_data y^), (0 z^)}

Or do you want to rotate f_data about the x-Axis ?

If you have a 3-D array you can use the "mesh" function.

Try this

a= [f_data,f_data,f_data]; % f_data is your data in a [200x1] Array
mesh(a)
 

matlab rotate data

hi. yes i want to rotate the data about the x-axis. the result i want to get is similar to the last figure below

 

mesh of revolution + matlab + data

hi. the data i gave is axially symmetric so want to rotate it around the axis. the result i need should be something like the figure below.

 

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