How to make color magnitude by quiver plot?
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Hello
I have a problem with quiver plot. My code makes the plot perfectly but I would like to have also color magnitude on it. I mean the electric field can be observed by color change when arrow rotates. I appreiate all the helps in this regard. My code and sample date is below:
clc
clear all
Ex=csvread('position2_Ex_new.csv');
Ey=csvread('position2_Ey_new.csv');
theta = Ex(2:end, 1);
phi = Ex(1, 2:end);
data_x = Ex(2:end,2:end);
data_x = transpose(data_x);
% data_x = max(data,0);
data_y = Ey(2:end,2:end);
data_y = transpose(data_y);
% data_y = max(data,0);
[theta_,phi_]= meshgrid(theta,phi);
r=1e-3;
x=r*sin(theta_).*cos(phi_);
y=r*sin(theta_).*sin(phi_);
z=r*cos(phi_);
quiver(x,y,data_x,data_y);
% xlabel('x');
% ylabel('y');
set(gca,'XDir','reverse');
set(gca,'DataAspectRatio',[10 10 10])
camroll(-90)
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