how to display a direction vector in matlab
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I am trying to demonstrate some velocity data with their direction, basically want to combine velocity and direction in MATLAB. I would like to show the changes in velocity and direction in time. I was wondering if there is any function for that?
Thanks, Maryam
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Answers (3)
Star Strider
on 19 Sep 2014
Not certain exactly what you want to do, but see if this gets you started:
v = linspace(0.01, 0.1, 10); % Velocity
a = linspace(-90, 90, 10); % Angle (degrees)
x = v.*cosd(a); % Create ‘x’ Coordinate
y = v.*sind(a); % Create ‘y’ Coordinate
dx = gradient(x); % Create x-Direction Vector
dy = gradient(y); % Create y-Direction Vector
figure(1)
quiver(x, y, dx, dy)
grid
I used degrees for the angles, and so sind and cosd. If you use radian measure, use sin and cos.
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