How to correct the amplitude of the vectors displayed in a 2D-vector-field plot?

6 views (last 30 days)
Motivation: I want to plot a vector field where U and V are arbritrary coordinates
and x and y are the vector components at each U,V-coordinate pair.
WHAT I DID: For instance, let U run from 0 to 100 in steps of 10 and V be a constant number, for example 0.
I constructed an example of vector field and used the function quiver to plot as described below:
clear all;
close all;
U=[0 10 20 30 40 50 60 70 80 90];
V=[0 0 0 0 0 0 0 0 0 0];
x=[0 0 0 0 1 -1 2 -2 1 2];
y=[1 2 -1 -2 0 0 0 0 1 2];
Vector=[U' V' x' y'];
quiver(Vector(:,1),Vector(:,2),Vector(:,3),Vector(:,4))
axis([-10 110 -20 20])
PROBLEM: The Amplitudes of the vectors displayed in the graph are wrong!!! It rescales following a procedure that I don't understand. I already tried to solve by changing the separation along the U-coordinate or changing the plot range but it did not fix the problem.
QUESTION: I wonder if someone can tell me what command I need to add to plot display the vectors in the graph with the real amplitudes.
I thank you in advance for your help
Emerson

Accepted Answer

Malcolm Lidierth
Malcolm Lidierth on 14 Oct 2011
Would setting scale to 0 help? See
doc quiver

More Answers (0)

Categories

Find more on Vector Fields in Help Center and File Exchange

Tags

Products

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by