feather (MATLAB Function Reference)

Plot velocity vectors

feather(U,V)
feather(Z)
feather(...,LineSpec)

Description

A feather plot displays vectors emanating from equally spaced points along a horizontal axis. You express the vector components relative to the origin of the respective vector.

feather(U,V)

displays the vectors specified by U and V, where U contains the x components as relative coordinates, and V contains the y components as relative coordinates.

feather(Z)

displays the vectors specified by the complex numbers in Z. This is equivalent to feather(real(Z),imag(Z)).

feather(...,LineSpec)

draws a feather plot using the line type, marker symbol, and color specified by LineSpec.

Examples

Create a feather plot showing the direction of theta:

theta = (-90:10:90)*pi/180; 
r = 2*ones(size(theta));
[u,v] = pol2cart(theta,r);
feather(u,v);