Plot velocity vectors
h = feather(...)
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(...,LineSpec) draws a feather plot using the line type, marker symbol, and color specified by LineSpec.
feather(axes_handle,...) plots into the axes with the handle axes_handle instead of into the current axes (gca).
Define theta as values between and . Define r as a vector the same size as theta.
theta = -pi/2:pi/16:pi/2; r = 2*ones(size(theta));
Create a feather plot showing the direction of theta. Since feather uses Cartesian coordinates, convert theta and r to Cartesian coordinates using pol2cart.
[u,v] = pol2cart(theta,r); feather(u,v);