MATLAB Function Reference

feather

Plot velocity vectors

Syntax

• feather(U,V)
  feather(Z)
  feather(...,LineSpec)
  feather(axes_handle,...)
  h = feather(...)
  

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.

feather(axes_handle,...) plots into the axes with handle axes_handle instead of the current axes (gca).

h = feather(...) returns the handles to line objects in h.

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);
  
  
  

See Also

compass, LineSpec, rose

Direction and Velocity Plots for related functions

fclose

feof

© 1994-2005 The MathWorks, Inc.