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Direction and Velocity Vector Graphs

Several MATLAB functions display data consisting of direction vectors and velocity vectors. This section describes these functions.

Function
 Description
compass
 Displays vectors emanating from the origin of a polar plot.
feather
 Displays vectors extending from equally spaced points along a horizontal line.
quiver
 Displays 2-D vectors specified by (u,v) components.
quiver3
 Displays 3-D vectors specified by (u,v,w) components.

You can define the vectors using one or two arguments. The arguments specify the x and y components of the vectors relative to the origin.

If you specify two arguments, the first specifies the x components of the vectors and the second the y components of the vectors. If you specify one argument, the functions treat the elements as complex numbers. The real parts are the x components and the imaginary parts are the y components.


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