Adjust "quiver" arrowhead size

Lets user easily tweak vectors plotted by "quiver", making arrowheads bigger or smaller.

Description

So you've plotted data using "quiver" but would like to make the arrowheads bigger or smaller. It's easy:

Example:
N = 100;
h = quiver(1:N, 1:N, randn(N), randn(N));
adjust_quiver_arrowhead_size(h, 1.5);

• Required Products: MATLAB
• MATLAB release: MATLAB 7.13 (2011b)

[William]

Works like a charm.

[ATN]

Seems to work well in 2D, thanks for the contribution. Is scaling in the 3rd dimension not implemented yet?