How can I adjust the arrowhead proportions when creating a Quiver plot whose X- and Y- data ranges differ substantially?

I am attempting to create a Quiver plot using the data below, but the arrowheads have substantial overlap, resulting in a confusing plot.

x = 15:24;

y = 0.5:0.01:0.59;

u = ones(10);

v = 0.01*ones(10);

quiver(x,y,u,v)

xlim([min(x) max(x)])

ylim([min(y) max(y)])

Answer 1

[MathWorks Support Team]

This issue is due to the way the arrowheads are scaled in relation to the range of the axes.

As a workaround, the Quiver plot can be created on a set of axes with equal ranges. Then the axes can be re-labeled appropriately. For example,

x = 15:24;

y = 0.5:0.01:0.59;

u = ones(10);

v = 0.01*ones(10);

scale_factor = range(x)/range(y);

figure;

ah = axes;

quiver(x,y*scale_factor,u,v*scale_factor)

xlim([min(x) max(x)])

ylim([min(y) max(y)]*scale_factor)

set(ah,'YTick',y*scale_factor)

% properly re-label to y-axis

set(ah,'YTickLabel',y)