I have a (2D) quiver plot for which I've set the DataAspectRatio property of the axes. This seems to have set the plot box aspect ratio correspondingly, and I find myself unable to change it, even as I resize the figure window. I have tried setting the PlotBoxAspectRatio prpoerty to something different, but it doesn't actually change to what I set it to, nor is there any visual change in the plot. All that happens is that PlotBoxAspectRatioMode changes to 'manual'.
How do I actually change the plot box aspect ratio? Is some setting possibly forcing it to stay the same?