Re: [Matplotlib-users] quiver linewidht problem

[Benjamin R. <ben...@ou...>]

On Aug 15, 2013 3:07 PM, "vwf" <vw...@vu...> wrote:
>
> After some struggling I got my first plots with quiver working.
> A simple plot is very simple, but a complicated one is very different.
> Right now I have a 80x80 grid with multiple plots and I plan to go up.
> For this I need full control of the arrow dimensions.
>
> The only way I can get narrow arrow is by setting width:
> plt.quiver(x,y,u,v, width=0.001, headwidth=3, scale=0.07,...
> works fine for me. But I would like to set the linewidth per arrow.
>
> On stackoverflow I found:
> widths = np.linspace(0, 2, X.size)
> plt.quiver(X, Y, cos(deg), sin(deg), linewidths=widths)
>
> This did not work for me: the minimum width was too large.
> I there a way to create narrow arrows with varying width?
>

The point of the example was to show that one can assign an array of widths
to a quiver plot. The array can have whatever values you want. Note that
there is likely a subtle difference between "width" and "linewidth" as
keyword arguments that you might want to experiment with.

Cheers!
Ben Root