Quiver uniform arrows spacing

Hello,

I have the following data (attached) that want to use in quiver plot as follows:

quint = 20;
quiver(xplot(1:quint:end),yplot(1:quint:end),uplot(1:quint:end),vplot(1:quint:end),1, 'Color','k','LineWidth',1)

My grid has a resolution of 50 m but when I reduce the number of arrows with quint to plot every 20th arrow, I get very dense arrows in the diagonal direction on the grid (attached figure).

I would like to have uniform distribution of arrows in the x and y directions.

Can you help me out wth this please?

Thanks.

djr

Answer 1

[Ameer Hamza]

You can decrease the density of arrows by downsampling, both along rows and columns

xplot = streamplot{1};
yplot = streamplot{2}.';
uplot = streamplot{3};
vplot = streamplot{4}.';

quint = 20;

quiver(xplot(1:quint:end,1:quint:end), yplot(1:quint:end,1:quint:end), ...
    uplot(1:quint:end,1:quint:end), vplot(1:quint:end,1:quint:end))

[djr]

Ohhh, I just needed to do it in both directions. Thanks a lot!

[Ameer Hamza]

Glad to be of help.