Quiver uniform arrows spacing

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djr
djr el 30 de Abr. de 2020
Comentada: Ameer Hamza el 30 de Abr. de 2020
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

Respuesta aceptada

Ameer Hamza
Ameer Hamza el 30 de Abr. de 2020
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))
  2 comentarios
djr
djr el 30 de Abr. de 2020
Ohhh, I just needed to do it in both directions. Thanks a lot!
Ameer Hamza
Ameer Hamza el 30 de Abr. de 2020
Glad to be of help.

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