how to get a plot quiver with velocity magnitude
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How to get a quiver plot with change in color basing on velocity vector magnitude
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Priyanshu Mishra
le 27 Nov 2019
Hi Bharathi,
You can use 'color' linespec to change the color of your velocity vectors. For your reference I have written a code. You may take help of it.
[x,y] = meshgrid(0:0.2:2,0:0.2:2);
u = cos(x).*y;
v = sin(x).*y;
figure
quiver(x,y,u,v,'color',[1 0 0])
The above code will give you red color velocity vectors. By changing the linespec for eg. [1 1 0], it will give you yellow color.
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Daniele Morandi
le 25 Nov 2022
Hi Priyanshu,
I guess that Bharathi meant that color could change depending on velocity magnitude, similarly to what happen in contour plot.
Colorbar should help reading magnitude related to color, if this is possible
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