gradient arrows plot in matlab

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fima v
fima v 2023-5-22
评论： fima v 2023-5-24
Hello, the code bellow creates a shape as shown bellow.How ever i would like to convert this plot into gradient arrows shape as shown bellow.
is it possible in matlab?
Thanks.
a=0.819*10^(-3);
b=2.73*10^(-3);
Vo=15;
rho=linspace(a,b,100);
%Updated t
t=linspace(0,2*pi,360);
[rr,tt]=meshgrid(rho,t);
func_grid=Vo*(b/a)*(1./rr);
%Modify the inputs to surf to obtain a polar plot
surf(rr.*sin(tt),rr.*cos(tt),func_grid)
shading interp
colorbar
%change view as per requirement
view(2)

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采纳的回答

KSSV
KSSV 2023-5-22
a=0.819*10^(-3);
b=2.73*10^(-3);
Vo=15;
rho=linspace(a,b,100);
%Updated t
t=linspace(0,2*pi,360);
[rr,tt]=meshgrid(rho,t);
func_grid=Vo*(b/a)*(1./rr);
[u,v] = gradient(func_grid) ;
%Modify the inputs to surf to obtain a polar plot
pcolor(rr.*sin(tt),rr.*cos(tt),func_grid)
shading interp
colorbar
hold on
quiver(rr.*sin(tt),rr.*cos(tt),v,u,'k')
  1 个评论
fima v
fima v 2023-5-24
Hello, How can i make the arrow density less and array size larger.

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