Contour on a contourf plot

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Ron Nativ
Ron Nativ 2020-6-25
评论： Ron Nativ 2020-6-25
Hello all,
I would like to plot black contour lines of 'Zi2' matrix on a previously plotted contourd plot (swith the matrix Zi2). The problem is that when I use contour, the colours of the contourf plot are being deleted and only the contours are stayed. Can someone help? here is my code:
[c h]= contourf(Xi,Yi,Zi,'linew',1)
clabel(c,h)
hold on;
contour(Xi,Yi,Zi2,'k')
THe plotted figure is attached.
Thanks for your help!
Ron

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KSSV
KSSV 2020-6-25
编辑：KSSV 2020-6-25
contourf gives you a colored plot. It fills the contour lines region with colors. To get whay you want use:
c = contour(Xi,Yi,Zi) ;
Now check, c has (x,y) coordinates. Now you can plot them using plot with required color.
plot(c(1,:),c(2,:),'k') ;
Or Striaght away, you can use contour ans specify the color.
contour(Xi,Yi,Zi,'k')
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Ron Nativ
Ron Nativ 2020-6-25
Thanks! but this command runs over the filled contour (contourf) and deltes its colors from some reason

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