How to highlight particular points in a 3D surf plot?

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vishnu venkat
vishnu venkat 2017-6-6
评论： vishnu venkat 2017-6-8
I would like to highlight only important points that I want in a 3D surf plot. Please suggest a method to do it.
Thank You in advance!

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KSSV
KSSV 2017-6-7
[X,Y,Z] = peaks(25) ;
surf(X,Y,Z)
hold on
%%highlight points which are greater then 5
idx = Z>=3 ;
plot3(X(idx),Y(idx),Z(idx),'.r','markersize',10)
%%highlight points which are less then 5
idx = Z<=-3 ;
plot3(X(idx),Y(idx),Z(idx),'.b','markersize',10)
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KSSV
KSSV 2017-6-8
If you know the point's location, use plot straight away...if you know the value, use find to get the index and then plot.

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