How to highlight a row in a surface plot?

Hello all,

I have done some calculation and in the result i have created a surface plot.

Actually the plot is divided in two separate matrix and i am jus adding them together to form a whole surface plot

How could i show the line of separation. I want to highlight this line in Surface plot and i know the row index.

Please suggest me any function the expected picture can be seen in the attachments.

Thank you

[madhan ravi]

If you know the row index then:

plot(matrix(index,:),'--k') % just give it a try

[Shubham Mohan Tatpalliwar]

it is forming some where down. and not at exact point

[madhan ravi]

If you could share the data it would be easy to analyse what’s going on.

[Shubham Mohan Tatpalliwar]

its very big with lot of files to be loaded in a program so i cant share it

Answer 1

[KSSV]

[X,Y,Z] = peaks(100) ;

% seperate here (pick some row randomly)
idx = randsample(100,1) ;

figure
hold on
surf(X,Y,Z) ;
plot3(X(idx,:),Y(idx,:),Z(idx,:),'r','LineWidth',3)

[Indira]

Hi KSSV,

If I have X and Y as vectors and Z a matrix of mxn?

Thanks for your support.