can i extract all y values for a x value from a contour plot

Please fing the attached image.i have vectors for each axis of size 101*101,let say i want all y values for a value of = 500 for all values of z. Thank you.

Answer 1

[KSSV]

Read the documentation of contour, you cn extract the required coordinates.

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

[sairohith mudduluru]

as far i know contour just plots the vectors..i thought of interp function but its not working..can u tell more on this..thank you.