How to plot 3D Contours with MATLAB !?

[OMID-313]

Hi everybody

I have a dataset of points (XYZ as the coordinates) and V as the value at each point.
(Each of the above 4 data (X,Y,Z,V) are vectors e.g. 1x1000 vectors.)
I've plotted the 3D surface using patch command. (by the use of faces & vertices)

Now here goes the problem :

How can I plot the contour lines of V (NOT Z) over the 3D surface !?
(Actually the contour3 function plots 3D contour lines of Z ; But I need contour lines of V. )
I want some type of function or command that gets x,y,z and plots contours of V.
Actually I want something like **broken link removed** or even **broken link removed**.

Thanks a billion for your help.

 

[OMID-313]

Well actually, I recently found out that isosurface function does exactly what I need.
But there is still another problem with this function :

isosurface command needs the V to be a 3D matrix of size (x,y,z)

How can I convert vector V to a 3D matrix !?
( Vector V is not uniform or monotonic at all !! )

Thanks for your upcoming help.