How to set the contour with discrete color lines in surface plot?

Question

Hi, profs and experts. I'm trying to make a response surface graph with contour lines below. However, I came across with this issue: How to set the contour with discrete color lines in surface plot(Fig.1)?

It seems that the contour can only be defined as one specified color(Fig.2).

An example which I would like my graph to resemble is uploaded below(Fig.3).

Fig.1

Fig.2

Fig.3

KenwoodLUK · Answer

Thank you for replying.

However, I didn't mean the mesh or physical lines between the contour plot. The contour plot I referred to is the one below the response surface, which should lie on the X*Y area(I circled the area in the Fig added in this reply).

My hope is to generate a contour plot with color filled in the plain area like this, not like the default setting in which it generates only the contour plot line without color patterns filled in.

txnelson · Answer

Here is a surface plot I did in JMP.....what exactly is missing from this chart to what you want?  I chose a black mesh, but it can be whatever color you want.  Is it the physical lines between the contour colors that you want?