void stack (stacked) CNTPLT.C Level 2
 
int stacked = 1 will cause the contour rings to be elevated if a 3-D workbox has been established and a call to plane3d() has been made. See plane3d().
= 0 will return the program to unstacked contours.
 
Calling stack() with a 1 will allow you to superimpose a contour plot on a 3-D surface or create contour rings that are elevated. An example of this is shown in the example JCONT.C.