Generate the surface plot.CTOP=green changes the color of the plot's top surface. The GRID option draws reference lines originating from the tick marks on all the axes. The ROTATE= option specifies a rotation angle of 45°. ZMAX=5 specifies the maximum value for the Z axis. ZMIN= -50 specifies the minimum value for the Z axis. Specifying a ZMIN= value that is below the minimum value in the input data set raises the plot above the horizontal plane. Data is not displayed if it exceeds the range specified by the ZMIN= and ZMAX= options.

proc g3d data=sashelp.lake;
   plot length*width=depth/
      ctop=green
      grid
      rotate=45
      zmax=5
      zmin=-50;
run;
quit;