where 'area_min' is beginning area number, 'mesh' is the amount of lines to put on the surface (like a wireframe tesselation). I think this 'mesh' argument is what J. Crawford referred to as 'contour lines'. (That's a better description, actually) [6.0]
By default, if you just issue SPLOT with no arguments, it plots all surfaces with a 'surface mesh density' (wireframe tessellation density) of 4, I think.
Plot surfaces ANSYS uses for basis for geometric areas (similar to surface/face analogy in CADfix); works in 5.4 but will cause 5.5-5.7.0 to crash. Reintroduced at 5.7.1 and 6.0.
With the improvements to the solid modeling capabilities in ANSYS 6.0, the SPLOT command became more relevant in detecting potential problems with geometry.