_contour.mdf /MDF|scale, ufac, x0, y0
0,0,-2,1 /border, lowtic, smooth, suppop, nth
dp=kt150 /pdef, ptick, pxval, pframe, psidel
1.5 /hlb, htl, hcr, htk, hxv, hsl
     /ominl,cminl,skipa,skipb,skipc,skipd,skipe,skipf
0,0, /xval, digxv, minxv, markxv
0,,,0,,,0 /levopt, conbeg, conend, lbup, lbmult, logopt, labelcol
10,1,C1=kt150,0,0,0 /cint,lintyp,catt,label,dense,digits,conlo,conhi