Metapost Sandbox

                    beginfig(0);

width:=500;

height:=500;

​

z0 = (x1 + 0.25width, 0);

z1 = (0, y0+height/2);

z2 = (x1 + width/2, y1+height/2);

z3 = (x2 + width/2, y1);

z4 = (x3 - 0.25width, y0);

​

pickup pencircle xscaled 40 yscaled 10 rotated 30;

draw z0..z1..z2..z3..z4 withcolor white;

​

endfig;