Circles and Ellipses

\setlength{\unitlength}{1cm}
\begin{picture}(6, 4)
  \linethickness{0.075mm}
  \multiput(0, 0)(1, 0){7}{\line(0, 1){4}}
  \multiput(0, 0)(0, 1){5}{\line(1, 0){6}} 
  % Ellipse:  u=3.0  v=2.0  a=1.9  b=1.9  
  %           phi=0.0 Grad
  \qbezier(4.9,2.0)(4.9,2.787)(4.3435,3.3435)
  \qbezier(4.3435,3.3435)(3.787,3.9)(3.0,3.9)
  \qbezier(3.0,3.9)(2.213,3.9)(1.6565,3.3435)
  \qbezier(1.6565,3.3435)(1.1,2.787)(1.1,2.0)
  \qbezier(1.1,2.0)(1.1,1.213)(1.6565,0.6565)
  \qbezier(1.6565,0.6565)(2.213,0.1)(3.0,0.1)
  \qbezier(3.0,0.1)(3.787,0.1)(4.3435,0.6565)
  \qbezier(4.3435,0.6565)(4.9,1.213)(4.9,2.0) 
  % Ellipse:  u=3.0  v=2.0  a=2.8  b=0.9  
  %           phi=0.0 Grad
  \qbezier(5.8,2.0)(5.8,2.3728)(4.9799,2.6364)
  \qbezier(4.9799,2.6364)(4.1598,2.9)(3.0,2.9)
  \qbezier(3.0,2.9)(1.8402,2.9)(1.0201,2.6364)
  \qbezier(1.0201,2.6364)(0.2,2.3728)(0.2,2.0)
  \qbezier(0.2,2.0)(0.2,1.6272)(1.0201,1.3636)
  \qbezier(1.0201,1.3636)(1.8402,1.1)(3.0,1.1)
  \qbezier(3.0,1.1)(4.1598,1.1)(4.9799,1.3636)
  \qbezier(4.9799,1.3636)(5.8,1.6272)(5.8,2.0) 
  \thicklines
  % Ellipse:  u=3.0  v=2.0  a=0.9  b=1.7 
  %           phi=30.0 Grad
  \qbezier(3.7794,2.45)(3.4273,3.0598)
          (2.9501,3.3592)
  \qbezier(2.9501,3.3592)(2.4728,3.6586)
          (2.15,3.4722)
  \qbezier(2.15,3.4722)(1.8272,3.2858)
          (1.8478,2.7228)
  \qbezier(1.8478,2.7228)(1.8685,2.1598)
          (2.2206,1.55)
  \qbezier(2.2206,1.55)(2.5727,0.9402)
          (3.0499,0.6408)
  \qbezier(3.0499,0.6408)(3.5272,0.3414)
          (3.85,0.5278)
  \qbezier(3.85,0.5278)(4.1728,0.7142)
          (4.1522,1.2772)
  \qbezier(4.1522,1.2772)(4.1315,1.8402)
          (3.7794,2.45)
  \end{picture}