%
% fig2dev (version 3.2.5) -L (m)mp version 0.05 --- Preamble
%

%
% mp output driver options:
%  -L mp
%

% +MP-ADDITIONAL-HEADER
verbatimtex
%&latex
\documentclass{article}
\begin{document}
etex
% -MP-ADDITIONAL-HEADER


%SetFigFont macros for latex
verbatimtex
%
\begingroup\makeatletter\ifx\SetFigFont\undefined%
\gdef\SetFigFont#1#2#3#4#5{%
  \reset@font\fontsize{#1}{#2pt}%
  \fontfamily{#3}\fontseries{#4}\fontshape{#5}%
  \selectfont}%
\fi\endgroup%
\ifx\SetFigFontSize\undefined%
\gdef\SetFigFontSize#1#2{%
  \fontsize{#1}{#2pt}%
  \selectfont}%
\fi%
etex

% Now draw the figure
beginfig(0)
% Some reasonable defaults
  labeloffset:=0;
  truecorners:=1;
  bboxmargin:=0;
% Begin ellipse object
  pickup pencircle scaled 0.94;
  path c;
  c = fullcircle scaled 5.54 yscaled 1.00
         rotated 0.00 shifted (115.59,646.30);
 fill c withcolor (black + 0.00white);
  draw c withcolor (0.00,0.00,0.00);
% End ellipse object
% Begin ellipse object
  pickup pencircle scaled 0.94;
  path c;
  c = fullcircle scaled 5.54 yscaled 1.00
         rotated 0.00 shifted (73.57,646.30);
 fill c withcolor (black + 0.00white);
  draw c withcolor (0.00,0.00,0.00);
% End ellipse object
% Begin ellipse object
  pickup pencircle scaled 0.94;
  path c;
  c = fullcircle scaled 5.54 yscaled 1.00
         rotated 0.00 shifted (157.67,646.30);
 fill c withcolor (black + 0.00white);
  draw c withcolor (0.00,0.00,0.00);
% End ellipse object
% Begin ellipse object
  pickup pencircle scaled 0.94;
  path c;
  c = fullcircle scaled 5.54 yscaled 1.00
         rotated 0.00 shifted (283.78,646.30);
 fill c withcolor (black + 0.00white);
  draw c withcolor (0.00,0.00,0.00);
% End ellipse object
% Begin ellipse object
  pickup pencircle scaled 0.94;
  path c;
  c = fullcircle scaled 5.54 yscaled 1.00
         rotated 0.00 shifted (241.70,646.30);
 fill c withcolor (black + 0.00white);
  draw c withcolor (0.00,0.00,0.00);
% End ellipse object
% Begin ellipse object
  pickup pencircle scaled 0.94;
  path c;
  c = fullcircle scaled 5.54 yscaled 1.00
         rotated 0.00 shifted (199.69,646.30);
 fill c withcolor (black + 0.00white);
  draw c withcolor (0.00,0.00,0.00);
% End ellipse object
% Begin polyline object
  linecap:=0;
  linejoin:=0;
  pickup pencircle scaled 0.94;
  path p;
  p = (56.69, 678.61)
    --(311.81, 678.61)
    --(311.81, 607.75)
    --(56.69, 607.75)
    --(56.69, 678.61)--cycle;
  draw p withcolor (0.00,0.00,0.00);
% End polyline object
% Begin polyline object
  linecap:=0;
  linejoin:=2;
  pickup pencircle scaled 1.89;
  path p;
  p = (76.35, 642.14)
    --(76.47, 642.08)
    --(76.66, 641.95)
    --(77.04, 641.76)
    --(77.67, 641.45)
    --(78.36, 641.07)
    --(79.24, 640.63)
    --(80.31, 640.19)
    --(81.39, 639.69)
    --(82.65, 639.31)
    --(83.97, 638.87)
    --(85.42, 638.55)
    --(87.06, 638.24)
    --(88.88, 638.05)
    --(90.96, 637.92)
    --(93.17, 637.92)
    --(95.18, 638.05)
    --(97.13, 638.30)
    --(98.96, 638.61)
    --(100.66, 638.93)
    --(102.24, 639.37)
    --(103.69, 639.75)
    --(105.07, 640.25)
    --(106.39, 640.69)
    --(107.65, 641.20)
    --(108.79, 641.70)
    --(109.86, 642.14)
    --(110.80, 642.58)
    --(111.56, 642.90)
    --(112.82, 643.53);
  draw p withcolor (0.00,0.00,0.00);
% Draw arrowhead type 2
  linecap:=0;
  linejoin:=0;
  pickup pencircle scaled 1.89;
  path arr;
  arr = (106.33, 638.74)
      --(110.93, 642.58)
      --(105.07, 641.26)
      --(106.71, 640.50)
      --(106.33, 638.74) -- cycle;
  fill arr withcolor (0.00,0.00,0.00);
  draw arr withcolor (0.00,0.00,0.00);
% End polyline object
% Begin polyline object
  linecap:=0;
  linejoin:=2;
  pickup pencircle scaled 1.89;
  path p;
  p = (202.27, 643.59)
    --(202.39, 643.53)
    --(202.58, 643.34)
    --(203.02, 643.09)
    --(203.59, 642.65)
    --(204.35, 642.14)
    --(205.29, 641.57)
    --(206.30, 641.01)
    --(207.43, 640.38)
    --(208.69, 639.81)
    --(210.02, 639.24)
    --(211.46, 638.80)
    --(213.17, 638.43)
    --(214.99, 638.11)
    --(217.07, 637.92)
    --(219.28, 637.92)
    --(221.29, 638.05)
    --(223.24, 638.36)
    --(225.01, 638.74)
    --(226.71, 639.18)
    --(228.28, 639.69)
    --(229.73, 640.19)
    --(231.06, 640.82)
    --(232.38, 641.39)
    --(233.57, 642.02)
    --(234.77, 642.65)
    --(235.78, 643.21)
    --(236.66, 643.72)
    --(237.42, 644.22)
    --(238.68, 644.98);
  draw p withcolor (0.00,0.00,0.00);
% Draw arrowhead type 2
  linecap:=0;
  linejoin:=0;
  pickup pencircle scaled 1.89;
  path arr;
  arr = (232.57, 639.75)
      --(236.85, 643.91)
      --(231.12, 642.14)
      --(232.82, 641.51)
      --(232.57, 639.75) -- cycle;
  fill arr withcolor (0.00,0.00,0.00);
  draw arr withcolor (0.00,0.00,0.00);
% End polyline object
% Begin polyline object
  linecap:=0;
  linejoin:=2;
  pickup pencircle scaled 1.89;
  path p;
  p = (154.83, 642.14)
    --(154.71, 642.08)
    --(154.52, 642.02)
    --(154.14, 641.89)
    --(153.51, 641.64)
    --(152.82, 641.39)
    --(151.87, 641.07)
    --(150.87, 640.76)
    --(149.80, 640.44)
    --(148.54, 640.19)
    --(147.21, 639.87)
    --(145.76, 639.69)
    --(144.13, 639.43)
    --(142.30, 639.31)
    --(140.22, 639.24)
    --(138.02, 639.31)
    --(135.75, 639.43)
    --(133.61, 639.69)
    --(131.59, 639.94)
    --(129.76, 640.25)
    --(128.06, 640.63)
    --(126.49, 641.01)
    --(124.98, 641.39)
    --(123.59, 641.83)
    --(122.27, 642.20)
    --(121.13, 642.58)
    --(120.13, 642.90)
    --(118.43, 643.53);
  draw p withcolor (0.00,0.00,0.00);
% Draw arrowhead type 2
  linecap:=0;
  linejoin:=0;
  pickup pencircle scaled 1.89;
  path arr;
  arr = (126.30, 642.08)
      --(120.38, 642.77)
      --(125.35, 639.43)
      --(124.72, 641.20)
      --(126.30, 642.08) -- cycle;
  fill arr withcolor (0.00,0.00,0.00);
  draw arr withcolor (0.00,0.00,0.00);
% End polyline object
% Begin polyline object
  linecap:=0;
  linejoin:=2;
  pickup pencircle scaled 1.89;
  path p;
  p = (282.33, 642.14)
    --(282.20, 642.08)
    --(281.89, 641.95)
    --(281.39, 641.76)
    --(280.63, 641.45)
    --(279.62, 641.07)
    --(278.49, 640.63)
    --(277.17, 640.19)
    --(275.78, 639.69)
    --(274.27, 639.31)
    --(272.69, 638.87)
    --(270.99, 638.55)
    --(269.17, 638.24)
    --(267.15, 638.05)
    --(265.01, 637.92)
    --(262.74, 637.92)
    --(260.54, 638.05)
    --(258.46, 638.36)
    --(256.63, 638.74)
    --(254.99, 639.12)
    --(253.54, 639.62)
    --(252.22, 640.13)
    --(250.96, 640.63)
    --(249.89, 641.20)
    --(248.88, 641.76)
    --(247.94, 642.27)
    --(247.24, 642.71)
    --(245.92, 643.53);
  draw p withcolor (0.00,0.00,0.00);
% Draw arrowhead type 2
  linecap:=0;
  linejoin:=0;
  pickup pencircle scaled 1.89;
  path arr;
  arr = (253.35, 640.57)
      --(247.69, 642.39)
      --(251.91, 638.17)
      --(251.59, 640.00)
      --(253.35, 640.57) -- cycle;
  fill arr withcolor (0.00,0.00,0.00);
  draw arr withcolor (0.00,0.00,0.00);
% End polyline object
% Begin polyline object
  linecap:=0;
  linejoin:=2;
  pickup pencircle scaled 1.89;
  path p;
  p = (70.74, 650.52)
    --(70.61, 650.65)
    --(70.43, 651.02)
    --(70.05, 651.59)
    --(69.54, 652.35)
    --(68.91, 653.35)
    --(68.22, 654.55)
    --(67.53, 655.81)
    --(66.90, 657.13)
    --(66.39, 658.46)
    --(66.02, 659.78)
    --(65.83, 661.10)
    --(65.83, 662.36)
    --(66.14, 663.62)
    --(66.83, 664.82)
    --(67.97, 665.89)
    --(69.29, 666.65)
    --(70.74, 667.21)
    --(72.31, 667.65)
    --(73.89, 667.97)
    --(75.40, 668.16)
    --(76.79, 668.28)
    --(78.17, 668.41)
    --(79.50, 668.41)
    --(80.82, 668.47)
    --(82.08, 668.41)
    --(83.40, 668.41)
    --(84.72, 668.28)
    --(86.05, 668.16)
    --(87.37, 667.97)
    --(88.69, 667.65)
    --(89.95, 667.21)
    --(91.02, 666.65)
    --(91.78, 665.89)
    --(92.09, 664.94)
    --(92.03, 663.94)
    --(91.59, 662.80)
    --(90.90, 661.67)
    --(89.95, 660.54)
    --(88.88, 659.34)
    --(87.62, 658.14)
    --(86.24, 656.94)
    --(84.85, 655.81)
    --(83.40, 654.68)
    --(82.02, 653.61)
    --(80.76, 652.66)
    --(79.69, 651.91)
    --(77.80, 650.52);
  draw p withcolor (1.00,0.00,0.00);
% Draw arrowhead type 2
  linecap:=0;
  linejoin:=0;
  pickup pencircle scaled 1.89;
  path arr;
  arr = (83.34, 656.38)
      --(79.50, 651.78)
      --(84.98, 654.11)
      --(83.21, 654.55)
      --(83.34, 656.38) -- cycle;
  fill arr withcolor (1.00,0.00,0.00);
  draw arr withcolor (1.00,0.00,0.00);
% End polyline object
% Begin polyline object
  linecap:=0;
  linejoin:=2;
  pickup pencircle scaled 1.89;
  path p;
  p = (112.57, 653.23)
    --(112.44, 653.35)
    --(112.25, 653.73)
    --(111.87, 654.30)
    --(111.37, 655.06)
    --(110.74, 656.06)
    --(110.05, 657.26)
    --(109.35, 658.52)
    --(108.72, 659.84)
    --(108.22, 661.17)
    --(107.84, 662.49)
    --(107.65, 663.81)
    --(107.65, 665.07)
    --(107.97, 666.33)
    --(108.66, 667.53)
    --(109.80, 668.60)
    --(111.12, 669.35)
    --(112.57, 669.92)
    --(114.14, 670.36)
    --(115.72, 670.68)
    --(117.23, 670.87)
    --(118.61, 670.99)
    --(120.00, 671.12)
    --(121.32, 671.12)
    --(122.65, 671.18)
    --(123.91, 671.12)
    --(125.23, 671.12)
    --(126.55, 670.99)
    --(127.87, 670.87)
    --(129.20, 670.68)
    --(130.52, 670.36)
    --(131.78, 669.92)
    --(132.85, 669.35)
    --(133.61, 668.60)
    --(133.92, 667.65)
    --(133.86, 666.65)
    --(133.42, 665.51)
    --(132.72, 664.38)
    --(131.78, 663.24)
    --(130.71, 662.05)
    --(129.45, 660.85)
    --(128.06, 659.65)
    --(126.68, 658.52)
    --(125.23, 657.39)
    --(123.84, 656.31)
    --(122.58, 655.37)
    --(121.51, 654.61)
    --(119.62, 653.23);
  draw p withcolor (1.00,0.00,0.00);
% Draw arrowhead type 2
  linecap:=0;
  linejoin:=0;
  pickup pencircle scaled 1.89;
  path arr;
  arr = (125.17, 659.09)
      --(121.32, 654.49)
      --(126.80, 656.82)
      --(125.04, 657.26)
      --(125.17, 659.09) -- cycle;
  fill arr withcolor (1.00,0.00,0.00);
  draw arr withcolor (1.00,0.00,0.00);
% End polyline object
% Begin polyline object
  linecap:=0;
  linejoin:=2;
  pickup pencircle scaled 1.89;
  path p;
  p = (155.84, 651.91)
    --(155.72, 652.03)
    --(155.53, 652.41)
    --(155.15, 652.98)
    --(154.65, 653.73)
    --(154.02, 654.74)
    --(153.32, 655.94)
    --(152.63, 657.20)
    --(152.00, 658.52)
    --(151.50, 659.84)
    --(151.12, 661.17)
    --(150.93, 662.49)
    --(150.93, 663.75)
    --(151.24, 665.01)
    --(151.94, 666.20)
    --(153.07, 667.28)
    --(154.39, 668.03)
    --(155.84, 668.60)
    --(157.42, 669.04)
    --(158.99, 669.35)
    --(160.50, 669.54)
    --(161.89, 669.67)
    --(163.28, 669.80)
    --(164.60, 669.80)
    --(165.92, 669.86)
    --(167.18, 669.80)
    --(168.50, 669.80)
    --(169.83, 669.67)
    --(171.15, 669.54)
    --(172.47, 669.35)
    --(173.80, 669.04)
    --(175.06, 668.60)
    --(176.13, 668.03)
    --(176.88, 667.28)
    --(177.20, 666.33)
    --(177.13, 665.32)
    --(176.69, 664.19)
    --(176.00, 663.06)
    --(175.06, 661.92)
    --(173.98, 660.72)
    --(172.72, 659.53)
    --(171.34, 658.33)
    --(169.95, 657.20)
    --(168.50, 656.06)
    --(167.12, 654.99)
    --(165.86, 654.05)
    --(164.79, 653.29)
    --(162.90, 651.91);
  draw p withcolor (1.00,0.00,0.00);
% Draw arrowhead type 2
  linecap:=0;
  linejoin:=0;
  pickup pencircle scaled 1.89;
  path arr;
  arr = (168.44, 657.76)
      --(164.60, 653.17)
      --(170.08, 655.50)
      --(168.31, 655.94)
      --(168.44, 657.76) -- cycle;
  fill arr withcolor (1.00,0.00,0.00);
  draw arr withcolor (1.00,0.00,0.00);
% End polyline object
% Begin polyline object
  linecap:=0;
  linejoin:=2;
  pickup pencircle scaled 1.89;
  path p;
  p = (195.53, 651.91)
    --(195.40, 652.03)
    --(195.21, 652.41)
    --(194.83, 652.98)
    --(194.33, 653.73)
    --(193.70, 654.74)
    --(193.01, 655.94)
    --(192.31, 657.20)
    --(191.69, 658.52)
    --(191.18, 659.84)
    --(190.80, 661.17)
    --(190.61, 662.49)
    --(190.61, 663.75)
    --(190.93, 665.01)
    --(191.62, 666.20)
    --(192.76, 667.28)
    --(194.08, 668.03)
    --(195.53, 668.60)
    --(197.10, 669.04)
    --(198.68, 669.35)
    --(200.19, 669.54)
    --(201.57, 669.67)
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    --(204.28, 669.80)
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    --(213.48, 669.04)
    --(214.74, 668.60)
    --(215.81, 668.03)
    --(216.57, 667.28)
    --(216.88, 666.33)
    --(216.82, 665.32)
    --(216.38, 664.19)
    --(215.69, 663.06)
    --(214.74, 661.92)
    --(213.67, 660.72)
    --(212.41, 659.53)
    --(211.02, 658.33)
    --(209.64, 657.20)
    --(208.19, 656.06)
    --(206.80, 654.99)
    --(205.54, 654.05)
    --(204.47, 653.29)
    --(202.58, 651.91);
  draw p withcolor (1.00,0.00,0.00);
% Draw arrowhead type 2
  linecap:=0;
  linejoin:=0;
  pickup pencircle scaled 1.89;
  path arr;
  arr = (208.13, 657.76)
      --(204.28, 653.17)
      --(209.76, 655.50)
      --(208.00, 655.94)
      --(208.13, 657.76) -- cycle;
  fill arr withcolor (1.00,0.00,0.00);
  draw arr withcolor (1.00,0.00,0.00);
% End polyline object
% Begin polyline object
  linecap:=0;
  linejoin:=2;
  pickup pencircle scaled 1.89;
  path p;
  p = (238.05, 651.91)
    --(237.92, 652.03)
    --(237.73, 652.41)
    --(237.35, 652.98)
    --(236.85, 653.73)
    --(236.22, 654.74)
    --(235.53, 655.94)
    --(234.83, 657.20)
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    --(233.70, 659.84)
    --(233.32, 661.17)
    --(233.13, 662.49)
    --(233.13, 663.75)
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    --(236.60, 668.03)
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    --(242.71, 669.54)
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    --(253.35, 669.54)
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    --(256.00, 669.04)
    --(257.26, 668.60)
    --(258.33, 668.03)
    --(259.09, 667.28)
    --(259.40, 666.33)
    --(259.34, 665.32)
    --(258.90, 664.19)
    --(258.20, 663.06)
    --(257.26, 661.92)
    --(256.19, 660.72)
    --(254.93, 659.53)
    --(253.54, 658.33)
    --(252.16, 657.20)
    --(250.71, 656.06)
    --(249.32, 654.99)
    --(248.06, 654.05)
    --(246.99, 653.29)
    --(245.10, 651.91);
  draw p withcolor (1.00,0.00,0.00);
% Draw arrowhead type 2
  linecap:=0;
  linejoin:=0;
  pickup pencircle scaled 1.89;
  path arr;
  arr = (250.65, 657.76)
      --(246.80, 653.17)
      --(252.28, 655.50)
      --(250.52, 655.94)
      --(250.65, 657.76) -- cycle;
  fill arr withcolor (1.00,0.00,0.00);
  draw arr withcolor (1.00,0.00,0.00);
% End polyline object
% Begin polyline object
  linecap:=0;
  linejoin:=2;
  pickup pencircle scaled 1.89;
  path p;
  p = (280.57, 651.91)
    --(280.44, 652.03)
    --(280.25, 652.41)
    --(279.87, 652.98)
    --(279.37, 653.73)
    --(278.74, 654.74)
    --(278.05, 655.94)
    --(277.35, 657.20)
    --(276.72, 658.52)
    --(276.22, 659.84)
    --(275.84, 661.17)
    --(275.65, 662.49)
    --(275.65, 663.75)
    --(275.97, 665.01)
    --(276.66, 666.20)
    --(277.80, 667.28)
    --(279.12, 668.03)
    --(280.57, 668.60)
    --(282.14, 669.04)
    --(283.72, 669.35)
    --(285.23, 669.54)
    --(286.61, 669.67)
    --(288.00, 669.80)
    --(289.32, 669.80)
    --(290.65, 669.86)
    --(291.91, 669.80)
    --(293.23, 669.80)
    --(294.55, 669.67)
    --(295.87, 669.54)
    --(297.20, 669.35)
    --(298.52, 669.04)
    --(299.78, 668.60)
    --(300.85, 668.03)
    --(301.61, 667.28)
    --(301.92, 666.33)
    --(301.86, 665.32)
    --(301.42, 664.19)
    --(300.72, 663.06)
    --(299.78, 661.92)
    --(298.71, 660.72)
    --(297.45, 659.53)
    --(296.06, 658.33)
    --(294.68, 657.20)
    --(293.23, 656.06)
    --(291.84, 654.99)
    --(290.58, 654.05)
    --(289.51, 653.29)
    --(287.62, 651.91);
  draw p withcolor (1.00,0.00,0.00);
% Draw arrowhead type 2
  linecap:=0;
  linejoin:=0;
  pickup pencircle scaled 1.89;
  path arr;
  arr = (293.17, 657.76)
      --(289.32, 653.17)
      --(294.80, 655.50)
      --(293.04, 655.94)
      --(293.17, 657.76) -- cycle;
  fill arr withcolor (1.00,0.00,0.00);
  draw arr withcolor (1.00,0.00,0.00);
% End polyline object
% Begin text object
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   \def\mpsetfnt{%
       \SetFigFontSize{18}{21.6}%
    }%
  etex;
  q = btex \mpsetfnt $c$ etex;
  picture p;
  p = q rotated 0.00;
  label.urt(p,((154.83,653.29))+llcorner p) withcolor (0.00,0.00,0.00);
% End text object
% Begin text object
  picture q;
  verbatimtex
   \def\mpsetfnt{%
       \SetFigFontSize{18}{21.6}%
    }%
  etex;
  q = btex \mpsetfnt $d$ etex;
  picture p;
  p = q rotated 0.00;
  label.urt(p,((196.85,653.29))+llcorner p) withcolor (0.00,0.00,0.00);
% End text object
% Begin text object
  picture q;
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   \def\mpsetfnt{%
       \SetFigFontSize{18}{21.6}%
    }%
  etex;
  q = btex \mpsetfnt $e$ etex;
  picture p;
  p = q rotated 0.00;
  label.urt(p,((238.93,653.29))+llcorner p) withcolor (0.00,0.00,0.00);
% End text object
% Begin text object
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   \def\mpsetfnt{%
       \SetFigFontSize{18}{21.6}%
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  etex;
  q = btex \mpsetfnt $f$ etex;
  picture p;
  p = q rotated 0.00;
  label.urt(p,((280.94,653.29))+llcorner p) withcolor (0.00,0.00,0.00);
% End text object
% Begin text object
  picture q;
  verbatimtex
   \def\mpsetfnt{%
       \SetFigFontSize{18}{21.6}%
    }%
  etex;
  q = btex \mpsetfnt $b$ etex;
  picture p;
  p = q rotated 0.00;
  label.urt(p,((112.82,653.29))+llcorner p) withcolor (0.00,0.00,0.00);
% End text object
% Begin text object
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   \def\mpsetfnt{%
       \SetFigFontSize{18}{21.6}%
    }%
  etex;
  q = btex \mpsetfnt $a$ etex;
  picture p;
  p = q rotated 0.00;
  label.urt(p,((72.19,653.29))+llcorner p) withcolor (0.00,0.00,0.00);
% End text object
endfig;
end