%!PS-Adobe-3.0 EPSF-3.0

%%Title: api-figure2.fig

%%Creator: fig2dev Version 3.2 Patchlevel 5d

%%CreationDate: Thu Apr 25 22:22:07 2013

%%BoundingBox: 0 0 363 179

%Magnification: 1.0000

%%EndComments

%%BeginProlog

/MyAppDict 100 dict dup begin def

/$F2psDict 200 dict def

$F2psDict begin

$F2psDict /mtrx matrix put

/col-1 {0 setgray} bind def

/col0 {0.000 0.000 0.000 srgb} bind def

/col1 {0.000 0.000 1.000 srgb} bind def

/col2 {0.000 1.000 0.000 srgb} bind def

/col3 {0.000 1.000 1.000 srgb} bind def

/col4 {1.000 0.000 0.000 srgb} bind def

/col5 {1.000 0.000 1.000 srgb} bind def

/col6 {1.000 1.000 0.000 srgb} bind def

/col7 {1.000 1.000 1.000 srgb} bind def

/col8 {0.000 0.000 0.560 srgb} bind def

/col9 {0.000 0.000 0.690 srgb} bind def

/col10 {0.000 0.000 0.820 srgb} bind def

/col11 {0.530 0.810 1.000 srgb} bind def

/col12 {0.000 0.560 0.000 srgb} bind def

/col13 {0.000 0.690 0.000 srgb} bind def

/col14 {0.000 0.820 0.000 srgb} bind def

/col15 {0.000 0.560 0.560 srgb} bind def

/col16 {0.000 0.690 0.690 srgb} bind def

/col17 {0.000 0.820 0.820 srgb} bind def

/col18 {0.560 0.000 0.000 srgb} bind def

/col19 {0.690 0.000 0.000 srgb} bind def

/col20 {0.820 0.000 0.000 srgb} bind def

/col21 {0.560 0.000 0.560 srgb} bind def

/col22 {0.690 0.000 0.690 srgb} bind def

/col23 {0.820 0.000 0.820 srgb} bind def

/col24 {0.500 0.190 0.000 srgb} bind def

/col25 {0.630 0.250 0.000 srgb} bind def

/col26 {0.750 0.380 0.000 srgb} bind def

/col27 {1.000 0.500 0.500 srgb} bind def

/col28 {1.000 0.630 0.630 srgb} bind def

/col29 {1.000 0.750 0.750 srgb} bind def

/col30 {1.000 0.880 0.880 srgb} bind def

/col31 {1.000 0.840 0.000 srgb} bind def

end

% This junk string is used by the show operators

/PATsstr 1 string def

/PATawidthshow { 	% cx cy cchar rx ry string

  % Loop over each character in the string

  {  % cx cy cchar rx ry char

    % Show the character

    dup				% cx cy cchar rx ry char char

    PATsstr dup 0 4 -1 roll put	% cx cy cchar rx ry char (char)

    false charpath		% cx cy cchar rx ry char

    /clip load PATdraw

    % Move past the character (charpath modified the

    % current point)

    currentpoint			% cx cy cchar rx ry char x y

    newpath

    moveto			% cx cy cchar rx ry char

    % Reposition by cx,cy if the character in the string is cchar

    3 index eq {			% cx cy cchar rx ry

      4 index 4 index rmoveto

    } if

    % Reposition all characters by rx ry

    2 copy rmoveto		% cx cy cchar rx ry

  } forall

  pop pop pop pop pop		% -

  currentpoint

  newpath

  moveto

} bind def

/PATcg {

  7 dict dup begin

    /lw currentlinewidth def

    /lc currentlinecap def

    /lj currentlinejoin def

    /ml currentmiterlimit def

    /ds [ currentdash ] def

    /cc [ currentrgbcolor ] def

    /cm matrix currentmatrix def

  end

} bind def

% PATdraw - calculates the boundaries of the object and

% fills it with the current pattern

/PATdraw {			% proc

  save exch

    PATpcalc			% proc nw nh px py

    5 -1 roll exec		% nw nh px py

    newpath

    PATfill			% -

  restore

} bind def

% PATfill - performs the tiling for the shape

/PATfill { % nw nh px py PATfill -

  PATDict /CurrentPattern get dup begin

    setfont

    % Set the coordinate system to Pattern Space

    PatternGState PATsg

    % Set the color for uncolored pattezns

    PaintType 2 eq { PATDict /PColor get PATsc } if

    % Create the string for showing

    3 index string		% nw nh px py str

    % Loop for each of the pattern sources

    0 1 Multi 1 sub {		% nw nh px py str source

	% Move to the starting location

	3 index 3 index		% nw nh px py str source px py

	moveto			% nw nh px py str source

	% For multiple sources, set the appropriate color

	Multi 1 ne { dup PC exch get PATsc } if

	% Set the appropriate string for the source

	0 1 7 index 1 sub { 2 index exch 2 index put } for pop

	% Loop over the number of vertical cells

	3 index 		% nw nh px py str nh

	{			% nw nh px py str

	  currentpoint		% nw nh px py str cx cy

	  2 index oldshow	% nw nh px py str cx cy

	  YStep add moveto	% nw nh px py str

	} repeat		% nw nh px py str

    } for

    5 { pop } repeat

  end

} bind def

% PATkshow - kshow with the current pattezn

/PATkshow {			% proc string

  exch bind			% string proc

  1 index 0 get			% string proc char

  % Loop over all but the last character in the string

  0 1 4 index length 2 sub {

				% string proc char idx

    % Find the n+1th character in the string

    3 index exch 1 add get	% string proc char char+1

    exch 2 copy			% strinq proc char+1 char char+1 char

    % Now show the nth character

    PATsstr dup 0 4 -1 roll put	% string proc chr+1 chr chr+1 (chr)

    false charpath		% string proc char+1 char char+1

    /clip load PATdraw

    % Move past the character (charpath modified the current point)

    currentpoint newpath moveto

    % Execute the user proc (should consume char and char+1)

    mark 3 1 roll		% string proc char+1 mark char char+1

    4 index exec		% string proc char+1 mark...

    cleartomark			% string proc char+1

  } for

  % Now display the last character

  PATsstr dup 0 4 -1 roll put	% string proc (char+1)

  false charpath		% string proc

  /clip load PATdraw

  neewath

  pop pop			% -

} bind def

% PATmp - the makepattern equivalent

/PATmp {			% patdict patmtx PATmp patinstance

  exch dup length 7 add		% We will add 6 new entries plus 1 FID

  dict copy			% Create a new dictionary

  begin

    % Matrix to install when painting the pattern

    TilingType PATtcalc

    /PatternGState PATcg def

    PatternGState /cm 3 -1 roll put

    % Check for multi pattern sources (Level 1 fast color patterns)

    currentdict /Multi known not { /Multi 1 def } if

    % Font dictionary definitions

    /FontType 3 def

    % Create a dummy encoding vector

    /Encoding 256 array def

    3 string 0 1 255 {

      Encoding exch dup 3 index cvs cvn put } for pop

    /FontMatrix matrix def

    /FontBBox BBox def

    /BuildChar {

	mark 3 1 roll		% mark dict char

	exch begin

	Multi 1 ne {PaintData exch get}{pop} ifelse  % mark [paintdata]

	  PaintType 2 eq Multi 1 ne or

	  { XStep 0 FontBBox aload pop setcachedevice }

	  { XStep 0 setcharwidth } ifelse

	  currentdict		% mark [paintdata] dict

	  /PaintProc load	% mark [paintdata] dict paintproc

	end

	gsave

	  false PATredef exec true PATredef

	grestore

	cleartomark		% -

    } bind def

    currentdict

  end				% newdict

  /foo exch			% /foo newlict

  definefont			% newfont

} bind def

% PATpcalc - calculates the starting point and width/height

% of the tile fill for the shape

/PATpcalc {	% - PATpcalc nw nh px py

  PATDict /CurrentPattern get begin

    gsave

	% Set up the coordinate system to Pattern Space

	% and lock down pattern

	PatternGState /cm get setmatrix

	BBox aload pop pop pop translate

	% Determine the bounding box of the shape

	pathbbox			% llx lly urx ury

    grestore

    % Determine (nw, nh) the # of cells to paint width and height

    PatHeight div ceiling		% llx lly urx qh

    4 1 roll				% qh llx lly urx

    PatWidth div ceiling		% qh llx lly qw

    4 1 roll				% qw qh llx lly

    PatHeight div floor			% qw qh llx ph

    4 1 roll				% ph qw qh llx

    PatWidth div floor			% ph qw qh pw

    4 1 roll				% pw ph qw qh

    2 index sub cvi abs			% pw ph qs qh-ph

    exch 3 index sub cvi abs exch	% pw ph nw=qw-pw nh=qh-ph

    % Determine the starting point of the pattern fill

    %(px, py)

    4 2 roll				% nw nh pw ph

    PatHeight mul			% nw nh pw py

    exch				% nw nh py pw

    PatWidth mul exch			% nw nh px py

  end

} bind def

% Save the original routines so that we can use them later on

/oldfill	/fill load def

/oldeofill	/eofill load def

/oldstroke	/stroke load def

/oldshow	/show load def

/oldashow	/ashow load def

/oldwidthshow	/widthshow load def

/oldawidthshow	/awidthshow load def

/oldkshow	/kshow load def

% These defs are necessary so that subsequent procs don't bind in

% the originals

/fill	   { oldfill } bind def

/eofill	   { oldeofill } bind def

/stroke	   { oldstroke } bind def

/show	   { oldshow } bind def

/ashow	   { oldashow } bind def

/widthshow { oldwidthshow } bind def

/awidthshow { oldawidthshow } bind def

/kshow 	   { oldkshow } bind def

/PATredef {

  MyAppDict begin

    {

    /fill { /clip load PATdraw newpath } bind def

    /eofill { /eoclip load PATdraw newpath } bind def

    /stroke { PATstroke } bind def

    /show { 0 0 null 0 0 6 -1 roll PATawidthshow } bind def

    /ashow { 0 0 null 6 3 roll PATawidthshow }

    bind def

    /widthshow { 0 0 3 -1 roll PATawidthshow }

    bind def

    /awidthshow { PATawidthshow } bind def

    /kshow { PATkshow } bind def

  } {

    /fill   { oldfill } bind def

    /eofill { oldeofill } bind def

    /stroke { oldstroke } bind def

    /show   { oldshow } bind def

    /ashow  { oldashow } bind def

    /widthshow { oldwidthshow } bind def

    /awidthshow { oldawidthshow } bind def

    /kshow  { oldkshow } bind def

    } ifelse

  end

} bind def

false PATredef

% Conditionally define setcmykcolor if not available

/setcmykcolor where { pop } {

  /setcmykcolor {

    1 sub 4 1 roll

    3 {

	3 index add neg dup 0 lt { pop 0 } if 3 1 roll

    } repeat

    setrgbcolor - pop

  } bind def

} ifelse

/PATsc {		% colorarray

  aload length		% c1 ... cn length

    dup 1 eq { pop setgray } { 3 eq { setrgbcolor } { setcmykcolor

  } ifelse } ifelse

} bind def

/PATsg {		% dict

  begin

    lw setlinewidth

    lc setlinecap

    lj setlinejoin

    ml setmiterlimit

    ds aload pop setdash

    cc aload pop setrgbcolor

    cm setmatrix

  end

} bind def

/PATDict 3 dict def

/PATsp {

  true PATredef

  PATDict begin

    /CurrentPattern exch def

    % If it's an uncolored pattern, save the color

    CurrentPattern /PaintType get 2 eq {

      /PColor exch def

    } if

    /CColor [ currentrgbcolor ] def

  end

} bind def

% PATstroke - stroke with the current pattern

/PATstroke {

  countdictstack

  save

  mark

  {

    currentpoint strokepath moveto

    PATpcalc				% proc nw nh px py

    clip newpath PATfill

    } stopped {

	(*** PATstroke Warning: Path is too complex, stroking

	  with gray) =

    cleartomark

    restore

    countdictstack exch sub dup 0 gt

	{ { end } repeat } { pop } ifelse

    gsave 0.5 setgray oldstroke grestore

  } { pop restore pop } ifelse

  newpath

} bind def

/PATtcalc {		% modmtx tilingtype PATtcalc tilematrix

  % Note: tiling types 2 and 3 are not supported

  gsave

    exch concat					% tilingtype

    matrix currentmatrix exch			% cmtx tilingtype

    % Tiling type 1 and 3: constant spacing

    2 ne {

	% Distort the pattern so that it occupies

	% an integral number of device pixels

	dup 4 get exch dup 5 get exch		% tx ty cmtx

	XStep 0 dtransform

	round exch round exch			% tx ty cmtx dx.x dx.y

	XStep div exch XStep div exch		% tx ty cmtx a b

	0 YStep dtransform

	round exch round exch			% tx ty cmtx a b dy.x dy.y

	YStep div exch YStep div exch		% tx ty cmtx a b c d

	7 -3 roll astore			% { a b c d tx ty }

    } if

  grestore

} bind def

/PATusp {

  false PATredef

  PATDict begin

    CColor PATsc

  end

} bind def

% right30

11 dict begin

/PaintType 1 def

/PatternType 1 def

/TilingType 1 def

/BBox [0 0 1 1] def

/XStep 1 def

/YStep 1 def

/PatWidth 1 def

/PatHeight 1 def

/Multi 2 def

/PaintData [

  { clippath } bind

  { 32 16 true [ 32 0 0 -16 0 16 ]

	{<00030003000c000c0030003000c000c0030003000c000c00

	30003000c000c00000030003000c000c0030003000c000c0

	030003000c000c0030003000c000c000>}

     imagemask } bind

] def

/PaintProc {

	pop

	exec fill

} def

currentdict

end

/P2 exch def

% crosshatch45

11 dict begin

/PaintType 1 def

/PatternType 1 def

/TilingType 1 def

/BBox [0 0 1 1] def

/XStep 1 def

/YStep 1 def

/PatWidth 1 def

/PatHeight 1 def

/Multi 2 def

/PaintData [

  { clippath } bind

  { 20 20 true [ 20 0 0 -20 0 20 ]

	{<8020004050102088201104400a02800401000a02

	8011044020882040501080200040501020882011

	04400a02800401000a0280110440208820405010>}

     imagemask } bind

] def

/PaintProc {

	pop

	exec fill

} def

currentdict

end

/P6 exch def

/cp {closepath} bind def

/ef {eofill} bind def

/gr {grestore} bind def

/gs {gsave} bind def

/sa {save} bind def

/rs {restore} bind def

/l {lineto} bind def

/m {moveto} bind def

/rm {rmoveto} bind def

/n {newpath} bind def

/s {stroke} bind def

/sh {show} bind def

/slc {setlinecap} bind def

/slj {setlinejoin} bind def

/slw {setlinewidth} bind def

/srgb {setrgbcolor} bind def

/rot {rotate} bind def

/sc {scale} bind def

/sd {setdash} bind def

/ff {findfont} bind def

/sf {setfont} bind def

/scf {scalefont} bind def

/sw {stringwidth} bind def

/tr {translate} bind def

/tnt {dup dup currentrgbcolor

  4 -2 roll dup 1 exch sub 3 -1 roll mul add

  4 -2 roll dup 1 exch sub 3 -1 roll mul add

  4 -2 roll dup 1 exch sub 3 -1 roll mul add srgb}

  bind def

/shd {dup dup currentrgbcolor 4 -2 roll mul 4 -2 roll mul

  4 -2 roll mul srgb} bind def

/$F2psBegin {$F2psDict begin /$F2psEnteredState save def} def

/$F2psEnd {$F2psEnteredState restore end} def

/pageheader {

save

newpath 0 179 moveto 0 0 lineto 363 0 lineto 363 179 lineto closepath clip newpath

-194.8 350.2 translate

1 -1 scale

$F2psBegin

10 setmiterlimit

0 slj 0 slc

 0.06299 0.06299 sc

} bind def

/pagefooter {

$F2psEnd

restore

} bind def

%%EndProlog

pageheader

%

% Fig objects follow

%

% 

% here starts figure with depth 50

% Arc

7.500 slw

0 slc

gs  clippath

3662 4014 m 3567 4132 l 3613 4170 l 3708 4052 l 3708 4052 l 3610 4127 l 3662 4014 l cp

eoclip

n 5895.0 5917.5 2902.8 -37.7581 -142.2419 arcn

gs col0 s gr

 gr

% arrowhead

0 slj

n 3662 4014 m 3610 4127 l 3708 4052 l 3662 4014 l  cp gs 0.00 setgray ef gr  col0 s

% Polyline

n 3105 4140 m 6660 4140 l 6660 5085 l 3105 5085 l

 cp gs col0 s gr 

% Polyline

n 6660 4140 m 8730 4140 l 8730 5085 l 6660 5085 l

 cp gs col7 0.50 shd ef gr gs col0 s gr 

% Polyline

n 3510 4140 m 3780 4140 l 3780 5085 l 3510 5085 l

 cp gs /PC [[1.00 1.00 1.00] [0.00 0.00 0.00]] def

15.00 15.00 sc P2 [16 0 0 -8 234.00 276.00] PATmp PATsp ef gr PATusp gs col0 s gr 

% Polyline

n 4365 4140 m 4635 4140 l 4635 5085 l 4365 5085 l

 cp gs /PC [[1.00 1.00 1.00] [0.00 0.00 0.00]] def

15.00 15.00 sc P2 [16 0 0 -8 291.00 276.00] PATmp PATsp ef gr PATusp gs col0 s gr 

% Polyline

n 4905 4140 m 5265 4140 l 5265 5085 l 4905 5085 l

 cp gs /PC [[1.00 1.00 1.00] [0.00 0.00 0.00]] def

15.00 15.00 sc P2 [16 0 0 -8 327.00 276.00] PATmp PATsp ef gr PATusp gs col0 s gr 

% Polyline

n 7965 4140 m 8370 4140 l 8370 5085 l 7965 5085 l

 cp gs /PC [[1.00 1.00 1.00] [0.00 0.00 0.00]] def

15.00 15.00 sc P6 [16 0 0 -16 531.00 276.00] PATmp PATsp ef gr PATusp gs col0 s gr 

/Times-Roman ff 180.00 scf sf

3510 5490 m

gs 1 -1 sc (gawk Main Program Address Space) col0 sh gr

/Times-Roman ff 180.00 scf sf

7290 5490 m

gs 1 -1 sc (Extension) col0 sh gr

/Courier-Bold ff 180.00 scf sf

3420 2880 m

gs 1 -1 sc (register_ext_func\({ "chdir", do_chdir, 1 }\);) col0 sh gr

% here ends figure;

pagefooter

showpage

%%Trailer

end

%EOF