%% Generated from color_density.xp on Thu Jul  5 10:01:14 EDT 2007 by
%% ePiX-1.1.6
%%
%%   Cartesian bounding box: [-2,2] x [0,1.375]
%%   Actual size: 4 x 1.5in
%%   Figure offset: left by 0in, down by 0in
%%
\newrgbcolor{rgb_000000}{0 0 0}
\newrgbcolor{rgb_005454}{0 0.329412 0.329412}
\newrgbcolor{rgb_00a9a9}{0 0.662745 0.662745}
\newrgbcolor{rgb_00fefe}{0 0.996078 0.996078}
\newrgbcolor{rgb_00ffff}{0 1 1}
\newrgbcolor{rgb_540000}{0.329412 0 0}
\newrgbcolor{rgb_54ffff}{0.329412 1 1}
\newrgbcolor{rgb_a90000}{0.662745 0 0}
\newrgbcolor{rgb_a9ffff}{0.662745 1 1}
\newrgbcolor{rgb_fe0000}{0.996078 0 0}
\newrgbcolor{rgb_feffff}{0.996078 1 1}
\newrgbcolor{rgb_ff0000}{1 0 0}
\newrgbcolor{rgb_ff5454}{1 0.329412 0.329412}
\newrgbcolor{rgb_ffa9a9}{1 0.662745 0.662745}
\newrgbcolor{rgb_fffefe}{1 0.996078 0.996078}
\psset{unit=1in,linewidth=0.4pt}
\begin{pspicture}(4,1.5)(-0,-0)
\psset{fillcolor=rgb_feffff}%
\psline[fillstyle=solid]
  (-0.123,1.22727)(0.127,1.22727)(0.127,1.5)(-0.123,1.5)(-0.123,1.22727)
%%
\psline(-0.123,1.22727)(0.127,1.22727)(0.127,1.5)(-0.123,1.5)(-0.123,1.22727)
%%
\psset{fillcolor=rgb_a9ffff}%
\psline[fillstyle=solid]
  (0.21,1.22727)(0.46,1.22727)(0.46,1.5)(0.21,1.5)(0.21,1.22727)
%%
\psline(0.21,1.22727)(0.46,1.22727)(0.46,1.5)(0.21,1.5)(0.21,1.22727)
%%
\psset{fillcolor=rgb_54ffff}%
\psline[fillstyle=solid]
  (0.543,1.22727)(0.793,1.22727)(0.793,1.5)(0.543,1.5)(0.543,1.22727)
%%
\psline(0.543,1.22727)(0.793,1.22727)(0.793,1.5)(0.543,1.5)(0.543,1.22727)
%%
\psset{fillcolor=rgb_00fefe}%
\psline[fillstyle=solid]
  (0.876,1.22727)(1.126,1.22727)(1.126,1.5)(0.876,1.5)(0.876,1.22727)
%%
\psline(0.876,1.22727)(1.126,1.22727)(1.126,1.5)(0.876,1.5)(0.876,1.22727)
%%
\psset{fillcolor=rgb_00a9a9}%
\psline[fillstyle=solid]
  (1.209,1.22727)(1.459,1.22727)(1.459,1.5)(1.209,1.5)(1.209,1.22727)
%%
\psline(1.209,1.22727)(1.459,1.22727)(1.459,1.5)(1.209,1.5)(1.209,1.22727)
%%
\psset{fillcolor=rgb_005454}%
\psline[fillstyle=solid]
  (1.542,1.22727)(1.792,1.22727)(1.792,1.5)(1.542,1.5)(1.542,1.22727)
%%
\psline(1.542,1.22727)(1.792,1.22727)(1.792,1.5)(1.542,1.5)(1.542,1.22727)
%%
\psset{fillcolor=rgb_000000}%
\psline[fillstyle=solid]
  (1.875,1.22727)(2.125,1.22727)(2.125,1.5)(1.875,1.5)(1.875,1.22727)
%%
\psline(1.875,1.22727)(2.125,1.22727)(2.125,1.5)(1.875,1.5)(1.875,1.22727)
%%
\psset{fillcolor=rgb_540000}%
\psline[fillstyle=solid]
  (2.208,1.22727)(2.458,1.22727)(2.458,1.5)(2.208,1.5)(2.208,1.22727)
%%
\psline(2.208,1.22727)(2.458,1.22727)(2.458,1.5)(2.208,1.5)(2.208,1.22727)
%%
\psset{fillcolor=rgb_a90000}%
\psline[fillstyle=solid]
  (2.541,1.22727)(2.791,1.22727)(2.791,1.5)(2.541,1.5)(2.541,1.22727)
%%
\psline(2.541,1.22727)(2.791,1.22727)(2.791,1.5)(2.541,1.5)(2.541,1.22727)
%%
\psset{fillcolor=rgb_fe0000}%
\psline[fillstyle=solid]
  (2.874,1.22727)(3.124,1.22727)(3.124,1.5)(2.874,1.5)(2.874,1.22727)
%%
\psline(2.874,1.22727)(3.124,1.22727)(3.124,1.5)(2.874,1.5)(2.874,1.22727)
%%
\psset{fillcolor=rgb_ff5454}%
\psline[fillstyle=solid]
  (3.207,1.22727)(3.457,1.22727)(3.457,1.5)(3.207,1.5)(3.207,1.22727)
%%
\psline(3.207,1.22727)(3.457,1.22727)(3.457,1.5)(3.207,1.5)(3.207,1.22727)
%%
\psset{fillcolor=rgb_ffa9a9}%
\psline[fillstyle=solid]
  (3.54,1.22727)(3.79,1.22727)(3.79,1.5)(3.54,1.5)(3.54,1.22727)
%%
\psline(3.54,1.22727)(3.79,1.22727)(3.79,1.5)(3.54,1.5)(3.54,1.22727)
%%
\psset{fillcolor=rgb_fffefe}%
\psline[fillstyle=solid]
  (3.873,1.22727)(4.123,1.22727)(4.123,1.5)(3.873,1.5)(3.873,1.22727)
%%
\psline(3.873,1.22727)(4.123,1.22727)(4.123,1.5)(3.873,1.5)(3.873,1.22727)
%%
\psline(0,0)(4,0)
%%
\rput(0,0){\makebox(0,0){{$\rule{0.5pt}{4pt}$}}}
\rput(1,0){\makebox(0,0){{$\rule{0.5pt}{4pt}$}}}
\rput(2,0){\makebox(0,0){{$\rule{0.5pt}{4pt}$}}}
\rput(3,0){\makebox(0,0){{$\rule{0.5pt}{4pt}$}}}
\rput(4,0){\makebox(0,0){{$\rule{0.5pt}{4pt}$}}}
\psline(2,0)(2,1.09091)
%%
\rput(2,0){\makebox(0,0){{$\rule{4pt}{0.5pt}$}}}
\rput(2,1.09091){\makebox(0,0){{$\rule{4pt}{0.5pt}$}}}
\rput(0,-0.055348){\makebox(0,0)[t]{{$-2$}}}
\rput(1,-0.055348){\makebox(0,0)[t]{{$-1$}}}
\rput(2,-0.055348){\makebox(0,0)[t]{{$\phantom{-}0$}}}
\rput(3,-0.055348){\makebox(0,0)[t]{{$\phantom{-}1$}}}
\rput(4,-0.055348){\makebox(0,0)[t]{{$\phantom{-}2$}}}
\psset{linecolor=rgb_00ffff}%
\psline(0,1.09091)(1,1.09091)
%%
\psline(1,1.09091)(2,0)
%%
\psline(2,0)(3,0)
%%
\psline(3,0)(4,1.09091)
%%
\psset{linewidth=0.8pt}%
\psset{linecolor=rgb_ff0000}%
\psline
  (0,1.09091)(1,0)
%%
\psline(1,0)(2,0)
%%
\psline(2,0)(3,1.09091)
%%
\psline(3,1.09091)(4,1.09091)
%%
\end{pspicture}