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Diffstat (limited to 'Master/texmf-dist/tex/generic/pst-func')
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diff --git a/Master/texmf-dist/tex/generic/pst-func/pst-func.tex b/Master/texmf-dist/tex/generic/pst-func/pst-func.tex new file mode 100644 index 00000000000..122dfc0353a --- /dev/null +++ b/Master/texmf-dist/tex/generic/pst-func/pst-func.tex @@ -0,0 +1,217 @@ +%% +%% This is file `pst-func.tex', +%% +%% IMPORTANT NOTICE: +%% +%% Package `pst-func.tex' +%% +%% Herbert Voss <voss@pstricks.de> +%% +%% This program can be redistributed and/or modified under the terms +%% of the LaTeX Project Public License Distributed from CTAN archives +%% in directory macros/latex/base/lppl.txt. +%% +%% DESCRIPTION: +%% `pst-func' is a PSTricks package to plot special functions +%% +%% For a ChangeLog go the the end +%% +\csname PSTfuncLoaded\endcsname +\let\PSTfuncLoaded\endinput +% Requires PSTricks, pst-node +\ifx\PSTricksLoaded\endinput\else\input pstricks.tex\fi +\ifx\PSTnodesLoaded\endinput\else\input pst-plot.tex\fi +\ifx\PSTXKeyLoaded\endinput\else\input pst-xkey.tex \fi +% +\edef\PstAtCode{\the\catcode`\@} \catcode`\@=11\relax +% interface to the `xkeyval' package +\pst@addfams{pst-func} + +\def\fileversion{0.38} +\def\filedate{2004/11/08} +\message{`PST-func' v\fileversion, \filedate\space (Herbert Voss)} +% +\pstheader{pst-func.pro} +%\def\pst@funcdict{tx@FuncDict begin } +%\def\tx@saveCoor{\pst@3ddict saveCoor end } +%\def\tx@ConvertTo2D{\pst@3ddict ConvertTo2D end } + +\define@key[psset]{pst-func}{cosCoeff}{\edef\psk@cosCoeff{#1}} +\define@key[psset]{pst-func}{sinCoeff}{\edef\psk@sinCoeff{#1}} +\psset[pst-func]{cosCoeff=0,sinCoeff=1} % coeff=a0 a1 a2 a3 ... +% +\def\psFourier{\@ifnextchar[{\psFourier@i}{\psFourier@i[]}} +\def\psFourier@i[#1]#2#3{{% + \pst@killglue + \psset{#1} + \psplot{#2}{#3}{% + /type (cos) def + /Fourier { + aload length /n exch def + n -1 roll 2 div n 1 roll % a0/2 + n 1 sub -1 0 { + /i exch def + i x mul 180 mul 3.141592 div + type (sin) eq {sin}{cos} ifelse + mul n 1 roll + } for + n 1 sub -1 1 { pop add } for + } def + [\psk@cosCoeff] Fourier + /type (sin) def + [0 \psk@sinCoeff] Fourier add + }% +}\ignorespaces} +% +\define@key[psset]{pst-func}{coeff}{\edef\psk@coeff{#1}} +\define@key[psset]{pst-func}{Abbreviation}{\edef\psk@Deriviation{#1}}% compatibility +\define@key[psset]{pst-func}{Derivation}{\edef\psk@Derivation{#1}} +\newif\ifPst@markZeros% +\define@key[psset]{pst-func}{markZeros}[true]{\@nameuse{Pst@markZeros#1}} +\define@key[psset]{pst-func}{epsZero}{\edef\psk@epsZero{#1}} +\define@key[psset]{pst-func}{dZero}{\edef\psk@dZero{#1}} +\define@key[psset]{pst-func}{zeroLineTo}{\edef\psk@zeroLineTo{#1}} +\define@key[psset]{pst-func}{zeroLineColor}{\pst@getcolor{#1}\psk@zeroLineColor} +\newdimen\psk@zeroLineWidth +\define@key[psset]{pst-func}{zeroLineWidth}{\pssetlength\psk@zeroLineWidth{#1}} +\define@key[psset]{pst-func}{zeroLineStyle}{% + \@ifundefined{psls@#1}% + {\@pstrickserr{Line style `#1' not defined}\@eha}% + {\edef\psk@zeroLineStyle{#1}}% +} +\psset[pst-func]{% + coeff=0 1, % coeff=a0 a1 a2 a3 ... + Derivation=0, % 0 is the original function + markZeros=false,% no dots for the zeros + epsZero=0.1, % the distance between two zero points + dZero=0.1, % the distance of the x value for scanning the function + zeroLineTo=-1, % a line to the value of the lineTo's Derivation (-1= none) + zeroLineStyle=dashed,% + zeroLineWidth=0.5\pslinewidth,% + zeroLineColor=black}% +% +\def\psPolynomial{\pst@object{psPolynomial}} +\def\psPolynomial@i#1#2{{% + \begin@OpenObj + \@nameuse{beginplot@\psplotstyle}% + \gdef\psplot@init{}% + \@nameuse{testqp@\psplotstyle}% + \addto@pscode{% + tx@FuncDict begin + /coeff [ \psk@coeff ] def + /x0 #1 def /x1 #2 def + /dx x1 x0 sub \psk@plotpoints\space div def + /Derivation \psk@Derivation\space def + \ifPst@markZeros + gsave + \pst@number\psk@zeroLineWidth SLW + \pst@usecolor\psk@zeroLineColor + \psk@epsZero\space \psk@dZero\space FindZeros + pstZeros aload length { + /xZero exch def + xZero \pst@number\psxunit mul /xPixel exch def + \psk@dotsize + \@nameuse{psds@\psk@dotstyle}% + xPixel 0 Dot + \psk@zeroLineTo\space 0 ge { % line to function \psk@lineTo + xPixel 0 moveto + xZero coeff \psk@zeroLineTo\space FuncValue + \pst@number\psyunit mul xPixel exch L + \@nameuse{psls@\psk@zeroLineStyle} + } if + } repeat + grestore + \fi + /x x0 def + /xy { + x coeff Derivation FuncValue \pst@number\psyunit mul + x \pst@number\psxunit mul exch + } def + xy moveto + }% + \if@pst% lines and dots + \psPolynomial@ii% + \else% curves + \psPolynomial@iii% + \fi% + \end@OpenObj +}\ignorespaces} +% +\def\psPolynomial@ii{% + \addto@pscode{% + xy \@nameuse{beginqp@\psplotstyle} + \psk@plotpoints { + xy \@nameuse{doqp@\psplotstyle} + /x x dx add def + } repeat + xy \@nameuse{doqp@\psplotstyle} + end + }% + \@nameuse{endqp@\psplotstyle}% +} +\def\psPolynomial@iii{% curves + \addto@pscode{% + mark + /n 2 def + \psk@plotpoints { + xy + n 2 roll + /n n 2 add def + /x x dx add def + } repeat + /x x1 def + xy + n 2 roll + end + }% + \@nameuse{endplot@\psplotstyle}% +} +% +% Bessel 2004-06-08 +% Manuel Luque, Herbert Voss +% Look at the end for some more documentation about the algorithm +% +\define@key[psset]{pst-func}{constI}{\edef\psk@constI{#1}} +\define@key[psset]{pst-func}{constII}{\edef\psk@constII{#1}} +\psset{constI=1,constII=0} +% +\def\psBessel{\@ifnextchar[{\psBessel@i}{\psBessel@i[]}} +\def\psBessel@i[#1]#2#3#4{{%%% #2 = n + \pst@killglue + \psset{plotpoints=500}% + \psset{#1}% + \parametricplot{#3}{#4}{% + /J1 0 def + /k { 57.29577951 mul } def + /xBessel t k def + 0 0.1 180 { + /tB exch k def + /J1 J1 0.1 xBessel + tB sin mul tB #2\space mul sub cos mul add def + } for + t J1 180 div \psk@constI\space mul \psk@constII\space add + }% +}\ignorespaces} +% +\define@key[psset]{pst-func}{sigma}{\edef\psk@sigma{#1}} +\psset{sigma=0.5} +% +\def\psGauss{\@ifnextchar[{\psGauss@i}{\psGauss@i[]}} +\def\psGauss@i[#1]#2#3{{% + \pst@killglue% + \psset{plotpoints=200}% + \psset{#1}% + \pstVerb{% + /euler 2.718282 def + /Const 1 \psk@sigma\space div 6.2831 sqrt div def + }% + \psplot{#2}{#3}{% + euler x dup mul 2 div \psk@sigma\space dup mul div neg exp Const mul% + }% +}\ignorespaces} +% +\catcode`\@=\PstAtCode\relax +% +%% END: pst-abspos.tex +\endinput +% |