+++ /dev/null
-\documentclass{article}
-\usepackage{pst-anamorphosis-add,pst-plot}
-\usepackage[a4paper]{geometry}
-\makeatletter
-\def\psparametricplotA{\pst@object{parametricplotA}}% hv 2008-11-22
-\def\parametricplotA{\pst@object{parametricplotA}}
-\def\parametricplotA@i#1#2{\@ifnextchar[{\parametricplotA@x{#1}{#2}}{\parametricplotA@x{#1}{#2}[]}}
-\def\parametricplotA@x#1#2[#3]{\@ifnextchar[{\parametricplotA@xi{#1}{#2}[#3]}{\parametricplotA@xi{#1}{#2}[#3][]}}
-\def\parametricplotA@xi#1#2[#3][#4]#5{%
- \pst@killglue%
- \begingroup%
- \use@par%
- \@nameuse{beginplot@\psplotstyle}%
- \addto@pscode{%
- \tx@optionsanamorphosis
- \tx@optionsanamorphosisAdd
- #3 %prefix PS code
- \psplot@init
- /t #1 def
- /t1 #2 def
- /dt t1 t sub \psk@plotpoints div def
- /F@pstplot \ifPst@algebraic (#5)
- \ifx\psk@PlotDerivative\@none\else
- \psk@PlotDerivative\space { (t) tx@Derive begin Derive end } repeat
- \fi\space
- tx@AlgToPs begin AlgToPs end cvx
- \else { #5 } \fi def
- \ifPst@VarStep
- /StillZero 0 def /LastNonZeroStep dt def
- /F2@pstplot tx@Derive begin (#5) (t) Derive (t) Derive end
- \ifx\psk@PlotDerivative\@none\else
- \psk@PlotDerivative\space { (t) tx@Derive begin Derive end } repeat
- \fi\space
- tx@AlgToPs begin AlgToPs end cvx def
- %% computation of the tolerance defined by plotpoints
- /epsilon12 \ifx\psk@VarStepEpsilon\@default
- tx@Derive begin F2@pstplot end Pyth
- dt 3 exp abs mul
- \else\psk@VarStepEpsilon\space 12 mul \fi def
- /ComputeStep {
- dup 1e-4 lt
- { pop StillZero 2 ge { LastNonZeroStep 2 mul } { LastNonZeroStep } ifelse /StillZero StillZero 1 add def }
- { epsilon12 exch div 1 3 div exp /StillZero 0 def }
- ifelse } bind def
- \fi
- /xy {
- \ifPst@algebraic F@pstplot \else #5 \fi
- \pst@number\psyunit mul exch
- \pst@number\psxunit mul exch
- tx@anamorphosisPathDict begin Anamorphose end
- } def
- }%
- \gdef\psplot@init{}%
- \@pstfalse
- \@nameuse{testqp@\psplotstyle}%
- \if@pst\parametricplotA@ii{#4}\else\parametricplotA@iii{#4}\fi
- \endgroup%
- \ignorespaces}
-%
-\def\parametricplotA@ii#1{% para is the post code
- \ifPst@VarStep%
- \addto@pscode{%
- mark xy \@nameuse{beginqp@\psplotstyle}
- { F2@pstplot Pyth ComputeStep
- t 2 copy add dup t1 gt {pop t1} if /t exch def F2@pstplot Pyth ComputeStep
- /t 3 -1 roll def 2 copy gt { exch } if pop
- /t t 3 -1 roll add dup t1 gt {pop t1} if def
- xy \@nameuse{doqp@\psplotstyle}
- t t1 eq { exit } if } loop}%
- \else\pst@killglue%
- \addto@pscode{%
- /ps@Exit false def
- xy \@nameuse{beginqp@\psplotstyle}
- \psk@plotpoints 1 sub {
- /t t dt add def
- xy \@nameuse{doqp@\psplotstyle}
- ps@Exit { exit } if
- } repeat
- ps@Exit not {
- /t t1 def
- xy \@nameuse{doqp@\psplotstyle}
- } if
- }%
- \fi%
- \addto@pscode{ #1 }%
- \@nameuse{endqp@\psplotstyle}}
-%
-\def\parametricplotA@iii#1{%
- \ifPst@VarStep%
- \addto@pscode{%
- /n 2 def
- mark
- { xy n 2 roll F2@pstplot Pyth
- ComputeStep t 2 copy add dup t1 gt {pop t1} if
- /t exch def F2@pstplot Pyth ComputeStep
- /t 3 -1 roll def 2 copy gt { exch } if pop
- /t t 3 -1 roll dup /LastNonZeroStep exch def add dup t1 gt {pop t1} if def /n n 2 add def
- t t1 eq { exit } if } loop
- xy n 2 roll}%
- \else\pst@killglue%
- \addto@pscode{
- mark
- /n 2 def
- \psk@plotpoints {
- xy
- n 2 roll
- /n n 2 add def
- /t t dt add def
- } repeat
- /t t1 def
- xy
- n 2 roll}%
- \fi%
- \addto@pscode{ #1 }%
- \@nameuse{endplot@\psplotstyle}}
-%
-\makeatother
-\pagestyle{empty}
-\begin{document}
-
-\begin{center}
-\begin{pspicture}(-6,-6)(6,6)
-\pscircle[doubleline=true]{3}
-\psset{type=conical}
-\pscircle[linecolor=blue](0,0){1}
-\pscircleA[linecolor=blue](0,0){1}
-\pscircle[linecolor=blue](0,0){2}
-\pscircleA[linecolor=blue](0,0){2}
-\parametricplotA[plotpoints=3600,linecolor=red,linewidth=1mm]{0}{360}{%
- /Radius 1.5 0.5 t 8 mul sin mul add def
- Radius t cos mul
- Radius t sin mul
- }
-\parametricplot[plotpoints=3600,linecolor=red,linewidth=1mm]{0}{360}{%
- /Radius 1.5 0.5 t 8 mul sin mul add def
- Radius t cos mul
- Radius t sin mul
- }
-\multido{\n=0.5+0.5,\N=0.5+0.5}{4}{%
- \pnode(! \n\space -2){A}
- \pnode(! \n\space 2){B}
- \psline(A)(B)
- \pslineA(A)(B)
- \pnode(!-2 \N){A}
- \pnode(!2 \N){B}
- \pslineA(A)(B)
- \psline(A)(B)
- }
-\multido{\n=-2.0+0.5,\N=-2.0+0.5}{4}{%
- \pnode(! \n\space -2){A}
- \pnode(! \n\space 2){B}
- \psline(A)(B)
- \pslineA(A)(B)
- \pnode(!-2 \N){A}
- \pnode(!2 \N){B}
- \pslineA(A)(B)
- \psline(A)(B)
- }
-\psline(-2,0)(2,0)
-\psline(0,-2)(0,2)
-\pslineA(0,-2)(0,-0.5)
-\pslineA(0,2)(0,0.5)
-\pslineA(-2,0)(-0.5,0)
-\pslineA(2,0)(0.5,0)
-\psdot[dotstyle=x,dotsize=.2](0,0)
-\end{pspicture}
-\end{center}
-
-\end{document}
\ No newline at end of file
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