\documentclass{article} \usepackage{pstricks-add,pst-plot} \usepackage[a4paper]{geometry} \pagestyle{empty} \begin{document} \psset{ %linestyle=none, dimen=inner, linewidth=0pt} \begin{pspicture}(-9,-9)(9,9) \psframe(-5,-5)(5,5)% \begin{psclip}{\pspolygon[linewidth=4pt](4;90)(2;126)(4;162)(2;198)(4;234)(2;270)(4;306)(2;342)(4;18)(2;54)} \multido{\iA=0+9}{40}{% \rput{\iA}(0,0){ \pscustom[fillstyle=solid,fillcolor=black]{% \psparametricplot[algebraic]{-9}{0}{0.5*t*sin(0.2*t)|0.5*t*cos(0.2*t)} \psparametricplot[algebraic]{0}{-9}{0.525*t*sin(0.2*t)|0.525*t*cos(0.2*t)} }}} \end{psclip} \end{pspicture} \newpage \begin{pspicture}(-9,-9)(9,9) \psframe(-5,-5)(5,5)% \begin{psclip}{\pspolygon[linewidth=4pt](4;90)(2;126)(4;162)(2;198)(4;234)(2;270)(4;306)(2;342)(4;18)(2;54)} \multido{\iA=0+9}{40}{% \rput{\iA}(0,0){ \pscustom[fillstyle=solid,fillcolor=black]{% \psparametricplot[algebraic]{0}{-9}{0.525*t*sin(0.2*t)|-0.525*t*cos(0.2*t)} \psparametricplot[algebraic]{-9}{0}{0.5*t*sin(0.2*t)|-0.5*t*cos(0.2*t)} }}} \end{psclip} \end{pspicture} \end{document}