...making Linux just a little more fun!
[ In reference to "Plotting the spirograph equations with 'gnuplot'" in LG#133 ]
Sonja Schmid [schmid.sonja at gmx.ch]
Dear Víctor Luaña,
I just saw how you drew these labels of the angles in Fig. 1 on page http://linuxgazette.net/133/luana.html . Could you tell me what gnuplot code you use to do so??
Thanks very much in advance!
Sonja
Victor Lua~na Cabal [victor at carbono.quimica.uniovi.es]
> From: Ben Okopnik <[email protected]> > ----- Forwarded message from Sonja Schmid <[email protected]> ----- > > From: Sonja Schmid <[email protected]> > To: [email protected] > Date: Thu, 30 Jul 2009 09:48:13 +0200 > Subject: [TAG] tkb: Talkback:133/luana.html > Reply-To: The Answer Gang <[email protected]> > Sender: [email protected] > > Dear Víctor Luaña, > > I just saw how you drew these labels of the angles in Fig. 1 on page > http://linuxgazette.net/133/luana.html . > Could you tell me what gnuplot code you use to do so?? > > Thanks very much in advance!
Sonja,
Where all the rest of figures in the article have been done with gnuplot, Fig 1 was produced with pstricks, a drawing package for the TeX/LaTeX typesetting software. Just in case you keep interested I reproduce below the code used. Noticed that it has not been optimized in any way: just some dirt and quick code to produce the illustration. Pstricks is an impressive tool for producing technical drawings but requires a careful planning. Check <http://tug.org/PSTricks/main.cgi/> for an extensive set of examples and documentation.
Let me know if I can be of further help.
Best regards, Víctor Luaña
Image code follows. Save the file as spiro1.tex and compile it with latex with the pstricks package installed:
\documentclass[a4paper,12pt]{article} \usepackage[dvipsnames]{pstricks} %\usepackage{xcolor} \usepackage{pst-plot} \usepackage{pst-node} \parindent=0pt \makeatletter \begin{document} \pagestyle{empty} %\large \psset{unit=1cm} \definecolor{gr00}{gray}{0.0} \definecolor{gr01}{gray}{0.1} \definecolor{gr02}{gray}{0.2} \definecolor{gr03}{gray}{0.3} \definecolor{gr04}{gray}{0.4} \definecolor{gr05}{gray}{0.5} \definecolor{gr06}{gray}{0.6} \definecolor{gr07}{gray}{0.7} \definecolor{gr08}{gray}{0.8} \definecolor{gr09}{gray}{0.9} \begin{pspicture}(-5,-5)(5,5) \begingroup %\psgrid[gridcolor=Peach% % ,subgridcolor=Apricot% % ,gridlabelcolor=Red% % ,subgriddiv=1% % ,griddots=10% % ,gridlabels=9pt](-5,-5)(5,5) \psset{arrowsize=4pt 4, arrowlength=2, arrowinset=0.4} \psset{dotscale=1.3} \SpecialCoor \begingroup \psset{linecolor=gr09} \parametricplot[plotstyle=line,plotpoints=201]{0}{720}% {t cos 3.5 mul t 3.5 mul cos 1.5 mul add % t sin 3.5 mul t 3.5 mul sin 1.5 mul sub} \endgroup \psdots(0,0) \pscircle(0,0){4.5} \begingroup \psset{linecolor=gr00} \psline[linestyle=dotted]{-}(0,0)(3.5,0) \pscircle(3.5,0){1} \psline[linewidth=2pt]{-}(3.5,0)(5,0) \psdots(4.5,0)(3.5,0)(5,0) \endgroup %%%\begingroup %%% \psset{linecolor=gr06} %%% \psline[linestyle=dotted]{-}(0,0)(3.5;10) %%% \pscircle(3.5;10){1} %%% \pswedge[fillstyle=solid,fillcolor=gr03](0,0){0.6}{0}{10} %%% \psline[linewidth=2pt]{-}(3.5;10)% %%% (!10 cos 3.5 mul 10 3.5 mul cos 1.5 mul add % %%% 10 sin 3.5 mul 10 3.5 mul sin 1.5 mul sub) %%%\endgroup \begingroup \psset{linecolor=gr00} %\psline[linestyle=dotted]{-}(0,0)(3.5;49) \psline[linestyle=dotted]{-}(0,0)(5.5;49) \pnode(3.5;49){Oprime} \pnode(!49 cos 3.5 mul 49 3.5 mul cos 1.5 mul add % 49 sin 3.5 mul 49 3.5 mul sin 1.5 mul sub){P} \pnode(4.5;0){Q} \pnode(4.5;49){S} \pnode(!49 cos 3.5 mul 49 3.5 mul cos 1.0 mul add % 49 sin 3.5 mul 49 3.5 mul sin 1.0 mul sub){T} %\pnode(!49 cos 3.5 mul 49 3.5 mul cos 0.5 mul add % % 49 sin 3.5 mul 49 3.5 mul sin 0.5 mul sub){W} \psdots(Oprime)(P)(Q)(S)(T) \uput[215](0,0){O} \uput[115](Oprime){O$^\prime$} \uput[135](P){P} \uput[50](Q){Q} \uput[90](S){S} \uput[115](T){T} \pscircle(Oprime){1} \pswedge[fillstyle=solid,fillcolor=gr03](0,0){0.6}{0}{49} \uput{17.5pt}[25](O){$\varphi$} \psline[linestyle=dotted]{-}(Oprime)% (!49 cos 3.5 mul 2.0 add 49 sin 3.5 mul) \pswedge[fillstyle=solid,fillcolor=gr03](Oprime){0.6}{0}{49} \uput{17.5pt}[25](Oprime){$\varphi$} \pswedge[fillstyle=solid,fillcolor=gr05](Oprime){0.4}{-171.5}{0} \uput{14pt}[-85.75](Oprime){$\beta$} \psline[linewidth=2pt]{-}(Oprime)(P) \parametricplot[plotstyle=line,plotpoints=51]{0}{49}% {t cos 3.5 mul t 3.5 mul cos 1.5 mul add % t sin 3.5 mul t 3.5 mul sin 1.5 mul sub} \endgroup \begingroup \psset{arrowsize=3pt 3, arrowlength=1.2, arrowinset=0.3} \psset{linecolor=Blue} \psline{|<->|}(0,-1.2)(4.5,-1.2) \uput[-90](2.25,-1.2){$R$} \psline{|<->|}(3.5,-2.2)(2.5,-2.2) \uput[-90](3.0,-2.2){$r$} \psline{|<->|}(3.5,-2.2)(5.0,-2.2) \uput[-90](4.25,-2.2){$p$} \endgroup \endgroup \end{pspicture} \normalsize \end{document}