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Can somebody help me with creating two plots -- a Helix and an Astroidal Sphere -- in LaTeX? The attached pictures are screenshots from Mathematica and show the desired results.

Helix

Astroidal Sphere

Bosanka
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  • Hi Reina Welcome to TeX.SX! Please help us to help you and add a minimal working example (MWE) that illustrates your problem. It will be much easier for us to reproduce your situation and find out what the issue is when we see compilable code, starting with \documentclass{...} and ending with \end{document}. – Aradnix Sep 04 '14 at 20:31
  • I'm not sure about what you want to do in LaTeX. Do yo need to insert those two pictures inside a document, or are you trying to generate them inside LaTeX instead of Mathematica? – Aradnix Sep 04 '14 at 20:33
  • I have so many packages in my document, so it's not a problem. I want to draw a picture in Latex, and all I have is this parametric equations: x(u,v)=[ 1.2+0.5*Cos(v)]Cos(u) , y(u,v)=[1.2+0.5Cos(v)]Sin(u) , z(u,v)=0.5*Sin(v)+ u/pi where is: 0<u<4pi and 0<v<2pi – Bosanka Sep 04 '14 at 20:41
  • If you speak Spanish and feel more comfortable asking in Spanish, you can subscribe in the mail list of the CervanTeX and ask there also. There is not much activity as here, but it can help yourself for future reference.

    Regarding your question, I don't know how convenient is redo your figures into LaTeX, but if you want to try, Tikz is the package you should use. One of its many libraries is suitable to draw figures like these.

     – Aradnix Sep 04 '14 at 20:47
  • Please check this answer related with yours, I hope you find it useful.

    Since I am still a newbie in Tikz I can't help you so much.

     – Aradnix Sep 04 '14 at 20:49
  • I'm from Bosnia, I don't speak Spanish..I don't need all, just how to write this equations in Latex.. But nevermind thanks for try to help me ;) – Bosanka Sep 04 '14 at 21:01
  • Sorry, I made a bad inference from your nickname. And my notions of Bosnian (aka Serbo-Croatian) are worse than my English, so there will not help. – Aradnix Sep 04 '14 at 21:08

2 Answers2

5

Run with xelatex (takes some time) or latex->dvips->ps2pdf:

\documentclass{article}
\usepackage{pst-solides3d}
\begin{document}

\psset{unit=0.75}
\begin{pspicture}(-3,-4)(3,6)
\psset{viewpoint=20 70 10 rtp2xyz,Decran=20,lightsrc=viewpoint}
% Parametric Surfaces
\defFunction[algebraic]{helix}(u,v)
 {(1.2+0.5*cos(v))*cos(u)}
 {(1.2+0.5*cos(v))*sin(u)}
 {0.5*sin(v)+u/Pi}
\psSolid[object=surfaceparametree,linewidth=0.5\pslinewidth,
 base=-7 6.5 0 TwoPi,hue=0 1,function=helix,ngrid=30 0.4]%
\gridIIID[Zmin=-3,Zmax=3](-2,2)(-2,2)
\end{pspicture}

\psset{unit=3cm}
\begin{pspicture}(-2,-2)(2,2)
\psset{viewpoint=20 70 10 rtp2xyz,Decran=20,lightsrc=viewpoint}
% Parametric Surfaces
\defFunction[algebraic]{helix}(u,v)
 {(cos(v)*cos(u))^3}
 {(cos(v)*sin(u))^3}
 {sin(v)^3}
\psSolid[object=surfaceparametree,linewidth=0.5\pslinewidth,
 base=0 Pi 0 TwoPi,fillcolor=red,function=helix,ngrid=20 40]%
\gridIIID[Zmin=-1,Zmax=1,showAxes=false](-1,1)(-1,1)
\end{pspicture}

\end{document}

enter image description here

enter image description here

1

Here is my version:

\documentclass[border=10pt]{standalone}
\usepackage[pdftex]{graphicx}
\usepackage{pgfplots}
\usepgfplotslibrary{colormaps}


\begin{document}
\begin{tikzpicture}[yscale=2, xscale=1]
  \begin{axis}[axis line style={draw=none}, 
      view={170}{-20},
      grid=major,
      xmin=0,xmax=2,
      ymin=0,ymax=2,
      zmin=0,zmax=4,
      enlargelimits=upper,
      xtick=\empty,
      ytick=\empty,
      ztick=\empty,
      %colormap/bone,
      trig format plots=rad,
      clip=false
    ]
    \addplot3 [ surf, domain=0:12.566, domain y=0:6.28,
      samples=70, samples y=70,
      variable=\u, variable y=\v,
    point meta=u*v, opacity=0.4 ]
     ({(1.2+0.5*cos(v))*cos(u)},
     {(1.2+0.5*cos(v))*sin(u)},
     {0.5*sin(v)+u/(3.0)});


  \end{axis}
\end{tikzpicture}
\end{document}

And here the picture helicoida

Herman Jaramillo
  • 2,344