1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
|
%%
%% A DANTE-Edition example
%%
%% Example 36-00-102 on page 811.
%%
%% Copyright (C) 2011 Herbert Voss
%%
%% It may be distributed and/or modified under the conditions
%% of the LaTeX Project Public License, either version 1.3
%% of this license or (at your option) any later version.
%%
%% See http://www.latex-project.org/lppl.txt for details.
%%
%%
%% ====
% Show page(s) 1
%%
\documentclass[]{article}
\pagestyle{empty}
\setlength\textwidth{201.70511pt}
\setlength\parindent{0pt}
\usepackage{pst-solides3d}
\begin{document}
\psset{viewpoint=50 20 10 rtp2xyz,Decran=50}
\psset{unit=0.75}
\begin{pspicture}(-5,-5)(5,5)
\psSolid[object=sphere,r=4,action=draw*,ngrid=9 9,resolution=720]%
\defFunction[algebraic]{helicespherique}(t)%
{4*cos(10*t)*cos(t)}%
{4*sin(10*t)*cos(t)}%
{4*sin(t)}
\psSolid[object=courbe,linecolor=blue,
resolution=720,range=pi -2 div pi 2 div,
function=helicespherique,r=0.05]
%\gridIIID[Zmin=-4,Zmax=4](-4,4)(-4,4)
\end{pspicture}
\end{document}
|