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%% $Id: pst-news15.tex 163 2015-07-26 07:20:23Z herbert $
\documentclass[11pt,english,BCOR10mm,DIV12,bibliography=totoc,parskip=false,smallheadings
headexclude,footexclude,oneside]{pst-doc}
\listfiles
\let\Lfile\LFile
\usepackage[utf8]{inputenc}
\usepackage{pst-node}
\let\pstnodeFV\fileversion
\let\pstnodeFD\filedate
\usepackage{pst-solides3d}
\usepackage{xkvview}
\renewcommand\bgImage{\psscalebox{15}{\color{blue!20}\the\year}}
\def\textat{\char064}
\lstset{explpreset={pos=l,width=-99pt,overhang=0pt,hsep=\columnsep,vsep=\bigskipamount,rframe={}},
escapechar=?}
\begin{document}
%\psset{PstDebug=1}
\title{\texttt{News -- \the\year}\\ \Large new macros and bugfixes for the
basic package \nxLFile{pstricks}}
\author{Herbert Voß}
\date{\today}
\maketitle
\clearpage
\tableofcontents
\clearpage
\part{\texttt{pstricks} -- package}
%--------------------------------------------------------------------------------------
%\section{\texttt{pstricks.sty}}
%--------------------------------------------------------------------------------------
%--------------------------------------------------------------------------------------
\section{\texttt{pstricks.tex} (\pstricksFV -- \pstricksFD)}
%--------------------------------------------------------------------------------------
\subsection{PostScript code}
Additionally to the macro \Lcs{pstVerb} there are now the keywords
\Lkeyword{precode} and \Lkeyword{postscode} which can be used by other
packages to paste PostScript code before and after the macros.
\begin{LTXexample}[pos=t]
\psset{viewpoint=40 35 10 rtp2xyz,Decran=40,lightsrc=viewpoint,unit=0.5}
\begin{pspicture}(-6,-6)(6,6)
\defFunction{cercle1}(t)
{4 t cos mul 2 sub rZ cos mul 4 t sin mul rZ sin mul add} %
{4 t cos mul 2 sub rZ sin mul neg 4 t sin mul rZ cos mul add}%
{4 t sin mul}%
\psforeach{\iA}{0,20,..,360}{%
\psSolid[object=courbe,
precode=/rZ \iA\space def,
r=0,range=0 360,resolution=360,function=cercle1]}
\end{pspicture}
\end{LTXexample}
\subsection{Background color}
There is now the optional argument \Lkeyword{bgcolor} (backgound color),
which is only valid for the background
of the environment \Lenv{pspicture} with its defined coordinates.
Internally it uses the macro \Lcs{psframe*}:
\begin{LTXexample}[pos=t]
\begin{pspicture*}[bgcolor=black!20](-12,-5)(-2,5)
\psset{viewpoint=6 -50 0 rtp2xyz,Decran=4,lightsrc=viewpoint}
\defFunction[algebraic]{torus}(u,v)
{2*(1+ 0.5*cos(u))*cos(v)}% x=f(u,v)
{2*(1+ 0.5*cos(u))*sin(v)}% y=f(u,v)
{2*0.5*sin(u)}% z=f(u)
\psSolid[object=surfaceparametree,
precode=/n1 48 def /n2 90 def /n1n2 n1 n2 mul 2 mul 1 sub def /iS 0 def,
base=0 2 pi mul 0 pi 1.5 mul ,
fcol=0 2 n1 2 sub {/i exch def
i n2 mul 2 i n2 mul n2 add 1 sub {(Black)} for} for
1 2 n1 1 sub {/i exch def i n2 mul 1 add 2 i n2 mul n2 add 1 sub {(Black)} for} for,
fillcolor=white,incolor=yellow!50,
function=torus,
linewidth=0.5\pslinewidth,unit=5,ngrid=n1 n2]
\end{pspicture*}
\end{LTXexample}
\clearpage
\nocite{*}
\bibliographystyle{plain}
\bibliography{PSTricks}
\printindex
\end{document}
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