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\documentclass[12pt]{article}
\usepackage[T1]{fontenc}
\usepackage[latin1]{inputenc}
%\usepackage{geometry}
\usepackage{url,calc}
\usepackage{pstricks}
\usepackage{pst-plot}
\SpecialCoor
%\usepackage[ps2pdf,colorlinks,linktocpage]{hyperref}
\usepackage[vtex,colorlinks,linktocpage]{hyperref}
\def\UrlFont{\small\ttfamily}
\makeatletter
\def\verbatim@font{\small\normalfont\ttfamily}
\makeatother
%\usepackage{color}
\definecolor{hellgelb}{rgb}{1,1,0.8}
\definecolor{colKeys}{rgb}{0,0,1}
\definecolor{colIdentifier}{rgb}{0,0,0}
\definecolor{colComments}{rgb}{1,0,0}
\definecolor{colString}{rgb}{0,0.5,0}
%
\usepackage{listings}
\lstset{%
language=[LaTeX]TEX,%
float=hbp,%
basicstyle=\ttfamily\small, %
identifierstyle=\color{colIdentifier}, %
keywordstyle=\color{colKeys}, %
stringstyle=\color{colString}, %
commentstyle=\color{colComments}, %
columns=flexible, %
tabsize=4, %
frame=single, %
extendedchars=true, %
showspaces=false, %
showstringspaces=false, %
numbers=left, %
numberstyle=\tiny, %
breaklines=true, %
% backgroundcolor=\color{hellgelb}, %
breakautoindent=true, %
captionpos=b,%
xleftmargin=0pt%
}
%\parindent=0pt
\newcommand\verbI[1]{{\small\texttt{#1}}}
\newcommand\CMD[1]{{\texttt{\textbackslash#1}}}
%
\psset{subgriddiv=0,griddots=5,gridlabels=7pt}
%
\DeclareRobustCommand\cs[1]{\texttt{\char`\\#1}}
\def\PS{PostScript}
%
\begin{document}
\title{\texttt{pstricks -- patch 15}\\new macros and bugfixes for \texttt{pstricks}}
\author{Herbert Voß\thanks{%
\url{Herbert.Voss@perce.de}} \and Rolf Niepraschk\thanks{\url{Rolf.Niepraschk@ptb.de}}}
\date{2004/05/12}
\maketitle
\begin{abstract}
It is long time ago since \verb+pstricks.tex patch 14+ came out. The new version
\verb+patch 15+ fixes some bugs and provides three new elliptic macros, which were
already present in the old beta version of \verb+PSTricks+.
There is also a new \verb+pstricks.sty+, which makes the \verb+\pstcol+ package
obsolete. It uses the new color package \verb+xcolor+, which provides a much more
powerful color management than \verb+color.sty+ does. The \verb+pstricks.sty+ is
a real \LaTeX{} package, it makes no sense for \TeX{} users. Nevertheless, using
of \verb+pstcol+ or package \verb+color+ is still possible.
Timothy Van Zandt was the one, who creates \verb+PSTricks+, but Denis Girou was
the one who makes it run over many years. Needless to say, how important his work is
for \verb+PSTricks+. Since more than nine month we are unable to get in touch with
Denis, which is the reason why this update of \verb+PSTricks+ comes without any
comments from Denis.
\end{abstract}
\clearpage
\tableofcontents
\clearpage
\section{New fill style \texttt{eofill}}
\PS\ has a special fillstyle, called \verb|eofill|, which is now available
with the option
\verb|fillstyle=eofill|. The following two images show the difference,
the first one is filled with
\verb|fillstyle=solid| and the second one with the new option \verb|fillstyle=eofill|.
\begin{minipage}{5.5cm}
\begin{pspicture}(5,2.5)
\pspolygon[unit=0.5cm,%
fillstyle=solid,%
fillcolor=yellow](7,3)(0,0)(1,3)
(5,5)(10,3)(2,2)(7,5)(7,3)
\end{pspicture}
\end{minipage}\hfill%
\begin{minipage}{\linewidth-6cm}
\begin{lstlisting}
\begin{pspicture}(5,2.5)
\pspolygon[unit=0.5cm,%
fillstyle=solid,%
fillcolor=yellow](7,3)(0,0)(1,3)
(5,5)(10,3)(2,2)(7,5)(7,3)
\end{pspicture}
\end{lstlisting}
\end{minipage}
\begin{minipage}{5.5cm}
\begin{pspicture}(5,2.5)
\pspolygon[unit=0.5cm,%
fillstyle=eofill,%
fillcolor=yellow](7,3)(0,0)(1,3)%
(5,5)(10,3)(2,2)(7,5)(7,3)
\end{pspicture}
\end{minipage}\hfill%
\begin{minipage}{\linewidth-6cm}
\begin{lstlisting}
\begin{pspicture}(5,2.5)
\pspolygon[unit=0.5cm,%
fillstyle=eofill,%
fillcolor=yellow](7,3)(0,0)(1,3)%
(5,5)(10,3)(2,2)(7,5)(7,3)
\end{pspicture}
\end{lstlisting}
\end{minipage}
\section{Dashed lines}
By default a dash line can be set with the option \verb+dash=<black> <white>+,
e.g. \verb+dash=10pt 5pt+. This definition makes it impossible to define a
dashed/dotted line. \verb+pstricks-add+ redefines this option for a use with
four parameters \verb+dash=<black> <white> <black> <white>+,
where the last two can be omit. The following examples show different values for these
parameters:
\medskip
\begin{center}
\begin{minipage}{10.5cm}%
\psset{linestyle=dashed,dashadjust=false}
\noindent
\psline[dash=1 1](0,0)(10,0)\\
\psline[linewidth=1mm,dash=2 0.5](0,0)(10,0)\\
\psline[dash=1 0.2 0.05 0.2](0,0)(10,0)\\
\psline[dash=0.05 0.2 1 0.2](0,0)(10,0)\\
\psline[linewidth=1mm,dash=2 1 1 2](0,0)(10,0)\\
\psset{dashadjust=true}
\noindent
\psline[dash=1 1](0,0)(10,0)\\
\psline[linewidth=1mm,dash=2 0](0,0)(10,0)\\
\psline[dash=1 0.2 0.05 0.2](0,0)(10,0)\\
\psline[dash=0.05 0.2 1 0.2](0,0)(10,0)\\
\psline[linewidth=1mm,dash=2 1 1 2](0,0)(10,0)
\end{minipage}
\end{center}
\medskip
\begin{lstlisting}
{\psset{linestyle=dashed,dashadjust=false}
\psline[dash=1 1](0,0)(10,0)\\
\psline[linewidth=1mm,dash=2 0.5](0,0)(10,0)\\
\psline[dash=1 0.2 0.05 0.2](0,0)(10,0)\\
\psline[dash=0.05 0.2 1 0.2](0,0)(10,0)\\
\psline[linewidth=1mm,dash=2 1 1 2](0,0)(10,0)\\
\psset{dashadjust=true}
\psline[dash=1 1](0,0)(10,0)\\
\psline[linewidth=1mm,dash=2 0](0,0)(10,0)\\
\psline[dash=1 0.2 0.05 0.2](0,0)(10,0)\\
\psline[dash=0.05 0.2 1 0.2](0,0)(10,0)\\
\psline[linewidth=1mm,dash=2 1 1 2](0,0)(10,0)}
\end{lstlisting}
As seen in the above code, it is no problem to use dashed lines in the usual way
with two parameters.
\section{Ellipses}
\verbI{pstricks - patch 14} has only the following macro for drawing an ellipse:
{\small\begin{verbatim}
\psellipse[<option>](x,y)(a,b)
\psellipse*[<option>](x,y)(a,b)
\end{verbatim}}
\noindent whith \verbI{(x,y)} as the center and \verbI{(a,b)} as the two radians
(figure \ref{pstricks}).
\begin{figure}[htb]
\begin{minipage}{0.39\columnwidth}
\begin{pspicture}(0,-0.25)(5,3.25)
\psgrid
\psellipse[%
linewidth=0.2,%
linecolor=red](2.5,1.5)(2,1)
\psellipse*[%
linecolor=blue](2.5,1.5)(0.5,1.5)
\end{pspicture}%
\end{minipage}%
\hfill%
\begin{minipage}{0.59\columnwidth}
\begin{lstlisting}
\begin{pspicture}(0,-0.25)(5,3.25)
\psgrid
\psellipse[%
linewidth=0.2,%
linecolor=red](2.5,1.5)(2,1)
\psellipse*[%
linecolor=blue](2.5,1.5)(0.5,1.5)
\end{pspicture}%
\end{lstlisting}
\end{minipage}%
\caption{The \verbI{pstricks} macro \CMD{psellipse}}\label{pstricks}
\end{figure}
\subsection{Ellipse based on \texttt{pst-plot}}
With the \CMD{parametricplot} macro from \verbI{pst-plot} we can define a new macro for
drawing ellipses:
\begin{lstlisting}
% #1 options
% #2 a
% #3 b
% #4 start angle
% #5 end angle
\newcommand{\pstEllipse}[5][]{%
\psset{#1}
\parametricplot{#4}{#5}{#2\space t cos mul #3\space t sin mul}}
\end{lstlisting}
\noindent which has the syntax
{\small\begin{verbatim}
\pstEllipse[<options>]{a}{b}{start angle}{end angle}
\end{verbatim}}
This macro is not part of of \verb|pstricks.tex|, it is only defined for some demonstration.
\newcommand*{\pstEllipse}[5][]{%
\psset{#1}
\parametricplot{#4}{#5}{#2\space t cos mul #3\space t sin mul}%
}
\begin{figure}[htb]
\begin{minipage}{0.39\columnwidth}
\begin{pspicture}(-2.25,-1.75)(2.25,1.75)
\psgrid
\pstEllipse[%
linewidth=0.2,%
linecolor=red]{2}{1}{0}{360}
\pstEllipse[%
linewidth=0.1,%
arrows=|->,%
arrowsize=0.5,%
linecolor=blue]{1}{2}{-30}{250}
\end{pspicture}%
\end{minipage}%
\hfill%
\begin{minipage}{0.59\columnwidth}
\begin{lstlisting}
\begin{pspicture}(-2.25,-1.75)(2.25,1.75)
\psgrid
\pstEllipse[%
linewidth=0.2,%
linecolor=red]{2}{1}{0}{360}
\pstEllipse[%
linewidth=0.1,arrows=|->,%
arrowsize=0.5,%
linecolor=blue]{1}{2}{-30}{250}
\end{pspicture}%
\end{lstlisting}
\end{minipage}%
\caption{The macro \CMD{pstEllipse} which uses the \CMD{parametricplot} macro
from \verbI{pst-plot}}\label{parametric}
\end{figure}
As seen in figure \ref{parametric} it is no problem to draw arcs of an ellipse.
The center of these ellipses are by default $(0,0)$, with the \CMD{rput} macro
it is also not a problem to put the ellipse anywhere in the coordinate system with
any angle of rotating.
\subsubsection{Wedge of an ellipse}
To define a macro for a wedge of an ellipse (figure \ref{parametric-wedge}) is also easy with
the \verb+\pscustom+ macro. which uses the following code:
%
\newcommand*{\pstEllipseWedge}[5][]{%
\psset{#1}%
\pscustom{%
\parametricplot{#4}{#5}{#2\space t cos mul #3\space t sin mul}%
\psline(! #2\space #5\space cos mul #3\space #5\space sin mul)%
(0,0)%
(! #2\space #4\space cos mul #3\space #4\space sin mul)%
}%
}
%
\begin{lstlisting}
% #1 options
% #2 a
% #3 b
% #4 start angle
% #5 end angle
\newcommand{\pstEllipseWedge}[5][]{%
\psset{#1}
\pscustom{%
\parametricplot{#4}{#5}{#2\space t cos mul #3\space t sin mul}%
\psline(! #2\space #5\space cos mul #3\space #5\space sin mul)%
(0,0)%
(! #2\space #4\space cos mul #3\space #4\space sin mul)%
}%
}
\end{lstlisting}
This macro is also not part of of \verb|pstricks.tex|, it is only defined for some
demonstration.
\begin{figure}[htb]
\begin{minipage}{0.39\columnwidth}
\begin{pspicture}(-2.25,-1.75)(2.25,1.75)
\psgrid
\pstEllipseWedge[%
linewidth=0.05,linecolor=red,%
fillstyle=hlines,%
fillcolor=red]{2}{1}{0}{130}
\pstEllipseWedge[%
linewidth=0.1,%
linecolor=blue,%
fillstyle=vlines,%
fillcolor=blue]{1}{2}{-30}{190}
\end{pspicture}%
\end{minipage}%
\hfill%
\begin{minipage}{0.59\columnwidth}
\begin{lstlisting}
\begin{pspicture}(-2.25,-1.75)(2.25,1.75)
\psgrid
\pstEllipseWedge[%
linewidth=0.05,linecolor=red,%
fillstyle=hlines,%
fillcolor=red]{2}{1}{0}{130}
\pstEllipseWedge[%
linewidth=0.1,linecolor=blue,%
fillstyle=vlines,%
fillcolor=blue]{1}{2}{-30}{190}
\end{pspicture}%
\end{lstlisting}
\end{minipage}%
\caption{The macro \CMD{pstEllipseWedge} which uses the \CMD{parametricplot}
macro from \verbI{pst-plot}}\label{parametric-wedge}
\end{figure}
\subsection{New ellipse macros}
All macros defined in this package are original from Timothy Van Zandt and Denis Girou and
modified by several other authors. The available macros are
{\small\begin{verbatim}
\psellipticarc[<options>]
{<arrows>}(<center>)(a,b){start angle}{end angle}
\psellipticarcn[<options>]
{<arrows>}(<center>)(a,b){start angle}{end angle}
\psellipticwedge[<options>]
{<arrows>}(<center>)(a,b){start angle}{end angle}
\end{verbatim}}
\subsubsection{Arc of an ellipse}
Figure \ref{pst-ellipse-arc} shows different examples for this macro.
\begin{figure}[htb]
\begin{minipage}{0.39\columnwidth}
\begin{pspicture}(-2.25,-2.25)(2.25,2.25)
\psgrid
\psellipticarc[linewidth=0.1]{|->}(0,0)(1.5,1){0}{180}
\psellipticarc[linecolor=red](0,0)(0.5,1.5){30}{320}
\end{pspicture}
\end{minipage}%
\hfill%
\begin{minipage}{0.59\columnwidth}
\begin{lstlisting}
\begin{pspicture}(-2.25,-2.25)(2.25,2.25)
\psellipticarc[linewidth=0.1]{|->}(0,0)(1.5,1){0}{180}
\psellipticarc[linecolor=red](0,0)(0.5,1.5){30}{320}
\end{pspicture}
\end{lstlisting}
\end{minipage}%
\caption{The macro \CMD{psellipticarc}}\label{pst-ellipse-arc}
\end{figure}
\subsection{Arc of an ellipse with anti clockwise direction}
Figure \ref{pst-ellipse-arcN} shows different examples for this macro which is the same than the one figure \ref{{pst-ellipse-arc}} only drawn anti clockwise.
\begin{figure}[htb]
\begin{minipage}{0.39\columnwidth}
\begin{pspicture}(-2.25,-2.25)(2.25,2.25)
\psgrid
\psellipticarcn[linewidth=0.1]{|->}(0,0)(1.5,1){0}{180}
\psellipticarcn[linecolor=red](0,0)(0.5,1.5){30}{320}
\end{pspicture}
\end{minipage}%
\hfill%
\begin{minipage}{0.59\columnwidth}
\begin{lstlisting}
\begin{pspicture}(-2.25,-2.25)(2.25,2.25)
\psellipticarcn[linewidth=0.1]{|->}(0,0)(1.5,1){0}{180}
\psellipticarcn[linecolor=red](0,0)(0.5,1.5){30}{320}
\end{pspicture}
\end{lstlisting}
\end{minipage}%
\caption{The macro \CMD{psellipticarcn}}\label{pst-ellipse-arcN}
\end{figure}
\subsubsection{Wedge of an ellipse}
Figure \ref{pst-ellipse-wedge} shows different examples for this macro.
\begin{figure}[htb]
\begin{minipage}{0.39\columnwidth}
\begin{pspicture}(-2.25,-2.25)(2.25,2.25)
\psgrid
\psellipticwedge[%
fillstyle=vlines,%
linewidth=0.1](0,0)(1.5,1){0}{200}
\psellipticwedge[%
fillstyle=hlines,%
linecolor=red](0,0)(0.5,1.5){30}{220}
\end{pspicture}
\end{minipage}%
\hfill%
\begin{minipage}{0.59\columnwidth}
\begin{lstlisting}
\begin{pspicture}(-2.25,-2.25)(2.25,2.25)
\psgrid
\psellipticwedge[%
fillstyle=vlines,%
linewidth=0.1](0,0)(1.5,1){0}{200}
\psellipticwedge[%
fillstyle=hlines,%
linecolor=red](0,0)(0.5,1.5){30}{220}
\end{pspicture}
\end{lstlisting}
\end{minipage}%
\caption{The macro \CMD{psellipticwedge}}\label{pst-ellipse-wedge}
\end{figure}
\section{\texttt{pstricks.sty}}
In the past there were some problems with \verb+pstricks.tex+ and the package \verb+color.sty+.
\verb+pstcol.sty+ tried to get rid of them but not with success in any case. The
new package \verb+pstricks.sty+ loads first \verb+pstricks.tex+, does some modifcation
to \verb+pstricks+, loads \verb+xcolor.sty+ and some more modifications to the the code to
get \verb+pstricks+ and colors work in a right way. It also renames the \verb+\scalebox+
macro to \verb+\psscalebox+ to prevend clashes with the one from the package \verb+graphicx.sty+ which has the
same name but another syntax. If you want to use the macro from \verb+graphicx+, then load this
package as the last one.
\end{document}
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