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Diffstat (limited to 'Master/texmf-dist/doc/generic/pgf/text-en/pgfmanual-en-base-paths.tex')
| -rw-r--r-- | Master/texmf-dist/doc/generic/pgf/text-en/pgfmanual-en-base-paths.tex | 45 |
1 files changed, 35 insertions, 10 deletions
diff --git a/Master/texmf-dist/doc/generic/pgf/text-en/pgfmanual-en-base-paths.tex b/Master/texmf-dist/doc/generic/pgf/text-en/pgfmanual-en-base-paths.tex index 4117a63eff7..15ba36946b9 100644 --- a/Master/texmf-dist/doc/generic/pgf/text-en/pgfmanual-en-base-paths.tex +++ b/Master/texmf-dist/doc/generic/pgf/text-en/pgfmanual-en-base-paths.tex @@ -1,8 +1,11 @@ -% Copyright 2003 by Till Tantau <tantau@cs.tu-berlin.de>. +% Copyright 2006 by Till Tantau % -% This program can be redistributed and/or modified under the terms -% of the LaTeX Project Public License Distributed from CTAN -% archives in directory macros/latex/base/lppl.txt. +% This file may be distributed and/or modified +% +% 1. under the LaTeX Project Public License and/or +% 2. under the GNU Free Documentation License. +% +% See the file doc/generic/pgf/licenses/LICENSE for more details. \section{Constructing Paths} @@ -202,7 +205,7 @@ In the following, the commands for adding (parts of) (transformed) circles to a path are described. \begin{command}{\pgfpatharc\marg{start angle}\marg{end - angle}\marg{radius}} + angle}{\ttfamily\char`\{}\meta{radius}\opt{|/|\meta{y-radius}}{\ttfamily\char`\}}} This command appends a part of a circle (or an ellipse) to the current path. Imaging the curve between \meta{start angle} and \meta{end angle} on a circle of radius \meta{radius} (if $\meta{start angle} @@ -228,11 +231,9 @@ circles to a path are described. circle. The ``nearly'' refers to the fact that the circle will not be closed. You can close it using |\pgfpathclose|. - The \meta{radius} need not always be a single \TeX\ - dimension. Instead, it can also contain a slash, in which case it - must consist of two dimensions separated by this slash. In this - case the first dimension is the $x$-radius and the second the - $y$-radius of the ellipse from which the curve is taken: + If the optional \meta{y-radius} is given, the \meta{radius} is the + $x$-radius and the \meta{y-radius} the $y$-radius of the ellipse + from which the curve is taken: \begin{codeexample}[] \begin{tikzpicture} @@ -263,6 +264,30 @@ circles to a path are described. are applied, the bounding box will be tight. \end{command} +\begin{command}{\pgfpatharcaxes\marg{start angle}\marg{end + angle}\marg{first axis}\marg{second axis}} + This command is similar to |\pgfpatharc|. The main difference is how + the ellipse or circle is specified from which the arc is taken. The + two parameters \meta{first axis} and \meta{second axis} are the + $0^\circ$-axis and the $90^\circ$-axis of the ellipse from which the + path is taken. Thus, |\pgfpatharc{0}{90}{1cm/2cm}| has the same effect + as +\begin{verbatim} +\pgfpatharcaxes{0}{90}{\pgfpoint{1cm}{0cm}}{\pgfpoint{0cm}{2cm}} +\end{verbatim} +\begin{codeexample}[] +\begin{tikzpicture} + \draw[help lines] (0,0) grid (3,2); + \draw (0,0) -- (2cm,5mm) (0,0) -- (0cm,1cm); + + \pgfpathmoveto{\pgfpoint{2cm}{5mm}} + \pgfpatharcaxes{0}{90}{\pgfpoint{2cm}{5mm}}{\pgfpoint{0cm}{1cm}} + \pgfusepath{draw} +\end{tikzpicture} +\end{codeexample} +\end{command} + + \begin{command}{\pgfpathellipse\marg{center}\marg{first axis}\marg{second axis}} The effect of this command is to append an ellipse to the current |