From 2713ec666b0e53418a839b97c48e0a9234fe5c98 Mon Sep 17 00:00:00 2001 From: Norbert Preining Date: Tue, 11 Oct 2022 03:01:16 +0000 Subject: CTAN sync 202210110301 --- .../doc/tikz-ext-manual-en-library-paths.arcto.tex | 110 --------------------- 1 file changed, 110 deletions(-) delete mode 100644 graphics/pgf/contrib/tikz-ext/doc/tikz-ext-manual-en-library-paths.arcto.tex (limited to 'graphics/pgf/contrib/tikz-ext/doc/tikz-ext-manual-en-library-paths.arcto.tex') diff --git a/graphics/pgf/contrib/tikz-ext/doc/tikz-ext-manual-en-library-paths.arcto.tex b/graphics/pgf/contrib/tikz-ext/doc/tikz-ext-manual-en-library-paths.arcto.tex deleted file mode 100644 index 8ed660b3a3..0000000000 --- a/graphics/pgf/contrib/tikz-ext/doc/tikz-ext-manual-en-library-paths.arcto.tex +++ /dev/null @@ -1,110 +0,0 @@ -% !TeX root = tikz-ext-manual.tex -% !TeX spellcheck = en_US -% Copyright 2022 by Qrrbrbirlbel -% -% This file may be distributed and/or modified -% -% 1. under the LaTeX Project Public License and/or -% 2. under the GNU Free Documentation License. -% - -\section{Arc \emph{to} a point} -\label{library:paths.arcto} - -\begin{tikzlibrary}{ext.paths.arcto} - This library adds the new path operation |arc to| that specifies an arc \emph{to} a point~-- - without the user having to specify any angles. -\end{tikzlibrary} - -\begin{codeexample}[width=.5\linewidth,preamble=\usetikzlibrary{ext.paths.arcto}] -\begin{tikzpicture}[ultra thick,dot/.style={label={#1}}] -\coordinate[dot=below left:$a$] (a) at (0,0); -\coordinate[dot=above right:$b$] (b) at (2,3); -\begin{scope}[ - radius=3, - nodes={ - shape=circle, - fill=white, - fill opacity=.9, - text opacity=1, - inner sep=+0pt, - sloped, - allow upside down - }] -\draw[blue] (a) arc to[] - node[near start] {.25} node {.5} node[near end] {.75} (b); -\draw[red] (a) arc to[clockwise] - node[near start] {.25} node {.5} node[near end] {.75} (b); -\draw[blue!50] (a) arc to[large] - node[near start] {.25} node {.5} node[near end] {.75} (b); -\draw[red!50] (a) arc to[large, clockwise] - node[near start] {.25} node {.5} node[near end] {.75} (b); -\end{scope} - -\fill[radius=2pt] (a) circle[] (b) circle[]; -\end{tikzpicture} -\end{codeexample} - -\begin{pathoperation}{arc to}{\opt{\oarg{options}}\meta{coordinate or cycle}} -When this operation is used, the path gets extended by an arc that goes through -the current point and \meta{coordinate}. - -For two points there exist two circles or four arcs that go through or connect -these two points. Which one of these is constructed is determined by the following -options that can be used inside of \meta{options}. - -\begin{stylekey}{/tikz/arc to/clockwise} - This constructs an arc that goes clockwise. -\end{stylekey} - -\begin{stylekey}{/tikz/arc to/counter clockwise} - This constructs an arc that goes counter clockwise. - - This is the default. -\end{stylekey} - -\begin{stylekey}{/tikz/arc to/large} - This constructs an arc whose angle is larger than $180^\circ$. -\end{stylekey} - -\begin{stylekey}{/tikz/arc to/small} - This constructs an arc whose angle is smaller than $180^\circ$. -\end{stylekey} - -\begin{key}{/tikz/arc to/rotate=\meta{degree}} - Rotates the arc by \meta{degree}. - This is only noticeable when |x radius| and |y radius| are different. -\end{key} - -\begin{key}{/tikz/arc to/x radius=\meta{value}} - This forwards the \meta{value} to \referenceKeyandIndexO{x radius}. - Its \meta{value} is used for the radius of the arc. -\end{key} - -\begin{key}{/tikz/arc to/y radius=\meta{value}} - This forwards the \meta{value} to \referenceKeyandIndexO{y radius}. - Its \meta{value} is used for the radius of the arc. -\end{key} - -\begin{key}{/tikz/arc to/radius=\meta{value}} - This forwards the \meta{value} to both |/tikz/x radius| and |/tikz/y radius|. - Its \meta{value} is used for radius of the arc. -\end{key} - -\begin{stylekey}{/tikz/every arc to} - After |/tikz/every arc| this will also be applied before any \meta{options} are set. -\end{stylekey} - -It should be noted that this uses |\pgfpatharcto| for which the \tikzname\space manual warns:\indexCommandO\pgfpatharcto -\begin{quote}\itshape - The internal computations necessary for this command are numerically very unstable. - In particular, the arc will not always really end at the \meta{target coordinate}, - but may be off by up to several points. - A more precise positioning is currently infeasible due to \TeX's numerical weaknesses. - The only case it works quite nicely is when the resulting angle is a multiple of $90^\circ$. -\end{quote} - -The |arc to| path operation will also work only in the |canvas| coordinate system. -The lengths of the vectors $(1, 0)$ and $(0, 1)$ will be used for the calculation of the radii -but no further consideration is done. -\end{pathoperation} \ No newline at end of file -- cgit v1.2.3