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Diffstat (limited to 'Master/texmf-dist/doc/generic/pgf/text-en/pgfmanual-en-library-angles.tex')
| -rw-r--r-- | Master/texmf-dist/doc/generic/pgf/text-en/pgfmanual-en-library-angles.tex | 91 |
1 files changed, 55 insertions, 36 deletions
diff --git a/Master/texmf-dist/doc/generic/pgf/text-en/pgfmanual-en-library-angles.tex b/Master/texmf-dist/doc/generic/pgf/text-en/pgfmanual-en-library-angles.tex index c46a6e4204b..975afd3d5b8 100644 --- a/Master/texmf-dist/doc/generic/pgf/text-en/pgfmanual-en-library-angles.tex +++ b/Master/texmf-dist/doc/generic/pgf/text-en/pgfmanual-en-library-angles.tex @@ -9,44 +9,44 @@ \section{Angle Library} - \label{section-angle} \begin{tikzlibrary}{angles} - This library defines pic types for drawing angles. + This library defines pic types for drawing angles. \end{tikzlibrary} \begin{pictype}{angle}{\opt{|=|\meta{A}|--|\meta{B}|--|\meta{C}}} - This pic adds a drawing of an angle to the current path. This - ``drawing of an angle'' consist of a ``sector'' or ``wedge'' or - ``slice'' whose pointed end is at point \meta{B} and whose straight - sides lie on the lines form \meta{B} to \meta{A} and from \meta{B} - to \meta{C}. The length of these lines is governed by the following - key: - \begin{key}{/tikz/angle radius=\meta{dimension} (initially 5mm)} - The length of the sides of the angle's wedge: + This pic adds a drawing of an angle to the current path. This ``drawing of + an angle'' consist of a ``sector'' or ``wedge'' or ``slice'' whose pointed + end is at point \meta{B} and whose straight sides lie on the lines form + \meta{B} to \meta{A} and from \meta{B} to \meta{C}. The length of these + lines is governed by the following key: + % + \begin{key}{/tikz/angle radius=\meta{dimension} (initially 5mm)} + The length of the sides of the angle's wedge: + % \begin{codeexample}[] \tikz \draw (2,0) coordinate (A) -- (0,0) coordinate (B) -- (-1,-1) coordinate (C) pic [fill=black!50] {angle = A--B--C} pic [draw,->,red,thick,angle radius=1cm] {angle = C--B--A}; \end{codeexample} - \end{key} - - The three points \meta{A}, \meta{B}, and \meta{C} \emph{must} be the - names of nodes or coordinates; you cannot use direct coordinates like - ``|(1,1)|'' here. + \end{key} - You can leave out the three points, in this case the text |A--B--C| - is used; so in the above examples we could just have written - |{angle}| in the first pic. + The three points \meta{A}, \meta{B}, and \meta{C} \emph{must} be the names + of nodes or coordinates; you cannot use direct coordinates like ``|(1,1)|'' + here. - Concerning the sector that makes up the drawing of the angle, the - angular part of this sector is drawn in front of the path if the - |draw| option is given to the |pic|, while filled sector is drawn - behind the |pic|, provided an option like |fill| or |shade| is - passed to the pic. The following example shows the difference: + You can leave out the three points, in this case the text |A--B--C| is + used; so in the above examples we could just have written |{angle}| in the + first pic. + Concerning the sector that makes up the drawing of the angle, the angular + part of this sector is drawn in front of the path if the |draw| option is + given to the |pic|, while filled sector is drawn behind the |pic|, provided + an option like |fill| or |shade| is passed to the pic. The following + example shows the difference: + % \begin{codeexample}[] \tikz \draw [line width=2mm] (2,0) coordinate (A) -- (0,0) coordinate (B) @@ -54,36 +54,55 @@ pic [draw=blue, fill=blue!50, angle radius=1cm] {angle}; \end{codeexample} - When |pic text| is set (which you typically do by using the quotes - syntax), a node will be created whose name is empty - (and, thus, inherits the pic's name) and which will be at the - half-way angle between the lines to \meta{A} and \meta{C} and whose - distance from \meta{B} is |angle radius| times the following factor: - \begin{key}{/tikz/angle eccentricity=\meta{factor} (initially 0.6)} + When |pic text| is set (which you typically do by using the quotes syntax), + a node will be created whose name is empty (and, thus, inherits the pic's + name) and which will be at the half-way angle between the lines to \meta{A} + and \meta{C} and whose distance from \meta{B} is |angle radius| times the + following factor: + % + \begin{key}{/tikz/angle eccentricity=\meta{factor} (initially 0.6)} \begin{codeexample}[] \tikz \draw (2,0) coordinate (A) -- (0,0) coordinate (B) -- (1,1) coordinate (C) pic ["$\alpha$", draw, ->] {angle}; -\end{codeexample} +\end{codeexample} + % \begin{codeexample}[] \tikz \draw (2,0) coordinate (A) -- (0,0) coordinate (B) -- (1,1) coordinate (C) pic ["$\alpha$", draw, angle eccentricity=1] {angle}; -\end{codeexample} +\end{codeexample} + % \begin{codeexample}[] \tikz { \draw (2,0) coordinate (A) -- (0,0) coordinate (B) -- (1,1) coordinate (C) pic (alpha) ["$\alpha$", draw] {angle}; - + \draw (alpha) circle [radius=5pt]; } -\end{codeexample} - \end{key} +\end{codeexample} + \end{key} +\end{pictype} + +\begin{pictype}{right angle}{\opt{|=|\meta{A}|--|\meta{B}|--|\meta{C}}} + This pic adds a drawing of a right angle to the current path. It works in + the same way as |angle| pic. + % +\begin{codeexample}[] + \tikz + \draw (1,0,0) coordinate (A) -- (0,0,0) coordinate (B) + -- (0,0,1) coordinate (C) + (B) -- (0,1,0) coordinate (D) + pic [fill=gray,angle radius=4mm] {right angle = A--B--C} + pic [draw,red,thick,angle eccentricity=.5,pic text=$\cdot$] + {right angle = A--B--D}; +\end{codeexample} + % \end{pictype} -%%% Local Variables: +%%% Local Variables: %%% mode: latex %%% TeX-master: "pgfmanual-pdftex-version" -%%% End: +%%% End: |