☰

非线性变换后放置 tikz 对象

tag-icon • tag-icon tikz-pgf
非线性变换后放置 tikz 对象

我正在尝试将某些对象放置在我的页面上。通常，您可以使用参数shift将对象放置在一组坐标上，甚至current page。对于以下一段代码，这些似乎都不起作用：

\documentclass{article}
\usepackage[a4paper]{geometry}
\usepackage[usenames,dvipsnames]{color}
\usepackage{tikz}
\usetikzlibrary{fadings,shapes.arrows,curvilinear,shadings}
\usepgfmodule{nonlineartransformations}
\pagenumbering{gobble}

\definecolor{lightblue}{RGB}{51,127,230}
\definecolor{olive2}{RGB}{64,196,0}
\definecolor{dorange}{RGB}{255,140,0}

\tikzfading[name=arrowfading, left color=transparent!0, right color=transparent!35]
\tikzset{
arrownode/.style={
    transform shape nonlinear=true,
    shape=double arrow, 
    line width=10mm,
    shape border rotate=180,
    upper left=cyan!25,
    lower left=dorange!5,
    upper right=olive!35,
    lower right=dorange!20,
    path fading=arrowfading
}
}
\makeatletter
\def\polartransformation{% I'll probably need another transformation? I can't find anything in the PGF manual on using a third variable
\pgfmathsincos@{\pgf@x}
\pgf@x=\pgfmathresultx\pgf@y%
\pgf@y=\pgfmathresulty\pgf@y%
}
\makeatother

\begin{document}
\centering
\begin{tikzpicture}
\begin{scope}[remember picture,overlay]% I want to use shift={<argument>} here in CARTESIAN COORDINATES.
\pgftransformnonlinear{\polartransformation}
%%%%%%%%%%%%%% Draw the node
\node[arrownode,shading angle=0] (a) at (1.5*pi,-5) {\phantom{\hspace{2cm}Gleidende schaal\hspace{4cm}}};
\end{scope}
\end{tikzpicture}
\end{document}

我怎样才能让这个东西到达例如（-5，-5）？

答案1

我修改了我的解决方案，使用以下方法有哪些方法可以将内容绝对定位在页面上？通过指定绝对纸张坐标来放置对象。我将对象放置为“水印”，但我不清楚这是否是您想要的，或者它是否可以满足您的需求。

\documentclass{article}
\usepackage[a4paper]{geometry}
\usepackage[usenames,dvipsnames]{color}
\usepackage{tikz}
\usetikzlibrary{fadings,shapes.arrows,curvilinear,shadings}
\usepgfmodule{nonlineartransformations}
\pagenumbering{gobble}

\definecolor{lightblue}{RGB}{51,127,230}
\definecolor{olive2}{RGB}{64,196,0}
\definecolor{dorange}{RGB}{255,140,0}

\tikzfading[name=arrowfading, left color=transparent!0, right color=transparent!35]
\tikzset{
arrownode/.style={
    transform shape nonlinear=true,
    shape=double arrow, 
    line width=10mm,
    shape border rotate=180,
    upper left=cyan!25,
    lower left=dorange!5,
    upper right=olive!35,
    lower right=dorange!20,
    path fading=arrowfading
}
}
\makeatletter
\def\polartransformation{% I'll probably need another transformation? I can't find anything in the PGF manual on using a third variable
\pgfmathsincos@{\pgf@x}
\pgf@x=\pgfmathresultx\pgf@y%
\pgf@y=\pgfmathresulty\pgf@y%
}
\makeatother
\usepackage{lipsum}
\usepackage{everypage}
\def\PageTopMargin{1in}
\def\PageLeftMargin{1in}
\newcommand\atxy[3]{%
 \AddThispageHook{\smash{\hspace*{\dimexpr-\PageLeftMargin-\hoffset+#1\relax}%
  \raisebox{\dimexpr\PageTopMargin+\voffset-#2\relax}{\textcolor{red}{#3}}}}}
\begin{document}
\lipsum[1]
\atxy{4.25in}{5.5in}{%SHIFT IS ACCOMPLISHED HERE IN CARTESIAN (PAPER COORDINATES)
\begin{tikzpicture}
\begin{scope}[remember picture,overlay]% I want to use shift={<argument>} here in CARTESIAN COORDINATES.
\pgftransformnonlinear{\polartransformation}
%%%%%%%%%%%%%% Draw the node
\node[arrownode,shading angle=0] (a) at (1.5*pi,-5) {\phantom{\hspace{2cm}Gleidende schaal\hspace{4cm}}};
\end{scope}
\end{tikzpicture}%
}
\lipsum[2]
\end{document}

在此处输入图片描述

如果不想将其作为水印效果，则正确使用\vspace或其他一些空格跳过机制（例如，紧接着之前\lipsum[2]）将允许将图形隔离：

在此处输入图片描述

答案2

经过一番摆弄和询问后，我得到了以下答案：在 tikz-pgf 中，可以将节点嵌入到另一个节点中：

\draw (0,0) node {\begin{tikzpicture}

\begin{scope}[remember picture,overlay] \pgftransformnonlinear{\polartransformation}

\node[arrownode,shading angle=0] (a) at (1.5*pi,-5) {\phantom{\hspace{2cm}Gleidende schaal\hspace{4cm}}};



\path[decorate,decoration={text along path,text format delimiters={[}{]},

           text={[\Huge]GLEIDENDE SCHAAL},

            text align={fit to path},

            raise=-2ex,

          }](a.west) -- (a.east);

\end{scope}

\end{tikzpicture}};

这也允许您在同一张图片中引用该节点。

相关内容