我目前正在“建模”蜘蛛网图。我需要可视化像 8.95 这样的小数。在互联网上，我找到了一个非常好的解决方案来建模蜘蛛网图。不幸的是，所有小数都会四舍五入，这会导致图表中的可视化结果错误。
我尝试了两件事，但没有成功：
- 将范围从 0-15（值 8.95）增加到 0-1500（值 895）
\begin{tikzpicture}[scale=1,x=15.0,y=15.0]
有人知道如何允许蜘蛛网中出现小数吗？提前谢谢！
这里是 MWE：
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% Spiderweb Diagram
%
% Author: Dominik Renzel
% Date; 2009-11-11
\documentclass{article}
%%%<
\usepackage{verbatim}
\usepackage[active,tightpage,floats]{preview}
\setlength\PreviewBorder{5pt}%
%%%>
\usepackage{tikz}
\usetikzlibrary{shapes}
\begin{document}
\newcommand{\D}{7} % number of dimensions (config option)
\newcommand{\U}{7} % number of scale units (config option)
\newdimen\R % maximal diagram radius (config option)
\R=3.5cm
\newdimen\L % radius to put dimension labels (config option)
\L=4cm
\newcommand{\A}{360/\D} % calculated angle between dimension axes
\begin{figure}[htbp]
\centering
\begin{tikzpicture}[scale=1]
\path (0:0cm) coordinate (O); % define coordinate for origin
% draw the spiderweb
\foreach \X in {1,...,\D}{
\draw (\X*\A:0) -- (\X*\A:\R);
}
\foreach \Y in {0,...,\U}{
\foreach \X in {1,...,\D}{
\path (\X*\A:\Y*\R/\U) coordinate (D\X-\Y);
\fill (D\X-\Y) circle (1pt);
}
\draw [opacity=0.3] (0:\Y*\R/\U) \foreach \X in {1,...,\D}{
-- (\X*\A:\Y*\R/\U)
} -- cycle;
}
% define labels for each dimension axis (names config option)
\path (1*\A:\L) node (L1) {\tiny Security};
\path (2*\A:\L) node (L2) {\tiny Content Quality};
\path (3*\A:\L) node (L3) {\tiny Performance};
\path (4*\A:\L) node (L4) {\tiny Stability};
\path (5*\A:\L) node (L5) {\tiny Usability};
\path (6*\A:\L) node (L6) {\tiny Generality};
\path (7*\A:\L) node (L7) {\tiny Popularity};
% Example Case (blue)
\draw [color=blue,line width=1.5pt,opacity=0.5]
(D1-1.5) --
(D2-6.5) --
(D3-4.2) --
(D4-4.8) --
(D5-3.6) --
(D6-5.1) --
(D7-2.3) -- cycle;
\end{tikzpicture}
\caption{Spiderweb Diagram (\D~Dimensions, \U-Notch Scale, 3 Samples)}
\label{fig:spiderweb}
\end{figure}
\end{document}
答案1
您可以通过使用calc库“混合”节点来实现您想要的效果。我在您的代码片段中添加了 3 个示例，其中两个节点设置在两个节点的中间，另一个节点贡献了 85%，这可能就是您所说的 4.85。
\documentclass{article}
%%%<
\usepackage{verbatim}
\usepackage[active,tightpage,floats]{preview}
\setlength\PreviewBorder{5pt}%
%%%>
\usepackage{tikz}
\usetikzlibrary{shapes}
\usetikzlibrary{calc}%<-added
\begin{document}
\newcommand{\D}{7} % number of dimensions (config option)
\newcommand{\U}{7} % number of scale units (config option)
\newdimen\R % maximal diagram radius (config option)
\R=3.5cm
\newdimen\L % radius to put dimension labels (config option)
\L=4cm
\newcommand{\A}{360/\D} % calculated angle between dimension axes
\begin{figure}[htbp]
\centering
\begin{tikzpicture}[scale=1]
\path (0:0cm) coordinate (O); % define coordinate for origin
% draw the spiderweb
\foreach \X in {1,...,\D}{
\draw (\X*\A:0) -- (\X*\A:\R);
}
\foreach \Y in {0,...,\U}{
\foreach \X in {1,...,\D}{
\path (\X*\A:\Y*\R/\U) coordinate (D\X-\Y);
\fill (D\X-\Y) circle (1pt);
}
\draw [opacity=0.3] (0:\Y*\R/\U) \foreach \X in {1,...,\D}{
-- (\X*\A:\Y*\R/\U)
} -- cycle;
}
% define labels for each dimension axis (names config option)
\path (1*\A:\L) node (L1) {\tiny Security};
\path (2*\A:\L) node (L2) {\tiny Content Quality};
\path (3*\A:\L) node (L3) {\tiny Performance};
\path (4*\A:\L) node (L4) {\tiny Stability};
\path (5*\A:\L) node (L5) {\tiny Usability};
\path (6*\A:\L) node (L6) {\tiny Generality};
\path (7*\A:\L) node (L7) {\tiny Popularity};
% Example Case (blue)
\draw [color=blue,line width=1.5pt,opacity=0.5]
($(D1-1)!0.5!(D1-2)$) --
(D2-6.5) --
(D3-4.2) --
($(D4-4)!0.85!(D4-5)$) --
(D5-3.6) --
(D6-5.1) --
(D7-2.3) -- cycle;
\end{tikzpicture}
\caption{Spiderweb Diagram (\D~Dimensions, \U-Notch Scale, 3 Samples)}
\label{fig:spiderweb}
\end{figure}
\end{document}
