☰

故障树：锚固门问题

tag-icon • tag-icon tikz-pgf tikz-styles
故障树：锚固门问题

我正在尝试修改故障树，例如来自 Tikz 的故障树，其中节点是门之类的对象而不是文本框，并且如果可能的话，甚至会从一些路径中消除文本框。这是我到目前为止的代码。

\documentclass[border=10pt]{standalone}
\usepackage{tikz}
\usetikzlibrary{trees,calc,shadings,shapes.gates.logic.US,positioning,arrows}
\usetikzlibrary{shapes,snakes}

\begin{document}

\begin{tikzpicture}
 [
% Gates and symbols style
    and/.style={and gate US,thick,draw,fill=red!60,rotate=90,
        anchor=east,xshift=-1mm},
    or/.style={or gate US,thick,draw,fill=blue!60,rotate=90,
        anchor=east,xshift=-1mm},
    be/.style={circle,thick,draw,fill=green!60,anchor=north,
        minimum width=0.7cm},
    tr/.style={buffer gate US,thick,draw,fill=purple!60,rotate=90,
        anchor=east,minimum width=0.8cm},
    sq/.style={regular polygon,regular polygon sides=4,thick,draw,fill=orange!60,anchor=north, scale=0.2},
% Label style
    label distance=3mm,  every label/.style={blue},
% Event style
    event/.style={rectangle,thick,draw,fill=yellow!20,text width=2cm, text centered,font=\sffamily,anchor=north},
    event2/.style={rectangle,draw=white, fill=white,},
    and2/.style={and gate US,draw,fill=red!60,rotate=90, scale=0.5 },
% Children and edges style
    edge from parent/.style={very thick,draw=black!70},
    edge from parent path={(\tikzparentnode.south) -- ++(0,-1.05cm)-| (\tikzchildnode.north)},
    level 1/.style={sibling distance=4cm,level distance=1.5cm, growth parent anchor=south,nodes=event},
    level 2/.style={sibling distance=3cm, level distance=2cm},
    level 3/.style={sibling distance=3cm},
    level 4/.style={sibling distance=3cm}
    ]
%% Draw events and edges
    \node (g1) [event] {System Failure}
            child {node (e1) {Midplane}}
            child {node [event] (e2) {k/n}
                child {node [sq] (e2a) {1}}
                child {node [sq] (e2b) {2}}
                child[level distance=20mm] {node (e2c) [or, scale=0.4] {}
                    child {node [sq] (e2c1) {x}}
                    child {node [sq] (e2c2) {y}}
                }
                child {node [sq] (e2d) {4}}
            }
            child {node (e3) {Cooling}}
            child {node (e4) {Power domain 1}}
            ;
%  Remove what follows if no gates are required
   \node [or]   at (g1.south)   []  {};
   \node [be]   at (e1.south)   []  {};
   \node [and]   at (e2.south)   []  {};
   \node [be]   at (e3.south)   {};
   \node [be]   at (e4.south)   {};
\end{tikzpicture}

\end{document}

如您所见，我显然在与中间的蓝色“或”门作斗争。我哪里做错了？

答案1

只是为了解释一下你的代码出了什么问题：

问题在于你对edge from parent path

edge from parent path={(\tikzparentnode.south) -- ++(0,-1.05cm)-| (\tikzchildnode.north)}

但由于旋转，节点的锚点or/.style在它们的左侧，而锚点在它们的右侧。（见northorsouth如何管理旋转矩形的定位) 因此您必须更改树中的子项的child anchor、parent anchor以及的。growth parent anchoror

如果你使用

edge from parent path={(\tikzparentnode\tikzparentanchor) -- 
    ++(0,-1.05cm)-| (\tikzchildnode\tikzchildanchor)},
parent anchor=south,
child anchor=north,

您可以更改树内的parent anchor和。child anchor

\documentclass[border=10pt]{standalone}
\usepackage{tikz}
\usetikzlibrary{trees,calc,shadings,shapes.gates.logic.US,positioning,arrows}
\usetikzlibrary{shapes}

\begin{document}

\begin{tikzpicture}
 [
% Gates and symbols style
    and/.style={and gate US,thick,draw=black,fill=red!60,rotate=90,
        anchor=east,xshift=-1mm},
    or/.style={or gate US,thick,draw=black,fill=blue!60,rotate=90,
        anchor=east,xshift=-1mm},
    be/.style={circle,thick,draw=black,fill=green!60,anchor=north,
        minimum width=0.7cm},
    tr/.style={buffer gate US,thick,draw=black,fill=purple!60,rotate=90,
        anchor=east,minimum width=0.8cm},
    sq/.style={regular polygon,regular polygon sides=4,thick,draw=black,fill=orange!60,anchor=north, scale=0.2},
% Label style
    label distance=3mm,  every label/.style={blue},
% Event style
    event/.style={rectangle,thick,draw=black,fill=yellow!20,text width=2cm, text centered,font=\sffamily,anchor=north},
    event2/.style={rectangle,draw=white, fill=white,},
    and2/.style={and gate US,draw,fill=red!60,rotate=90, scale=0.5 },
% Children and edges style
    edge from parent/.style={very thick,draw=black!70},
    edge from parent path={(\tikzparentnode\tikzparentanchor) --  ++(0,-1.05cm) -| (\tikzchildnode\tikzchildanchor)},
    parent anchor=south,
    child anchor=north,
    level 1/.style={sibling distance=4cm,level distance=1.5cm, growth parent anchor=south,nodes=event},
    level 2/.style={sibling distance=3cm, level distance=2cm},
    level 3/.style={sibling distance=3cm},
    level 4/.style={sibling distance=3cm}
    ]
    \node (g1) [event] {System Failure}
            child {node (e1) {Midplane}}
            child {node [event] (e2) {k/n}
                child {node [sq] (e2a) {1}}
                child {node [sq] (e2b) {2}}
                child[child anchor=east] {node (e2c) [or, text width=0pt] {}
                    {[parent anchor=west,growth parent anchor=west,child anchor=north]
                      child {node [sq] (e2c1) {x}}
                      child {node [sq] (e2c2) {y}}}
                }
                child {node [sq] (e2d) {4}}
            }
            child {node (e3) {Cooling}}
            child {node (e4) {Power domain 1}}
            ;
%  Remove what follows if no gates are required
   \node [or]   at (g1.south)   []  {};
   \node [be]   at (e1.south)   []  {};
   \node [and]   at (e2.south)   []  {};
   \node [be]   at (e3.south)   {};
   \node [be]   at (e4.south)   {};
\end{tikzpicture}

\end{document}

在此处输入图片描述

答案2

根据显示的代码，所有门都通过\node代码末尾列出的命令放置在它们所在的位置。因此，(e2c) 节点是与其邻居一样的矩形节点。因此，您不能简单地OR在该节点的选项中放置一个，这会导致 OP 所显示的结果。一种解决方法是将 (e2c) 节点更改为坐标，使其没有形状，然后OR通过额外的节点命令放置一个，如下所示，yshift用于调整OR门的位置。

在此处输入图片描述

代码

\documentclass[border=10pt]{standalone}
\usepackage{tikz}
\usetikzlibrary{trees,calc,shadings,shapes.gates.logic.US,positioning,arrows}
\usetikzlibrary{shapes,snakes}

\begin{document}

\begin{tikzpicture}
 [
% Gates and symbols style
    and/.style={and gate US,thick,draw,fill=red!60,rotate=90,
        anchor=east,xshift=-1mm},
    or/.style={or gate US,thick,draw,fill=blue!60,rotate=90,
        anchor=east,xshift=-1mm},
    be/.style={circle,thick,draw,fill=green!60,anchor=north,
        minimum width=0.7cm},
    tr/.style={buffer gate US,thick,draw,fill=purple!60,rotate=90,
        anchor=east,minimum width=0.8cm},
    sq/.style={regular polygon,regular polygon sides=4,thick,draw,fill=orange!60,anchor=north, scale=0.2},
% Label style
    label distance=3mm,  every label/.style={blue},
% Event style
    event/.style={rectangle,thick,draw,fill=yellow!20,text width=2cm, text centered,font=\sffamily,anchor=north},
    event2/.style={rectangle,draw=white, fill=white,},
    and2/.style={and gate US,draw,fill=red!60,rotate=90, scale=0.5 },
% Children and edges style
    edge from parent/.style={very thick,draw=black!70},
    edge from parent path={(\tikzparentnode.south) -- ++(0,-1.05cm)-| (\tikzchildnode.north)},
    level 1/.style={sibling distance=4cm,level distance=1.5cm, growth parent anchor=south,nodes=event},
    level 2/.style={sibling distance=3cm, level distance=2cm},
    level 3/.style={sibling distance=3cm},
    level 4/.style={sibling distance=3cm}
    ]
%% Draw events and edges
    \node (g1) [event] {System Failure}
            child {node (e1) {Midplane}}
            child {node [event] (e2) {k/n}
                child {node [sq] (e2a) {1}}
                child {node [sq] (e2b) {2}}
                child[level distance=20mm] {node (e2c) [coordinate,scale=0.4] {}  % change the node to coordinate property, the default is a rectangle.
                    child {node [sq] (e2c1) {x}}
                    child {node [sq] (e2c2) {y}}
                }
                child {node [sq] (e2d) {4}}
            }
            child {node (e3) {Cooling}}
            child {node (e4) {Power domain 1}}
            ;
%  Remove what follows if no gates are required
   \node [or]   at ([yshift=0.5cm]e2c.south) []  {};     % added one line here
   \node [or]   at (g1.south)   []  {};
   \node [be]   at (e1.south)   []  {};
   \node [and]  at (e2.south)   []  {};
   \node [be]   at (e3.south)   {};
   \node [be]   at (e4.south)   {};
\end{tikzpicture}

\end{document}

相关内容