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如何扩展树的背景填充颜色范围？

tag-icon • tag-icon tikz-pgf forest scoping
如何扩展树的背景填充颜色范围？

我基本上希望将其延伸得scope更远一些，以便它不会碰到节点或阴影。

在此处输入图片描述

父节点和中间子节点之间还有一个微小的“勾号”，我不知道如何将其删除。

\documentclass{article}
\usepackage{tikz}
\usepackage{tikzpagenodes}
\usetikzlibrary{arrows.meta,shapes.geometric,shadows,shadings,positioning,matrix,calc,backgrounds,fadings}
\tikzfading[name=fade right,
left color=transparent!0,
right color=transparent!100]
\usepackage{fontawesome5}
\usepackage{xcolor-material}
\usepackage{graphicx}
\usepackage[sfdefault]{FiraSans}


\colorlet{cinza}{MaterialGrey600}
\colorlet{vermelho}{MaterialRed400}
\usepackage[edges]{forest}
\usetikzlibrary{fit}

\begin{document}

        \begin{forest}
        for tree={
            fill=cinza,rounded corners,align=center,rectangle,
        drop shadow,text=white,inner sep=6pt,l sep=.6cm,
        fork sep=.3cm,
     %line width=1pt,
    %draw=MaterialYellow800,
     edge={thick, draw=cinza, rounded corners=1pt},
},
for 1={fork sep = .6cm},
for 3={fork sep = .6cm},
 forked edges,
 [Presidente,before drawing tree={x+=1.29cm}, l sep+=2em,fill=MaterialOrange600,
        [Departamento\\Comercial
            [Ger. Marketing]
            [Ger. Vendas]
            ]
 [Departamento\\de Produção
 [Ger. Produção]
 [Ger. Compras]
 ]
[Departamento\\Financeiro,before drawing tree={x+=2.5cm}]
]
\begin{scope}[on background layer]
    \fill[top color=MaterialGreen400,bottom color=MaterialGrey200,inner ysep=1em, inner xsep=1em, outer sep=1pt,%path fading=fade right
    rounded corners
    ] 
    (current bounding box.north west) rectangle (current bounding box.south east);
\end{scope}
\end{forest}

\end{document}

答案1

shadow xshift你可以通过和 来扩展拟合shadow yshift。这是通过 中的移位实现的

(current bounding box.north west) rectangle 
([yshift=-0.5ex,xshift=0.5ex]current bounding box.south east);

然后，您的树包含一些节点的移位，这对于早期版本来说可能足够了。为了找出您需要的移位，请删除

before drawing tree={x+=36.06616pt}

从根节点键入并取消注释

\path let \p1=($(dep)-(pres)$) in \pgfextra{\typeout{\x1}};

这将告诉您需要移动的精确尺寸。

\documentclass{article}
\usepackage[margin=1in]{geometry}%<- to make the page fit the tree
\usepackage{tikz}
\usepackage{tikzpagenodes}
\usetikzlibrary{fit,shadows,fadings,backgrounds}
\tikzfading[name=fade right,
left color=transparent!0,
right color=transparent!100]
\usepackage{fontawesome5}
\usepackage{xcolor-material}
\usepackage[sfdefault]{FiraSans}


\colorlet{cinza}{MaterialGrey600}
\colorlet{vermelho}{MaterialRed400}
\usepackage[edges]{forest}

\begin{document}

        \begin{forest}
        for tree={anchor=center,%<-added
            fill=cinza,rounded corners,align=center,rectangle,
        drop shadow,text=white,inner sep=6pt,l sep=.6cm,
        fork sep=.3cm,
     %line width=1pt,
    %draw=MaterialYellow800,
     edge={thick, draw=cinza, rounded corners=1pt},
},
for 1={fork sep = .6cm},
for 3={fork sep = .6cm},
 forked edges,
 [Presidente, l sep+=2em,before drawing tree={x+=36.06616pt},fill=MaterialOrange600,alias=pres
        [Departamento\\Comercial
            [Ger. Marketing]
            [Ger. Vendas]
            ]
 [Departamento\\de Produc\~ao,alias=dep
 [Ger. Produc\~ao]
 [Ger. Compras]
 ]
[Departamento\\Financeiro,before drawing tree={x+=2.5cm}]
]
% restore this if you need to readjust the position of the root node
%\path let \p1=($(dep)-(pres)$) in \pgfextra{\typeout{\x1}};
\begin{scope}[on background layer]
    \fill[top color=MaterialGreen400,bottom color=MaterialGrey200,inner ysep=1em, inner xsep=1em, outer sep=1pt,%path fading=fade right
    rounded corners
    ] 
    (current bounding box.north west) rectangle 
    ([yshift=-0.5ex,xshift=0.5ex]current bounding box.south east);
\end{scope}
\end{forest}

\end{document}

在此处输入图片描述

如果你让边界框更大，例如使用

\fill[top color=MaterialGreen400,bottom color=MaterialGrey200,inner ysep=1em, inner xsep=1em, outer sep=1pt,%path fading=fade right
rounded corners
] 
([xshift=-1em,yshift=1em]current bounding box.north west) rectangle 
([yshift=-0.5ex-1em,xshift=0.5ex+1em]current bounding box.south east);

你会得到

在此处输入图片描述

答案2

这是由纯 TikZ 手工制作的阴影节点。

在此处输入图片描述

\documentclass[tikz,border=0mm]{standalone}
\usetikzlibrary{backgrounds}
\begin{document}
\begin{tikzpicture}[n/.style={rounded corners,align=center,minimum height=1.2cm,minimum width=3.5cm,font=\sffamily,text=white}]
\def\shadowednode#1#2#3#4{
\path #1 node[n,fill=gray!50,shift={(.2,-.15)}]{#2}
node[n,fill=#4] (#3) {#2};
}
\shadowednode{(0,0)}{University of \\Natural Sciences}{NS}{orange}
\shadowednode{(0,-2.5)}{Department of\\ Mathematics}{M}{brown}
\shadowednode{(5,-2.5)}{Department of\\ Physics}{P}{brown}
\shadowednode{(-5,-2.5)}{Department of\\ Biology}{B}{brown}

\draw 
(NS.south)--(M.north) 
(NS.south)--++(-90:.5)-|(B.north)
(NS.south)--++(-90:.5)-|(P.north);
\begin{scope}[on background layer]
\fill[top color=green!50,bottom color=teal]
(current bounding box.south west)+(-.5,-.5) 
rectangle
([shift={(.5,.5)}]current bounding box.north east);
\end{scope}
\end{tikzpicture}
\end{document}

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