当我在 Tikz 中使用大量节点时，它们开始重叠（见下面的屏幕截图）。我尝试按照tikz 中的重叠节点，但它并不能解决我的情况的问题。
有人能告诉我如何解决这个问题，以便在我将节点数从 5 增加到 50、100 等时不会出现重叠吗？换句话说，我不希望节点仅限于页面并且必须重叠。我希望 tikz 图像能够缩放，这样节点就会越来越小。
注意我正在使用pdflatex编译
\documentclass{article}
\usepackage{tikz}
\usepackage{adjustbox} %shrink Tikz or figures
\usepackage{pdflscape} %landscape Tikz image
\usetikzlibrary{positioning,shadows,shapes,arrows}
\begin{document}
\tikzstyle{abstract}=[rectangle, draw=black, rounded corners, fill=blue, drop shadow,
text centered, anchor=north, text=white, text width=3cm, text justified]
\tikzstyle{comment}=[rectangle, draw=black, rounded corners, fill=blue!70, drop shadow,
text centered, anchor=north, text=white, text width=3cm]
\tikzstyle{myarrow}=[->, >=open triangle 90, thick]
\tikzstyle{line}=[-, thick]
%\begin{minipage}{0.6\textwidth}
\begin{landscape}
\begin{center}
\begin{adjustbox}{max size={\textwidth}{\textheight}}
\begin{tikzpicture}[node distance=2cm]
\node (909581201875) [abstract, rectangle split, rectangle split parts=2]
{
\textbf{Blablabla}
\nodepart{second}Date
};
\node (898435211607) [abstract, rectangle split, rectangle split parts=2, below=of 909581201875.south east, anchor=north west]
{
\textbf{Blablabla}
\nodepart{second}
};
\node (584324999444) [abstract, rectangle split, rectangle split parts=2, below=of 898435211607.south, anchor=north]
{
\textbf{Blablabla}
\nodepart{second}
};
\node (423475839122) [abstract, rectangle split, rectangle split parts=2, below=of 584324999444.south, anchor=north]
{
\textbf{Blablabla}
\nodepart{second}
};
\node (540317204728) [abstract, rectangle split, rectangle split parts=2, left=of 423475839122.north west, anchor=north east]
{
\textbf{Blablabla}
\nodepart{second}
};
\node (852163503990) [abstract, rectangle split, rectangle split parts=2, right=of 423475839122.north east, anchor=north west]
{
\textbf{Blablabla}
\nodepart{second}
};
\node (633894928094) [abstract, rectangle split, rectangle split parts=2, below=of 852163503990.south, anchor=north]
{
\textbf{Blablabla}
\nodepart{second}
};
\node (54320513415) [abstract, rectangle split, rectangle split parts=2, below=of 633894928094.south east, anchor=north west]
{
\textbf{Blablabla}
\nodepart{second}
};
\node (238657438490) [abstract, rectangle split, rectangle split parts=2, below=of 633894928094.south west, anchor=north east]
{
\textbf{Blablabla}
\nodepart{second}
};
\node (464370106410) [abstract, rectangle split, rectangle split parts=2, below=of 909581201875.south west, anchor=north east]
{
\textbf{Blablabla}
\nodepart{second}
};
\node (633460844958) [abstract, rectangle split, rectangle split parts=2, right=of 898435211607.north east, anchor=north west]
{
\textbf{Blablabla}
\nodepart{second}
};
\node (218694230243) [abstract, rectangle split, rectangle split parts=2, left=of 464370106410.north west, anchor=north east]
{
\textbf{Blablabla}
\nodepart{second}
};
\node (61530530105) [abstract, rectangle split, rectangle split parts=2, below=of 218694230243.south, anchor=north]
{
\textbf{Blablabla}
\nodepart{second}
};
\node (968717179313) [abstract, rectangle split, rectangle split parts=2, left=of 61530530105.north west, anchor=north east]
{
\textbf{Blablabla}
\nodepart{second}
};
\node (508997622434) [abstract, rectangle split, rectangle split parts=2, right=of 61530530105.north east, anchor=north west]
{
\textbf{Blablabla}
\nodepart{second}
};
\node (341903186786) [abstract, rectangle split, rectangle split parts=2, below=of 508997622434.south, anchor=north]
{
\textbf{Blablabla}
\nodepart{second}
};
\node (193704826075) [abstract, rectangle split, rectangle split parts=2, below=of 341903186786.south east, anchor=north west]
{
\textbf{Blablabla}
\nodepart{second}
};
\node (405958494301) [abstract, rectangle split, rectangle split parts=2, below=of 341903186786.south west, anchor=north east]
{
\textbf{Blablabla}
\nodepart{second}
};
\draw[myarrow] (898435211607.north) -- ++(0,0.8) -| (909581201875.south);
\draw[myarrow] (584324999444.north) -- ++(0,0.8) -| (898435211607.south);
\draw[myarrow] (423475839122.north) -- ++(0,0.8) -| (584324999444.south);
\draw[myarrow] (540317204728.north) -- ++(0,0.8) -| (584324999444.south);
\draw[myarrow] (852163503990.north) -- ++(0,0.8) -| (584324999444.south);
\draw[myarrow] (633894928094.north) -- ++(0,0.8) -| (852163503990.south);
\draw[myarrow] (54320513415.north) -- ++(0,0.8) -| (633894928094.south);
\draw[myarrow] (238657438490.north) -- ++(0,0.8) -| (633894928094.south);
\draw[myarrow] (464370106410.north) -- ++(0,0.8) -| (909581201875.south);
\draw[myarrow] (633460844958.north) -- ++(0,0.8) -| (909581201875.south);
\draw[myarrow] (218694230243.north) -- ++(0,0.8) -| (909581201875.south);
\draw[myarrow] (61530530105.north) -- ++(0,0.8) -| (218694230243.south);
\draw[myarrow] (968717179313.north) -- ++(0,0.8) -| (218694230243.south);
\draw[myarrow] (508997622434.north) -- ++(0,0.8) -| (218694230243.south);
\draw[myarrow] (341903186786.north) -- ++(0,0.8) -| (508997622434.south);
\draw[myarrow] (193704826075.north) -- ++(0,0.8) -| (341903186786.south);
\draw[myarrow] (405958494301.north) -- ++(0,0.8) -| (341903186786.south);
\end{tikzpicture}
\end{adjustbox}
\end{center}
\end{landscape}
\end{document}
