我想将我的绘图放入纸张内，但纸张顶部留有大量空间（与底部相比）。我该如何放入绘图？
这是我的代码（非常简单因为我刚刚开始使用 Tikz）：
\documentclass{article}
\usepackage[utf8]{inputenc}
\title{Sigma demostration draw}
\author{}
\date{February 2021}
\usepackage{tikz}
\usetikzlibrary{positioning}
\usetikzlibrary{arrows,automata}
\begin{document}
\maketitle
\clearpage
\begin{tikzpicture}
% flecha
[->,>=stealth',shorten >=1pt,auto,node distance=1.7cm,font=\scriptsize]
% estilo circulo
\tikzstyle{circulo}=[circle,fill=cyan,draw=none,text=black,draw=cyan!40, fill=cyan!10, very thick, minimum size=6mm]
% estilo cuadrado
\tikzstyle{cuadrado}=[rectangle,fill=blue,draw=none,text=black,draw=blue!40, fill=blue!10, very thick, minimum size=6mm]
% G1
\node[cuadrado] (g1_1) {$y_m$};
\node[circulo] (g1_2) [left of=g1_1] {$y_m$};
\node[circulo] (g1_3) [right of=g1_1] {$\neg y_m$};
\node[cuadrado] (g1_4) [above left of=g1_2] {$y_m$};
\node[cuadrado] (g1_6) [above right of=g1_3] {$\neg y_m$};
\node[cuadrado] (g1_8) [above right of=g1_2] {$y_m^k$};
\node[cuadrado] (g1_9) [above left of=g1_3] {$\neg y_m^k$};
\node[cuadrado] (g1_10) [above of=g1_8] {$y_m^1$};
\node[cuadrado] (g1_11) [above of=g1_9] {$\neg y_m^1$};
% G2
\node[cuadrado] (g2_1) [above = 3.5cm of g1_1] {$y_1$};
\node[circulo] (g2_2) [left of=g2_1] {$y_1$};
\node[circulo] (g2_3) [right of=g2_1] {$\neg y_1$};
\node[cuadrado] (g2_4) [above left of=g2_2] {$y_1$};
\node[cuadrado] (g2_6) [above right of=g2_3] {$\neg y_1$};
\node[cuadrado] (g2_8) [above right of=g2_2] {$y_1^k$};
\node[cuadrado] (g2_9) [above left of=g2_3] {$\neg y_1^k$};
\node[cuadrado] (g2_10) [above of=g2_8] {$y_1^1$};
\node[cuadrado] (g2_11) [above of=g2_9] {$\neg y_1^1$};
% G3
\node[cuadrado] (g3_1) [above = 8.5cm of g1_1] {$x_n$};
\node[circulo] (g3_2) [left of=g3_1] {$x_n$};
\node[circulo] (g3_3) [right of=g3_1] {$\neg x_n$};
\node[cuadrado] (g3_4) [above left of=g3_2] {$x_n$};
\node[cuadrado] (g3_5) [below left of=g3_2] {$x_n$};
\node[cuadrado] (g3_6) [above right of=g3_3] {$\neg x_n$};
\node[cuadrado] (g3_7) [below right of=g3_3] {$\neg x_n$};
\node[cuadrado] (g3_8) [above right of=g3_2] {$x_m^k$};
\node[cuadrado] (g3_9) [above left of=g3_3] {$\neg x_m^k$};
\node[cuadrado] (g3_10) [above of=g3_8] {$x_m^1$};
\node[cuadrado] (g3_11) [above of=g3_9] {$\neg x_m^1$};
% G4
\node[cuadrado] (g4_1) [above = 13cm of g1_1] {$x_1$};
\node[circulo] (g4_2) [left of=g4_1] {$x_1$};
\node[circulo] (g4_3) [right of=g4_1] {$\neg x_1$};
\node[cuadrado] (g4_4) [above left of=g4_2] {$x_1$};
\node[cuadrado] (g4_5) [below left of=g4_2] {$x_1$};
\node[cuadrado] (g4_6) [above right of=g4_3] {$\neg x_1$};
\node[cuadrado] (g4_7) [below right of=g4_3] {$\neg x_1$};
\node[cuadrado] (g4_8) [above right of=g4_2] {$x_1^k$};
\node[cuadrado] (g4_9) [above left of=g4_3] {$\neg x_1^k$};
\node[cuadrado] (g4_10) [above of=g4_8] {$x_1^1$};
\node[cuadrado] (g4_11) [above of=g4_9] {$\neg x_1^1$};
% G10
\node[circulo] (g10_1) [below = 1cm of g1_1] {$u_0$};
\node[cuadrado] (g10_2) [below left of=g10_1] {$u_0$};
\node[cuadrado] (g10_3) [below right of=g10_1] {$u_0 \_ u_0^,$};
\node[circulo] (g10_4) [below of=g10_1] {$u_0^,$};
\node[cuadrado] (g10_5) [below left of=g10_4] {$u_0^,$};
%\node[cuadrado] (g10_6) [below right of=g10_5] {$z$};
%\node[cuadrado] (g10_7) [left of=g10_6] {$z$};
%\node[cuadrado] (g10_8) [above of=g10_6] {$u_0^,$};
%\node[cuadrado] (g10_9) [above right of=g10_6] {$u_0^,$};
%\node[cuadrado] (g10_10) [right of=g10_6] {$u_0^,$};
\path
% G1
(g1_2) edge [below] node {k+1} (g1_1)
edge [] node {n-1} (g1_4)
edge [] node {1} (g1_8)
edge [bend left] node {1} (g1_10)
(g1_3) edge [below] node {k+1} (g1_1)
edge [] node {n-1} (g1_6)
edge [] node {1} (g1_9)
edge [bend right] node {1} (g1_11)
% G2
(g2_2) edge [below] node {k+1} (g2_1)
edge [] node {n-1} (g2_4)
edge [] node {1} (g2_8)
edge [bend left] node {1} (g2_10)
(g2_3) edge [below] node {k+1} (g2_1)
edge [] node {n-1} (g2_6)
edge [] node {1} (g2_9)
edge [bend right] node {1} (g2_11)
% G3
(g3_2) edge [below] node {k+1} (g3_1)
edge [] node {n-1} (g3_4)
edge [] node {1} (g3_5)
edge [] node {1} (g3_8)
edge [bend left] node {1} (g3_10)
(g3_3) edge [below] node {k+1} (g3_1)
edge [] node {n-1} (g3_6)
edge [] node {1} (g3_7)
edge [] node {1} (g3_9)
edge [bend right] node {1} (g3_11)
% G4
(g4_2) edge [below] node {k+1} (g4_1)
edge [] node {n-1} (g4_4)
edge [] node {1} (g4_5)
edge [] node {1} (g4_8)
edge [bend left] node {1} (g4_10)
(g4_3) edge [below] node {k+1} (g4_1)
edge [] node {n-1} (g4_6)
edge [] node {1} (g4_7)
edge [] node {1} (g4_9)
edge [bend right] node {1} (g4_11)
% G10
(g10_1) edge [] node {k+1} (g10_2)
edge [] node {n} (g10_3)
(g10_4) edge [] node {n+2} (g10_3)
edge [] node {k} (g10_5)
% (g10_5) edge [] node {r-u} (g10_6)
% (g10_7) edge [] node {r} (g10_6)
% (g10_8) edge [] node {r-u} (g10_6)
% (g10_9) edge [] node {r-u} (g10_6)
% (g10_10) edge [] node {r-u} (g10_6);
\end{tikzpicture}
\end{document}