\documentclass{article}
\usepackage{tikz}
\usetikzlibrary{arrows}
\begin{document}
\begin{tikzpicture}[->,>=stealth',shorten >=1pt,auto,node distance=3.5cm,
thick,main node/.style={rectangle,draw,font=\sffamily\Large\bfseries}]
\node[main node] (C4) {C4};
\node[main node] (IN3M) [left of=C4] {IN3M};
\node[main node] (TDC) [right of=C4] {TDC};
\node[main node] (C5) [above right of=C4] {C5};
\node[main node] (S3M) [right of=C5] {S3M};
\node[main node] (P5) [above right of=C5] {P5};
\node[main node] (C6) [above of=C4] {C6};
\node[main node] (C7) [right of=C6] {C7};
\node[main node] (P7) [above right of=C7] {P7};
\node[main node] (S1M) [right of=C7] {S1M};
\node[main node] (P6) [above of=C6] {P6};
\node[main node] (C1) [below of=C4] {C1};
\node[main node] (C3) [below of=C1] {C3};
\node[main node] (IN1M) [below of=C3] {IN1M};
\node[main node] (IN1S2) [below of=IN1M] {IN1S2};
\node[main node] (IN1XS2) [below of=IN1S2] {IN1XS2};
\node[main node] (IN1XS3) [right of=IN1XS2] {IN1XS3};
\node[main node] (IN1S1) [left of=IN1S2] {IN1S1};
\node[main node] (IN1XS1) [below of=IN1S1] {IN1XS1};
\node[main node] (IN1S3) [right of=IN1S2] {IN1S3};
\path[every node/.style={font=\sffamily\small}]
(C4) edge node [left] {EW} (C6)
edge node [left] {EW} (C1)
edge node [above] {EW} (IN3M)
edge node [right] {EW} (C5)
edge node [above] {EW} (TDC)
(C6) edge node [above] {EW} (C7)
(C6) edge node [left] {EW} (P6)
(C7) edge node [above] {EW} (S1M)
edge node [left] {EW} (P7);
\end{tikzpicture}
\end{document}
答案1
像这样？
在节点定位中使用库positioning。通过它，节点之间的距离由确定node distance。除此之外，这个库还用于arrows.meta箭头、calc计算某些节点的位置、chains在链中定位节点、quotes标记边（存在边的地方）以及shapes.multipart密集连接的节点。
下面的 MWE 并不完整。我留给你的缺失线条的绘制，也是为了检查节点中的文本是否正确。我希望它能成为一个好的起点...
\documentclass{article}
\usepackage[margin=20mm]{geometry}
\usepackage{tikz}
\usetikzlibrary{arrows.meta, calc, chains, positioning, quotes, shapes.multipart}
\begin{document}
\begin{tikzpicture}[
node distance = 7mm and 9mm,
start chain = going below,
every edge/.style = {draw, semithick, Stealth-Stealth,
shorten <=1pt, shorten >=1pt,
font=\footnotesize\sffamily,
inner ysep=1pt, auto},
every label/.append style = {align=center,
font=\sffamily\linespread{0.84}\selectfont},
box/.style = {rectangle, draw,
fill=#1,
minimum width=12mm, inner sep= 2mm, outer sep=0mm,
font=\small\bfseries\sffamily,
on chain},
mpx/.style args = {#1/#2}{% multi part box
rectangle split, draw,
rectangle split parts=#1,
fill=green!#2,
minimum width=12mm, inner sep= 2mm, outer sep=0mm,
font=\small\bfseries\sffamily,
on chain}
]
% column 1
\node (n11) [mpx=3/30] {\nodepart{one} S2X51
\nodepart{two} S2X52
\nodepart{three} S2X53};
\node (n12) [mpx=2/30] {\nodepart{one} S2X54
\nodepart{two} S2X55};
\node (n13) [mpx=2/30] {\nodepart{one} S2X56
\nodepart{two} S2X57};
\node (n14) [box=green!30] {S2X57};
\coordinate[on chain] (n15);
\node (n16) [mpx=3/30,dashed]
{\nodepart{one} A2SX1
\nodepart{two} A2SX2
\nodepart{three} A2SX3};
% column 2
\node (n21) [box=green!30,right=of n11] {S2S1};
\node (n22) [box=green!30,right=of n12] {S2S2};
\node (n23) [box=green!30,right=of n13] {S2S3};
\node (n24) [box=green!30,right=of n14] {S2S4};
\node (n25) [mpx=3/30,dashed, right=of n16]
{\nodepart{one} A2S1
\nodepart{two} A2S2
\nodepart{three} A2S3};
\node (n26) [mpx=2/60] {\nodepart{one} N251
\nodepart{two} N252};
% column 3
\node (n31) [box=green!30,right=of $(n22.east)!0.5!(n23.east)$] {S2M};
\node (n32) [box=green!60,right=of n15 -| n24.east] {IN3M};
\node (n33) [box=green!30,dashed, right=of n25] {A2M};
\node (n34) [box=green!60,right=of n26] {IN2M};
% column 4: main column
\node (n41) [box=blue!30,above right=of n11.north -| n31.east] {P6};
\node (n42) [box=orange!30, right=of n31] {C6};
\node (n43) [box=orange!30, right=of n32] {C4};
\node (n44) [box=orange!30,right=of $(n33.east)!0.5!(n34.east)$] {C1};
\node (n45) [box=orange!30] {C3};
\node (n46) [box=green!60] {IN1M};
\node (n47) [box=green!60] {IN1S2};
%
\node (n48) [box=green!60,below left =of n47.south east] {IN1XS2};
\node (n49) [box=green!60,below right=of n47.south west] {IN1XS3};
% column 5
\node (n51) [box=orange!30,right=of n42] {C7};
\node (n52) [box=orange!30,above right=of n43] {C5};
\node (n53) [box=orange!30,right=of n44] {C2};
% column 6
\node (n61) [box=blue!30,right=of n41 -| n51.east] {P7};
\node (n62) [box=green!30,right=of n51] {S1M};
\node (n63) [box=green!30,right=of n52] {S3M};
\node (n64) [box=green!30,dashed, right=of n53] {A1M};
% column 7
\node (n71) [box=yellow!50,
label=above:{TDC: Theater\\ Distribution\\ Center},
right=of n43 -| n64.east] {TDC};
\node (n72) [mpx=2/30,dashed,right=of n64]
{\nodepart{one} A1S1
\nodepart{two} A1S2};
% column 8
\node (n81) [box=blue!30,
above right=of n63 -| n71.east] {PS};
\node (n82) [box=blue!30,right=of n71] {PORT};
\node (n83) [box=blue!30] {P1};
% bottom two rows
% column 3'
\node (n491) [box=green!60,left =of n47 -| n34] {IN1S1};
\node (n492) [box=green!60] {IN1XS1};
% column 5'
\node (n493) [box=green!60,right=of n47 -| n53] {IN1S3};
\node (n494) [box=green!60] {IN1XS4};
% lines
\path
% between column 1 and 2
(n11.one east) edge (n21)
(n11.two east) edge (n21)
(n11.three east) edge (n21)
% ...
% between column 2 and 3
(n21) edge (n31)
(n22) edge (n31)
(n23) edge (n31)
(n24) edge (n31)
% ...
% between column 3 and 4
(n31) edge (n42)
% ...
% main column
(n41) edge (n42)
(n42) edge (n43)
(n43) edge (n44)
(n44) edge (n45)
(n45) edge["EV"] (n46)
(n46) edge["EV"] (n47)
%
(n47) edge["EV" '] (n48)
(n47) edge["EV"] (n49)
%
(n47) edge["EV" '] (n491)
(n47) edge["EV"] (n493)
%
(n491) edge["EV" '] (n492)
(n493) edge["EV"] (n494)
;
\end{tikzpicture}
\end{document}
注意：此图非常大，因此我通过添加包来增加文本宽度geometry，同时减小图像中的字体大小以使节点可以更小。