型: double, デフォルト: 1.0, 最小値: 0.0
1.0
0.0
digraph { quiver -> "0.5" [arrowsize=0.5] quiver -> "1" quiver -> "2" [arrowsize=2] quiver -> "3" [arrowsize=3] }
Graphvizのコードベースで"arrowsize"を検索
"arrowsize"