igraph：邊緣不會剪裁到未分割圖形中的頂點

Question

當我更改igraph中的vertex.size時，邊緣不會剪切到頂點，它們會在頂點旁邊結束幾個點/像素。例如：

library(igraph) 
set.seed(13) 
g <- barabasi.game(500, directed = F) 
plot(g, vertex.size = 2, edge.curved = T, vertex.label = NA, edge.arrow.mode = "-", 
layout = layout.fruchterman.reingold) 

看起來它不適用於有向圖，因爲箭頭繪製在邊的末端。

有沒有辦法解決這個問題？

Answer 1

我加了edge.arrow.size它似乎修復了它。

library(igraph) 
set.seed(13) 
g <- barabasi.game(500, directed = F) 
plot(g, vertex.size = 2, edge.curved = T, vertex.label = NA, edge.arrow.mode = "-", 
edge.arrow.size=0.01,layout = layout.fruchterman.reingold) 

即