单个顶点标签文本的igraph多色 [英] igraph multicolor for a single vertex label text

问题描述

这可能要问的太多了，但是是否可以仅对标签文本的一部分进行着色?例如，我有一个带有2行标签的顶点，我希望第一行使用黑色字体，第二行使用红色字体.有什么可以做的吗?

This might be too much to ask, but is it possible to color only part of the label text? For example, I have a vertex with 2-line label, and I want the first line in black font and the second line in red font. Anything can be done?

非常感谢！！

推荐答案

您可以手动放置标签(如果没有其他方法).

You can put the labels manually (if there is no other way).

library(igraph)
g1 <- graph.atlas(sample(0:1252, 1))

layout1 <- layout.fruchterman.reingold(g1)
plot(g1, layout = layout1)

layout2 <- apply(layout1, 2, function(x) {
  x <- x / (max(x)-min(x))*2
  x <- x - min(x) - 1
})

text(layout2[,1], layout2[,2], pos = 3, labels = letters[1:length(V(g1))], col ="red" )

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