[英]How to read a text label in ggraph radial graph
在ggraph
,如果繪圖是徑向的,則無論是否使用repel=T
,標簽都會變得擁擠。
有沒有辦法讓標簽互動或允許旋轉圖形以便閱讀標簽?
library(ggraph)
mtcarsDen <- as.dendrogram(hclust(dist(mtcars[1:4], method='euclidean'),
method='ward.D2'))
ggraph(graph = mtcarsDen, layout = 'dendrogram', repel = TRUE, circular = TRUE,
ratio = 0.5) +
geom_edge_elbow() +
geom_node_text(aes(x = x*1.05, y=y*1.05, filter=leaf,
angle = node_angle(x, y), label = label),
size=3, hjust='outward') +
geom_node_point(aes(filter=leaf)) +
coord_fixed() +
ggforce::theme_no_axes()
您可以像這樣修改角度美學:
ggraph(graph = mtcarsDen, layout = 'dendrogram', repel = TRUE, circular = TRUE,
ratio = 0.5) +
geom_edge_elbow() +
geom_node_text(aes(x = x*1.005, y=y*1.005, filter=leaf,
angle = -((-node_angle(x, y)+90)%%180)+90, label = label),
size=3, hjust='outward') +
geom_node_point(aes(filter=leaf)) +
coord_fixed() +
ggforce::theme_no_axes()
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