我可以像这样通过 geom_tile()
绘制带有标签的 geom_text()
:
library(ggplot2)
df <- structure(list(x = c(1L,2L,3L,4L,5L,6L,7L,8L,1L,8L),y = c("A","A","B","B"),z = c("stuff","not_stuff","stuff","not_stuff")),class = "data.frame",row.names = c(NA,-16L))
plt <- ggplot2::ggplot(data = df,mapping = ggplot2::aes(x = x,y = y,fill = z)) +
ggplot2::geom_tile(height = ifelse(z == "stuff",0.4,0.1)) +
ggplot2::geom_text(ggplot2::aes(label = ifelse(z == "stuff",z,"")))
plt
但我想用这样的箭头(弯曲或其他方式)将标签从瓷砖本身偏移:
(抱歉画得不好。)我希望每个图块的标签都带有箭头,就像我在上图中描绘的一个例子一样。
我不知道该怎么做,而且我真的无法在其他地方找到答案。
任何帮助和/或指针将不胜感激