ggplotly does not respect the labels argument in ggplot2:scale_fill_manual

ggplotly does not respect the labels argument in ggplot2:scale_fill_manual.

library(tidyverse)

plot_data <- ggplot2::diamonds %>%
  mutate(cut = stringr::str_to_sentence(cut)) %>%
  group_by(cut, clarity) %>%
  summarise(average_price = mean(price)) %>%
  mutate(average_price = round(average_price / 1000, 1)) %>%
  ungroup()

plot <- ggplot(data = plot_data, aes(average_price, cut, fill = clarity)) + 
  geom_col() +
  coord_flip() +
  scale_fill_manual(values = viridis::viridis(8), labels = LETTERS[1:8])

plot

plotly::ggplotly(plot)

首先使用 ggplotly 运行提供的 R 示例，并将其图例标签与 ggplot2 图进行比较。跟踪针对 scale_fill_manual 的 ggplotly 转换入口点，并验证 labels 参数的处理方式；当转换后的图以 LETTERS[1:8] 显示填充标签时，即表示完成。