plotly cannot handle Inf or -Inf when plotting

plotly does not seem to know what to do with values that are Inf or -Inf. The expected behavior (as done by ggplot2) is to map those values to the maximum and minimum values representable in the type when plotting but to not include them in calculations related to ranges, zooming, axis labels, grid lines, etc.

library(dplyr)
library(ggplot2)
# as expected, this extends the line up to limits of the plot
p <- data.frame(x=c(1,1,Inf), y = c(Inf, 1, 1)) %>% ggplot(aes(x=x,y=y)) + geom_line()
p
library(plotly)
# This doesn't plot anything
ggplotly(p)

首先通过 ggplotly(p) 重现提供的 R 示例，并将其对 Inf 和 -Inf 的处理与 ggplot2 进行比较。跟踪该入口点涉及的绘图和范围计算路径；当这些值到达绘图边界，同时不影响范围、缩放、坐标轴标签或网格线时，即可认为完成。