[英]How to save a highchart to PNG image in R?
如何在 R 中将 highchart(type = 'organization')导出为 PNG 图像?
这是一个例子:
library(highcharter)
library(tidyverse)
highchart() %>%
hc_chart(type = 'organization') %>%
hc_add_series(
data = list(
list(from = 'A', to = 'A1'),
list(from = 'A', to = 'A2')
))
我尝试如下,但导出的文件为空:
library(highcharter)
library(tidyverse)
png("org.png")
highchart() %>%
hc_chart(type = 'organization') %>%
hc_add_series(
data = list(
list(from = 'A', to = 'A1'),
list(from = 'A', to = 'A2')
))
dev.off()
您可以使用 package webshot来实现这一点。 在R 中阅读更多关于导出 highchart 小部件的信息。
编辑:答案适用于使用webshot2的 OP,意在替换 webshot。
library(highcharter)
library(tidyverse)
library(webshot)
org <- highchart() %>%
hc_chart(type = 'organization') %>%
hc_add_series(
data = list(
list(from = 'A', to = 'A1'),
list(from = 'A', to = 'A2')
))
htmlwidgets::saveWidget(widget = org, file = "org.html")
getwd()
webshot(url = "org.html",
file = "org.png",
delay=3) # delay will ensure that the whole plot appears in the image
dev.off()
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