在闪亮的应用程序中截取特定情节的屏幕截图

Question

如何在闪亮的应用程序中截取特定图表而不是整个图表的屏幕截图UI？

library(shiny)
library(shinyscreenshot)
library(plotly)

ui <- fluidPage(
  plotlyOutput("plot"),
  actionButton("go", "Take a screenshot")
)

server <- function(input, output) {
  output$plot<-renderPlotly({
    
    fig <- plot_ly(
      x = c("giraffes", "orangutans", "monkeys"),
      y = c(20, 14, NA),
      name = "SF Zoo",
      type = "bar"
    )
    
    fig
  })
  observeEvent(input$go, {
    screenshot()
  })
}

shinyApp(ui, server)

Answer 1

您可以使用 selector 参数：

By default, the entire page is captured. If you'd like to capture a specific part of the screen, you can use the selector parameter to specify a CSS selector. For example, if you have a plot with ID myplot then you can use screenshot(selector="#myplot")

在这种情况下：

screenshot(selector="#plot")

在闪亮的应用程序中截取特定情节的屏幕截图

Take screenshot of specific plot in a shiny app

r

shiny

shinyscreenshot