remove_figure: Remove a figure
In devOpifex/g2r: Interactive Grammar of Graphics

Remove a figure from the plot.

1	remove_figure(g, index)

`g`	An object of class `g2r` or `g2Proxy` as returned by `g2()` or `g2_proxy()`.
`index`	Index of figure to remove. Either the numeric index of figure (layer number in order it was added to the visualisation), or the `id` of the figure as set by `config()` (see examples).

g <- g2(mtcars, asp(qsec, wt)) %>%
  fig_point(config(id = "myPoints")) %>%
  fig_point(asp(y = drat))

# all figures
g

# remove figure
remove_figure(g, "myPoints")

library(shiny)

df <- data.frame(
  x = 1:100,
  y = runif(100),
  z = runif(100)
)

ui <- fluidPage(
  g2Output("plot"),
  actionButton("rm", "Randomly remove a figure")
)

server <- function(input, output) {
  output$plot <- renderG2({
    g2(df, asp(x, y)) %>%
      fig_point() %>%
      fig_line(asp(y = z))
  })

  observeEvent(input$rm, {
    g2_proxy("plot") %>%
      remove_figure(sample(1:2, 1))
  })
}

if (interactive()) {
  shinyApp(ui, server)
}