[英]Showing plot using observeEvent in Shiny app
I'm using leaflet in my shiny app and I want the app to open a window including a plot once the user clicks on the map. 我寫了下面的代碼:
library(shiny)
library(leaflet)
library(plotly)
library(dplyr)
ui <- fluidPage(
leafletOutput("mymap"),
)
server <- function(input, output, session) {
points <- eventReactive(input$recalc, {
cbind(rnorm(40) * 2 + 13, rnorm(40) + 48)
}, ignoreNULL = FALSE)
output$mymap <- renderLeaflet({
leaflet() %>%
addProviderTiles(providers$Stamen.TonerLite,
options = providerTileOptions(noWrap = TRUE)
) %>%
addMarkers(data = points())
})
observeEvent(input$mymap_marker_click,{
df <- data.frame(x = 1:10, y = 1:10)
plt <- ggplot(df, aes(x,y)) + geom_line()
pltly <- ggplotly(plt)
showModal(modalDialog(
title = "Important message", size = "l",
pltly ))
})
}
shinyApp(ui, server)
這段代碼可以完成這項工作,但它顯示 plot 非常壓縮? 如果您將 window 的邊界稍微向左或向右拖動,那么它將被修復,但我希望它能夠工作而無需為修復情節而這樣做! 有誰知道更好的方法嗎?
您可以使用renderPlotly
和plotlyOutput
來制作和顯示 plot。
output$my_plotly <- renderPlotly({
df <- data.frame(x = 1:10, y = 1:10)
plt <- ggplot(df, aes(x,y)) + geom_line()
ggplotly(plt)
})
observeEvent(input$mymap_marker_click,{
showModal(modalDialog(plotlyOutput("my_plotly")))
})
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