使用R HighCharter库单击鼠标之后，将其添加到图中

Question

我需要能够在鼠标单击后向图中添加另一个跟踪。我正在使用R的Web Framework Shiny在Web浏览器中显示该图。我想添加的系列是点或任何系列。

我还需要在图上绘制线条。我想单击一个起点，结尾和线路通过点击点。

这就是我到目前为止的。

#############To Update
#if (!require("devtools"))
#install.packages("devtools")
#devtools::install_github("jbkunst/highcharter")
library("shiny")
library("highcharter")
dots<-hc_add_series_scatter(cars$speed, cars$dist)
hc_base <- highchart() %>% 
  hc_xAxis(categories = citytemp$month) %>% 
  hc_add_series(name = "Tokyo", data = citytemp$tokyo) 
ui <- fluidPage(
  h2("Viewer"),
  fluidRow(
    h3(""), highchartOutput("hc_1", width = "100%", height = "800px"),
     h3("Click"), verbatimTextOutput("hc_1_input2")
  )
)
server = function(input, output) {
  output$hc_1 <- renderHighchart({
       hc_base %>% 
          hc_add_theme(hc_theme_ffx())%>%
                 hc_tooltip(backgroundColor="skyblue",crosshairs = TRUE, borderWidth = 5, valueDecimals=2)%>%
                      hc_add_event_series(series="dots", event = "click")
})
output$hc_1_input2 <- renderPrint({input$hc_1_click })
}
shinyApp(ui = ui, server = server)

任何帮助将不胜感激。

Answer 1

这可能是一种方法：

library(shiny)
library(highcharter)

hc_base <- highchart() %>% 
  hc_xAxis(categories = citytemp$month) %>% 
  hc_add_series(name = "Tokyo", data = citytemp$tokyo) 
ui <- fluidPage(
  h2("Viewer"),
  fluidRow(
    h3(""), highchartOutput("hc_1", width = "100%", height = "800px"),
    h3("Click"), verbatimTextOutput("hc_1_input2")
  )
)
server = function(input, output) {
  output$hc_1 <- renderHighchart({
    hc_base %>% 
      hc_add_theme(hc_theme_ffx())%>%
      hc_tooltip(backgroundColor="skyblue",crosshairs = TRUE, borderWidth = 5, valueDecimals=2)%>%
      hc_add_event_point(event = "click")
  })
  observeEvent(input$hc_1_click,{
    output$hc_1 <- renderHighchart({
      hc_base %>% 
        hc_add_theme(hc_theme_ffx())%>%
        hc_tooltip(backgroundColor="skyblue",crosshairs = TRUE, borderWidth = 5, valueDecimals=2)%>%
        hc_add_series_scatter(cars$speed, cars$dist)
    })
  })
  output$hc_1_input2 <- renderPrint({input$hc_1_click })
}
shinyApp(ui = ui, server = server)

希望它有帮助！