rAmCharts-shinymodules: Shiny module to export rAmCharts graphics on server-side

In rAmCharts: JavaScript Charts Tool

Shiny module to export rAmCharts graphics on server-side

Description

This function need the base64enc package to save image.

Usage

rAmChartsExportServerUI(id)

rAmChartsExportServer(
  input,
  output,
  session,
  list_am_graph,
  path = shiny::reactive(tempdir()),
  mode = "single",
  progress = T,
  message = "Calculation in progress",
  detail = "This may take a while..."
)

Arguments

id	character, used to specify namesapce, see shiny::NS
input	standard, shiny input
output	standard, shiny output
session	standard, shiny session
list_am_graph	named list, reactive expression with all amCharts to export "graph"rAmCharts object to export "name"character, name of file, with ".jpg" extension "width"Optionnal, character. Linked to amChartsOutput "height"Optionnal, character. Linked to amChartsOutput "type"Optionnal, character. Linked to amChartsOutput
path	character, directory. tempdir() by Defaut
mode	character, 'single' : graphics are rendered and saved one by one. 'multiple' all at same time
progress	boolean, set a progress bar or not ?
message	character, if progress, message. Defaut to "Calculation in progress"
detail	character, if progress, detail. Defaut to "This may take a while...'

Value

a reactive expression

Examples

## Not run: 

# ui
rAmChartsExportServerUI("export_server_graphs")

# server

mult_amgraph <- reactive({
 if(input$goSave > 0){
   isolate({
     list(
       list(graph = amPie(data = data_pie), name = "pie.jpg", height = "200px", width = "300px"),
       list(graph = amBarplot(x = "country", y = "visits", data = data_bar, main = "example") %>%
         setExport(), name = "bar.jpg", height = "600px")
     )
   })
 } else {
   NULL
 }
})


callModule(rAmChartsExportServer, "export_server_graphs", mult_amgraph, 
          reactive("/home/benoit/amchart_export"))


## End(Not run)

rAmCharts documentation built on Sept. 30, 2022, 5:06 p.m.