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Use esquisse as a Shiny module

{esquisse} is built with Shiny modules (see thisarticle forreference), so you can use {esquisse} directly into a Shiny application:

library(esquisse)library(shiny)library(ggplot2)ui<-fluidPage(titlePanel("Use esquisse as a Shiny module"),sidebarLayout(sidebarPanel(radioButtons(inputId ="data",label ="Select data to use:",choices =c("mpg","diamonds","economics")      )    ),mainPanel(tabsetPanel(tabPanel(title ="esquisse",esquisse_ui(id ="esquisse",header =FALSE# dont display gadget title          )        ),tabPanel(title ="output",          tags$b("Code:"),verbatimTextOutput("code"),          tags$b("Filters:"),verbatimTextOutput("filters"),          tags$b("Data:"),verbatimTextOutput("data")        )      )    )  ))server<-function(input, output, session) {  data_r<-reactiveValues(data = iris,name ="iris")observe({    data_r$data<-get(input$data)    data_r$name<- input$data  })  results<-esquisse_server(id ="esquisse",data_rv = data_r  )  output$code<-renderPrint({    results$code_plot  })  output$filters<-renderPrint({    results$code_filters  })  output$data<-renderPrint({str(results$data)  })}shinyApp(ui, server)

Result looks like :

The output of the module is areactiveValues with 3slots :

code_plot : code to generate plot.
code_filters : a list of length two with code toreproduce filters.
data :data.frame used in plot (withfilters applied).

Module for saving a ggplot object

This module allow to save aggplot object in variousformat and to resize it before:

You can call the module from server to display it in a modal window(it’s also possible to display it directly in your UI):

function(input, output, session) {observeEvent(input$save, {# actionButton to trigger modalsave_ggplot_modal("ID","Save plot")# launch modal  })save_ggplot_server("ID", rv)# rv is a reactiValues with a slot 'plot'}

See?"save-ggplot-module" for complete example.

Module to render a plot and add export options

Add a menu to directly export plot, you can also launch module abovefor more controls (height, width, filename) by clicking “Moreoptions”:

library(shiny)library(ggplot2)library(esquisse)ui<-fluidPage(  tags$h2("ggplot output"),selectInput("var","Variable:",names(economics)[-1]),ggplot_output("MYID",width ="600px"))server<-function(input, output, session) {render_ggplot("MYID", {ggplot(economics)+geom_line(aes(date,!!sym(input$var)))+theme_minimal()+labs(title ="A cool chart made with ggplot2",subtitle ="that you can export in various format"      )  })}if (interactive())shinyApp(ui, server)

Input widgets

The drag-and-drop widget along with the button to select a geom andthe color/palette picker are exported:

dragulaInput

ui<-fluidPage(  tags$h2("Demo dragulaInput"),  tags$br(),dragulaInput(inputId ="dad",sourceLabel ="Source",targetsLabels =c("Target 1","Target 2"),choices =names(iris),width ="400px"  ),verbatimTextOutput(outputId ="result"))server<-function(input, output, session) {  output$result<-renderPrint(str(input$dad))}shinyApp(ui = ui,server = server)

dropInput

The widget used to select a geom inesquisser addin. Youcan use images or icons for example:

ui<-fluidPage(  tags$h2("Drop Input"),dropInput(inputId ="mydrop",choicesNames =tagList(list(icon("home"),style ="width: 100px;"),list(icon("flash"),style ="width: 100px;"),list(icon("cogs"),style ="width: 100px;"),list(icon("fire"),style ="width: 100px;"),list(icon("users"),style ="width: 100px;"),list(icon("info"),style ="width: 100px;")    ),choicesValues =c("home","flash","cogs","fire","users","info"),dropWidth ="220px"  ),verbatimTextOutput(outputId ="res"))server<-function(input, output, session) {  output$res<-renderPrint({    input$mydrop  })}shinyApp(ui, server)

colorPicker

A select menu to choose one or several colors:

ui<-fluidPage(  tags$h2("Color Picker"),colorPicker(inputId ="col",label ="Choose a color:",choices = scales::brewer_pal(palette ="Dark2")(8),textColor ="white"  ),verbatimTextOutput(outputId ="res"))server<-function(input, output, session) {  output$res<-renderPrint({    input$col  })}shinyApp(ui, server)

palettePicker

A select menu to choose a color palette:

library(scales)ui<-fluidPage(  tags$h2("Palette Picker"),palettePicker(inputId ="pal",label ="Choose a palette",choices =list("Viridis"=list("viridis"=viridis_pal(option ="viridis")(10),"magma"=viridis_pal(option ="magma")(10),"inferno"=viridis_pal(option ="inferno")(10),"plasma"=viridis_pal(option ="plasma")(10),"cividis"=viridis_pal(option ="cividis")(10)      ),"Brewer"=list("Blues"=brewer_pal(palette ="Blues")(8),"Reds"=brewer_pal(palette ="Reds")(8),"Paired"=brewer_pal(palette ="Paired")(8),"Set1"=brewer_pal(palette ="Set1")(8)      )    ),textColor =c(rep("white",5),rep("black",4)    )  ),verbatimTextOutput(outputId ="res"))server<-function(input, output, session) {  output$res<-renderPrint({    input$pal  })}shinyApp(ui, server)