dq_render_svg: Render ggplot2 figure as svg

In daqana/dqshiny: Enhance Shiny Apps with Customizable Modules

Description

Returns ggplot2 svg image for shiny::imageOutput

Usage

dq_render_svg(
  gg,
  path = NULL,
  width = 1200,
  height = 500,
  alt = "",
  pdf = FALSE,
  png = FALSE,
  delete_file = TRUE
)

Arguments

gg	reactive or non-reactive ggplot2 object
path	directory where images are stored (optional, default = NULL, creates tmp files)
width	plot width (optional, default = 1200)
height	plot height (optional, default = 500)
alt	alternative image title (optional, default = "")
pdf	boolean variable controlling if pdf output is generated (optional, default = FALSE)
png	boolean variable controlling if png output is generated (optional, default = FALSE)
delete_file	parameter for shiny::renderImage function

Value

list containing ggplot2 figure information

Author(s)

david.breuer

Examples

## Only run examples in interactive R sessions
if (interactive()) {

library(shiny)
shinyApp(
  ui = fluidPage(
    selectInput("select","Number of bars", choices=c(4,5,6)),
    br(),
    imageOutput("plot")
  ),
  server = function(input, output) {
    gf <- reactive({L <- as.integer(input$select)
                    gg <- ggplot2::ggplot(data=data.frame(x=seq(L), y=seq(L)),
                      ggplot2::aes(x=x, y=y)) + ggplot2::geom_bar(stat = "identity")
    })
    output$plot <- dq_render_svg(gf)
  }
)

}

daqana/dqshiny documentation built on Sept. 1, 2020, 4:31 p.m.