Configuring the size of ggplot chart

[Evan Zamir]

I'm using ggplot along with ShinyGridster and am having trouble figuring out how to properly size my charts. For example, how can I set the output to 1200x800 pixels?

-evan

[Evan Zamir]

Does nobody know how to do this?

[Evan Zamir]

Well, it turned out to be quite easy. Just add some css to plotOutput:

plotOutput("plot",width="1000px",height="600px")

On Tuesday, July 16, 2013 1:20:28 PM UTC-7, Evan Zamir wrote:

[Roy Francis]

This worked for me. The png is generated by ggsave using predefined dimensions.

The figure is displayed in browser using the current session height and width. The figure resizes dynamically with browser

If the figure is saved, the original predefined dimensions are maintained.

#-----------------------------------------------------------------------------------

#Full working script shown

#ui.R

library(shiny)

library(reshape)

library(ggplot2)

shinyUI(pageWithSidebar(

  headerPanel("ggplot figure test"),

  sidebarPanel(),

  mainPanel(imageOutput("figure")

    )))

#server.R

library(datasets)

shinyServer(function(input, output,session) {

  

  

output$figure <- renderImage({

  width  <- session$clientData$output_figure_width

  height <- session$clientData$output_figure_height

  p2 <- ggplot(mtcars, aes(wt, mpg))+ geom_point()

  outfile <- "image.png"

  ggsave(outfile,p2,height=6, width=12,dpi=300)

  list(src = outfile, contentType = 'image/png', width = width, height = width/2, alt = "image")

  

},deleteFile = TRUE)

})

#-----------------------------------------------------------------------------------