plotly (version 4.7.1)

export: Export a plotly graph to a static file

Description

Export a plotly graph to a static file

Usage

export(p = last_plot(), file = "plotly.png", selenium = NULL, ...)

Arguments

p

a plotly or ggplot object.

file

a filename. The file type is inferred from the file extension. Valid extensions include 'jpeg' | 'png' | 'webp' | 'svg' | 'pdf'

selenium

used only when p is a WebGL plot or the output format is 'webp' or 'svg'. Should be an object of class "rsClientServer" returned by RSelenium::rsDriver (see examples).

...

if p is non-WebGL and the output file format is jpeg/png/pdf arguments are passed along to webshot::webshot(). Otherwise, they are ignored.

Details

For SVG plots, a screenshot is taken via webshot::webshot(). Since phantomjs (and hence webshot) does not support WebGL, the RSelenium package is used for exporting WebGL plots.

Examples

# NOT RUN {
# The webshot package handles non-WebGL conversion to jpeg/png/pdf
# }
# NOT RUN {
export(plot_ly(economics, x = ~date, y = ~pce))
export(plot_ly(economics, x = ~date, y = ~pce), "plot.pdf")

# svg/webp output or WebGL conversion can be done via RSelenium
if (requireNamespace("RSelenium")) {
 rD <- RSelenium::rsDriver(browser = "chrome")
 export(
   plot_ly(economics, x = ~date, y = ~pce), "plot.svg", rD
 )
 export(
   plot_ly(economics, x = ~date, y = ~pce, z = ~pop), "yay.svg", rD
 )
}

# If you can't get a selenium server running, another option is to
# use Plotly.downloadImage() via htmlwidgets::onRender()...
# Downloading images won't work inside RStudio, but you can set the viewer
# option to NULL to prompt your default web browser
options(viewer = NULL)
plot_ly(economics, x = ~date, y = ~pce, z = ~pop) %>%
  htmlwidgets::onRender(
   "function(el, x) {
     var gd = document.getElementById(el.id); 
     Plotly.downloadImage(gd, {format: 'png', width: 600, height: 400, filename: 'plot'});
   }"
 )
# }

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