grVizToPNG {vtree}

Export an htmlwidget object into a PNG file

Description

Export an htmlwidget object (produced by DiagrammerR::grViz) into a PNG file

Usage

grVizToPNG(g, width = NULL, height = NULL, folder = ".", filename)

Arguments

g

an object produced by the grViz function from the DiagrammmeR package

width

the width in pixels of the bitmap

height

the height in pixels of the bitmap

folder

path to folder where the PNG file should stored

filename

an optional filename. If not provided, the filename will be derived from the name of the argument of g.

Details

First the grViz object is exported to an SVG file (using DiagrammeRsvg::export_svg). Then the SVG file is converted to a bitmap (using rsvg::rsvg). Then the bitmap is exported as a PNG file (using png::writePNG). Note that the SVG file and the PNG file will be named using the name of the g parameter

Value

Returns the full path of the PNG file.

Note

In addition to the DiagrammmeR package, the following packages are used: DiagrammeRsvg, rsvg

Author(s)

Nick Barrowman