Get R Markdown figure dimensions in pixels

In an R Markdown document, figure dimensions are normally specified in inches; these are translated into pixel dimensions when HTML output is requested and rglwidget is used. These functions reproduce that translation.

figWidth()
figHeight()

Value

When used in an R Markdown document, these functions return the requested current dimensions of figures in pixels. Outside such a document, NULL is returned.

Author

Duncan Murdoch

Examples

# No useful return value outside of R Markdown:
figWidth()
#> [1] 480
figHeight()
#> [1] 480