r-cran-gridgraphics - 0.5-1-1 main

Functions to convert a page of plots drawn with the
'graphics' package into identical output drawn with the 'grid' package.
The result looks like the original 'graphics'-based plot, but consists
of 'grid' grobs and viewports that can then be manipulated with
'grid' functions (e.g., edit grobs and revisit viewports).