Results 4 issues of Matthew Henderson

The current behaviour is to not rotate if $vp is NULL. But even that seems wrong. We shuold create the viewport and then rotate. Also testing for $vp being NULL...

Would the approach of Artpack work better? https://meghansaha.github.io/artpack/ _“data-centric” means that the package focuses on providing direct data outputs to the user, as opposed to providing [geom_fxs()](https://ggplot2.tidyverse.org/reference/#geoms) like most supplemental...