Accept numbers in addition to units to *.padding, *.length

[seaaan]

Instead of writing

geom_label_repel(box.padding = unit(0.25, "lines"),
  label.padding = unit(0.25, "lines"), point.padding = unit(1e-06, "lines"),
  label.r = unit(0.15, "lines"),  min.segment.length = unit(0.5, "lines"))

it would be nice to write

geom_label_repel(box.padding = 0.25, label.padding = 0.25, 
  point.padding = 1e-06, label.r = 0.15, min.segment.length = 0.5)

and have it automatically convert those arguments to line units behind the scenes. This would be a useful shorthand, but it should also still accept units in case someone wants to use a non-line unit.

I'd be happy to implement this and submit a pull request if you think it's a good idea. Thanks for this package, I love it!

[slowkow]

Thanks for the great suggestion! Generally, I want to make ggrepel feel like just another ggplot2 function, and I think your suggestion helps. I'd be happy to add you as a contributor if you send a pull request.

Ideally the unit(0.15, "lines") syntax should still work after you pull request. I don't know if that's possible or not. I'd have to poke around the ggplot2 code to see if a similar feature exists over there.

Thanks again!