Plot half pitch for shots.

[davidfombella]

When you use half size to plot shots , it should be required an scale y reverse... however since it is annotate_pitch previous scale this is not possible,
if you coord_flip x coordinate is ok but y is flipped

my trial
ggplot(goals) +
annotate_pitch(colour = "gray70", fill = "gray90") +
geom_point(aes(x = x, y = y,colour=team,shape=body.part), size = 4) +
theme_pitch()+
coord_flip()+
scale_y_reverse()+
ggtitle("Shotmap", "EPL ")+theme_classic()

[Torvaney]

When you use half size to plot shots , it should be required an scale y reverse

Ah yes, this is correct. I will update the README to reflect this.

if you coord_flip x coordinate is ok but y is flipped

This is weird. From what I can tell, any layers created with geom_rect do not actually get flipped. It may actually be a bug in ggplot2. I think I can workaround by using ggplot2::annotate, but I want to make sure I understand what's going on first.

Thanks for reporting this

[Torvaney]

I've submitted an issue to ggplot2 here.

The workaround for geom_rect -> annotate(geom = "rect", ...) works fine, but getting the pitch circles to behave is a bit tricker. I think the options are as follows:

• Submit PR/fix to ggplot2 so that it scales annotation_custom objects correctly
  • The ideal solution but probably also the most work involved
• Mark pitch circles with annotate("point", pch = 21, ...)
  • Circles won't really scale properly with plot image size
• Mark pitch circles with geom_path(data = circle_data(...), ...)
  • Circularity not guaranteed (they will generally look oblong)

---

In the meantime, the easiest way to work around this is probably to alter your input data (which is a bit grim, I know).

goals %>%
  ggplot(aes(x = x, y = 100 - y), ...) +
  # ...