ggtern (version 1.0.6.1)

theme_arrowbaseline: Set The Ternary Arrow Baseline

Description

The ternary arrows can have an offset unit value (see axis.tern.arrowsep), however, it is convenient to set this relative to either the axis, ticks or axis ticklabels (since the latter two can be hidden / removed.). This function permits this to be set

Usage

theme_arrowbaseline(x = "labels")

Arguments

x

a character ('axis','ticks' or 'labels') or numeric (rounded to 0, 1 or 2) value to determine the relative location (labels is default) if a character is provided, and it is not one of the above, an error will be thrown.

Examples

#Create plot object
plot <- ggtern(data=data.frame(x=1,y=1,z=1),mapping=aes(x,y,z)) +
  geom_point() + theme_rgbw() +
  tern_limits(labels=c(10,20,"","","","","",80,90,100),
             breaks=seq(0.1,1,by=0.1)) +
  theme(axis.tern.arrowstart=0.25,axis.tern.arrowfinish=0.75) +
  theme_ticksoutside() +
  #to illustrate the actual origin, set arrowsep to zero
  theme(axis.tern.arrowsep=unit(0,"npc"))

 #Default behaviour
 plot + theme_arrowbaseline(0)
 ##Alternatives, Uncomment below
 #plot + theme_arrowbaseline(1)
 #plot + theme_arrowbaseline(2)
 #plot + theme_arrowbaseline("axis")
 #plot + theme_arrowbaseline("ticks")
 #plot + theme_arrowbaseline("labels")