I am making a map plot, where I want to put a small text label inside every state. My current problem is that the text goes outside the state limits, so it doesn't look nice:
I tried using mean, median, centroids and so on.
What I want is every text to be completely inside or outside the polygon , like here: 
(image from http://www.businessinsider.com/map-what-100-is-actually-worth-in-your-state-2015-7?IR=T)
I use the following code to generate my picture:
library(maps)
library(dplyr)
library(ggplot2)
#data
mapbase <- map_data("state.vbm")
data(state.vbm.center)
df <- state.vbm.center %>% as.data.frame() %>%
mutate(region = unique(mapbase$region) ) %>% full_join(mapbase)
#actual plotting
cnames <- aggregate(cbind(long, lat) ~ region, data=df, FUN=median)
gmap<-
ggplot()+
geom_polygon( data=df2,
aes(long, lat, group = region, fill = somevalue,alpha=0.3)) +
coord_fixed() +
theme_void() +
geom_text(data=cnames, aes( fontface=2 ,cnames$long, cnames$lat , label = "text"
), color= "black" ,size=3,check_overlap = T, position=position_jitter(width=3, height=3) ) +
scale_fill_gradient(low="red",high="blue")
Thanks so much for you hints!