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Plot phylopic images to compare raptor size in Jurassic Park to reality
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library(tidyverse); library(rvest); | |
library(png) | |
#Phylopic images here: | |
https://github.com/ryantimpe/ChartOfTheDay/tree/master/data | |
#Text wrapping function --- | |
wrapper <- function(x, ...) {paste(strwrap(x, ...), collapse = "\n")} | |
#Scale image into feet | |
process_png_y <- function(pic, feet=6){ | |
dat <- pic[,,4] %>% | |
as.data.frame() %>% | |
mutate(y = n()-row_number()) %>% | |
gather(x, value, 1:(ncol(.)-1)) %>% | |
mutate(x = as.numeric(str_remove_all(x, "V"))) %>% | |
filter(value > 0) | |
xscale <- (max(dat$y)/max(dat$x))^(-1) | |
dat2 <- dat %>% | |
#Rescale to 1ft == 50px | |
mutate(ys = floor(y/max(y)*feet*50), xs = floor(x/max(x)*feet*50*xscale)) %>% | |
group_by(x = xs, y = ys) %>% | |
summarize(value = max(value)) %>% | |
ungroup() | |
return(dat2) | |
} | |
fact <- "Actual velociraptors were the size of turkeys" | |
fb1 <- tribble( | |
~Source, ~Animal, ~Height, | |
"Human size", "Homo", 6, | |
"Jurassic Park", "Velociraptor", 4.75, | |
"Turkey-size", "Meleagris", 2.5, | |
"Turkey-size", "Velociraptor", 2 | |
) %>% | |
mutate(Pic = purrr::map2(Animal, Height, function(ani, hght){ | |
readPNG(paste0("data/", ani, ".png")) %>% | |
process_png_y(hght) | |
})) %>% | |
unnest(Pic) %>% | |
group_by(Source, Animal) %>% | |
mutate(x = ifelse(Animal == "Velociraptor", -x, x), | |
x = ifelse(Source == "Turkey-size", x + floor(median(x)/4), x)) %>% | |
ungroup() | |
# Universals ---- | |
chart_footer_bonus <- paste0("Turkey Triva | |
@ Ryan Timpe .com") | |
#Colors | |
trk.col.orange <- c("#ff6141") | |
trk.col.red <- c("#8B0000", "#ff4040") | |
trk.col.gold <- c("#D4AF37", "#CFB53B", "#C5B358") | |
trk.col.blue <- c("#00436b") | |
trk.col.ltblue <- c("#5384ff") | |
trk.col.bkgrnd <- c("#fcedcc") | |
#Chart theme | |
trk_chart_theme <- theme( | |
panel.grid = element_blank(), | |
strip.background = element_rect(fill = "#00436b"), | |
strip.text = element_text(color = "white", face = "bold"), | |
plot.background = element_rect(fill = "#fcedcc"), | |
plot.title = element_text(size = 14, face = "bold"), | |
plot.subtitle = element_text(size = 10), | |
plot.caption = element_text(size = 8), | |
panel.background = element_rect(fill = "#fcedcc"), | |
legend.position = "bottom" | |
) | |
fb1 %>% | |
ggplot(aes(x=x, y=y, fill = Source)) + | |
geom_raster() + | |
scale_fill_manual(values = c("Human size" = trk.col.blue, "Turkey-size" = trk.col.gold[2], | |
"Jurassic Park" = trk.col.red[1])) + | |
scale_y_continuous(name = "Height (Ft)", breaks = seq(50, 300, by=50), labels = 1:6) + | |
coord_fixed() + | |
labs(title = fact, | |
subtitle = wrapper("Hollywood took some liberties with human-sized velociraptors in Jurassic Park... | |
and they plucked off the feathers.", 85), | |
caption = paste0("Images: phylopic.org\n", chart_footer_bonus)) + | |
theme_minimal() + | |
trk_chart_theme + | |
theme( | |
axis.text.x = element_blank(), | |
axis.title.x = element_blank(), | |
axis.text.y = element_text(size = 12, face = 'bold'), | |
axis.title.y = element_text(size = 14, face = "bold") | |
) |
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