导读

这里记录两个Y叔的绘图方法。可以画emoji的R包emojifont，可以画轮廓的ggimage geom_phylopic函数。

一、emojifont

emoji库：https://emojiterra.com/vegetables/
geom_emoji不支持大写

1 11.25西方感恩节吃火鸡

install.library("emojifont")
library("emojifont")
library("ggplot2")

ggplot() + geom_emoji('turkey', color="steelblue") +
  labs(x="", y="") +
  theme(axis.ticks = element_blank()) +
  theme(axis.text = element_blank()) +
  theme(axis.title = element_blank())

2 玫瑰rose

ggplot() + geom_emoji('rose', color="red") +
  labs(x="", y="") +
  theme(axis.ticks = element_blank()) +
  theme(axis.text = element_blank()) +
  theme(axis.title = element_blank())

3 蘑菇mushroom

ggplot() + geom_emoji('mushroom') +
  labs(x="", y="") +
  theme(axis.ticks = element_blank()) +
  theme(axis.text = element_blank()) +
  theme(axis.title = element_blank())

二、ggimage

1 准备
USA (IA) 镜像 + 翻墙安装ggimage（无依赖）
HONGKONG 镜像 + 翻墙安装rvcheck （ggimage依赖包）
GUANGZHOU 镜像安装magick （ggimage依赖包）

2 耗子尾汁 rat tail solution

library("magick")
library("rvcheck")
library("ggimage")

options(phylopic_width=128) 

mouse = 'Mus musculus'
id = phylopic_uid(mouse)

d = data.frame(x=0:1, y=0:1)
ggplot(d, aes(x=x, y=y)) + 
  geom_blank() +
  geom_phylopic(aes(image=uid), 
                data=id, 
                x=.5, y=.5, size=.8
                ) +
  geom_phylopic(aes(image=uid), 
             data=id, 
             x=.2, y=.85, size=.3, 
             colour = 'steelblue', angle=180
  ) +
  labs(x=NULL, y=NULL, 
      title='耗子尾汁', 
      subtitle = '做学术要讲伦理')

3 猫咪

options(phylopic_width=128)  # 抓的是128px的图，其他数字报错哦

sth = 'Felis catus'  # 科学名
id = phylopic_uid(sth)  # uid对应了相应的图

d = data.frame(x=0:1, y=0:1)
ggplot(d, aes(x=x, y=y)) + 
  geom_blank() +
  geom_phylopic(aes(image=uid), data=id, x=.5, y=.5, size=.4, colour = 'steelblue')

4 火烈鸟

sth = 'Phoenicopteridae'  # 科学名
id = phylopic_uid(sth)  # uid对应了相应的图

d = data.frame(x=0:1, y=0:1)
ggplot(d, aes(x=x, y=y)) + 
  geom_blank() +
  labs(x="", y="") +
  theme(axis.ticks = element_blank()) +
  theme(axis.text = element_blank()) +
  theme(axis.title = element_blank()) +
  geom_phylopic(aes(image=uid), data=id, x=.5, y=.5, size=.4, colour = 'red')