setwd("F:/数据可视化/R/R语言学习笔记/可视化/ggplot2/商务图表")
CairoPNG(file="taiji.png",width=1000,height=1000)
ggplot(data=NULL)+
geom_area(aes(upcirclex,upcircley),fill="white",col=NA)+
geom_area(aes(downcirclex,downcircley),fill="black",col=NA)+
geom_area(aes(leftcirlex,-leftcirley),fill="white",col=NA)+
geom_area(aes(rightcirclex,rightcircley),fill="black",col=NA)+
coord_flip()+
annotate("text",x=-500,y=0,label="●", color= "black", size=80)+
annotate("text",x=500,y=0,label="●", color= "white", size=80)+
geom_path(aes(bigcirclex,bigcircley),col="grey60")+
theme_nothing()
dev.off()