Animated Beating Heart in R

animatedheaRt.R

############################################################
## Title: Animated Beating Heart in R
## Author: Jared Knowles
## Forked: Tony Boyles
## Date:   February 14, 2014
############################################################

library(animation)
library(ggplot2)

t<-seq(-100,100,length.out=2010)
x<-16*sin(t)^3
y<-(13*cos(t))-(5*cos(2*t))-(2*cos(3*t))-(cos(4*t))
heart<-data.frame(x=x,y=y,order=t)

if(!file.exists("heart.gif")){
  file.create("heart.gif")
}

ani.options(outdir=getwd(),imgdir=getwd(),tempdir=getwd())

saveGIF({
  for(i in c(seq(0.85,1.00,by=.01),seq(0.99,0.85,by=-.01),seq(0.86,0.91,by=.01),seq(.90,0.86,by=-.01)))
    print(
      ggplot(heart, aes(i*x,i*y)) +
            geom_path(color="red", size=5)+
            xlim(-16,16)+
            ylim(-17,12)+
            labs(x='', y='')+
            theme_bw()+
            theme(
              axis.text.x=element_blank(),
              axis.ticks=element_blank(),
              axis.text.y=element_blank())
      )
},movie.name="heart.gif",interval=0.03,ani.width=300,ani.height=300,convert='convert')

heart.gif

If you can't see it beating, that's because most webservers will serve gifs as jpgs, which causes the browser to view them as static. Try running the R Code to create your own.

...or download the raw version and open it in an image previewer...