An standard way to visualizing GO ontology data by using ggplot

R: ggplot, ggplot, adding extral lines in ggolot

R: ggplot, ggplot, bind2

R: ggplot, ggplot, curve

R: ggplot, ggplot, hex

R: ggplot, ggplot, quntile plot

R: ggplot, ggplot, rangeframe

R: ggplot, ggplot, rect

R: ggplot, ggplot, rug plot

R: ggplot, ggplot, segment

R: ggplot, ggplot, for step plot

R: ggplot, ggplot, for map plot

alluvial plot package for ggplot

animate solution package for ggplot

jpeg package is a library for reading image file to R. By doing those, you can read the rgb value from a image and do calculate you like!