Triangular Plot

http://www.google.com/imgres?q=Triangular+PLot&um=1&hl=en&client=safari&sa=N&rls=en&biw=1205&bih=706&tbm=isch&tbnid=lX7Ktsi11XtDBM:&imgrefurl=http://www.pmel.noaa.gov/maillists/tmap/ferret_users/fu_2007/msg00384.html&docid=78DiYy5ewF_ioM&imgurl=http://www.pmel.noaa.gov/maillists/tmap/ferret_users/fu_2007/jpgCqrZqdDwYG.jpg&w=463&h=464&ei=8JfKTsm_CMKEsgL26-A2&zoom=1&iact=rc&dur=1057&sig=112690992776489872722&page=1&tbnh=155&tbnw=152&start=0&ndsp=16&ved=1t:429,r:0,s:0&tx=89&ty=58

A Triangular plot represents three different variables such as percent of voters which can be seen in this particular map. It shows a comparison of three variables on three equal sided triangle.