TRIANGULAR PLOT

This is an image of a Triangular Plot, which is a type of geovisualization. A Triangular Plot plots three distinct variables.

This Triangular Plot is an estimate of the probable outcome of the (British) election, based on 2005 opinion polls recorded on Anthony Well’s website. The axes of the figure show the estimated fraction of the population intending to vote for each of the major parties; the white circle shows the current estimate from opinion polls. The colored areas show the regions of the plot in which -- under the assumption of uniform national swing -- each of the corresponding major parties would win a majority in Parliament.