TextZoomable(x,y,va​rargin)

Text that zooms as you zoom your plot, rather than staying at a fixed font size. Adds text to a figure just like the text() command, except that this text grows/shrinks with figure scaling and zooming, unlike normal text that stays at a fixed font size during figure operations. Note it scales with figure height - for best scaling use 'axis equal' before setting up the text. Now revised to work with R2014b and still be backward compatible.