lballabio/quantlib — pull request #59 by cowmoo (2013-12-12 21:37:37+00:00)
Title: Check in BlackVarianceMoneynessSurface to experimental. 

It's an extension of BlackVarianceSurface that is plotted in moneyness so that the surface can extrapolate volatility at a new price point with the original volatility term structure.

e.g., demonstration of the usage of this new class:
http://pastebin.com/BL7bFuUj