Bend-A-Roni is a Scala implementation of "As-Rigid-As-Possible Shape Manipulation" (Takeo Igarashi, Tomer Moscovich, John F. Hughes, "As-Rigid-As-Possible Shape Manipulation", ACM Transactions on Computer Graphics, Vol.24, No.3, ACM SIGGRAPH 2005, Los Angels, USA, 2005. PDF).
Stay tuned for more.