Viper Add-on by Emilio Morello

edit directly on objects in Rhino with GH
see http://www.mxp3d.com/node/1955
http://www.mxp3d.com/sites/default/files/2013-08-15_0943.png

FYI the name “Viper” is also being used by the developers of DIVA-for-Rhino. Viper is the thermal simulation component for grasshopper that they have developed.

http://diva4rhino.com/user-guide/grasshopper/thermal

thanks for the information, at the time viper is only a temporary name
giorgio