These CASE Grasshopper and Revit tools allow for the transfer of element information between Grasshopper and Revit. A combination of a Grasshopper components and a Revit "Element Placer" add-in are used for this system. The interop. is enabled by a "web friendly" json data file.
The videos below show the creation and updating of Revit Levels and Grids...
...more geometry types to come!