Hi Tom,

> Btw, Michael, what about automotive design - a carbody is the fine art of joining many surfaces with
> different curvatures -precision required but at he same time deep inside the "greyzone" ?

Well, there are some NURBS modeling programs such as Alias Studio that are focused on doing production automotive design using NURBS surfaces. It's also a super expensive program with a very high technical learning curve with a whole lot of difficult to use very specialized commands.

MoI is not focused on that type of use that requires a huge amount of technical training - MoI is much more focused on trying to make the strongest areas of NURBS modeling (again, mechanical design using 2D curves and booleans primarily) to be more user friendly to people without requiring an advanced math degree and a year of training just to operate the program. So MoI does not have the exact same NURBS toolset as Alias Studio for example - it has not been a priority to try and develop those exact same tools in MoI since it's not a fit with what MoI is trying to focus on.

I think it's likely that at some point in the future I'll try to expand MoI somewhat more into that territory and try to add more tools for matching surface continuity, but currently if matching surface curvature between a patchwork of NURBS surfaces is what you need to do, you would want to do that in a different NURBS modeling program such as Alias AutoStudio or Rhino with the VSR shape modeling add-on and not MoI. But those are complex and finicky tools to use so you should expect to spend a lot of time and energy going up a very steep learning curve before you would be very productive with them.

- Michael