Hi Syziph,

> Is there a link explaining how to create such commands.

Sorry, there isn't really any documentation available about how to create these commands, Petr learned how just by reading over the existing commands which you can find inside the \commands subfolder in MoI's folder in \Program Files.

It takes quite a bit of time to properly document all the stuff involved with making a custom command - if I were to work on that I would have to stop development of the regular program while I worked on the documentation. So I don't expect to do that for quite a while yet.

Re #1 - I think I understand what you are saying, but it would be a lot clearer if you could post a model with your 3 splines in it.

Re #2 - There isn't anything available yet in MoI to calculate the surface area. I do expect to add a set of analysis and measurement tools in for version 2.0, but that will be a little ways out. In the meantime it is possible to do the calculation by bringing the object into a different program such as Rhino.

- Michael