As mentioned at the start of this section on modelling discontinuities, there are different methods to model discontinuities dependent on which type of discontinuity you wish to achieve. We have seen that chines and knuckles can be created easily using compacted control points. In the section on bonding surfaces we will look into using bonding surfaces to create a knuckle or chine.

Do not use compacted control points to model a discontinuity in a surface edge. e.g. cut-away sheerline. You can end up with more control points than you really need which makes fairing very difficult or impossible.

Using compacted control points to model a discontinuity in an
edge results in difficulties achieving a fair hullshape.

This concludes the chapter on modelling discontinuities. Next section is Chapter 8 Trimming Surfaces.