If we use one direction Boundary Blend is able to work, but if we have only one boundary on the other direction we must first manualy create those boundary by another BB or 3D spline etc.
In my idea it can be much simple: if user haven't got the missing 4th curve/boundary Creo use as default "virtual spline" (on fly) with conditions at end like using option "add side curve influence".
This version off BB will be much more innovative as it is at the moment and save a lot of designer's time 
e.g. I'm using this as patch between sweeps on mainly corners of engravings and this can be even five hundred times per model, so it'll help me a lot!
Example of the situation can you see on this screenshot:
This virtual boundary as default will obtain free condition of course and Curve_73 should be virtually created on fly in this idea!
1 Comment
