@pablogarciaamorena_mirrakoi. Hi Pablo, I have realized that I need to rebuild input curves to 2-point curves, but I don’t quite understand this workflow. If I extract a Xirus edge that has more than 2 points and I rebuild it to have 2 points, I believe this changes the geometry which would make it no longer match the edge it was extracted from and as a result you would also loose continuity. Right?
The other part I don’t understand is when to select G1 or G2. I understand that G0 breaks it down to a polyline with straight segments, but I’m not sure when to use G1 or G2.
I have converted a simple Rhino degree 3-4 control point curve to a Xirus object and rebuild that to a 2 point curve. After this I converted them back to Nurbs to see the difference. Having three control points inline with each other for G1 makes sense, but I have no idea when to use G1 over G2.
My workflow is typically a mix of rigid constraints and loose constraints. I do a lot of work in the bicycle industry and the shape definition of the tubing main surfaces is usually quite flexible and this can be done with few control points, often times single span where possible. However, the primary surfaces need to be connected to rigidly defined analytic geometry. Seat tubes need to be round/straight and in precise locations. Dropouts need flat connection surfaces in precise locations, bottom brackets need round flat faces in precise locations etc, etc. And yes, this often times leads to secondary/tertiary surfaces that have a high number of control points and great difficulty maintaining continuity/surface quality.