I have again a problem:
I'd like to build a ruled surface from to curves;
the first curve is a Geom_BSplineCurve
the other is a Geom2d_BSplineCurve lying on a Geom_BSplineSurface
I don't manage to convert my second curve into Geom_BSplineCurve so as I can use GeomFill::Surface
Please, someone could help me?