Create a lofted surface which passes through given section curves.

Input parameters:

1. Cr → Loft section curves.
2. Ty → Loft type.
   • 1 → Loose
   • 2 → Normal
   • 3 → Tight
   • 4 → Uniform
   • 5 → Ruled
3. Cl → If true, the lofted surfaces will wrap from the last to the first section curve.
4. Pa → Optional start point of lofted surface.
5. Pb → Optional end point of lofted surface.
6. Rb → Optional rebuild control point count. If omitted, the resulting surface will not be rebuild.
7. Rf → Optional refit tolerance. If omitted, the resulting surface will not be refitted.

Output parameters:

1. Sf → Surface lofted through the section curves.