Generating Objects from Curves
You can create surfaces and polygon meshes from curves in several ways:
• Extruding an open curve along two guides (Birail).
• Picking a series of curves in U and V (Curve Net).
• Extruding a curve along an axis.
• Extruding a curve along another curve.
• Extruding with two profiles, morphing one into the other as it runs along a rail curve.
• Picking the four curves to use as boundaries (Four Sided).
• Creating a series of profiles and lofting them.
• Revolving a curve around an axis or another curve.
For information about creating curves to work from, see Curves [Surface and Curve Modeling].
For information about how you can modify the generated polygon meshes and surfaces further, see Deformations, as well as Modeling Polygons & Polygon Meshes [Polygon Modeling] and Surfaces [Surface and Curve Modeling],
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