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The design of hub and shroud can be expanded optionally. Therefore additional curves can be added on inlet and outlet side in order to design complex contour curves.

The additional inlet and outlet curves can be switched to any curve type (Bezier, Circular, Straight, Polyline) by their own popup menu.

Tangential transition

The tangential transition between neighboring curves can be switched on or off using the icon beside the the first or last Bezier point:

tangential connection

non-tangential connection