Can u tell me the application of the spline
Splines can be used anytime you need a curvature that is not as simple as an arc. The mouse you are using most likely was modeled using splines to create the "organic" shape. As an example, if I were asked to model an egg I would use a spline and a revolve feature.
Splines can be usefull to create paths for sweeps or patterns.
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