样条曲面具有灵活性，概念简单，易于通过操作控制点控制形状，所以对于自由曲面建模十分重要。

Spline surfaces are very important for the modelling of free form surfaces, because of their flexibility, simple concept and easy shape manipulation by the control points.

youdao

样条曲面具有灵活性，概念简单，易于通过操作控制点控制形状，所以对于自由曲面建模十分重要。

Spline surfaces are very important for the modelling of free form surfaces, because of their flexibility, simple concept and easy shape manipulation by the control points.

youdao