The designer could then create a curve by drawing along the spline with a pen or pencil.

然后，设计者就可以用钢笔沿样条绘制出一条曲线。

youdao

The designer could then create a curve by drawing along the spline with a pen or pencil.

然后，设计者就可以用钢笔沿样条绘制出一条曲线。

youdao