Firstly, for determining the rule and region of ordered parameter value, an ordered parametricspace is constructed by choosing the free shape with mixed function.
首先，任意选取一个具有调配函数的自由形状构造一个有序参数空间，确定有序参数的取值规律和区域；
3
Space Deformations controlled by parametric curve or surface are important methods for geometric shape edit and flexible object animation.