Through adjusting shape parameters, one can design the curve interactively and by giving appropriate values to shape-preserving parameters, one can get a monotonic interpolant. 通過調整形狀參數可互動式修改曲線形狀，適當選取保形參數曲線是保單調的。
Based on the analysis and evaluation of wrinkle shape, a parameter to study.the side-wall wrinkling problems in deep drawing of axisymmetrical curved parts is determind. 在分析與評價幾種表述皺紋形狀參數的基礎上，確定了適用於研究軸對稱曲面類零件側壁起皺問題的皺形參數。
