%0 Journal Article %T Geometric Characteristics and Constructions of Cubic Indirect-PH Curves %A Yang Shen %A Xingxuan Peng %J Open Access Library Journal %V 9 %N 11 %P 1-9 %@ 2333-9721 %D 2022 %I Open Access Library %R 10.4236/oalib.1109439 %X The geometric characteristics and the construction for cubic indirect Pythagorean-hodograph (indirect-PH) curves are presented in this study. By introducing an auxiliary control point and a parameter respectively, two geometric characteristics in terms of quantities related to B¨¦zier control polygon of the curve are given. Furthermore, based on the derived conditions we provide a new geometric modeling approach for the construction of cubic indirect-PH curves in detail. And at the end of this paper several numerical examples are presented to show the feasibility and validity of our algorithm. %K Indirect Pythagorean-Hodograph %K B¨¦zier Curves %K Geometric Characteristic %K Control Polygon %U http://www.oalib.com/paper/6783907