In this paper, we present novel techniques to modify freeform shapes defined by implicit algebraic models. These models are first simplified by introducing a decomposition in terms of conic-line primitives and then the desired local/global shape changes are produced by varying the parameters of these primitives. A decomposed model provides efficient control of each primitive using its canonical...

The shape of the human erythrocyte is normally maintamed in vivo as a biconcave disc for 120 days. In vitro. the cell shape can be altered readily by amphipathic cornpounds; however. given time and an energy source. the cells can recover the discoid morphology. An active shape control mechanism is postulated to regulate erythrocyte shape. The shape recovery process is a necessary element in rev...

Related DatabasesWeb of Science You must be logged in with an active subscription to view this.Article DataHistorySubmitted: 1 June 2021Accepted: 21 September 2021Published online: 05 January 2022Keywordsbifurcation analysis, shape optimization, Moore--Spence systemAMS Subject Headings65P30, 65P40, 37M20, 65K10Publication DataISSN (print): 1064-8275ISSN (online): 1095-7197Publisher: Society for...