公开(公告)号：US20150294502A1

公开(公告)日：2015-10-15

申请号：US14684123

申请日：2015-04-10

Applicant: DASSAULT SYSTEMES

Inventor： David Leo BONNER ,  Pascal SEBAH

IPC: G06T17/20

CPC classification number: G06T17/20 ,  G06F17/175 ,  G06F17/50 ,  G06F2217/08 ,  G06T17/00 ,  G06T2200/04 ,  G06T2200/24 ,  G06T2210/56

Abstract: The invention notably relates to a computer-implemented method for designing a three-dimensional modeled object comprising providing sample points of 3D curves sketched by a user; determining a volumetric function, within a predetermined class of volumetric functions, as the optimum of an optimization program that explores orientation vectors defined at the sample points under the constraint that the explored orientation vectors be normal to the 3D curves and respect a minimal rotation propagation condition over each 3D curve, wherein the optimization program penalizes a distance from the explored orientation vectors; and fitting the sample points with an isovalue surface of the volumetric function.

Abstract translation: 本发明特别涉及一种用于设计三维建模对象的计算机实现方法，包括提供由用户草拟的3D曲线的采样点; 确定在预定类别的体积函数内的体积函数作为最优化程序的最佳值，所述优化程序探索在所述探索的取向向量垂直于所述3D曲线并且遵守最小旋转传播条件的约束下在所述采样点处定义的取向向量 在每个3D曲线上，其中优化程序惩罚与探索的取向向量的距离; 并用等值面函数拟合样本点。