For several years, researchers have focused on Reverse Engineering techniques, which
generate the geometric model of an object from a point set, a mesh, a triangulation, etc …

In this paper, we investigate how to compute the minimum distance between a point and a
parametric surface, and then to return the nearest point (foot point) on the surface as well as …

It is important to accurately calculate flattening points when reconstructing ship hull models,
which require fast and high-precision computation. However, some search algorithms, such …

To compute the minimum distance between a point and a parametric surface, three well-
known first-order algorithms have been proposed by Hartmann (1999), Hoschek, et …

Given a CAD model, a preprocessing step of checking its geometrical and topological
correctness, as well as the consistency between them, is usually carried out before actual …

In wireless sensor networks, there are some network functions and applications that need to
know the local time of a node in order to timestamp a sensed data. In general, it may be …

NURBS 曲面逆向求值是CAD 几何内核中最基础的算子之一, 即计算NURBS
曲面上三维空间点对应的二维参数值. 然而, 当前求解算法计算效率不高, 鲁棒性不强 …

点至平面代数曲线的正交投影计算在计算机图形学, 计算机辅助几何设计领域,
特别是交互式设计等应用中有着非常重要而广泛的运用. 基于牛顿梯度下降法 …

Regarding the point projection and inversion problem, a classical algorithm for orthogonal
projection onto curves and surfaces has been presented by Hu and Wallner (2005). The …

针对现有CAD 几何引擎和VLSI 设计中缺乏高速, 高精度平面线段距离求解算法的问题,
提出一种基于局部坐标系的平面线段距离求解算法. 首先通过坐标变换构建局部坐标系; …