Author(s)

Yuan Zhang, Hongzhi Tian

Corresponding Author

Yuan Zhang

Abstract

In order to solve the problems on the holes caused by various factors in the 3D model, which have brought difficulties to the subsequent operation of the 3D model, a 3D hole repair method based on curvature feature is proposed. The basic concept of this algorithm is using Advancing Front Method to quickly fill holes for initial repair of the mesh, and then using the mesh optimization technol-ogy to adjust the initial mesh based on the curvature feature of the hole boundary point. First, according to the properties of the boundary edge in adjacent triangles, the boundary of the hole is identified, and then the Advancing Front Method and the relations between included angles of triangle top mark, the initial filling of the hole is completed. After that, combined with the curvature standard, refinement is made for hole mesh. Finally, geometry adjustment is made for the mesh top mark of repaired hole, to make it in natural transition with the surrounding mesh. Expe-riments show that the algorithm is simple and stable, as well as can complete the repair of different types of holes.

Keywords

Triangular Mesh, Hole Repair, Advancing Front Method, Triangulation, Mesh Refinement