关键词: 快速成形, STL模型, 自适应分层算法, 三角面片

Abstract: Some kinds of fast slicing algorithms based on the STL models were analyzed in this paper. Firstly, sorting the apex of the triangular facets according to ascending order in their slice direction was proposed to filter out redundant vertex quickly; secondly, the triangle-vertex list and facet vector were established to reconstruct the topology information of the STL model; finally, the efficient adaptive slicing algorithm was realized with geometric continuity algorithm, and through C++ programming, this algorithm was realized. The experimental results show that the technique is feasible that the layered manufacturing in rapid prototyping technology can be applied to threedimensional carving CAD/CAM.

Key words: rapid prototyping, STL model, adaptive slicing algorithm, triangular facet