关键词: 散乱点 VTK 平坦度 三角剖分

Abstract:

Scattered point data can be easily generated in most fields such as reverse engineering for mechanical products and geographic information systems. In order to extend the applicability of data processing and surface rendering on the VTK-based visualization platform, a new method is presented which canconvert scattered points into the standard VTK data format. As the core of the conversion process, an algorithm of incremental mesh construction is int   roduced, along with the self-adapting flatness. Thus surface rendering can be carried out with the VTK pipeline. The algorithm implements the triangulat  ion in three dimensions directly and adjusts the approaching error parameter dynamically. The results of the examples show that surfaces of the models c an be reconstructed in an effective and reliable way. The method is significant for both the triangulation analysis and the VTK visualization process.

Key words: scattered point, VTK, flatness ;triangulation