基于地形数据的瓦片金字塔构建与组织

摘要

首先介绍了多分辨率金字塔模型,为了实现海量地形数据的实时绘制性和多分辨率处理,提出了一种改进的瓦片金字塔构建算法,然后分析了瓦片的索引和瓦片间的拓扑关系,并对论文中算法的可行性进行了实验证明.%Firstly the paper introduces the pyramid model of multi - resolution, and proposes an improved method of building tile -pyramid to implement the real — time rendering and processing of enormous terrain data. The index of tile and topological relationship between tiles are then analyzed and the method proposed is proved by experiment in the paper.